Daily cleaning, installation of cabin HEPA filters on flights from Boise to Bulgaria
Most visitors from Boise will not be allowed to enter Bulgaria. Restrictions in going to Bulgaria depend on the color zone of the country where the travelers are arriving from.
Travelers arriving from GREEN COUNTRIES may opt to quarantine for 10 days in lieu of presenting a valid EU Digital COVID-19 Certificate (EU DCC) or any document containing the same data as EU DCC. The quarantine may be revoked by providing via e-mail a negative result of a PCR test for the detection of COVID-19 carried out within 24 hours of entry into the country or by a rapid antigen test.
Travelers arriving from ORANGE COUNTRIES are required to present a valid EU Digital COVID-19 Certificate (EU DCC) or any document containing the same data as EU DCC.Travelers coming from the "RED COUNTRIES" are allowed to enter Bulgaria provided that they are Bulgarian citizens, long term residents or permanent residents of Bulgaria, EU/EEA and Swiss Confederation citizens and family members of EU/EEA and Swiss Confederation citizens.
Read more about travel restrictions for Bulgaria
Visitors from Boise will need to quarantine for 10 days upon entering Bulgaria.
Visitors from Boise must present a negative RT-PCR (NAAT) test taken 72 hours before departing to Bulgaria.
Health Declaration Form
Masks: Required in enclosed environments and public transportation.
KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights to Bulgaria.
KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Bulgaria is likely to change within 7 days, so travelers know whether to wait or book now.
Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Bulgaria with an airline and back with another airline.
Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Bulgaria up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.
Scores according to KAYAK customer reviews
Cons: "Qatar airways changed the flight time which made the layover 8 hours instead of 3 hours. For the inconvenient it was caused Qatar airways made no effort to compensate."
Pros: "I had a cheap ticket and expected much less, but food was great, crew was creat, boarding was easy."
Cons: "The boarding was on small plane parked far away from the terminal and we had such a long bus ride I started to think "what is going on"..."
Pros: "Decent seats. Good amenities for a long flight - entertainment, pack with toothbrush/mask/earplugs/socks."
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."
Pros: "The 1-hour complimentary wifi."
Cons: "Hope they had the immigration/arrival card on the airplane."
Pros: "The food and entertainment"
Pros: "The crew was super amazing and went to all extent to make our journey with infant comfortable"
Pros: "Uneventful flight. Baby in next row only cried intermittently"
Cons: "Please place crying babies in a sound-proof compartment"
Pros: "The service as usual on Qatar is excellent"
Cons: "2-2-2 setup is old style for business class and while the seats were nice it means either you are stuck by the window or need to move to let others out in the aisle"
Pros: "The crew was very nice, courteous and helpful"
Cons: "The seats did not have enough leg space, very cramped. You had bigger, comfortable planes on flight from Doha To Washington DC in 2011."
Pros: "Crew was not this great on my Flight from Doha to IAD. My pre ordered food was not given on time and they missed it. I was given cold food. The flight attendant ignored to offer Drinks and they didn't give the Custom Forms too. I have to ask everything and THE overall service was awful"
Cons: "Flight attendants should care the passengers and provide the best service. Otherwise there is no use paying expensive flight tickets and travelling on Qatar"
Cons: "The flight is too long"
Pros: "The food and crew were great"
Cons: "Older plane the tv panels were faded"
Pros: "Attentive crew, good menu"
Cons: "Providing in-ear noise-canceling headphones instead of the typical around ear noise-canceling headphones"
Pros: "The airline was helpful even though the flight was delayed"
Pros: "comfortable seats, pretty good food, extremely gracious cabin crew."
Cons: "Lactose-free breakfast option was fish... I get that some people like fish for breakfast, but to me it was a little nauseating. Just ate around it and was fine though. Overhead air vents could be improved. felt a little plane-sick toward the end of the flight."
Pros: "Flight was 80% empty, but it was amazing anyway, slept through most of it"
Cons: "Staff constantly woke me up for snacks and drinks, which is good on one hand but I was sleeping so deep that it was a bit annoying."
Pros: "Own entertainment device"
Cons: "No snacks"
Pros: "Customer service"
Pros: "Good entertainment."
Cons: "Very cramped seating."
Pros: "The crew was friendly and helpful. And the food choices were good."
Pros: "Food crew and entertainment were all good thanks"
Cons: "A child behind me kept kicking the back of the seat all the time and the mother did nothing about it"
Cons: "I was put on another flight eight hours later even though I had already checked in. I actually traveled with Cathay Pacific."
Cons: "Haven't made it yet due to schedule change. 12 hour wait in airport."
Pros: "I was surprised with the quality of gluten free meals served for me, it was well organised and taken care of where I never had to wait. My flight schedules were changed few days before departure by Qatar Airways, but only thing I had to do was to confirm that I have noted, my seats and all the rest of details intact, excellent."
Cons: "The change of my flight schedule for the entire journey was done without giving me any options (departure flights from origin and return). It would have caused me inconvenience if the change of time does not allow me to adjust my plans."
Pros: "Cabin was very nice with modern equipment and food and refreshments were provided frequently. Entertainment options were great too. Cabin crew were very pleasant."
Cons: "Connecting flight from Philadelphia to Doha was delayed by 5 hours due to some technical errors. By the time we arrived in Doha, there were no more planes heading to Manila. We did get booked a free night's stay in a hotel in Doha along with transport to the airport"
Cons: "My flight was delayed almksr 3 hours...nothing more. It's very frustrating because the problem could have been avoided if they were more careful but oh well. I'm making this review very short compared to my others because I know that if I start on a rant, I won't stop. Trust me, I'll safe that for the phone call complaint I'll be making in a few hours..."
Cons: "Out dated inflight entertainment system"
Cons: "Seats are way uncomfortable and small"
Pros: "I like everything about the flight"
Cons: "Everything was ok"
Pros: "Late night flight and new cabin design was great. Crew was friendly and quick to respond to requests."
Cons: "Entertainment options need to be expanded. Mouthwash should be added in toilet."
Cons: "Poor service, didn't get to sit with rest of our party, food average, overbooked flight, no room for luggage storage."
Pros: "The flight left without me! Nobody called my name or came to find me while I was in the lounge!"
Cons: "The flight left without me! Nobody called my name or came to find me while I was in the lounge!"
Pros: "I liked the organized boarding prosecution, everyone was seated by the boarding zone so there were no mess and no fight over who gets to go first in the plane. the food was good too, again vegetarian options and very good quality. I"
Pros: "Stuardess verry nice, exceptional"
Pros: "Everyone on duty!!"
Pros: "The personnel were at the CAI Airport and in the plae were just wonderful. I hope i will have the same experience the second leg if the trip from DOH to DFW"
Pros: "Nice flight attendants, frequent fluid services."
Cons: "There was no Wifi in the plane."
Pros: "Qatar airlines was awesome! Comfy seat, great headrest, lots of entertainment options and decent food all on a very short flight. Would definitely fly this airline again!"
Pros: "Qatar is not glitzy. Better than that, it was straightforward and relaxed and comfortable. Crew was pleasant and helpful."
Pros: "I was the third person in the line. The ticket agent couldn't find my ticket as multiple tickets were booked on my name and all tickets showed X mark. After 20-30 minutes of wait, I finally got my ticket but the security and custom lines were very long by that time. Never flying Qatar again."
Cons: "Just the entertainment. Movies could be slightly better not a critic just a suggestion"
Cons: "50 min. delay for absolutely nothing. No proper gate available. Only one bus had to serve all passengers from terminal to aircraft. Lufthansa should not operate as a budget airline."
Cons: "Poor customer service, was booked off twice without being informed."
Pros: "Friendly crew"
Cons: "The proximity of the arriving and departing gates"
Cons: "Nothing to add?"
Cons: "Flight was canceled from Newark to Monachium then coming back plane from Krakow was late and I had to spend night in Monacoum . I arrived to Newark on Tuesday instead of Monday horrible trip all together ☹️"
Cons: "Nothing to note"
Pros: "The crew here was Much, much friendlier! They were smiling, joking, and happy. The stewardess even directed me to a free isle seat so I wouldn't have to sit in the middle where it was a bit more cramped. I wish my first experience with Lufthansa; they could have had a loyal customer since I will ve flying to Bulgaria 2 times a year in the next 6 years."
Cons: "The bus to get to the plane was very cramped."
Pros: "Lounge was very clean"
Cons: "In a 10 hours flight Frankfurt to Atlanta only one main meal. Service was rushed job. My seat wasn’t working and Tv remote didn’t work."
Pros: "Helpfun plane crew"
Cons: "Flight got delayed. We got put ln differnt flight thru san Francisco. Another flight got delayed. When we got transfer no one told us we have only bearly 1 h to catch the next place to Germany. They assured us we will make it twice. We missrf the plane to Germany over 30 min. San Francisco airport horrible. No one gave us any information. They didnt know wfere is what. No one helped us."
Pros: "It’s always a pleasure, easy and organized to fly with you. I have been using Lufthansa for the last 3 years, every time I must fly because of the quality of service and of its crew."
Pros: "Seats, crew"
Pros: "Friendly staff.. Good food and as we had emergency exit seats there was plenty of leg room. Unfortunately no entertainment was offered on this flight."
Cons: "No entertainment. Plane was cold."
Cons: "Boarding was a free for all. My seat was near the front of the plane but the crew directed me to enter at the back of the plane. There were people entering from both the front and the back, meaning people were stuck trying to get past each other in the tight aisle. It was difficult to find space in the overhead compartments for carryon luggage due to people bringing too much stuff - the crew should have stepped in and helped. The food was a bad chicken sandwich with condiments that I could not eat."
Cons: "Flight was delayed. There was not enough space for my carry-on luggage so they had to take it in the front."
Pros: "Nothing. But I did arrive on time"
Cons: "I will try to avoid Lufthansa if I can"
Pros: "Crew and food were fine and movie and tv options not bad"
Cons: "Music options were lacking"
Pros: "Great crew, great flight, food and drinks was awesome"
Cons: "I don't like the fact that I can't choose my seat from earlier because I a big girl and I like to set in the emergency exist seats so I'm not crush up in the middle seat not comfortable and long flight like that lots of pain at the end of the flight"
Pros: "Smooth fast flight with good service!"
Cons: "Late taking off which happens, but they tried to make up the time in the air as much as they could on a short flight,"
Cons: "the flight info was off"
Cons: "They Changed the terminal last minute and i miss the flight ! horrible experience i needed to pay new tickets 300$ ! i will never going to book or recommend to anyone to fly with your company.."
Cons: "The chicken was too spicy & hot for general public. You should take lessons from Swiss Air... food was delicious!"
Pros: "Munich airport is very well organized."
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: "Generally the whole experience with flying Lufthansa was a positive one. Comfortable seats, good leg room, pleasant staff"
Cons: "Nothing really other than we were late leaving/arriving and such a much reduced time on the layover in Frankfurt"
Pros: "Flight Crew"
Cons: "Food was pretty bad."
Pros: "The seats were comfortable, we all had a bottle of water at our seats, we were immediately served drinks and snacks, the meals were really nice (haven't had this in years). Plane crew were friendly and helpful. Kids loved the entertainment selection - it kept them occupied throughout the flight in spite of their young age (3yrs and 5 yrs)."
Cons: "An hour + delayed departure and arrival."
Pros: "The food was okay and the crew did their best to make us comfortable once we were on board. We flew business class, so that was probably a factor."
Cons: "Everything else was horrible. When we got to the airport, they didn't even know we were coming. They sent us to two other airlines, assuming we were flying with a partner airline, then tried to shift the blame onto Kayak. When -- and ONLY when -- we pointed out that we'd actually booked directly through Condor and Kayak had only served as the intermediary, they gave us a direct line to call. Then their agent said "You can't always trust the people at the desk, you know." Oh, really? If I can't trust your own agents, who can I trust, exactly? It turned out that we had an initial flight to Minneapolis, which was NOWHERE on the itinerary, on Sun Country. The Sun Country folks, thankfully, were enormously helpful and we made our flight with 2 minutes to spare. But it doesn't end there. We'd paid for business class all the way, but only got it on the interseas portions of our flights. And they lost our luggage on the way home, to boot. Take home lesson? NEVER FLY WITH CONDOR. I'll walk to Europe before ever booking with them again. And I'll make sure that all my friends and colleagues, all of whom travel extensively, know of our experience."
Pros: "United was operating the flight. They asked for 200 to assign me seat next to the path. I found out in the plane after i got to my middle seat that they gave a good front seat close to the path to somebody who was stand by..... They also stated that they can not check my nags to Sofia since they DO NOT FLY TO SOFIA..."
Cons: "United was operating the flight. They asked for 200 to assign me seat next to the path. I found out in the plane after i got to my middle seat that they gave a good front seat close to the path to somebody who was stand by..... They also stated that they can not check my nags to Sofia since they DO NOT FLY TO SOFIA..."
Pros: "The crew was very polite!"
Cons: "It felt really tight."
Pros: "Just a normal trip"
Cons: "My male neighbor was hanging in my seat :( No normal milk for my coffee - only cream and I don't like cream"
Pros: "Didn't try the food."
Cons: "Nothing out of the ordinary regarding the flight itself. The gate was changed twice, which was inconvenient. Not much leg room or no adjustable pillows on the seats."
Pros: "The aircraft was clean. The service was great. Food was OK. I enjoyed the wine service. Lots of movie choices. HOW does one get "bumped up" to Premium Economy?"
Cons: "The seats in Economy were the most uncomfortable I have ever sat in for such a long time nine and a half hours. All six of us found them to be uncomfortable. No seat bottom cushioning. I had a back pain. Boarding started with the First Class and Business Class first. It took an additional 20 minutes for Economy class to start boarding. The line was very, very long and interfered with other travelers in the airport terminal. "boarding area to Frankfurt was cramped" When we arrived in Denver, only five Custom Agents were on duty to process our arrival passports, although there are 14 control stations at Denver. It appeared as though the Custom Agents were not aware of the arrival of the Lufthansa 747 nor the one that followed. All other Custom in Europe were much more efficient and move people through quickly. What a bad first impress made by the USA Customs people."
Pros: "Clean, polite, new, MUC is a sparkling modern airport. Crew looked snazzy and there were plenty of downstairs bathrooms. On flight movies are great as were audio books on board,"
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: "We paid for extra legroom, if not the trip would've been very uncomfortable"
Cons: "I thought the food was very bad"
Pros: "everything on time on the right place with the right numbers ... perfect ;)"
Cons: "seats on LH435 from ORD to MUC too small and tight"
Cons: "Not enough indian movies. Too many other foreign movies. English movies were too old. Frankfurt airport is the worst airport. Terminal to terminal is too far."
Cons: "I don't expect good food, but found both served meals to be inedible. Confusing security situation at airport - multiple passport controls and at the final point there was only one check in line for all departing US flights. Since most of these flights left within an hour of each other it was bad news. Once again another chance to stand in line for way too long."
Cons: "First flight mechanical issue so couldn't make it to any of my connecting flights and they had to reroute me, however they couldn't get me to Torino so they got me to Milan and I had to take a two hour bus and then the metro to get where I needed to be. And it took them over an hour to reroute my flight!"
Cons: "seats were old and uncofmortable. i asked for coffee which they totally forgot to bring me and the crew was just generally mean and very dismissive. no food at all - could have served a breakfast sandwich or something no entertainment or charging docks. ."
Pros: "Lufthansa is my favorite airline. The service is impeccable, good food, great entertainment and as comfortable as international flights can be in economy class."
Cons: "I did nt like the food offered."
Pros: "The TV system"
Cons: "Can't check in on your website"
Pros: "See above"
Cons: "See above."
Pros: "Overall a nice and good flight"
Cons: "Just a detail, my “head holder” (not too sure how it is called) would not hold in position. Also, staff was a bit slow to come after being called, I had to go and ask for water by myself at some point since no one was coming after 15minites of waiting..."
Cons: "It's KLM. What else do you need to know."
Cons: "A little bit chaotic when they loaded two planes at the same time in a very tight space in Amsterdsm but this was most likey an airport soecific design issue and not a KLM issue. The flight was as good as can be expected fir an international flight. The staff was great"
Pros: "Staff were professional and polite."
Cons: "Despite zone boarding, boarding and disembarkation were very slow. Passengers like me with flight connections were very anxious regarding missing these."
Cons: "Information on arrival time was not correct"
Cons: "Seats in economy section are very close together . There is not enough room for knees...especially for such a long trip."
Pros: "Food and service"
Cons: "Working wifi would be good. Better A/C. More comfortable seats"
Pros: "Seats super comfy. Ended up with 3 seats to myself that formed a bed for the lap Uk to NZ. Very nice!"
Pros: "Very friendly crew and on time with no problems."
Pros: "Crew was very engaging and service was good."
Cons: "My seat was horrible. Right at the door, crammed, and no place to store my carry-on luggage."
Cons: "There was no wifi on flight"
Pros: "Everything was smooth and effortless."
Cons: "Can’t think of anything."
Pros: "The space at my feet with the chair in front was a bit akward."
Cons: "Not being seated next to small kids. Perhaps they should have a separate section? ;-)"
Pros: "My seat"
Cons: "My suitcase wasn’t in the plane. 8 hours in the plane and no one offered us water. We had to look for flight attendant. Entertainment wasn’t great not too many choices and quality of screens was poor"
Pros: "KLM was a great experience compared to Airitalia. The food was good, the flight attendants were very helpful."
Cons: "We were changed from KLM to Airiltalia without any information sent so only because I tried to check in did I find out the flight on KLM was cancelled and we were changed to Airitalia. The Airitalia flight was very mediocre."
Pros: "The flight arrived a few minutes early."
Cons: "The plane was extremely old and in poor repair. The seats were extremely close together. The inflight entertainment system, wifi and passenger electric outlets were all non-functional. Even the wastebin in the lavatory was full and an extra bag was put on the floor."
Pros: "Once aboard the plane, all went well and I experienced excellent service from the cabin attendants."
Cons: "The flight was delayed (again!) for some 40 minutes and I was worried that I would miss my connection flight in Atlanata. Fortunately the pilot made up for the delay (probably costing the airline thousands in fuel). It seems these days that every KLM flight I take is delayed. This stretch goes back to 2015! Yet KLM prides itself as being punctual. Not the KLM that I have been flying!"
Cons: "Poor food, flight attend and finally baggage missing. Overall experience is extremely bad."
Pros: "Short flight and being able to escape from drunk belligerent Passenger on previous flight"
Cons: "The flight advertised meals..a small pastry was served an hour into the flight. I asked when the meal would be and was told a few hours...which turned out to be breakfast..i wated all night for food that only came an hour before landing. Now hungrey and tierd.I.will not be flying klm ever again !!"
Pros: "Face recognition was amazing"
Cons: "Too hot on plane"
Pros: "Good selection of movies."
Cons: "Very small seats with no leg room and very little room on either side. The food was bad - even when compared to other airplane food. Plane is kept too warm."
Pros: "I bought the Airport tickets for my Russian friend. However customs would not allow her to board the plane unfortunately. That's not Kayaks fault. I would definitely book with Kayak again. Many thanks."
Pros: "Everything was great! Crew incredible. They acknowledged my wife’s birthday and made her feel special. Food was ultra salubrious. Loved the big screen monitor."
Cons: "No complaints about anything."
Pros: "I slept pretty much the whole time"
Pros: "Everything excellent. Comfortable seats in business."
Cons: "Nothing good to say about this flight. The plane was old with no entertainment. The sits where very compact and not comfortable at all. The food was a sweet bread and water. The flight attendants were rushing and will take a while if you needed anything. I felt like I was taking a bus with graffiti all over the place."
Pros: "Fairly nice flight. 7 hours AMS to JFK. They had ice cream cones for us mid flight and an after dinner cognac if you wished."
Cons: "Not a big fan of paying for a few extra inches of leg room in a better seat after paying for a ticket."
Cons: "Food and one bathroom out of service makes an awful flight"
Pros: "Friendly attendants. Decent food, and frequent snacks and beverages."
Cons: "No charging ports for electronic devices."
Pros: "Sandwich was incredibly tasty (although not much filling)"
Cons: "2 hours on the tarmac delayed with no explanation. Uncomfortable seats, no leg room. Poor management of seating, there was enough empty seats to have groups together but they were split up. Drinks served from a communal bottle in a polystyrene cup."
Pros: "Cabin crew were very professional."
Cons: "Aircraft returned to gate due to fault and was delayed for 45 min."
Pros: "The aircraft was clean"
Cons: "The food was terrible, wifi was extremely expensive (Delta had free messaging over their wifi)"
Pros: "On time"
Pros: "Very friendly staff"
Pros: "Good efficient flight crew friendly and helpful"
Cons: "una valija se perdió. Eso desató el descontrol que tiene KLM para seguir el equipaje. No hay como hacer tracking. No hay un teléfono a donde hablar, la web está desactualizada y con información equivocada. Direccionan a usar canales de twitter y facebook que no responden. Primer experiencia en KLM y no pienso nunca más usar esta aerolínea. Llevar el equipaje o resolver un problema sobre valijas es de lo más básico de una aerolínea y no lo hacen."
Pros: "Got to Amsterdam on time and everything was great including the staff"
Pros: "Short-hop flight, fit for purpose."
Pros: "was very quick"
Pros: "Of the multiple international airlines I recently flew with, I would have to say KLM was by far the best. Relaxing atmosphere, comfortable seating, great in-flight entertainment, although I have the go-go in-flight data/entertainment plan with t-mobile (highly recommended), the flight included a decent selection of movies, television programs, etc. The food far exceeded typical "airline quality," even for an international flight - and included a fabulous little snack box with locally sourced gourmet and specialty items such as chocolate from Belgium, fine cheeses from France, and crackers from England. Drinks = gratis, and crew was exceptionally attentive and went out of their way to make flight as pleasant as possible."
Pros: "Priority boarding was appreciated and the flights were on time. Service was fine. Schipol was good."
Cons: "Flight from Amsterdam was 2 hours late. Caused me to miss connection on train from London to Leeds which then cost me 124 pounds to rebook. No information was forthcoming at all at the airport and there were 3 different departure times given. Absolute chaos. The airline is a joke"
Pros: "Overall, my trip to Cardiff via Amsterdam was smooth and delightful. I've flown a few short trips this summer and I was pleasantly surprised to find KLM still offered complimentary snacks. What a refreshing change!"
Cons: "There was no entertainment which is why I assigned that category only one star. The boarding process in Amsterdam could have been a bit smoother. Announcements were no clear."
Pros: "Food and staff were great"
Cons: "Entertainment system old and not as many options as other KLM flight. No power on aircraft for charging"
Pros: "Flight crew on flight from Amsterdam to Cape Town were probably the most friendly and enthusiastic I've experienced and no, they were not all young. The plane was spotless throughout the flight. They were always coming around with water and juice and they genuinely seemed to care about all the passengers. The Flight back crew were just the opposite. More like the old lazy farts you get on the American carriers or BA or QF long haul. Whoo have been there for the long haul and should have stopped ages ago."
Cons: "The Entertainment images on the screens promoted Beauty and the Beast, Batman Lego movie but neither were on the system! Food quality was rubbish"
Pros: "Food and drink service"
Cons: "Boarding pass facility"
Pros: "Staff, service"
Pros: "Overall very nice flight, even comes with free drink and snack"
Airlines flying from Boise to Bulgaria have enacted additional safety measures and adjusted policies to better accommodate travelers. Policies vary by airline.
Daily cleaning, installation of cabin HEPA filters on flights from Boise to Bulgaria
Masks required on board, masks provided on flights from Boise to Bulgaria
Social distancing seating
Middle seats unavailable to book on flights from Boise to Bulgaria
Testing for antibodies, testing for symptoms for flights from Boise to Bulgaria
Waiving of change fees. Search flexible flights from Boise to Bulgaria