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Good to know

Low season

February

High season

December

Cheapest flight

$522

Average price round-trip

$1,167

Good deal round-trip

$807

Good deal one-way

$432
Best time to beat the crowds with an average 4% drop in price.
Most popular time to fly with an average 13% increase in price.
Flight from Salt Lake City to Bangkok Suvarnabhumi
(avg. price over the last 2 weeks)
or less
or less

FAQs for booking flights from Utah to Bangkok

Top 3 airlines serving from Utah to Bangkok

Scores according to KAYAK customer reviews
8.3
Qatar AirwaysOverall score based on 10882 reviews
8.3Boarding
8.2Comfort
8.6Crew
8.3Entertainment
8.0Food
Airline reviews
Pros: "As always crew magnificent"
Read more about Qatar Airways
Pros: "As always crew magnificent"
Pros: "Wifi !!!!"
Cons: "Bigger seats"
Pros: "Tripulación muy atenta"
Pros: "The A330, despite being an old plane, had really good recline."
Cons: "The entertainment was very outdated."
Pros: "Too crowded"
Cons: "One more staff will be better"
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: "All crews are helpful especially to parents traveling with young kid."
Cons: "More variety of food would be great"
Pros: "Good Service.Efficient"
Cons: "No Phone charging facilities on back of the seat unlike other Qatar aircraft."
Pros: "The Crew was amazing. The Seat were the best Selling point fort business class"
Cons: "More space for the arm rest ans legs space"
Pros: "Good service/Crew food quality and choice good."
Cons: "Need more choice of British TV Programmes rather than American"
Pros: "Everything"
Cons: "Non"
Pros: "Good entertainment."
Cons: "Very cramped seating."
Pros: "Good leg space, friendly crew, excellent plane."
Cons: "This is for ALL airlines: It takes so long to get off the plane!"
Pros: "Plane was very empty so it allowed us to spread out."
Cons: "Cabin noise was loud. There was a high pitched whine throughout the whole trip."
Pros: "Went out of their way to be helpful"
Pros: "Gave food vouchers due to extended layover. Marché food quality is average at best."
Cons: "Biggest problem was late arrival, missing connection. Lateness caused by them at first, then a departing passenger caused further delay. But they were late to begin with. Next problem was their REFUSAL to give me an aisle seat. I reserved an aisle seat originally, aisle seats were available when I tried to change, but agent REFUSED to accommodate me with either aisle or window. Sat in middle with huge guy next to me. Very uncomfortable. Food was mediocre on this leg. Oh, and late departing AGAIN. Will seriously look for other options on next trip."
Pros: "Plane was clean and modern. Staff was very courteous. An overall pleasant flight."
Pros: "Crew were good, food was decent"
Cons: "Equipment/electronics was a bit dated."
Pros: "Video on Demand at each seat in coach. Friendly staff. Also patient staff, what with the languages they have to cover with each flight. The airline goes everywhere so it’s impossible to say what anyone will be speaking."
Pros: "The visit to the lounge is always refreshing. The service at the shower area is great however policing of people using phones in the quiet zone should be enforced"
Cons: "The good got used a bus gate which is acceptable however this typically takes additional time if there is a connection flight"
Pros: "Seats were comfortable, they were aware of alternative meal requests, professional, comfortable temperature"
Cons: "When dropping my bag at check in counter, the employee at the counter asked, somewhat intrusively, what the extra fee I paid was for. When I told her it was for the Al Mourjan lounge in Doha, her facial response and attitude came across as judgemental, and was not appropriate"
Pros: "Individual service, happy and natural looking crew, comfort and company aim."
Pros: "The flight attendants were very friendly. On the flight, snacks and drinks were bright by every hour or so and the meals were plenty of food and tasted good. I was given a bag with eye cover, earplugs, socks, face wipes and ear phones. Entertainment was good as well. Qatar is an amazing airline. Wish we had something like this in the States!"
Pros: "everything went smoothly, no delays, boarding was easy and quick"
Pros: "All around great airline. Comfortable for super long flights and completely accommodating."
Pros: "Flight attendants very nice"
Cons: "Boarding at JFK. PHONEY wheel chair users. Saw a woman with one leg who.REALLY needed one tough it out while others were just lazy. I saw them walking after wards. They just don't want to wait in.line. Handicapped should have wheelchairs but once they have them they should wait like everyone.else"
Pros: "Films Service"
Cons: "Not enough films"
Pros: "Heavenly for an airplane ride!"
Pros: "see above"
Cons: "see above"
Pros: "Nothing"
Cons: "Crew is meek and doesn’t smile or try very hard. Flight was FULL of nasty Russian tourists. Miserable experience"
Pros: "Good, drinks, service and entertainment system."
Pros: "Although we flew economy, we received excellent service from an attendant from the Philippines."
Cons: "We have no complaints."
Pros: "i do like service in plane and at the counter no problem with baggage.all ok.thank for good service.sincerly vladimir hodan"
Pros: "Loved the food and entertainment."
Cons: "Not enough leg room and space between the chair in front."
Pros: "All"
Cons: "None"
Pros: "Stopover in Doha fun. The people are so friendly."
Pros: "Enterment"
Cons: "Crew nice alway take care customer"
Pros: "The flight attendants was nicer on this flight then the US to Doha flight"
Cons: "Seats were not comfortable"
Pros: "Could not be more impressed with the airline, absolutely would recommend to anyone!"
Pros: "Comfortable seat and good service"
Cons: "None"
Pros: "In-flight entertainment is excellent. Some of the grew also excellent. Had excellent seat 68d. Lots of leg room. Aircraft looked brand new."
Cons: "6 hour delay with no explanation. No apology. Stuck in transit with nothing to do. Not impressed at all. Boarding also delayed. Food on this flight was very poor."
Pros: "Comfortable, attractive, nice music, good food, nice crew, on time, easy takeoff and landing! What else could you ask for? ;-)"
Pros: "Nice and spacious aircraft."
Cons: "Some confusion on Hindu meal and vegetarian meals."
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: "Overall, an excellent short flight. I was flying with oversize luggage (bicycle), which is offer a hassle. The ticket agent took care of it without issue, and it arrived safely. Food was OK. I would try Qatar for a long flight if the opportunity arises."
Cons: "Boarding was chaotic. Everyone just queued up instead of using zones, etc."
Pros: "The staff"
Cons: "I thought the flight was fine :)"
Pros: "Attentive service ready to appease any request very clean toilets"
Cons: "Type of aircraft Films Selections in particular World Group not changed much since April"
Pros: "I will fly Qatar again"
Pros: "Top notch service by Qatar airline. They accommodated us. We don't eat beef or chicken and didn't know you could request vegetarian online before flight. They found a fish meal and informed us to apply for meal online."
Cons: "Seats too close. Person in front was in our lap almost."
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."
Pros: "A flight was delayed due to weather conditions and we had to sit in the plane for almost an hour, BUT information sharing from the Capitan was sufficient and on-time. Very good job from pilots. Leg room in economy - I was positively surprised, very decent leg room! Thank you for providing it."
Cons: "I flew economy and all was good and appropriate to the level."
Cons: "I paid for the preferred seat .and i found that people beside me didnt pay anything when i asked them ,"
Cons: "Boarding was crazy. Could not everyone in the gate area."
Pros: "Pleasant crew. Appropriate and efficiently served snack."
Cons: "Boarding and disembarkation were slow."
Cons: "Information on arrival time was not correct"
Cons: "Delay due to strike"
Pros: "The crew was pleasant"
Cons: "Baggage checkin & flight boarding was slow & disorganized."
Pros: "The crew was great. The soecial meal request was hadled well despite oversight."
Cons: "Soecial meal request was made in advance but overlooked. Did not mind it so much as eating less is not a bad idea! To err is human."
Pros: "Just as I expected. And I made my last connection easily."
Cons: "Don’t be late"
Pros: "Seat was comfy and spacious for economy class"
Cons: "Vegetarian meal was okay but could be more enjoyable if served with bread at start of meal."
Cons: "The flight was a bit delayed, but the airline handled it incredibly well. I was put up in a great hotel with good free food and caught another flight the next morning."
Cons: "Head support for 6 feet plus people on seats would be good"
Pros: "Crew was amazing. They adjusted the seating arrangements so there was an empty seat in every row to give passengers more space. Very thoughtful and much appreciated. They served delicious meals, snacks, and water. They provided headphones, blankets and pillows. They took very good care of us."
Cons: "Entertainment"
Pros: "Service is awesome. Food is great."
Cons: "People with short connection are affected by the 15 to 25 minutes delay."
Cons: "There was no wifi on flight"
Pros: "Nothing!"
Cons: "We were told they were holding our flight, we ran 3 terminals and they’d already left."
Pros: "KLM was a great experience compared to Airitalia. The food was good, the flight attendants were very helpful."
Cons: "I called for a crew member 5 times and waited 25 minutes for anyone to help me with just some water. I had to get up and go to the very back of the plane to ask for some water. The plane was hot and no air to be found. This was all after we had to get back off the plane before takeoff. It was terrib"
Pros: "Good comfortable seat with extra leg room. Pleasant crew."
Cons: "Trouble checking in regarding a visa issue?.. no other trouble at the other airports.."
Cons: "Check in at Berlin was extremly slow. Staff was very unprofessional and not very friendly."
Pros: "Face recognition was amazing"
Cons: "Too hot on plane"
Pros: "Shirt flight but well catered, boarding was efficient and quick."
Cons: "Not lots of legroom but adequate for an hour long hop. It was cold on board and also had to board via steps from outside"
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: "Professional crew. Good boarding."
Cons: "No entertainment on board in business. Stale buns - staff unapologetic. Older 737 with uncomfortable seats."
Pros: "The aircraft felt clean and quite spacious (decent legroom). Cabin crew was friendly and everything went as expected. Bonus points for the Beemster cheese sandwich (I was totally disappointed when they served the food, but more than pleasantly surprised by the quality of the cheese - I even bought some afterwards, from the Albert Heijn just outside the security area)."
Cons: "Very odd queue separation at boarding. Passengers were divided in 5 lanes, depending on their seating area withing the plane (for a more efficient boarding, I presume) but, by the time we all got to the actual aircraft, we formed another queue in the boarding bridge so it didn't feel like any time was saved or anything."
Pros: "Arrived Early!"
Cons: "Left Late :-)"
Pros: "Good service onboard, good food. On time."
Pros: "crew were absolutely delightful, full of smiles and doing everything to make you comfortable. seats were fine enough and got some work done and a bit of sleep. first lunch was fresh and tasty, but the second, a burger, was edible, but not much more."
Cons: "tv screens are dated so movies are not as crisp as you find in newer planes. you need a 2 prong audio adapter to use your own headphones."
Pros: "Friendly staff"
Cons: "Entertainment was dated and poor in function. Our bags were 99 dollars each and we’re both lost and didn’t arrive. I just filed a claim and got rude service saying I should have filed the claim at the airport baggage area but there was not anybody there to do the claim then he agent upstairs said they just spoke to them and they are there and I should have done it there. This was so rude and there is no way to get back into customs area. If we paid 200 for bags I expect them to arrive on time. I’m asking for a refund of the baggage fees."
Pros: "Lovely staff, good food, great movies."
Pros: "Boarding was a breeze and the staff were lovely. Online check was very simple and easy to navigate."
Cons: "The amount of extras you have to click no to while checking in online."
Pros: "The food was excelent"
Cons: "I have to pay to pay a little more confort"
Pros: "Clean airplane, friendly crew, no rush, nice snacks for a short one hour flight. Just generally a positive experience."
Cons: "It was announced I can choose between fish and chicken meal but when I requested for fish meal, I was told it’s finished. My seat was 21, and it surprised me. If something can be changed about that then your services would be much appreciated. Thank you."
Pros: "Cabin Crew was awesome."
Cons: "Entertainment System was not working and no Non-veg food option in flight."
Pros: "Good multi media access and content"
Pros: "Easy Boarding"
Pros: "Equally friendly crew and experience. It was complimented by the time we got to spend in the fantastic KLM lounge while we waited for the flight."
Cons: "Nothing!"
Cons: "old plane, tight and uncomfortable"
Cons: "KLM can't seem to figure out the order of boarding the plane. Should be business - priority - everyone else. Instead they do priority first, and that's usually two-thirds of the passengers. Also, really tired of the fake business class on these flights..."
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."
Cons: "Nothing."
Pros: "Very efficient boarding, fast and professional but warm and friendly. The plane was very clean and quite spacious for a two by two configuration. On time departure and landing and smoothed processing at the other end."
Cons: "Nothing to improve"
Pros: "Everything was good. The crew was very friendly and attentive. The plane was comfortable, with great entertainment on the personal screens. The food was delicious. Flight was on time and actually arrived early, but then we had to wait for a gate (not the airline's fault)."
Cons: "No complaints at all."
Pros: "Fortunately, the plane was not full, so people could spread out a bit to create extra room. The food was really good! (surprisingly)."
Cons: "KLM's new configuration for this type of plane made the seats even narrower than before. While leg room was reasonable, the 3 abreast seating meant a lot of discomfort, especially in the row right in front of the restroom."
Pros: "The staff and crew"
Cons: "Nothing"
Pros: "Night flight so no entertainment allowed sleeping"
Cons: "Kosher food could be improved"
Pros: "Atmosphere, crew were very professional and friendly"
Cons: "Seats were a little too narrow, and quite uncomfortable when a broad shouldered person is sitting next to you"

Delayed 4 hours in Chicago.

Pros: "Great having every set have its own screen and charging port"
Cons: "Not to be an hour delayed and make half the plane miss their connections!"
Cons: "Gate agent was cold rude and incompetent"
Pros: "Flight attendant was very fun. It was her birthday and made the day fun for everyone."
Cons: "Seats are always too close together - left to right and front to back. A sad reality that only improves for the well-to-do."
Cons: "Lack of social distancing with American Airlines"
Pros: "Only masked picking up trash during pandemic - difficult to rate crew"
Cons: "Organized exit vs. usual crowded chaos of passengers in a hurry"
Pros: "Great crew"
Cons: "American Airlines has to be the worst airlines there is. It never fails that they try I Cath someone and try to pretend that their carry-on bagIs too big. They have this tiny little frame no reasonable carry-on could possibly fit into. Over and over again I see people including myself and my traveling companion’s having to check their carry-on bag because their “too big” this is nonsense. These are standard size bags. It’s more than enough space on board the plane. In a way in which the gate check individuals handle this interaction is a palling you’re insulting demanding and don’t give you a chance to rearrange your luggage so I can go into their absurd dimensions"
Cons: "I wish there were charging ports so I could charge my device on such a long flight."
Pros: "The crew was friendly and the flight was almost on time."
Cons: "The power outlet at my seat didn't work. The baggage was delivered to the wrong carousel at DFW. The seats are TOO DAMN SMALL."
Cons: "Nothing. Everything was great."
Pros: "Fast boarding and efficient, friendly crew. I paid for an upgraded economy seat, which had more legroom and fit my body (more or less)."
Cons: "AA's seats seem to have gotten thinner in recent years, so I find them less comfortable. There's no in-flight entertainment; you have to download the airline's flight app on your device and stream from there."
Cons: "Flight was 90 mins late departing"
Cons: "The wifi didn't work at all"
Pros: "last minute upgrade was nice, made sleeping much nicer. food was good, flight uneventful which is always a good thing."
Cons: "Some of the flight attendants had an attitude and we not very personable to others. Just doing their job, ticking off the boxes. One was very kind, the others not so much."
Cons: "I was forced to check my bag bc the plane was “full” but when I got on there were more than 5 completely empty overhead bins. So now I’m waiting in baggage claim, after an already delayed flight, when there was absolutely plenty of room on board for my bag (which was of acceptable size)."
Pros: "Wi-Fi and USB ports worked great. Seat was comfortable after 11 upgrade. On time."
Cons: "Having to pay extra for a aisle seat"
Pros: "Seats were nice, flight was efficient, arrived early."
Cons: "Gate agent spoke so ridiculously fast and swallowed so many sounds that it was virtually impossible to understand most of what he was saying. Most importantly we all missed that our roll-on bags wouldn’t fight in the overhead bins. As a result many people pulled their bags on and fought and struggled to force their luggage above, only to give up. The on-board agents recognized early the problem and then proceeded to allow many other passengers to stroll by them with their large roll-on bags, only to delay the boarding process and frustrate everyone. When making their safety announcement the flight attendant was clearly competing for fastest speaking human and rushed through at blazing speeds. In all my 30+ years of travel, I’ve never heard anything like it."
Pros: "Nothing it totally messed us up"
Cons: "We missed our 1night in Rome-had to go home and come back the next day-we missed our train tickets and hotel in Rome and it made our trip a lot shorter!"
Pros: "I liked the fact that, my flight was miraculously on time leaving salt lake city"
Cons: "I don’t like, however, the fact that 3 of the last 5 times I’ve flown American round trip midland tx to Salt Lake City I have missed my connecting flight on the way back due to no fault of my own. I have flown this trip once a month for the past six months and have to do it two more times before December. American sucks"
Cons: "Seats are so uncomfortable! Too close together"
Pros: "Time was good. Ground service was good. In-flight was okay. Because I love Cathay so much I took a 3 hour longer trip through LA (vs. Seattle) and paid more. But I was berating myself for that. But the flight back was Cathay service at its finest."
Cons: "We were not told our passports needed to have an expiration past six months of travel even though we got back before the expiration. We entered our passport info including our expiration dates and we’re given no warning. We even had our boarding passes prior to showing up at the airport. We will not use Kayak in the future and will book direct through the airline moving forward."
Cons: "Snacks were okay, nothing to shout about. Streaming movies is still of a mystery to me, not an intuitive experience in any sense of the word. the sites AA provides to answer one's questions don't give any real guidance on 'how', just state what, kept pointing me to the app which doesn't have any menu item to view movies. took me well over ten minutes to find any helpful information."
Pros: "Cabin crew was excellent."
Cons: "Deplaning at an inconvenient remote terminal with unattractive and minimal facilities, which involved waiting in a long line for a series of buses for transport to the main terminal. Arrival at the main terminal required climbing a flight of stairs. No in-flight food service offered except a choice between one cookie or one cracker."
Cons: "I am very frustrated that a single part could not be located in the early afternoon to allow the plane to fly. I will be late again for work and it seems to be American Airlines and not Delta that has all the delays or is late."
Cons: "Flight delayed by 35 minutes"
Pros: "Flight attendants"
Cons: "The flight got delayed from salt lake and we had to spend a day in Charlotte before another flight came"
Pros: "Everything was perfect"
Cons: "Not enough snow in salt lake"
Pros: "I went to check in for my flight and was told that it changed to American Airlines. By the time I arrived to the gate it the flight was full and they wouldn't let me on. I want a refund."
Cons: "See above."
Pros: "Good in-flight service, comfortable first class seat."
Cons: "Arrival gate was remote from main terminal, requiring a crowded and disorganized wait for a bus to the main terminal and baggage claim. The extremely small overhead storage cabinets of the Canadair required many passengers to check normally acceptably sized carry-on bags after boarding and finding it impossible to fit. Waiting time for retrieving these on the ramp at the destination was excessive."
Pros: "Free movies and tv"
Cons: "Nothing"
Cons: "The Three days it took to get 10 hours away horrible customer service no one was there to help us.30 people were stranded"
Pros: "They were so helpful as we checked in and checked our bags! :)"
Pros: "Comfort, snacks, boarding process"
Cons: "N/A"
Pros: "All good"
Cons: "No entertainment without paying"
Pros: "Both American flights (on Airbus 321, I think) I've taken in the past two weeks had comfortable seating with great legroom. My knees were not knocking the seat in front of me! Seat width also comfortable. Not sure how I lucked up on both flights!"
Pros: "For tall people more room for the legs"
Cons: "The Seats aré very near"
Pros: "Grest staff"
Cons: "Thought the first row seating would provide extra leg room which the reservation page said it would and we paid extra for the seats - not so. it also felt quite claustrophobic with a panel within a short distance of our faces. We had upgraded for better seats but it turns out the seating wasn't better at all. The flight home in seats much further back were MUCH more comfortable. I'm thinking the airline shouldn't book the front seats by the panel as 'better' for the extra price as they were definitely not."
Pros: "Courteous and professional crew"
Cons: "Delay taking off, due to technical issues with aircraft. Seat area is much too small for an adult."
Pros: "Snacks and entertainment"
Pros: "The planes were comfortable."
Cons: "I didn't get a boarding pass for my third flight."
Pros: "Completely satisfactory for my needs"
Pros: "Good pilot communications. On time departure and arrival."
Cons: "Very cramped quarters. Broken seat. Out of control heating system. Rude staff An hour wait for baggage."
Pros: "Convenient and close to home. Don't have to drive many hours either to Omaha or Denver."
Cons: "Seats don't recline."
Pros: "Delta is better"
Pros: "Everything went well. Great assistance because I can't walk far. They got me to my gate on time."
Cons: "Delayed plane on last leg of flight, over 1 hr."
Pros: "Nothing"
Cons: "Everything!"
Cons: "I had to sit next to a huge overweight guy who took all of his own seat and at least 1/3 of mine. He had to have a seatbelt extension... not so cozy. My shoulder was damp from his armpit sweat by the time I arrived in Dallas. The flight was full or I would have requested a different seat."
Cons: "The boarding process was a mess. The terminal was crowded and there was no clear line to board."

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56h 40mSLC-BKK
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33h 04mBKK-SLC
$961
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37h 45mSLC-BKK
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3/2Thu
3 stopsMultiple Airlines
36h 50mSLC-DMK
$629
3/13Mon
3 stopsMultiple Airlines
44h 38mSLC-BKK
$631
2/16Thu
1 stopKLM
31h 40mSLC-BKK
$5,770

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Flights to Bangkok

Cabin classes:

$18,890
$5,965
$2,278
$1,049

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