Find cheap flights from Denver to London

DEN - LON

Find cheap flights from Denver to London

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Round-trip
Economy
Denver (DEN)
London All airports
Fri 7/30
Fri 8/6
Any month
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Good to know

Low season

AprilBest time to beat the crowds with an average 23% drop in price.

High season

JuneMost popular time to fly with an average 24% increase in price.

Average price round-trip

$651(avg. price over the last 2 weeks)

Good deal round-trip

$560or less

Good deal one-way

$277or less

When to book flights from Denver to London

Estimated round-trip price
Average price per month
Flight prices as travel date approaches

Top tips for finding a cheap flight

  • Looking for a cheap flight? 25% of our users found flights on this route for $277 or less one-way and $560 or less round-trip.
  • The cheapest flight from Denver to London was found 72 days before departure, on average.
  • Book at least 4 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 is April.
  • Morning departure is around 24% more expensive than an evening flight, on average*.
  • Denver International Airport (DEN) is one of the biggest airports in the United States, but surprisingly compact with three well-connected concourses. The airport is 25 miles away from Downtown Denver and has lots of cheap options to get to the airport, either by public transportation or by affordable taxi services.
  • Denver Airport is pet-friendly and has an on-site pet resort with suites, massages, and obedience training. Other benefits include free Wi-Fi, charging stations for your devices, nursing rooms, and prayer halls. Be sure to check out the views of the Rockies from Concourse C while you wait to board your flight.
  • A tip for a fast pass through security is to head to the pedestrian bridge across from the Westin Hotel after check-in, which you will find between the main terminal and Concourse A. Across this bridge, there are security lines both for TSA, premium, and general travelers, which tend to be more sparsely populated.
  • Although London has over six airports to choose from, most flight routes from Denver fly into London Heathrow (LHR), which is the city’s largest and busiest airport and has the largest offering of international flights. London Heathrow Airport has four terminals, so be sure to check which terminal you are flying into to best arrange the rest of your journey going forward.
  • Because Heathrow is so busy, be prepared for longer than usual wait times at border control when you land. A good rule of thumb is that it can take an hour, so be sure to factor this into your onward travel. There are currency exchange offices located in Terminal 2 and 5 if you want to change some dollars into pounds before leaving the airport.
*Average of the lowest prices shown in KAYAK’s search results for departures within the next 30 days

FAQs for booking flights from Denver to London

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Top 5 airlines serving Denver Intl to London

Scores according to KAYAK customer reviews

8.0
SWISS
Overall score based on 9,018 reviews
8.2
Boarding
7.8
Comfort
8.6
Crew
7.7
Entertainment
7.9
Food
Airline reviews

Pros: "crew"
Cons: "children entertainment"

Cons: "The seat bottom was very uncomfortable and made my bum sore the rest of the day."

Pros: "Seats were comfortable and the crew was great"

Pros: "The food was decent and on board entertainment was pretty good."
Cons: "The boarding experience was terrible. We bought new lightweight International sized carry-on bags for our family of four and packed extremely light to keep each of bags under the 8 kg weight limit for carry-on bags. The crew required us to check them anyway! So incredibly annoying."

Pros: "Swiss is Swiss"
Cons: "nothing"

Pros: "Flight was very smooth and on schedule."
Cons: "Seating in economy was very cramped (pitch felt like 77”) and food and entertainment nothing special. Somehow I had higher expectations for comfort and service, even in economy."

Pros: "I thought my out flight with Lufthansa would be good but it was surpassed by the return flight with Swiss Based on my experience I believe Swiss should be a 5 star airline as well"
Cons: "A slight delay"

Pros: "האוכל והשירות מצוינים והטייסים מצוינים"
Cons: "מקום ישיבה צפוף מידי"

Cons: "Having no entertainment in the flight"

Pros: "The crew were great and boarding went very smoothly."
Cons: "After such a smooth boarding we found we had to sit on the tarmac for an hour because of congestion at Zurich."

Pros: "Very positive experience."
Cons: "Flight was delayed because of a flight late arriving from Barcelona. Unlike an international flight...no entertainment & only a slight snack food. Still highest marks for the crew and the service that they provided"

Pros: "Service and Aircraft B777"

Pros: "Lots of room because plane was half full"
Cons: "I arrived almost early enough to get on an earlier flight. I think if I'd pleaded a bit more..."

Pros: "Both times I flew with Swiss airlines it’s been great! Food is pletntiful, staff is very kind."

Pros: "All very comfortable"
Cons: "It was delayed"

Pros: "The food wasn’t bad"
Cons: "Business seats suck"

Pros: "Food.confort.pillows."

Pros: "Good flight"

Pros: "Though our flight got delayed, we arrived almost on time."
Cons: "Because the flight was delayed, boarding seemed a bit chaotic. Everybody tried to board at the same time. The seat had technical issues - it would either recline or be upright. The crew had to spend quite a bit of time trying to figure out how to return from a flat bed to the upright position. Entertainment was re-booted 3-4 times during the flight to get it to work consistently."

Pros: "The food was the best I’ve ever had in a plane"
Cons: "Sound quality for the films was awful"

Pros: "Crew helpful. Seats comfortable. Slept most of flight."
Cons: "Didn’t bother me because sleeping but much of flight apparently the entertainment system had issues"

Pros: "Efficient check-in, boarding and on-board experience. Great seat and entertainment. Food also very decent."
Cons: "I find Swiss’ pricinh policy for on-board internet totallh ludicrous and an outright insult. Also, I sometimes appreciate a bit more empathy in the way things get announced - no announcement for security video or when they disrupt a movie with their Swiss commercial clips - they just turn it on. Not abtreat experience."

Pros: "Nice staff and inflight service. seats were great"

Pros: "Fully reliable"

Pros: "Nothing"
Cons: "Staff at the airport were great. Once you get on the plane, where the Swiss are, it was awful. I can't believe that an airline from Switzerland knows less about the customer service than Serbs."

Pros: "Flight itself was good, comfortable, staff were professional"

Pros: "Service was great, friendly and courteous crew, smooth take off and touch down, meal was the best I've had traveling. Very long tiring flight, good hospitality is always appreciated."
Cons: "There was a short delay on take off but we arrived on time. The only problem that I encountered half way into a long tiring flight, I lost the volume on the entertainment system. The stewardess tried to reset it but it didn't work. I was asked to change seats but it was too much of a hassle. Was a bit disappointed. Not there fault."

Pros: "Fastest and most thorough service I've ever received!"

Pros: "Swiss is always a tad nicer than the alternatives"

Pros: "On time"
Cons: "Engine shut down juast as the safety briefing started but all was good when it started again. A light meal would have been better than yoghurt & biscuits. Staff were very helpful."

Pros: "Swiss has amazing crew. Incredibly polite and accommodating. Their food (for economy class seat) was very good to excellent. The new Boeing 777 is also a smooth plane to ride."
Cons: "The boarding process in Zurich was a free for all. There is not a "method" to their boarding (i.e. by row or zone) so all 300 passengers crowded around the gate. We paid $100 for exit seats but the seats were barely wide enough for me...a medium built thin male. Unfortunately this appears to be the trend. Swiss would do well to have a wide economy section."

Pros: "The new aircraft"
Cons: "Lavatory wasn't clean enough"

Pros: "I had a super-short connection from Stockholm at Zurich (going to JFK), and I just assumed I'd have to be rebooted, but they held the plane for all of us! Entertainment was excellent, service was great - I really like the food, although I don't eat well on flights. Comfortable - I slept for a few hours. Really great experience (until I hit customs in JFK, but SwissAir has no influence on that :) )"

Cons: "The bar between the seats is not going up all the way"

Cons: "Everything was ok except that confusion we had while ticketing. Although we have been assigned on on carrier the flight was operated by a different one, which was not cleared in the purchase paper."

Cons: "In order to board we were requested to line up at gate according to seating group. And then had to wait there in line standing for almost 45 minutes before we were finally told we could proceed to board. No reason for lining up so far ahead of time....and had to stand....."

Cons: "They charge you an extra $ 100 DOLLARS FOR THE OPTION TO PICK YOUR SEAT AND WHEN YOU CHECK IN THEY SAY THAT IT WAS JUST TO SIT IN THAT SECTION OF THE PLANE. WE PICKED OUR SEATS BY THE FRONT BULKHEAD AND WHEN WE CHECKED IN THEY REFUSED TO GIVE US THOSE SEATS BECAUSE THEY SAID OTHER PEOPLE PAID MORE THAN US TO HAVE THEM. THEY SHOULD BE INVESTIGATED FOR THIS KIND OF FRAUDULENT ACTIVITY."

Pros: "I take the flight from ZRH to SFO several times a year. Typically on time, typically good service, food and drinks"
Cons: "The entertainment on the Airbus 340 is outdated and the screens are terrible but that is the only problem. ugh better with the new 777. Unfortunately not the case today"

Pros: "The crew did a great job of handling our 2-hour delay in starting from Zurich - we were kept updated on what was happening, the aircraft was at a comfortable temperature (not too hot, not too cold), and we were given water during the wait. Also, during the flight, the crew kept coming through with more water, which was VERY NICE! Plus, the moist towels prior to landing. It makes a big difference in comfort levels for such a long flight."
Cons: "The on-board entertainment system was old and very clumsy to handle (with the embedded control in the arm rest). Also, it crashed on me two times and had to be re-booted, which was frustrating and took a long time every time it happened."

Pros: "zurich a great airport."
Cons: "cheese roll"

Cons: "The most uncomfortable flight I've ever experienced. The seats were too small. It was torture for a 12 hour flight. Need more space and padding in the seats."

Pros: "Everthing went as planned. Left on time. Cannot complain."

Pros: "Decent food, for airline food. I didn't starve for the 8 hours, and the included beer/wine/spirits helps a lot. Entertainment system was enough to help pass the time. This flight had USB chargers...had I known, I would have loaded up my mobile with watchable entertainment."
Cons: "It's still a cattle car for coach travel. Boarding was hectic. Called all passengers at once, which resulted in a crowd pushing to get through the two checkpoints all at once."

Pros: "The food and service was wonderful."
Cons: "I was disappointed that there was no plug-ins to charge electronics."

Pros: "Newer plane"
Cons: "I have been flying to Asia on Asian airlines and maybe I have become accustomed to flights and crews that know how to manage a long flight. For example: The crew seemed tentative and untrained. Saw the crew once between the meal at beginning and the meal at the end. I wonder where they can hide for so long on a small plane? Too many announcements by the Captain -- shut up and fly the damn plane! Do you think the crew might replenish the toilet paper on an 8 hour flight? on another note: Seat spacing is adjustable - very close seats Overall--- underwhelmed"

Pros: "Boarding, friendly crew"
Cons: "No tv, but short fligh anyways"

Pros: "on time flight; friendly staff"
Cons: "a little warm before takeoff; I did online check-in and I did not get the SMS with the link to download boarding pass; tried twice and didn't work; I've got in on email as luckily I had access to an wifi"

Pros: "The extra level of Swiss security at the gate. The highly professional cabin crew. The inflight food service was well above the norm. The demeanor of the flight deck crew was exceptional. I'm going to try and fly Swiss whenever possible now."

Pros: "the food was good and i like not having to deal with private screening from tablets."
Cons: "The space between rows are uncomfortably narrow (and I am a short person). It also does not help when the attendants would not want to disturb a sleeping but have no problem allowing us to eat off a tray with our forehead touching the back of the seat in front. This happened to me on the entire journey on Swiss from Miami to Zurich to Cape Town. It is almost a health hazard not being able to move and forget about trying to even use a laptop because when the person in front recline her seat, you have no room to even type (and my laptop was only a 13 inch Mac.) I am a million miler on United and this is one of the most miserable flights that I have taken. I also don't like the fact that we cannot get seat assignments until 23 hours before departure- not even for preferred travelers."

Pros: "Great service and comfortable ride excellent staff"
Cons: "Cannot expect better service"

Pros: "Entertainment and helpful staff"
Cons: "Had worst seat on plane on outward because I didn't know I could pick a seat free of charge before online checkin This could be a lack of communication on Kayak/Last Minute.com as opposed to Virgin"

Pros: "Most of it was of a reasonable standard."
Cons: "Plane was full"

Pros: "The crew where awesome and catered to every need and requirement."
Cons: "need to have a slightly deeper seat pitch in premium economy to allow people out without having to wake each other up. Especially on night flights."

Cons: "Nothing"

Pros: "The crew was maybe average, that was still the best point."
Cons: "Extremely tight space. The food was almost inedible. Awful."

Pros: "The crew were very attentive, they tried hard to help me with comfort, drinks etc. I didnt have food as it was so good in the Virgin Clubhouse!"
Cons: "The bed! When you flip it flat its rock hard, and the matress they provide is useless! Need foam matress to really make it more comfotable. If the seat reclined another few inches i wouldnt bother flipping it."

Pros: "I like the professional approach of the airline and the staff. Seats are really comfortable and i did not need my sleeping pillow at all as the headrest of my seat was already so comfortable."
Cons: "There is not much which i did not like about this airline. Just like other airlines, now have started feeling that Economy class travellers are being approached with bit biased approach in hospitality though they have major contribution in meeting flight running expenses. All airlines should start considering this fact and improve the overall approach."

Pros: "The airplane was quiet My seat did not recline, but was seated in a different place where the seat reclined Bathrooms were clean and plenty"
Cons: "The remote controls for the entertainment system That you can’t reach the vents when you have to be buckled"

Pros: "A smoothtrip run by great staff."
Cons: "Thé food was rather stodgy overall."

Pros: "Top glass airline"
Cons: "I lake food and good service crew"

Pros: "Although we were badly delayed the cabin service was excellent in every way. Good meal , cheerful staff and well turned out."

Cons: "I did not like the fact that my seat was between 2 small children that belonged to a family sitting behind me .It was ridiculous to put a stranger on a 10 hour flight with a 3yrar old on one side and a 5 year old on the other"

Pros: "Staff on this flight were excellent"

Cons: "The plane seemed to be a little bit old, especially entertaining equipment"

Pros: "Overall comfortable journey"
Cons: "No option to book food option 24 hours before as could check in could not been done earlier than 24 hours before flight. I logged exactly 24 hrs before filled in details which took a few minutes by that time said too late to book special meal."

Cons: "It was terribly late. No one had a clue on when flight would depart."

Pros: "The entertainment selection was good, though I didn't need to see the blurb about having vloggers available before every movie. One of the very few airlines to use boarding by rows, which speeds up the boarding process."
Cons: "The legroom is very cramped, pretty difficult to eat your meal with the seat in front reclined. The crew were not very attentive: they completely missed me while I was waving the rubbish on their collection rounds. In the end I had to dump it myself in the toilet bins. The PA system is too loud compared to the rest of the entertainment, had to remove the headphones for each one of them."

Pros: "Check in was very smooth with very friendly staff. On board crew was very welcoming and service was excellent."
Cons: "Aircraft configuration of the 787-9 was very poor with 9 seats abreast making the seats very cramped and very poor leg room."

Pros: "Even it was a 12-13hrs flight, I had been my best flight ever in a long flight. Virgin really exeeced my expectations."

Cons: "given milk yoghurt with VGML breakfast"

Pros: "Efficient, friendly, on-time!"

Pros: "Seat is very comfortable"

Pros: "From the check in to the service on board was very good. Staff were polite and respectful."
Cons: "The food was small. There did not serve bread with the meal"

Pros: "I liked that the boarding went really fast and the staff at the JFK airport was super nice and helpful."
Cons: "I didn't like how rude the airplane crew was and how useless and unhappy they were. The sits were very uncomfortable and the food didn't have any taste."

Pros: "Everything!"

Cons: "One toilet not working"

Pros: "Nothing because I was given a middle seat"
Cons: "6'4 and I get a middle seat.."

Pros: "Food"
Cons: "Seat reclining happens even during meal time and landing! I had to ask crew to get passenger in front to put seat back upright during meal time!!! Crew should've noticed themselves and ask the passenger without my prompting!! So annoyed!! I complained to VA too"

Pros: "The food was surprisingly ok and the seats in PE were comfortable, plus there were two USB ports, perfect!"
Cons: "Being woken up to be asked if I wanted to eat, twice! If I wanted to eat, I wouldn't have a sleeping mask on my face, or be asleep! Plus, upper class and premium economy didn't board first."

Pros: "They were were very kind and helpful to all passengers"

Pros: "Genuinely pleasant cabin crew, good service, good food."
Cons: "Virgin Upper Class seats are cramped, with very limited stowage space. Turning the seat into a lay flat bed (and returning it seat at the end of the flight) takes some effort--not the simplest of processes. I'm not tall, but my feet protruded into the aisle so I was being disturbed whilst sleeping. Seat is also quite narrow--feels quite claustrophobic when sleeping."

Pros: "Still a more pleasant experience than BA but others have overtaken. Crew make a difference though."
Cons: "Limo service wasn't great in China - asked for address of hotel - a major international chain and confusion on booking details"

Pros: "New Dreamliner aircraft was very comfortable with loads of leg room for a tall person like myself at 1.76m"
Cons: "My seat was directly under the aircon and it was blowing very cold all night which made it quite uncomfortable. Fortunately I had an extra blanket which I could wrap over my head."

Pros: "The boarding and the overall flight experience was quite good."
Cons: "There were movie options such as Sully and Deepwater Horizon, which I think are unsuitable for flights. Overall, the movie options could have had more variety."

Pros: "Smiling and helpful staff Great FREE food and drinks good movies Free goodie bag of travel goods, blanket, pillow etc Free candy for landing descent"
Cons: "Leg room is a little tight"

Pros: "The crew,food and entertainment the food has improved, the ground and flight staffs was very pleasant and helpful"
Cons: "We were flying to Miami, then into a cruise,weighs restrictions,we were find a100 dollars for a couple more kg, we were on holiday for nearly three weeks"

Cons: "Crew"

Pros: "The crew left my breakfast in the sear next to me because I was asleep (unfortunately i didn't notice till I started to disembark...)"
Cons: "I couldn't get comfortable enough to sleep very well, even though I was in a window seat (which I can normally lean on)."

Pros: "Everything except the plane itself"
Cons: "Plane cramped"

Pros: "Mostly everything was fine."
Cons: "Not really anything particularly that I didn't like."

Pros: "I loved wine and whiskey. Blanket and blindfolds, headphones helped me sleep. Care packet with toothbrush came in handy."
Cons: "The Sears were tight and thin. I felt pushes from behind. I could not recline the seat enough. I didn't get a window seat, which is my favorite."

Pros: "We were late arriving at the airport and the checkin desk people were SO nice putting us through. Otherwise we never would have made it on the flight. Also the extra legroom seats were well worth it!"
Cons: "Nothing!"

Pros: "Staff excellent - Inflight screen useful."
Cons: "Could not do online Check in - apparently as there were 4 separate legs on my Ticket."

Pros: "At JFK the lounge and service was the best I have encountered."

Pros: "Everything on-board was awesome...Great job guys!!!"

Pros: "nothing"
Cons: "My ticket was cancelled at the time I was standing in front of the airline counter to check my bag. I was so furious. The airline did not help me at ALL. In fact, they offer me to buy a brand new ticket at a new price!!!!!! I ended up re-bought the ticket from United airline as my husband has United card (chase) and we ended up paying over 1900 for the ticket that should have been about $911. The priceline number is not helping. I have trip insurance but no. nothing worked. I will never fly Virgin Atlantic again."

Cons: "My luggage didn't arrive at my destination until 2 days after I did. And after I checked my luggage, a leather satchel was stolen from my suitcase. I reported the theft to Virgin Atlantic and requested a report nearly a week ago and have heard nothing back. I am usually careful about packing luggage, and did not think the leather satchel would attract a thief working for the airline, but I will not make that mistake again! DO NOT TRUST VIRGIN TO HANDLE LUGGAGE."

Pros: "Pleasant crew, quick boarding."
Cons: "Late departure, late arrival due to a plane at our gate. Very poor quality media systems, cramped, inconsiderate passenger next to me taking up more room than necessary. Cramped."

Cons: "Layout of seats is not very social when traveling with partner in business class."

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: "Dinner was great"

Pros: "Crew was amazing"
Cons: "Food could have been better, seat was uncomfortable."

Pros: "Good"

Pros: "Crew, food, flight."
Cons: "Could always use a wider seat. I just hate having my hips touching a stranger for the whole trip."

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."

Cons: "Plane was late taking off. Crew did not provide water when requested. They were busy with beverages that they could sell at a cost."

Cons: "Wonderful"

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

Pros: "Comfort + was nice."
Cons: "Had a middle seat between two other men. I was given my seat by the gate. It would have been nice if they placed my more strategically. That might be asking too much but seems reasonable."

Pros: "Lisa @ the Boston Delta check-in counter is AMAZING! She's super helpful and essentially saved our vacation! Her coworkers say she's the best and I couldn't agree more! Delta is very lucky to have someone like Lisa on their team!"
Cons: "Nothing to complain about! If I really head to be picky maybe the in-flight meals were smaller than I expected. But again, nothing that bothered me"

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"

Cons: "The seats were in bad condition, I was surprised as Delta usually has well cared for interior and exterior airplanes."

Cons: "Noise in cabin unable to sleep"

Pros: "The flight attendants were all helpful and pleasant. The seats were comfortable. We were provided with plenty of liquids."
Cons: "The landing was pretty tough and we took off almost a half hour late."

Pros: "Check in Denver super helpful Gate staff hustled to turn around flight Flight crew excellent"
Cons: "Flight delayed, almost missed international connections"

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: "The staff was polite and snacks were good (healthy options)."
Cons: "Nothing was terrible, but due to the short flights I assume they don’t worry about having planes with entertainment available."

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

Pros: "Good flight crew"
Cons: "Delayed due to mechanical issues. For 3 hours. No offers for free drink or wi fi. When we finally land we were on the runway for half hour."

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: "The staff"
Cons: "Nothing"

Pros: "Nothing!"
Cons: "Everything"

Pros: "Delta is great"

Cons: "Poor Delta DEN counter agent experience. Name on ticket didnt match Delta profile name nor TSA [rofile name. Delta counter agent would do nothing, except blame TSA. Would not check ticket name vs profile name. Happened two consecutive flights. Flight tomorrow morning has no TSA Pre clearance on boarding pass. This will be three consecutive flights. Also seated me next to a person who needed 2 seats to himself. Please never seat me next to a passenger who cannot fit in their own seat. I am switching to SWA."

Pros: "Quick and easy boarding. Quick flight"
Cons: "Audio entertainment quite limited"

Pros: "Food good, wine OK"
Cons: "Discomfort bad"

Pros: "Space looked a bit cramped in business class but I was pleasantly surprised at the length of the flat bed and the additional foot well space once I'd reclined the seat."
Cons: "Need to fix the flickering lights in the JFK club lounge, the opposite of relaxing!"

Cons: "Price to get a little more space"

Pros: "Crew was nice."
Cons: "The Entertainment sucked. Again I was sitting in comfort class which in theory should buy you more comfort and better entertainment. There was a ton of movies from the 90s and the same movie selection from about 6 months ago when I traveled with them. Also, what is going on, with having to use your own cell phone to watch movies on the plane? Whatever happened to the screens in the backseat of the front seat? I ended up with neck pain from trying to watch a movie on my phone. Delta has become very cheap. It is going into some serious decline."

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

Pros: "More seat room than expected for economy tickets. Good service, on time, polite staff"
Cons: "Duty free purchases not waiting for us at boarding like usual. Audio selection on entertainment was v poor"

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: "Crew were good, flight on time, free drinks"
Cons: "Nothing"

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

Pros: "Boarding super excellent! Also: Best landing I've ever experienced! Props to the pilot!!"

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

Pros: "Thomas our steward was excellent."

Pros: "Friendly Staff"
Cons: "Check in was very hectic due to limited staff and getting bumped by the red carpet flyers. Boarding is always a little congested due to the lines. Better snacks please!!"

Pros: "Great,I loved it!"

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

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

Cons: "The food was supposed to be hot chicken was served cold"

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

Pros: "Entertainment options"

Cons: "It was Delta not Virgin"

Cons: "Better boarding and entertainment"

Pros: "The aircraft was barely half full."
Cons: "Delay due to fog at LHR, but this is not the fault of the airline"

Pros: "Flight departed on time. Crew were friendly and efficient"
Cons: "Boarding seem to be chaotic, no boarding by group or seat number."

Pros: "-"
Cons: "Will never use Lufthansa again"

Pros: "As previously stated hated having to go through security again"
Cons: "Chocolate"

Cons: "Well,my whole trip was an adventure! Problem with my checked in bag, so i had to pay 22 pounds extra to fit it in a connection flight and now i have to send receipt to get the refund. On my way back, there was a delay, so i missed the flight and the checked in bag"

Pros: "The crew was friendly. The seating was ok but dirty floors"

Pros: "Very Organised and punctual"

Pros: "Everything except delay"
Cons: "Nil"

Pros: "Nothing"
Cons: "Everything"

Pros: "It was not immediately apparent that boarding was in a completely different terminal which was accessible by train, so this lack of info could have cost me arriving in good time as I thought I had sufficient time. I aldo found ground staff at the customer service desk very unsympathetic and unhelpful when I asked for assistance on grounds of ill health. They were quite condescending ."
Cons: "Ground staff poor customer service"

Cons: "Everything"

Pros: "Very friendly crew, great seats in economy with lots of legroom."

Pros: "Evrything"
Cons: "Nothing"

Pros: "The flight was adequate."
Cons: "Sandwich was extremely unappetising and there were no hot drinks. The worst thing was that in transiting from the SAA flight to the Lufthansa flight we were obliged to go through security which seems unnecessary. The security staff were awful. Bullying, rude and totally unsympathetic to the fact that having brought water from the first plane to the second plane we had to either drink it or throw it away. One guy in particular, a tall greying man evoked the worst stereotypes of brutal secret policemen. Perhaps he formerly worked for Stasi or he was having testosterone problems. Totally unacceptable behaviour."

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

Pros: "Great"
Cons: "No problems"

Cons: "1hr 20 minutes late"

Pros: "great over all experiance. Don't let the other negative reviews put you off"

Pros: "The Lufthansa app provides updates on plane status and gate number, etc."
Cons: "N/a"

Pros: "All"
Cons: "Nothing"

Pros: "Did manage to get priority transfer which I requested from Dubrovnik but was told. “We do not do those”"
Cons: "Rest of the flight was bearable nothing write about. Typical cheap alow cost flight"

Pros: "Ok"

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

Pros: "See above"

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: "The crew was wonderful and this is consistent with my previous experiences with Lufthansa. The salami sandwich provided was actually very good."
Cons: "The slimline seats were not very comfortable. I would hesitate to fly Lufthansa's narrow bodies for flights greater than 2 hours."

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

Pros: "The staff were all super helpful and friendly! Pleasure to fly with!"

Cons: "4/4 flights with involuntary stop-overs were delayed, causing 4 panics and 2 missed flights. Given their proclivity for busing passengers to distant planes in Herman efforts, a 50-minute allowance for changing planes, when added to the frequent Kate departures, is just not sufficient. They should acknowledge it and sell only flights that allow for 80-90 minutes in the airports that are so woefully managed (eg, Frankfurt and Munich). It’s back to BA for me!"

Pros: "All the staff were friendly and the complimentary food and drink snacks was lovely."
Cons: "Our flights were delayed both on the way there and back"

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

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

Pros: "DID NOT LIKE MY LUGGAGE GOING MISSING! IT'S STILL MISSING AND, AFTER RECEIVING PROMISES OF DELIVERY TODAY, THERE IS NOW NO RECORD OF MY LUGGAGE!"
Cons: "DID NOT LIKE MY LUGGAGE GOING MISSING. IT'S STILL MISSING AND, AFTER RECEIVING PROMISES OF DELIVERY TODAY, THERE IS NOW NO RECORD OF MY LUGGAGE!"

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

Pros: "The seats and space was ok. Exit from the plane was directly opposite the passport machines and the exit."
Cons: "The flight was very late leaving meaning I arrived in London over an hour late! With knock on problems!"

Pros: "Usual good service for economy class on this airline"

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

Cons: "Refusal to board as our flight was a few minutes landing"

Cons: "None of the flights arrived on schedule. That caused other problems. Overall the trip was terrible. Not sure if I will fly lufthansa again nor recommen."

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: "Darned site more comfortable than the first leg of the journey."
Cons: "Tell your passengers they need hiking boots to get from main concourse to B terminal!"

Pros: "the crew are exellent"

Pros: "Staff was very friendly and caring."
Cons: "No entertainment and half sandwich with some cookies was the only food we got."

Cons: "N/A"

Pros: "Nothing"
Cons: "Delay"

Pros: "Lufthansa certainly stands out above ALL American carriers"

Pros: "We got there"
Cons: "Had to get a replacement plane when the first one had issues."

Pros: "Everything"

Cons: "lastminute.com was completely unhelpful in assisting with any changes to my itinerary. They repeatedly provided me with incorrect information that sent me on a wild goose chase."

Cons: "Boarding tool a long time and late take off"

Pros: "Stewards dis perfect job"

Cons: "Everything"

Pros: "Everything about the United Airlines portion of the trip was terrific: lots of food & drinks; good entertainment system; good seats even in economy. United really stepped up their game."
Cons: "The seats on the Austria Airlines portion of the trip were very close together & very minimally structured (little padding, depth etc.)"

Cons: "40 minutes waiting clearance for boarding and then for departure, for a flight 45 minutes in duration..."

Pros: "In flight crew worked hard"
Cons: "No lines for boarding - it was a mess And randomly we were asked to check in our bags though Austrian crew had earlier tagged them for carry on"

Pros: "The hotel was nice although I was unable to sleep due to the delays all around concerning my connecting flight. I am thoroughly upset because I contacted the airlines 3 times in May to express my concern with the 30mins layover. And to no avail. My worst concerns are being played out now. It appears that their isn’t any concern from the airlines about this catastrophe impacting so many people. Shame on you."
Cons: "The connecting flight departed before the first flight landed. Then I was given the wrong information of gate departure by airport personnel. After running like crazy to find this gate for departure, the plane had already departed before we even landed. There wasn’t anyone around to help, and finally I found an airport worker who gave me the same incorrect information. She was as perplexed as was I. Finally, she directed me to the information booth where I was booked in a flight the next day. The food voucher was insufficient to cover dinner, i had to pay out of my pocket but I was frugal given the financial situation. The taxi service personnel were rude and it took a long time to taxi me to the hotel where I am unable to sleep because I have an early morning g departure. All in all, between the airport delays getting me to the hotel, lack of proper food and treatment by personnel, I am exhausted and lost sleep in the process."

Pros: "Good"

Pros: "Great to be able to check in bags at the CAT railway station in the morning. Cabin crew were excellent- very friendly and helpful and did two drinks services. Austrian’s cabin crew sets them apart on European routes."

Cons: "Food"

Cons: "Menu was poor"

Pros: "Not much."
Cons: "Baggage fees and unclear policy during booking with Kayak."

Pros: "Flight was on time and we arrived on time Service was good and the crew was courteous and friendly"
Cons: "long layover before my next flight to Chicago"

Pros: "I get Airpoints with the flight, crew were lovely."
Cons: "Flight was overbooked, so a few delays (as they were asking if anyone would layover to release a seat) and they were being very strict on the one bag per traveller, but that’s fair enough considering it was busy."

Pros: "This is always a pleasant airline to travel with."
Cons: "I felt like the airlines deliberately cheated me. I purchased a flight that was listed as "economy" , which means I am authorized one suitcase. When I got to checkout they said I had pay for the suitcase. Turns out my flight was economy 'light' flight and I had to go the Austrian airlines desk and pay euro 40 for my suitcase. Wish that would have been clear when I purchased the ticket. Also there is no clear info on what the cost is for your bag at what point in the check-in process."

Cons: "Caótica boarding Uncomfortable seats did not recline"

Cons: "Let some people pass first even though they arrived after us and we al had same tickets (or gave preference for no apparent reason), I did tell thecgate agent and he apologized"

Pros: "We had a very tight connection but there was no problem. With only 30 minutes between arrival and departure our checked bags still made the flight."
Cons: "Poor announcements"

Pros: "Not a long run."
Cons: "Seats too too tight. Uncomfortably tight."

Pros: "The flight was comfortable and very timely."
Cons: "Very little leg room."

Pros: "Flight attendants were extremely friendly and considerate of passenger needs. In flight Wi-Fi is free in economy. Good leg space between the rows. Overall it's rare to find such good service now a days."

Cons: "While going to the gate G11 at Vienna airprt, i slipped infront of the gate in presence of 3 male austrian airways staff who were checking there. After i got up i requested if i could get some water and they said they cannot. Finally a co passenger gave me her bottle of water. I ended up actually breaking my leg"

Pros: "Flt was great - service was great"

Pros: "Not much"
Cons: "Lateness and virtually no food at lunchtime"

Pros: "The flight was nowhere near full, which was terrific. The crew were excellent, polite and attentive. Everything was on time."
Cons: "I don't remember anything about the food."

Pros: "crew"

Cons: "Complete lack of information and abrupt staff when flight was delayed"

Cons: "When I was boarding all representatives was very unfriendly and I would say they were rude."

Pros: "Great staff, friendly and helpful."

Pros: "got to my destination on time."
Cons: "uncomfortable chairs. zero entertainment for a non EU flight (over 3 hours), missed the meal, nothing was offered...."

Cons: "As I was flying from London Heathrow back to Vienna, I had a carry-on that was allowed on my flight with Austrian from Vienna to London. My carry-on weighed 8 kg, like is required by the rules. While boarding my flight, the woman at the counter told me my bag had to be checked because there were too many carry-ons on the flight. I asked her that I keep my bag because I had medication in there, and she didn't listen to me at all. She just kept repeating that i have to check my bag, and then took my bag from me and gave it to the baggage crew there. I didn't want to make a huge scene because the flight is only 2 hours and I hoped i Could deal without my medication during that time, but I found it incredibly, incredibly rude and awful to not listen to a passenger."

Pros: "Pleasant flight crews on all flights."
Cons: "Cramped seating in coach."

Pros: "The flight was on time, and the attendents on Austrian engaging and charming crew"
Cons: "nothing in particular"

Pros: "We paid extra for extra leg room. Exit row. Well worth Cabin crew very good and friendly"
Cons: "Connecting flight on United. Horrible experience Chicago to Vegas.seats are small, feeling of claustiphobia, nothing free on entertainment. Only interested in adding to price of ticket. Very warm A/c didn't work well. Totally bad experience on United. Never want to fly on them again"

Pros: "Service was spectacular. The United crew was awesome."

Pros: "Everything seemed all right"

Pros: "The meal and drink service was quite good. The stewards/stewardesses were very attentive and kind."
Cons: "There is not enough leg room. There is even less room if the person in front of one's seat has the seat reclined. The seats barely recline at all, so sleep is impossible. Sleep would be possible if there were enough room to rest one's head on the tray in front of the seat. This is impossible if the person in front of one's seat has reclined his or her seat. Thus, sleep is totally impossible on this aircraft. The sinks in the bathrooms also need to be deeper and need to drain more quickly."

Pros: "Great service except Vienna airport is too chaotic and baggage wrapping cost 12 euros per piece."

Cons: "Seats in economy class were crammed with next to no leg room"

Pros: "The only positive aspect about this experience was the crew on board the plane. They were pleasant and efficient."
Cons: "The true cost of this ticket was extremely poorly communicated. The baggage policy was not clear when I purchased my ticket, and I was charged an additional 30 Euros upon boarding to check a bag that met the carry-on size requirements (I had looked this up ahead of time), but because it was in addition to my purse (which fit under the seat), I was forced to pay to check it. Had I been aware that this ticket only permitted a purse-sized carry-on when purchasing the ticket, I would have selected a different ticket/carrier entirely. What was even more confusing was that I had flown on a similar ticket from London to Vienna, and didn't have any issue bringing a carry-on and a purse, so of course I was surprised when they told me I had to pay an additional 30Euro for the same two bags! When I tried to explain this to the agent, she argued with me and was very unhelpful. Overall, a very negative experience on Austrian Air. I will not be returning."

Pros: "Exiting the aircraft."
Cons: "United did not honour the seat assignment that Airfare.com gave me so I sat in a middle seat. But the entire seating plan on United is so bad it should be a violation of the anti torture convention."

Pros: "Crew was somewhat attentive. Requested Kosher food that was adequate"

Pros: "It was cheap and easy to book"
Cons: "Not being able to check in online, was not able to reserve seat. Even at luggage check in the flight attendants did not allow me to reserve a seat."

Pros: "Nice flight..friendly staff, tasty food, and on time arrivals."
Cons: "I did not like vendors at the Vienna airport charging me 2 dollars U.S. for 1 Euro. When checking the exchange rates the next day it was $1.15 per Euro.. I feel taken advantage of paying $44.00 U.S. for a snack that was 22 Euros. It happened again with another vendor there..$6.00 for a 3 Euro small bottle of water."

Pros: "Friendly crews, good coffee"
Cons: "Food is bad, and the reading light doesn't work. Limited selection of movies and tv shows"

Pros: "Great plane good price for plane ticket."

Pros: "movie selection was good. sound was surprisingly good too. crew was efficient and friendly enough."
Cons: "my seat wouldn't stay back. pretty annoying on a red eye."

Pros: "The staff were kind"
Cons: "The seat was worn down and very uncomfortable. The screen was super tiny and terrible quality. Everything was caked in old dirt"

Pros: "crew helpful"
Cons: "1. Boarding gate changed 3 times..... poor advertising regarding the last change 2. food poor 3. entertainment non-existent"

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COVID-19 information

Safety measures for airlines flying from Denver to London

Airlines flying from Denver to London 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 London

Mandatory masks

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

Social distancing seating

Middle seats unavailable to book on flights from Denver to London

Pre-flight testing

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

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