Find cheap flights from Denver to Bulgaria

Find cheap flights from Denver to Bulgaria

Search hundreds of travel sites at once for deals on flights to Bulgaria

Round-trip
Economy
Denver (DEN)
Bulgaria
Fri 6/18
Fri 6/25
Any month
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Good to know

Low season

NovemberBest time to beat the crowds with an average 3% drop in price.

High season

DecemberMost popular time to fly with an average 2% increase in price.

Average price round-trip

$1,060(avg. price over the last 2 weeks)

Good deal round-trip

$818or less

Good deal one-way

$356or less

Top tips for finding cheap flights to Bulgaria

  • Book at least 3 weeks before departure in order to get a below-average price.
  • High season is considered to be May, June and July. The cheapest month to fly to Bulgaria is March.
  • Morning departure is around 22% more expensive than an evening flight, on average*.
*Average of the lowest prices shown in KAYAK’s search results for departures within the next 30 days

FAQs - booking Bulgaria flights

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Top 5 airlines serving Denver Intl to Bulgaria

Scores according to KAYAK customer reviews

8.3
Qatar Airways
Overall score based on 10,993 reviews
8.3
Boarding
8.2
Comfort
8.6
Crew
8.3
Entertainment
8.0
Food
Airline reviews

Pros: "Yes"

Pros: "The crew was amazing and the food was delicious. The sit was comfortable with a lot of legroom."
Cons: "I like it the way it is. Keep doing the good job."

Cons: "Good service and better than average let room and overall seat confirm, which is a big plus on long haul flights. Will definitely choose to fly Qatar again."

Pros: "Crew was excellent"
Cons: "Food could be better and please offer drinks before you serve meals like European air lines."

Pros: "Great food, great seats, everything was smooth overall"

Pros: "Seat was comfortable and entertainment selection was good."
Cons: "More snacks on a long flight would be good. Hot chocolate instead of tea and coffee would be appreciated by non-tea/coffee drinkers."

Pros: "The supervisor has a good customer care and all the crew are so wonderful. I was so pleased. Thank you."

Cons: "The flight is too long"

Pros: "Cabin crew attentive, cabin quiet, seats comfortable, rest rooms clean."
Cons: "Hot food was luke warm, portions skimpy."

Pros: "Departed on time. Courteous staff."
Cons: "I had a continuing flight in first class but was not allowed entrance to the first class lounge."

Pros: "The Crew were professional, friendly and comforting. The A380 Business Class is the best way to fly. Smooth journey, very comfortable reclining beds with enough room to within the bed area to move around with adequate space. The Wine list was excellent with a great choice and variety."
Cons: "Nothing to do with the flight...but Qatar could have offered an airport hotel room to their Bus. Class passengers for the 9 hour delay....we did have the Lounge, but a shower, rest and comfort after another previous 5 hour 30 minutes flight from Athens 11.30am Start to 2.00am start from Doa."

Pros: "The food and crew were great"
Cons: "Older plane the tv panels were faded"

Cons: "Great selection of movies and the food was really good as well."

Pros: "Seat was sufficiently comfortable to get some rest and I was very ready to be done with the flight when the plane landed."
Cons: "Breakfast option - eggs and a sausage had much to be desired. Other meals were fine."

Pros: "The Flight from Arusha was so convenient in the timing and it was perfect and on-time."
Cons: "Nothing. Everything was perfect"

Pros: "The entertainment was reasonable, I enjoyed the festive choices."
Cons: "Screaming babies, obese people sat next to me, water rationing, not a pleasant experience. Arrived sleep deprived and dehydrated. I have much better experiencs on a visit to Australia - this was my third time this year!"

Cons: "Crew members are waking up for lunch and breakfast but not for snacks and other beverages. We are feeling hungry later. we aren't knowing when they ll provide."

Cons: "Zero customer service, absolute waste of money,. I should have read reviews before using your services"

Pros: "Service is courteous, both on the ground and air. Food & entertainment was top-notch as well. One of the economy rest-rooms were out of order and I was allowed to utilize the business class restroom by the flight attendant. Head bursar was very apologetic and sympathetic about the whole issue. Enjoyed my flight, again on Qatar!"

Pros: "Very affordable flights, good value for money. Most of the journey from Sydney to Oslo (via Doha) went qiluite smoothly)."
Cons: "The only thing I didn’t like about the experience was the fact that you can only check in one piece of luggage on economy class, and one very sour individual at the gate when boarding."

Pros: "Every thing is good in Qatar airways"

Pros: "Nothing"
Cons: "They cancelled my trip"

Pros: "- Service - Food Quality"
Cons: "- Food Quantity - Entertainment System - very limited (or old) options - No Internet - Leg Space is challenge"

Pros: "I really enjoyed the flight, which was almost 15 hours long. I give an overall 4 star review for this flight. The boarding process was pretty organized (without including the ignorant passengers who can't read their zone numbers, haha) because they called us up group by group, in a speedy process. Even inside, the cabin crew welcomed us aboard and showed us where our seats are. This leads me to my 5-star rating of the service. Very warm, friendly, and generally helpful cabin crew Qatar Airways has. They fulfilled all my needs even if they had to go out of their way. As for entertainment, I was very surprised at how many great movies they have! Especially the new ones! I would not be bored again with this selection. Food was okay to be honest. It was a hot meal that satisfied my hunger and tasted good, but maybe it's just me and airplane food. Doesn't taste right for me. And to be honest, I was cramped. Not even me but many other passengers felt like the seats were too small. Overall, Good experience!"

Cons: "Out dated inflight entertainment system"

Pros: "I truly love this Airlines. The crew is always friendly. The food is always above par for airplane food"
Cons: "N/A"

Pros: "Everything!!!! The best airline in the world!"

Pros: "Great food etc"

Cons: "the wifi was average at best. I get that we there are limitations...but if the service is going to be this poor, make it free & unlimited."

Pros: "I liked the food, the crew, and the team at the airport was nice and professional. There was a air host by the name of Zaid or Zain and he was from Bombay. Really nice person and very easy to talk to."

Cons: "Thank you"

Pros: "Aircraft was much better than the flight from US, food was great. The only thing I wished for was more movies."
Cons: "Lack of movies"

Pros: "Service"

Cons: "We were packed like sardines, it was very uncomfortable. And, by the time they got to me, they were out of the fish I wanted for my meal."

Cons: "The business class seats on this A330 are to tight when turned into a bed."

Pros: "Crew is very helpful and friendly. Camecthrough with drinks at good pace. Check in very smooth"
Cons: "Food - very mediocre and felt like each meal was similar"

Cons: "Other passengers pushing, coughing & sneezing without proper sanitary measures; dirty toilets. This reflects on the education level of passengers, not the crew, but it still makes flying into Jeddah on packed flights particularly miserable."

Pros: "It was not a full flight. It was ok."
Cons: "Well, I noticed when the person in front of me reclined their seat, I had a hard time adjusting the entertainment screen so I could see it properly."

Pros: "Excellent customer service, smooth boarding, good food."
Cons: ""Enhanced" screening at Doha airport not only was more invasive but also held up passengers until end of boarding."

Pros: "The airplane was spacious."
Cons: "The omelette was too tough."

Pros: "Website and in-flight service is quite good. Flights take-off and land on time. The crew is international and quite professional."
Cons: "Onboard entertainment system is not quite good. The touch screen is not responsive and the movie selection is not very good. This is where Emirates excels."

Cons: "The customer service of your company is the worst."

Pros: "Cabin crew was pleasant and at least smiled."
Cons: "Why was it necessary to have to queue to present your boarding pass to get into a sitting area only to have to queue again to actually board the plane? What was the point of having priority access with status with Qatar Airways as an economy passenger to get into the seating area only to have to wait for ALL other passengers to then board ahead of you onto the actual plane especially when they say they allow priority boarding for those with status on the airline?"

Pros: "First of all I have taken Qatar airways to Europe and US HOVER when it comes to Third world like Asia and Africa the send thier most dirty broken airline!!in thialand the pressure was not right according to pilot we stayed on the run way 4 HOURS offered water wrf.? No one communicated with US I think your airline is typical Arab mentality unless you are white I. E American you don't give a shot about your costumers this is the second arb line I droped I will never take ur plane ever!! When I got to Doha all they did was through stupid voucher for food missed my flight no apology rude as staff disgusted y their behaviour and lack of care missed imprtant meetings NEVER AGAIN RACIST AIRLINE TREAT WHITES WITH RESPECT IT NOT BLACK'?? REALLY WELL I I'LL TAKE MY MONEY AWAY THEN I will make Co viols decision to never fly with u"
Cons: "Everything racist disgustinget and never will take this airline nasty dirty broke down twice stayed in the plane for 4 hrs no one apologised"

Cons: "There was no water in the flight's restrooms"

Cons: "Cramped seating on long flight. Headrest not adjustable."

Pros: "The entertainment and food was great. The service as well. They are very attentive to any request."
Cons: "When it was time to leave Doha, Qatar there was a massive delay which caused us to be late for any upcoming transfer in BKK. That told me that my would be delivered the next day. I am currently trying to figure out whether they have my bags or not."

Cons: "Even though we got off our connecting flight 30 mins before departure, the flight had "already left" as per the Qatar Doha crew and we were re-booked to the following day's flight. Very ridiculous."

Pros: "Very good attentive service"

Pros: "Seats were horrible and the crew was thr most unprofessional crew"
Cons: "Everything"

Cons: "They haven't all update information about covid update, workers had no idea about anything, rude and unhelpful I had to miss my flight because of their mess, stay at the airport for 4 hours to get my luggage back and get a hotel."

Cons: "I had difficulty checking online, because I didn’t have the right ticket number. By the time I contact you and get the right one all the windows seats or aisle seats in the airplane where taken. I had to go with middle seat which can be super tight and uncomfortable when you have two strangers on both of your sides for such a long flight. I wish they email me the right tiket number on time."

Pros: "Great experience, beautiful people, always smiling ant there to help you."

Cons: "More space and room seating"

Cons: "I didn’t make the flight to Antayla because the airport customs takes too long, kayak needs to let travelers know they need a visa and passport to travel through IST. Also tight connections are impossible."

Pros: "It is always better when this flight is operated by wide body aircraft, as was the case with A330 this time"

Pros: "Perfect was everything"
Cons: "Prices was high"

Cons: "They changed my seat at the gate, will be filing a claim to Turkish airlines."

Cons: "What is the point of paying business if you don't get the extras... No priority boarding, fighting for luggage overhead room, economy customers running to the front not allowing for comfortable disembarking of business class customers .. Just not what you would expect from business class."

Pros: "Si Much!!"

Pros: "Food was really nice"
Cons: "Crew wasn't caring, poor service"

Pros: "The food was excellent and the crew was super efficient."
Cons: "Tight bathroom and no leg room."

Pros: "We liked the ability to watch movies and television programs to pass the time."
Cons: "We did not like that to use Internet we had to pay an extra fee. We did not care for the food. We were not impressed with the cleanliness of the aircraft. We did not like that the bathrooms ran out of water to wash our hands. We did not like that flight attendants handled and served food with no water on the flight to wash their hands. Most flight attendants were unfriendly. The one gentleman that served us was pleasant. We really did not like that between the food service we saw virtually no flight attendants other than those sleeping in the area at the back of the plane. We did not like that we could not understand the announcements made. We did not like the fact that passengers were not reprimanded upon landing for using electrical devices and laptop computers even though an announcement had been made to turn all devices off and put them away. Once announcement was made not one flight attendant said anything to those people around us who did not follow the request. We did not appreciate the uncomfortable seats."

Pros: "Food was decent and the crew was great."
Cons: "The air conditioning did not work in the front part of the cabin. I asked about it but nothing changed. It was very uncomfortable for everyone in that part of the plane. The back was cool front was miserable."

Pros: "Nirmal"
Cons: "Ok"

Cons: "passengers with seats in the back of the plane should be boarded first."

Pros: "Nothing"

Pros: "Everything was perfect!!! I have no remarks!!!"

Pros: "Good entertainment"
Cons: "No soap in bathroom."

Pros: "Crew was friendly and helpful. Would choose Turkish Air again."
Cons: "Lost one of our suitcases. It was left in Istanbul and didn’t make it onto our connecting flight to Sofia."

Pros: "Staff was very friendly. Good was great. I was actually comfortable during the flight."
Cons: "It's a long flight. But that's unavoidable."

Pros: "Being able to stretch out and get some real rest makes a huge difference for me when trying to cope with time zone change west coast to Europe. Overall great experience"

Pros: "Smooth flight, great food"
Cons: "Other passengers."

Cons: "The entertainment system touch is poor. Unable to use when it does not respond correctly"

Pros: "The entertainment and services of crew"
Cons: "The vegetarian food was not that good..it can be made better."

Cons: "Seats were horrible - I've never been so uncomfortable on an international flight. Also, seat was broken and I couldn't push it back for sleeping. Flight attendant tried to help be but seat was broken"

Pros: "There is nothing bad that I can say about the trip. From the hot towels to refresh yourself to the friendly crew to the food. The entertainment choices were good and easy to use. I would defiantly fly with them again."

Pros: "I am a business woman and my time is very valuable. I was supposed to fly on May 18,2017 with Turkish Airlines and my flight was rescheduled for May 19 without prior notice,call or a text message.I was driving to Miami on the 18 th just to find out my dilghtbwas cancelled.No one have me an option or asked me to reschedule.I had to fly on the 18 May and I picked this day for a reason.No one from Turkish airlines was present at the airport on the 18 May."

Pros: "Price, service."
Cons: "Can not take a laptop or Kindle on board (no fault of Turkish Airlines, but still an option available when flying from other places to the US)."

Pros: "Crew and entertainment were excellent"
Cons: "Seat assignments I made on line got changed."

Cons: "My luggage just disappeared on a flight from VIE to Istanbul. Those lost baggage handlers are totally unmotivated also. No explanation at site, barely any email follow up. That's it????? Also on the way back they took away cameras. My professional camera and lens equipment was handled poorly, thrown around carelessly and the lens got damaged. I am quite unhappy with this airline"

Pros: "Crew was excellent needs more room in front of the chairs specially when you are on a plane for 10 hours"
Cons: "Too tide in front of the chairs"

Pros: "The seats seemed further apart, thus more leg room for my long legs. I was lucky to have all 3 seats so I could lie down and get some much needed sleep. New seats seem flatter and more comfortable to lie upon if one is lucky. Crew very personable and helpful"
Cons: "I had FOUR TKA flights in my travels to and from Madagascar last month. Nearly EVERY seat I tried did NOT recline, nor could crew fix any! Most unpleasant to sit for 13 hrs. behind large man whose seat did reclione and mine could not. 2 yrs. ago I flew to Niger on TKA and I found the food better back then. Please keep the delicious Turkish food I fear a down grading for economical reasons. Don't do it."

Cons: "I missed this flight also and tried to get a refund for it because the times were not good for me."

Pros: "Everything was good except the airplane.. i was on row 13 and the cabinet was warm and air-condition was not working fine.. i reported this ti the flight attendant. She confirmed the temp was set to 23 C however it was definitely not less that 26C .. also it took long time to serve the hot meal although we were on rhe plane and the flight depart8 got delayed for 90 minutes due to technical problem. On the other hand, seat were comfortable and flight attendants were so nice and friendly.. also Turkish lounge and airport were good"

Pros: "Overall"
Cons: "Update your multimedia for entertainment"

Pros: "food was good, good entertainment, comfortable seating"
Cons: "service was slow and inefficient"

Pros: "Even on short flights they still provided lunch and beverages, which unfortunately you don't get on such short flights (less than 60 min) with most companies. Still they maintain their service impeccable."

Pros: "Everything from check-in to coming back home was great. The most friendly crew, clean cabin and lavatories. The food was excellent and plenty. The best part was that I could check in 2 luggages per person in addition to the carry-on!!! Yes 2 pieces! Can't forget the little pouch they give you with slippers, socks, tooth brush kit, ear plugs, and the sleep mask for your eyes. By industry standard, the head phones are better than most other. You feel like a first class traveller in economy when you compare to a similar booking with other european airlines."
Cons: "Because of the fact that they are a part of star alliance I thought that we would be stacked like economy cargo as done with lufthansa, swiss, sas, austrian etc., but turkish airlines completely lives up to and is the star in that alliance, something their partners can learn from."

Pros: "I like everything regarding the airline."
Cons: "The airport was attacked by a terrorist and hour after I left to Skopje. I know the airline has nothing to do with it but they should pressure the airport to have more safety for the passengers or find an airport in another country that is safer like Macedonia or Bulgary. Just as a temporary thing while things become safer in Turkey. In other words, only stop in Turkey for people who is flying to that country. Connecting flights should stop somewhere else."

Pros: "Comfort Movie Selection Friendly Hostess Thoughtfulness"
Cons: "None"

Cons: "I did not like that it was a delay from 1 hour with the flight"

Pros: "very good food!! and excellent choice of movies"

Cons: "This is the second time in a week Turkish Airlines are delaying my flight with no proper explanation on why this happened. Out of four flights, I had two delayed, and one was rescheduled half an hour ahead of time. Good thing I headed to the airport earlier. Turkish Airlines no more!!!"

Pros: "I liked evereting!"

Cons: "My food was allready open. And the flight attendant who gave it to me was ride throughout the plane ride. No USB. :("

Cons: "From Istanbul to Karachi turkish used old plane - In business class there is a major difference in seats and all other things as compared to newer planes. On their website at the time of sale they show the newer plane and its business class. SO overall did not felt right due to older style seats- However staff was still very courteous and pleasant"

Pros: "Everything was perfect."
Cons: "The 11 hours of long flight from Miami to Istanbul seemed shorter because of the great behavior of Turkish Airline!"

Pros: "This was easily the worst travel experience of my life. Kept waiting at the airport for 12 hours, then delayed 4 days. None of my hotel and food expenses were paid for -- for that you were required to return to the airport and wait in what were reportedly 7-hour lines. Then to top it all off, I was seated ahead of an exit row, where the seats don't recline. If I can avoid it, I will never fly Turkish Airlines again."

Cons: "40 minute flight delay and my luggage was lost/stolen."

Cons: "A quick drink service would have been nice, it was provided on the same flight going the opposite direction"

Cons: "100% as always.. delta has never disappointed! Keep up the good work guys"

Pros: "The crews were super accommodating and my seat was so comfortable I actually feel asleep which is something I have never done on a plane before."
Cons: "Load the plane from back to front. It makes sense as people leave the plane from front to back"

Pros: "Crew was friendly and efficient."

Pros: "Availability of WiFi, a charging port and media options puts Delta a step (or two) ahead of their competitors. The professionalism of the crew, as well as the complimentary food/beverage options are also excellent."
Cons: "Not the airlines fault, but my 6’4” frame doesn’t fit very well in a middle main cabin seat."

Pros: "We arrived eventually."
Cons: "Flight delayed three hours. Payed extra for an earlier flight. Very disappointing."

Pros: "Flight was delayed for more than 3 hours."
Cons: "Could have left on or close to schedule."

Pros: "Crew."
Cons: "Getting to Venice on time. Our late arrival cost me a 90 euro shutle."

Cons: "Have rhe right to carry at least one luggage per person at no cost. Besides carry on and personal item. Tickets prices and luggage costs are extremely expensive."

Pros: "Good airframe."
Cons: "3+ hours delayed; didn't arrive until 3AM."

Cons: "Seats are so small. Flight was delayed."

Cons: "Uncomfortable chairs for a three hour flight"

Cons: "Couldn't believe the flight attendant walked around with a tray of snacks and bananas. When I asked for the banana, she said, "Oh I'm sorry, those are for First Class only". Really?"

Cons: "Denver airport is far too large for there to be such a small security check therefore it took forever and I missed the flight. Delta tried to charge me $1000 for another ticket to Albany and I decided to fly with another airline for half the price instead"

Pros: "Nothing"
Cons: "I bought a ticket thinking i bought it through kayak but I actually bought a ticket through a third party in India. Where no one spoke good English. I called the agency to find out if I needed a Visa for my visit to Australia and the told me no. So when I showed up to the airport I didn’t have the right documents and I MISSED MY FLIGHT. Also the wouldn’t just change my flight and charge me the change flight fee. They cancelled my flight entirely and made me buy a whole new ticket!!! Worst flight experience I’ve ever had and this is not my first time flying to Australia or out of country."

Cons: "Had to wait for the crew from another flight before boarding p"

Pros: "Professional appearance of flight staff accommodating and sincete"

Pros: "Food and entertainment was good"
Cons: "The bathroom I used was disgusting."

Pros: "Boarding, friendliness of staff"

Pros: "Everything was easy and smooth."

Pros: "Anything from free WiFi, entertainment, leg room, commentary drinks and snacks. Great service!"

Pros: "Short flight"
Cons: "In SLC they boarded by row numbers and not zones. Weird..."

Cons: "Was unclear which zone was boarding. Legroom was comprised when passenger in immediate row ahead reclined seat early in flight."

Cons: "Engine problems-2 hour delay"

Pros: "Everyone was fairly friendly"
Cons: "Cramped foot room"

Cons: "Bags never arrived at the listed baggage claim. After 45 min, I saw bags on a different claim station and I notified everyone standing around. BUT, I filed a claim with Delta and was immediately given 2500 miles, as guaranteed!"

Pros: "Nothing!"
Cons: "Everything"

Pros: "Delta is great"

Pros: "On two of the legs of the trip they notice I was a tall person with long legs and upgraded me to seats with more leg room!! I didn't even ask. Thank you."
Cons: "On the way back there were open seats with extra leg room and I asked the gate attendant if it was possible to switch my seat to one with more room and they said they only could if I paid extra."

Pros: "Entertainment system is awesome and similar to what I usually see only on international flights."

Pros: "Most comfortable flight I have taken in some time. Spacious seat, power, good entertaiment, attentive flight crew. On time. Not usually a Delta flier, but times and destination made Delta the choice. Turns out a great choice."

Pros: "What a city.. Unique for hell sure..."
Cons: "Nothing"

Pros: "Newer plane with movies."
Cons: "Airlines pack you on so tight."

Pros: "Staff was courteous, flight uneventful but that's a good thing!"
Cons: "Long flight, difficult to sit that long (3 hrs plus)"

Pros: "It's a nice, comfortable flight with plenty of entertainment options."
Cons: "The coffee on board is lousy, but I'm not sure that is much of a surprise."

Pros: "Great,I loved it!"

Pros: "Food, crew, boarding"
Cons: "I had a screen in front of me that did not work. It was annoying. Fix it."

Pros: "The moviea"
Cons: "The time of night"

Pros: "I didn't like anything because the fly leat 3 hours"

Pros: "The cabin crew serving the main cabin were exceptional. They were efficient, kind and FUN. We were an hour late leaving and 2/3 of the plane was worried about tight connections. They handled it with grace giving each person their departing gate and asking everyone to let a gentleman off with a 10 minute connection. They made the flight memorably enjoyable."
Cons: "Being an hour late isn't ideal and I understand that it wasn't their fault (the plane was late arriving into Denver. Those things happen. They still goto people to Detroit in time to make connections--barely."

Pros: "Smooth ride. Delta got everything right from takeoff to landing."

Pros: "Entertainment options"

Pros: "The flight attendants were so nice and accomadating. Even came by to refill our waters! I've never been on a flight with such friendly flight attendants!"

Cons: "I drove 5 hours to get to the airport and unfortunately ended up delayed because of traffic and slow shuttles from parking. I arrived 1 hour before the flight, but security was so slow I didn't get to the gat until 10 minutes before arrival. There were no gate agents present and despite banging on the gateway door and other Delta agents at the adjacent gate, no one helped me. I can only surmise that they had already given away our seats, which were award tickets, GAINED BY BEING A LOYAL DELTA CUSTOMER. The gate agents were unapologetic and useless at rebooking, and I bought a ticket from Southwest instead. As i was trying to get to my sister's wedding, and repeatedly told the agents this, their behavior was particularly abominable. DELTA, YOU'VE LOST A LOYAL CUSTOMER."

Pros: "Was able to get on a flight after ours was cancelled. Delta was in scramble mode and their gate staff worked hard ot deal with a frustrated flying populaiton"
Cons: "After paying for first class round trip airfare, we were given seats in coach in the rear of the plane, in spite of empty seats (plenty of them) in first class and economy comfort."

Pros: "Flight attendants were lovely"
Cons: "Nothing"

Pros: "Excellent customer service. That doesn't seem to happen too often with airlines. Delta has been outstanding."
Cons: "No complaints."

Pros: "Flight took off on time and arrived about 30 minutes early."

Pros: "on time travel care in treating my visitors from Kenya Africa"

Cons: "Seats can be better."

Cons: "Boarding"

Pros: "Nothing"
Cons: "Poor customer service, was booked off twice without being informed."

Cons: "Nothing"

Cons: "Flight was delayed"

Pros: "Overall"
Cons: "Nothing to add?"

Pros: "Beautiful plane, economy seating more generous than normal, excellent in-seat entertainment (easy to navigate, more options than I've ever seen before). Well done!"

Pros: "I was happy with everything stewardess where very friendly everything went smoth"

Pros: "Great"
Cons: "No problems"

Pros: "The crew & service on our Denver to Munich flight were incredible. Courteous, professional & fun. A crew like this makes flying a pleasure."
Cons: "The seats in economy on the A-350 were a horror show. Couldn't have made them more uncomfortable if they tried. It seems with each new model Airbus puts out the seats regress to more medieval technology."

Pros: "best take off and landing I’ve ever experienced. 2 meals for an 8 hour flight and all the red wine I could drink!"

Pros: "Everything exceeded expectations. Lots of food, space, drinks, and excellent flight crew. Excellent video selection."

Pros: "Nothing"
Cons: "I have been transatlantic for forty years on various carriers. Without a doubt this was my worst flying experience ever."

Pros: "Lufthansa service is better than any us carrier"
Cons: "They didn’t track my luggage Lost bag for two days"

Pros: "This flight is usually fully booked but there happened to be an empty seat next to mine which was much appreciated"
Cons: "Nothing"

Pros: "I like the Aircaraft - A350-900 and service"

Pros: "Efficient"
Cons: "Plane was HOT"

Cons: "Horrible customer service"

Pros: "The bathroom downstairs"
Cons: "Late arrival inMunich, rush to connection and my luggage didn’t make it"

Pros: "everything"

Pros: "Great service. everything was on time, or early. overall pleasant experience."

Pros: "Slept like a baby with no interruptions."

Cons: "Limited choice of types of meal - no vegetarian option."

Pros: "Munich airport is very well organized."

Pros: "Crew was excellent. Plane was very clean."
Cons: "Seats in economy are miserably uncomfortable especially for a flight of this many hours."

Pros: "I liked that if I asked for something the crew would get to me rapidly. Extra leg room."
Cons: "Boarding process: just a lot of confusion. Inflight crew service poor: the was no time to have any brain reaction when they would pass by with coffee or anything...and when I asked for coffee the answer for a gentlemen of the crew was: coffee already passed by. Really!!?? Make sure that +$1200 are spent well. Rude or inattentive crew members shouldn’t be on flights that are that long...I had to nsist to have a miserable cup of coffee. Movie selection was poor. USB port didn’t work. Shame on you!"

Cons: "We had reserved our seats ahead of time but as we were boarding we were told that instead of sitting on row 4, we should seat at a row at the back of the plane. We were not notified ahead of time or or given an option. Flight attendants were refusing to help passengers and were actually rude to people who needed help to find a place for their luggage. Honestly, I didn’t expect this from Lufthansa and am very disappointed."

Pros: "See above"
Cons: "See above"

Pros: "Professional courteous staff, and comfortable experience (not easy for a 9-hour flight!). They do not try and "nickel and dime" your for moderate conveniences."
Cons: "Check in at the airport took 40 minutes, for a line that wasn't all that long, mainly due to not having all that many agents available."

Pros: "The best in-flight service I have ever had on the Lufthansa flight from Denver to Munic!"

Cons: "We were charged a rebooking fee by Lufthansa when customs searched luggage causing us to miss connecting flight"

Pros: "the crew are exellent"

Cons: "Entertainment options were not too good. The flight should have more American sitcoms and more Hindi options."

Pros: "The entire experience was great. Easy check-in, boarding, on time, friendly service, good food, good movies, and overall a really nice atmosphere for such a long flight. Would recommend this Flight to anyone."
Cons: "Nothing"

Pros: "Good food; comfortable seats; not a full flight, so plenty of space to move comfortably. I appreciated the restroom configuration which did not impede movement between seats (in the lower deck). Service was generally agreeable."
Cons: "The flight attendants were cordial, but a little grumpy at times. This may have just been a skewed impression because of language barrier. There really was nothing to complain about."

Pros: "The crew was friendly and provided constant updates while the flight was delayed multiple times."
Cons: "It is not a good idea to serve dinner at 1am in the evening when people are falling asleep. It would have been a better idea to serve lunch vs dinner"

Pros: "The overall feeling of this flight was 'relaxed'...after getting over the fact, that this was a huge (two story) airplane. Short flight from Denver to Frankfurt...only 8 hours:)"
Cons: "I would have loved to be offered eye shades and ear plus, since most passengers watched movies and i wanted to sleep:)."

Pros: "The people in the crew were very nice"
Cons: "The two seats that I paid for were the worst seats I've ever had in a plane They were the back two seats of the plane they were so small you should not have them there. I am a small person I had no room my wife is small she had no room. When the seat in front of me laid-back it almost hit my chest."

Pros: "Entertainment options were great and always make the flight go by faster."
Cons: "Seat was broken and didn't recline, stewardess had zero interest in assisting. She could have simply told me she was putting in a work order. Only one food was option available, the stewardess offered zero solutions for people with allergies to the option provided. The general theme was that the crew wasn't eager to please."

Pros: "Got upgraded to Business Class"

Pros: "Everything"

Pros: "This flight was fine. About as comfortable as I expected."
Cons: "I sat next to a man who had a vape pen and a can of chew with him. So the entire nine hours I spent smelling his mouth tobacco and I could do nothing about it. It was disgusting."

Cons: "Couldn't sleep because of seating."

Pros: "No communication"
Cons: "Unhelpful and now luggage has been lost going on 3 days in same clothes"

Pros: "Plane was quite new with fairly comfortable seats. Great individual screens and entertainment. Food was good. Staff was very friendly. I would fly with Lufthansa again."
Cons: "We might try for the direct flight next time (if it is available). Connecting in the Munich hub added a lot of time and some back and forth flying. I wish our Lufthansa flight back was also with lufthansa rather than United. United SUCKS in comparison. United needs to improve their game and their planes and their service."

Pros: "The flight was on-time!"
Cons: "The food was mediocre."

Pros: "See above"
Cons: "See above."

Pros: "The food was very good. The service, the preciseness."
Cons: "I didn't like the entertainment, there should me more options for movies in English and Arabic."

Pros: "Smooth and on-time."

Pros: "Flight departed 30 minutes late (due to a delay with the inbound flight)but a short flight time enabled the delay to be recovered and we landed in FRA on time. A very long taxi (30 minutes) made connection time for my next flight to be very tight."
Cons: "Why do LH insist on serving the 2nd meal/beverage service in economy class until 50 minutes before the flight lands? I suspect they would argue it allows passengers to have greater rest however in Y class the passengers are awake long before......could I suggest serving the snack earlier as it prevents a very rushed service as trays are collected and cabin secured very near to the actual landing?"

Cons: "The fees for the sporting bag was out of control expensive"

Pros: "fast and friendly checkin, fast boarding, easy transmit"
Cons: "food"

Cons: "Mi s-au pierdut bagajele !"

Pros: "Just in time take of and landing, staff friendliness"
Cons: "Snack"

Cons: "Poor selection of european films! There is a far bigger choice in e.g. Singapore airlines or Cathay Pacific. Rest was fine."

Cons: "Thank you"

Cons: "To arrive on time"

Pros: "Crew"
Cons: "Huge delay... :("

Pros: "Organisation"
Cons: "Short flight but not quite comfortable seats."

Pros: "Crew was good and entertainment was great."
Cons: "They charged me 200 euros for my bag and I wasn’t told that I couldn’t bring 1 luggage with me."

Pros: "Airline met us at the plane to transfer us to our next flight to Tel Aviv! Excellent service and great entertainment on the flight."
Cons: "The food. It was okay."

Cons: "Good"

Cons: "Free wifi"

Pros: "There was nothing to like. Horible experience will never fligh with Austrian Air again"
Cons: "The flight was long delayed, there was no explanation or any sort of pasenger notification about the delay. When I boarded the overhead luggage was full could not find space to secure my bags. The flight attendant was very rude did not assist me and made me wait. Other people traveling without luggage pushed me to pass by. I was told not very nice things. The flight was overbooked and overall horible experience."

Cons: "My parents were traveling, they dont speak english and I verified with Austrian airlines that they would be assisted at the gates and that they had the correct visas for each airport they had a layover in. I was assured there would be no problems. Upon boarding they were not able to get on their flight. I have never had so many communication issues and frustrations in the middle of the night with an airline. disappointed."

Cons: "Seats are very small. Plane was cramped. Snack was not very good. Need healthy options."

Pros: "There werecseats available at gate area to wabit for plane."
Cons: "Airport overcrowded, checkin at Austrian Airlines horrible - one agent quoated 117 Euro for oversize suitcase when fee was actually 50 Euro. (Note: same suitcase accepted by Lufthansa without extra charge. Security check also excessive and bureaucratic without giving sense of better safety."

Pros: "The Swiss Air staff provided water and nice sandwiches for us while we stood in line for hours and put us up in a very nice hotel for the night."
Cons: "My first flight with Austrain Airlines was 2 hours late in leaving, partly because they mixed our baggage up and had to have each of us leave the airplane to identify our baggage before getting back on again. Because of this, I missed my connecting flight in Zurich. Apparently hundreds of other passengers were in a similar situation, because I spent the next 6.5 hours standing in line to getting my new itinerary and hotel vouchers."

Cons: "The flight had delay more than 45 minutes I lost my bus connection"

Pros: "Great staff, good meals, snacks, and drinks thru the entire flight."

Cons: "Missed the connection because the flights were booked too closely together. Then had to wait 7 hours in the airport for the next flight. It only takes 4 hours to drive there but I don’t have a car."

Cons: "Chaotic boarding process, no clear communication with passengers, delays in boarding not explained, people sent away or told off, huge attitude and chip on the shoulder. In the U.S., we are customers that paid for a service and are asking for details on that service. In Europe, we are annoyances that depend on staff at the boarding gates to get on the plane, so power tripping and general disdain to customers beings confused are part of the game. I will try never to fly Austrian Airlines again. Absolutely unacceptable behavior toward families, mothers with children, senior citizens. I can almost see the smirks and annoyed and superior attitude of staff at the boarding gate when they had to deal with more passengers asking why boarding hasn't started half an hour ago when we were announced it would. No answers, just show me the passport and boarding pass, ok, please go back, we'll let you know, then ignore questions."

Cons: "My Swiss flight from Stuttgar via Zurich to JFK was cancelled before 24 hours without explaining the reason. They should explain the reason at least. I had to take an another flight and arrived at JFK after 6 hours from the original flight. My trip was totally messed up, so I was not happy at all."

Pros: "boarding/deplaning relatively quick. plenty of leg room in emergency row seat"
Cons: "only provided ONE meal on an 11 hour flight?? how is that ok? people were very hungry. when i asked about that, the disinterested flight attendants tried to convince me that they had in fact provided “two services” -they apparently think a small packet of crackers counts as dinner. shortly before landing they served a stale ham sandwich (8 hours after the only meal). Food quality was poor as well. during booking there was not an option to indicate dietary requirements either. not impressed with austrian air overall."

Pros: "Short flight, no major issues."

Pros: "Speaking of friendly sky. Great!"

Pros: "Great experience, friendly crew!"

Pros: "I fly this route on Austrian 5 times a year, and I nearly always choose Austrian because it hast the overall best 'package' - a comfortable plane with excellent sleeping seats in business class, the best airline food in the world from Do & Co, the nicest staff that really cares about your well being and the quickest connection between Bangkok and Vienna."
Cons: "The entertainment program is a bit slim, to my taste - but I'm not a big consumer of inflight movies, as I prefer to get more sleep when I fly. When compared to the entertainment program on Singapore Airlines, for example, Austrian's own can't really compete."

Pros: "Drinks were included"
Cons: "No entertainment available not even to pay for. Wifi is overpriced"

Pros: "Love the coordination"

Pros: "The seat was comfortable."
Cons: "We were advised to arrive at the gate 45 minutes before departure. We waited an hour and a half more until we boarded. The plane was late on arrival but there were no announcements. No one knew what was going on or when we would board. There was no food served whatsoever. Just beverages. There was no entertainment."

Cons: "Although AU blamed late arrival of the plane from Russia, fact is that the plane was at least one hour at the dock before boarding and the AU team was just extremely slow to get boarding done. We were all invited 45 minutes before boarding to board, when apologies were already offered for the slight delay, which turned into 1.5 hour overall. Worst is the lack of communication during the 45 minute wait, for which I have little understanding seeing many older people clearly suffering."

Pros: "Everything was great except seats uncomfortable"
Cons: "Uncomfortable seats"

Pros: "The flight attendants were beautiful"

Pros: "So I had to fly to Munich, and rather than flying direct on terrible United, I took a connecting flight via Vienna. Flight was full yet still departed on time and even arrived early. The seat was comfortable and flight went very smoothly. Food served on board was perfectly edible. Disembarking also went without problems. The flight staff even accommodated the requests of a particularly nasty Russian family seated behind me even though they were total jerks. I was very impressed with their professionalism."
Cons: "Nothing. I will make a point of trying to fly via Vienna in the future. Airport is very pleasant and well run."

Pros: "They lost my baggage and nobody cares.They charging good money for extra bags but they have only sorry for they mistake. If you plan your important trip to Europe please don't use this company,so you can avoid unpleasant experience."

Pros: "The service was good, everyone from the staff extremely friendly and overall the flight was very quick."

Pros: "Everything"

Pros: "Na"
Cons: "Initial flight was late taking off for no reason except they scheduled too many incoming flights. Made my second flight but my bag did not and had to wait over a day for it while missing a day of work."

Pros: "that everything was in order - alles in ordnung, without much fuss. short flight, no time to get dissapointments, but I did not expect some anyway."

Cons: "Boarding on return flight was utter chaos and was not controlled properly. The crew was very pleasant and , in my opinion, could not have been any bertter."

Pros: "The crew were friendly and fine. No problem with boarding etc"
Cons: "The seat comfort and closeness of the passengers is terrible. And makes for a stressful and painful flight."

Cons: "While boarding, the AC was off due to a mechanical issue. The plane was uncomfortably hot, but the pilot and flight attendants were appropriately apologetic. The issue was resolved once we took off."

Cons: "There weren't a single blanket on the whole flight"

Pros: "All"
Cons: "0"

Pros: "Flight was on time, stewardesses were kind and helpful, food was good, entertainment selections great, plenty of legroom for 6'1"/ 185cm."
Cons: "smallish baggage storage"

Pros: "seats are comfortable, boarding was fast"
Cons: "no choice of food, no entertainment"

Pros: "The crew were nice."
Cons: "Food & extremely old plane with no electrical outlets no Wi-Fi and the entertainment system was rubbish . The food was terrible. One passenger mentioned that the bathroom was in terrible shape. I actually tidied up the bathroom before I left cause my bathroom was also in terrible shape or getting there. This plane needs to be retired it is so old! United Airlines should be embarrassed! I can't believe this plane is still in circulation at least the inside of it! How about updating it to modern times?"

Pros: "The flight, service, entertainment and food were excellent"
Cons: "The boarding process was disorganized, could not tell which line to get in, waited in lines that we did not need to."

Cons: "I paid for extra leg room to sit in economy plus. My friend who paid the same price as me for our original ticket, but didn't upgrade was put in the same row at no additional cost. The seatting pricing is rigged."

Read more about Qatar Airways
COVID-19 information

Safety measures for airlines flying from Denver to Bulgaria

Airlines flying from Denver to Bulgaria have enacted additional safety measures and adjusted policies to better accommodate travelers. Policies vary by airline.

Heightened sanitation

Daily cleaning, installation of cabin HEPA filters on flights from Denver to Bulgaria

Mandatory masks

Masks required on board, masks provided on flights from Denver to Bulgaria

Social distancing seating

Middle seats unavailable to book on flights from Denver to Bulgaria

Pre-flight testing

Testing for antibodies, testing for symptoms for flights from Denver to Bulgaria

Book cheap flights from Denver to Bulgaria

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