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Nov 30 — Dec 71
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Wed 11/30
Wed 12/7

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Best time to beat the crowds with an average 10% drop in price.
Most popular time to fly with an average 24% increase in price.
Flight from Bangkok Suvarnabhumi to Kathmandu Tribhuvan
(avg. price over the last 2 weeks)
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When to book flights from Bangkok to Tribhuvan

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

Top tips for finding a cheap flight from BKK to Kathmandu

  • Looking for a cheap flight? 25% of our users found flights on this route for $238 or less one-way and $418 or less round-trip.
  • The cheapest flight from Bangkok to Kathmandu was found 35 days before departure, on average.
  • Book at least 1 week before departure in order to get a below-average price.
  • High season is considered to be November, December and January. The cheapest month to fly is June.
  • Morning departure is around 6% more expensive than an evening flight, on average*.
*Average of the lowest prices shown in KAYAK’s search results for departures within the next 30 days

FAQs for booking Bangkok to Kathmandu flights

Top 3 airlines serving Bangkok Suvarnabhumi to Kathmandu Tribhuvan

Scores according to KAYAK customer reviews
VistaraOverall score based on 188 reviews
Airline reviews

On time performance is to be maintained. Very often VISTARA flights are getting delayed by an hour . Food quality is average . This is premium arililes which is 40% costlier than others and hence service should be upto that mark .

Read more about Vistara

On time performance is to be maintained. Very often VISTARA flights are getting delayed by an hour . Food quality is average . This is premium arililes which is 40% costlier than others and hence service should be upto that mark .

Plane was new, but somehow the seating was cramped and uncomfortable. The earphones were of very cheap variety and kept falling off. The variety of the entertainment was bad. Only a few good movies or shows were available. The check in took a long time even though we were in the priority queue. Boarding was even worse. The agents were very busy talking among themselves and not too bothered about the travelers. I will prefer an indirect flight of another airline like Qatar, or Cathay next time

The best airline. Airlines food is infamous for its bad quality, but Vistara’s food was great.

Make boarding more ordered

Even though it was wireless entertainment system the network speed was so slow.

No reclining seats? Seriously? Probably the first aircraft I have ever seen in my life where the seats don’t recline.

Excellent in flight service, was a short flight, we were served a meal and soft drink. Very comfortable seats. Will definitely fly Vistara again in the near future.

Very rude crew. Bought a business class ticket but didn’t feel like the class in the entire trip. Will not recommend emirates to anyone!!

The Vistara World entertainment system wasn’t working although they announced it is available on this flight. Rest everything was awesome

The aircraft’s inside decor and business class seats.

First time traveler on vistara - liked everything

Very nice experience with Vistara flight.

The security part at Madras airport was horrible. There was no separate queue for business class, and i almost missed my flight due to the delay in security clearance

The best airline to fly in India. Excellent services both on ground and in flight.

UK 708 was an Airbus 320 Neo, one of the least comfortable planes. This was premium economy and the seats weren't really comfortable - but I always travel with a pillow to make up for that. The seat in Row 3 had plenty of leg space as it's behind business class. The food looked sad, and tasted as such too. I miss the old Jet Airways days. Four people at the Boarding were an overkill considering the fact that they didn't really follow sequential boarding. The flight was delayed by 15 minutes while taking off, but landed 5 minutes after original ETA.

It has been an excellent experience travelling with Vistara. Keep it up!!! You will have great times ahead.

Terrible in-flight announcements by the crew, in both Hindi and English.

Wait too long to check in bags

On landing, we had to wait for the bus while most of the aerobridges were empty. Bad experience

Make seat comfortable in premium economy ,food better!

Cabin temperature was too low and uncomfortable

The trip was booked on a Premium Economy, I was moved to standard economy with no compensation. When I boarded the flight crew had already made someone else sit in my place who were reluctant to give me my seat. Quite a few people were found not wearing masks and crew did nothing about it. No choice of food in spite of me with a standard economy ticket that includes the option of food.

Pathetic ground staff and customer care. I paid for an upgrade 3 weeks before the journey, and I was downgraded with no reason.

No Food, No beverages, only water, and there is no information about this sudden change

Surprisingly pleasant experience despite Covid-19 times. Food was too good!

Please add hot drink options - tea, coffee

Pros: "Comfortable seats and service"
Pros: "Vistara ground staff is not very helpful"
Cons: "Vistara ground staff is not very helpful in resolving the problem of my baggage in three days"
Pros: "very welcoming and responsive"
Cons: "avoid last-minute gate changes"
Pros: "The crew was amazing, polite and efficient"
Pros: "The food and crew on board are good"
Cons: "Jodhpur checkin by Vistara was a disaster. Lack of proper queuing system at the scanner and at the desk."
Pros: "Nice crew with good ambience"
Cons: "Online all food options, though it's a small flight with no hot food served!"
Pros: "Vistara ensures it remains a notch above others in terms of ambience, quality. Ensured on time performance"
Cons: "Since they have started on board snacks, it can be offered as a replacement for the meal, maybe. Plus, Indigo staff still exudes more confidence in me"
Pros: "Service was nice. Crew was friendly"
Cons: "Allow for free updrades"
Pros: "The flight was on time. The overall experience was good. Would love to travel with them again."
Pros: "Very good crew"
Pros: "It was my first flight with Vistara. The crew was amazing. They added a personal touch by using my name. Still wondering how they knew that :)"
Cons: "Clear boarding procedures. Instead of 2 boarding groups, it could have been divided into 3-4 boarding groups to avoid congestion."
Pros: "Super professional and kind crew. Food was good. Overall, a fantastic flight."
Pros: "The aircrafts are very nice and much better than Boeings. The decor is also very nice. Vistara is the only domestic airline with premium economy"
Cons: "The upgrade voucher process was very cumbersome, wasted a lot of time. The counter executives did not have a clue about how to use the upgrade voucher"
Pros: "Baggage policy is good"
Cons: "They hanged me for 1 hour at checking counter because they need baggage info proof of my next connecting flight from DEL TO SFO. They should know that all flights from Del to sfo is with 2 pieces baggage."
Pros: "The air hostesses were very warm and friendly."
Pros: "Service was good"
Cons: "Flight was delay that was not good"
Pros: "everything went smoothly.. good service, good food"
Pros: "Was a very good experience. Staff was friendly and organized. Food was good."
Pros: "The best airline in India... by far!"
Pros: "Cleanliness timing"
Cons: "Baggage cost for extra luggages."
Pros: "They had a check in/ luggage drop before the AirTran"
Cons: "Nothing"
Pros: "Wonderful staff and nice, clean airplane. I will use your airlines in the future now."
Pros: "I thought I was taking a budget airline but ended up feeling like I was on a top notch airline. Comfortable seats, good snacks, good services. No complaints and would definitely fly again"
Pros: "Friendly staff, organized boarding, in flight crew helpful in finding seats"

Best airline to travel

There was no turbulence

Good flight


ok fine


Clean cabin, efficient crew.

No one seemed to bother about the pandemic and moreover no one checked if the passengers are fully vaccinated or not. Not a single pandemic rule is being followed.

On time flight, baggage came out fast. Overall good experience

Cons: "In Kiwi i couldnt add extra baggage weight. I had to pay extra in the baggage drop in"
Pros: "Happy"
Cons: "All good"
Cons: "The boarding was poorly managed."
Cons: "The ground crew in Mumbai let on a very drunk group of men who became more and more problematic. Eventually they had to be removed which let to a further delay to an already delayed flight. Bad"
Pros: "Flight delay"
Cons: "Flight delay"
Cons: "Priority boarding for parents with kids."
Cons: "Good airline. Flight was delayed due to weather"
Pros: "Budget Indian airline so was good. Good crew .Bus on and off tarmac , Basic food and paid for but fine. Good legroom in XL seats and std seemed ok too compared to some Australian airlines .Was on time so thats all that really mattered"
Pros: "Cleanliness, and punctuality."
Cons: "Choice of food available. Since it was lunch time, proper lunch type food should be available, and not just snacks."
Pros: "Everything"
Cons: "Nothing I didn't like"
Pros: "Punctuality, and professional service."
Cons: "All good."
Cons: "cost of the seats can be reduced or it can be free"
Pros: "Cleanliness, quality of service and the attitude of cabin staff."
Cons: "Delays to be avoided, Gate changes to be avoided, Boarding process was not properly streamlined."
Pros: "Very new aircraft . On time"
Pros: "On time schedule"
Cons: "Everything."
Pros: "6E Prime was value for money. But food promised was not given as a part of it despite asking."
Pros: "I liked the total travel time the flight took."
Cons: "The boarding suddenly changed the gate just within minutes of the departure & informed none."
Pros: "Absolutely nothing !"
Cons: "The pilot were absolutely amateurs ! Altitude descend felt more like a nose dive ! Approach to mumbai airport was so rough and that we thought our lives were at stake !"
Pros: "Ground reservation and check in crew were amazing."
Cons: "Could have been on time"
Cons: "I wish Indigo flight get in-flight internet."
Cons: "Food variety"
Pros: "Good service"
Cons: "None"
Pros: "Crew was professional and the plane was very clean"
Cons: "The seats are very weak and anyone touching on the backside would feel as if they are directly touching you."
Cons: "Luggage lost. No apologies, no compensation"
Cons: "Lost my luggage due to mistake at check in desk"
Pros: "Air hostess service and flight timings"
Pros: "Overall cleanliness and service"
Cons: "Delay"
Pros: "Flight Stewart’s Response"
Cons: "Ground staff highly untrained & indifferent"
Cons: "Boarding process can be improved. Clarity of announcements from crew needed as well"
Pros: "No delay proffesioal staff and efficient work and space"
Cons: "The plane was full of mosquitoes. The crew had not heard of mosquito repellant, and were unable to do anything to help passengers."
Pros: "It started on time and landed before time."
Pros: "On time"
Pros: "What a great airline! On time, safe, good service, and really cool brand."
Cons: "Limiting the free baggage allowance to 15 kg is quite difficult to meet when you are a foreigner visiting India. The cost for extra weight is very expensive."
Pros: "Punctual and no frills flight, I would go again."
Cons: "Limited food option and choice Appreciate that’s it’s low cost airline, but is disappointingly poor on entertainment (inflight)."
Cons: "The flight was delayed repeatedly, so I never got on board. I drove to Delhi instead to catch my flight from there. Indigo made no arrangements to help anyone get anywhere that I could see."
Pros: "Nothing much. Typical low cost airline with low level of customer care and interaction"
Cons: "I have already stated what I felt."
Cons: "Arrive Chennai after 26 hrs of two flights. Not clear need totransfer to nearby domestic terminal, nor how to get there. Kayak didn't inform me of how to claim my eticket which they had booked thru 3rd party "Kiwi" in Brno, using a credit card number not my own. Had to show my pre printed invoice to claim my "E"-ticket. Stress-inducing, not relaxing, but not a catastrophy."
Pros: "Nice crew, speedy boarding"
Cons: "I checked in 5 hours in advance and they gave me a middle seat without even asking. There were aisle and windows free in the plane"

Air India must improve lot of their domains - a) Food - it was not hot or fresh like how other airlines provide it. On the contrary - it was quite bad b) Entertainment - About 90% of the TV systems in the flight did not work. How do you expect people to travel for about 14.5 hrs non stop without entertainment systems working? c) Seating - The handle bars wee broken and coming off every single time we get up. Seriously? Is this a rural bus or an international flight? Air India charges about $150 or more than even luxury flights and fail to provide basic amenities. It so pathetic.

Entertainment systems non existent! Most were broken. No pillows even though it was a long flight. Place was too hot.

I don't recommend anyone air india

It was not bad

On the way there, my flight was delayed. I was scheduled to leave the airport on the 7th, but it got postponed and I had to stay at the airport an extra 4 days. Obviously this was quite inconvenient, but what's more is the same thing happened on the way back. My flight was scheduled to leave for the U.S. on Tuesday but it again got canceled. During my stay at the airport, the staff was also particularly rude. They told me it "was my problem not there's" and other things of the like. Though I understand why the flight was delayed, with the shortages and lack of workers, but at the very least I believe the staff could have been at least kinder. Other than this, the flight was relatively smooth and I enjoyed my flight.

If none of the screen works then good to not have any. They keep freezing and keep spitting sql database error messages. For most of them touch screen or the remote doesn’t work at all. Worst food I had in my whole life. Also they are offering only 2 times food instead of 3 although it was good because food quality wouldn’t have attracted me to take chance for the third time. No pillow or the blankets or toothbrush etc. randomly allocating seats to the same family members. My whole family had to sit all over the place. Folks on checking counter not helpful at all. The carry on bag I’m using for past 10 years was not allowed this time and I don’t know why.

Cons: "Timeliness"
Cons: "The runway lights at lucknow airport caused the plane to turnaround"
Pros: "The Boeing 777-300 Dreamliner"
Cons: "Entertainment Food Bathroom Cleanliness Cabin Crew could be more assertive in instructing other unruly passengers. Crew seemed timid and gave in to passengers who were disruptive to others."
Cons: "The seats are old they could have the new seats that have better storage for eye glasses ., phone etc Food quality could be better"
Pros: "Nice airline. Cleanliness was excellent. Service was quite good. Ample room in economy class. Very nice airline"
Cons: "there were multiple delays and extremely poor communication to the passengers about the status. The announcements were hard to hear and on top of that the crew did not speak English very well. I, along with a few others, missed our connecting flight due to the delays on this flight. The crew also mentioned they would hold the flight for us...which they didn’t. The flight itself felt unclean and the entertainment was lacking. Overall a horrifying experience and will avoid flying Air India ever again."
Cons: "The flight was supposed to leave at 5:45 am it was delayed for 3 hours and then canceled until 20:30. That flight was delayed for 2 hours. I finally made it to my hotel and only had 3 hours to sleep until my classes began at 8 am in Bengaluru. I have never been more miserable. Being late made my trip extremely complicated. I didn't have time to prepare for my classes. I'm never flying Air India again."
Pros: "Legroom, food ok"
Cons: "Little service. Crew did not distribute immigration cards to everyone."
Pros: "Everything."
Cons: "Nothing."
Pros: "One hour flight ,there was no problem.4 O’clock snack was good."
Cons: "Too much delay Of the flight without giving a reason is irritating & all the programmes get upset."
Pros: "No Baggage Fees, Full Service"
Pros: "The flight crew was awesome. Very friendly and welcoming. Served well even in between the scheduled service"
Cons: "Flight was delayed by 5 hours. No reason given other than operational issues. What does that mean? All airport staff sucked at both airports. SFO more so. They broke my bag. There was no agents around for an hour.. Then they said 40$ is the maximum they pay for a broken bag!"
Pros: "Overall great service. 4 due to delayed flight."
Cons: "See above"
Pros: "Timing was convenient."
Pros: "The customer service and hospitality by staff"
Pros: "The fact that the plane worked and I was able to arrive in New Delhi safely."
Cons: "Awful service! The air hosts/hostesses don't care about you if you traveling economy. This was a 16 hour flight but they didn't even offer water for 6-7 hours. I used my attendant button at least 12 times and no one came to my seat. I had to hunt them down and found all of them holed up in the back of the plan gossiping and laughing. Adding to this, their entertainment systems were faulty and didn't work half of the time I was on the plane. The sound quality may have been alright but the headphones that they provided gave a really muffled sound so it was really hard to understand. I tried to use my personal headphones but the entertainment system would only allow for Air India's "special" headphones. The food was mediocre and they served their meals in spurts. Within the first two hours of the plane taking off, they served us one meal. Then there was no food or water service for at least 8 more hours. Then they gave us a meal 4 hours before we were supposed to land and then again a heavy snack an hour later. So basically, we were left to fend for ourselves for 8 hours with no food or water. I am dreading the journey back from Delhi to Chicago now."
Pros: "The crew is great as always. The entertainment was working for a change."
Cons: "Flight was very late. Little bit unclean. Food wasn't great."
Cons: "Travel was not comfortable and the food during entire 16 hr travel was horrible. I could not eat anything except tea and coffee. I usually not a complainer about my travel. I always travel by Air India. But past couple of times the quality of food has declined a lot and I thought I should inform about it. Also the AI crew was unprofessional. They were talking in their local language. They should also pay attention to their appearance. Thank you."
Pros: "Decent food on a very short flight."
Pros: "Flight is not stop India to Usa"
Pros: "Clean air plain and food was good"
Cons: "Stuff not very friendly and it got delay for more than one hour"
Pros: "Nothing."
Cons: "Flight seems to be very old and Entertainment screens not working. Not sure what to do during a flight time of 13hr without entertainment. Felt like flight attendants have zero respect towards their passengers. Responses were rude. No one attended service requests multiple times. Air India domestic crew far better than their international crew. Stupid crew and worst flight. My first and last air India flight."
Pros: "Nothing in particular!!!"
Pros: "Nothing really other than it got us to Mumbai"
Cons: "Very chaotic boarding LONG wait on tarmac with NO updates Food really bad"
Pros: "Food and service nice. Boarding was quick but then the flight flight was delayed"
Cons: "The seat cloth looks old. Seats need to be more cushioned and improved."
Cons: "My monitor for entertainment was not working at all. The flight attendant said he will reset it but it didn't work. Even my light didn't work. I was left doing nothing in the plane, neither watch entertainment on monitor nor read a book on a very long flight. This is a very poor service, I am considering not to fly on air India anymore."
Pros: "Food and staff was awesome!"
Cons: "The seats werent comfortable, the tray table hinge was broken."
Pros: "The flight is direct is the only good thing. The legroom is good, but that's due to the plane being extremely old."
Cons: "There are so many things that I have jotted down a list. 1. Plane is really old 2. Entertainment on most of the seats are broken. 3. Remotes don't work either. 4. Crew is extremely unprofessional. (Domestic Air India crew is more professional than international) 5. Crew is incompetent as well. They couldn't figure out how to organize over head space. I had to help them out. Eventually someone from the airport had to come and help as they wanted our flight to depart on time. 6. All the plane announcements from the hostess and the pilot was crass. 7. There was just enough food, but no extras or snacks. 8. One of the meals out of three was inedible because it was super spicy."
Cons: "Tray table was dirty"
Pros: "Younger staff working very hard. Very good listener. Always trying to resolve the issue at hand and helping the tiny kids calm down."
Cons: "These long flights are very tough. Every time I travel the TV does not work. At least 5 of them gave up and tried to go back to sleep. Attendants tried to no avail. How much can you eat? Food is typically made for economy class. You get what you pay. But I do have a choice taking other Air liner with new fleet of Air craft. I think I am going to do that."
Cons: "I do not like the luggage handling, as my luggage zip was broken and some item were found broken"
Pros: "Food, service, entertainment, airport staff, On-board bathroom cleanliness and services"
Cons: "Hello ridiculous flight. unethical update from kayak on the flight status."
Pros: "The staff and food was good"
Cons: "Not enough crew members for such a large number of passengers. Toilets ended up being closed due to the inability of staff to clean and serve"
Pros: "Nothing"
Cons: "Everything. Flight was, as usual, late - a typical of Air India. No announcements informing that the plane was running late. People started lining up to board outside the gate, but with no ground staff on sight. 10 minutes past the departure time, 2 personnel show up informing Pax that the flight was running an hour late. Food was stale. I would rather you not serve any food and knock off a few $$ from the fare, rather than serving distasteful and stale food. Overall, bloody pathetic condition of the aircraft."
Cons: "I doubt we'll fly Air India again if we have any alternative."
Pros: "There is nothing which was good"
Cons: "Every thing"
Cons: "We left 3 hours late. I missed my second flight. The flight attendants on the plane were lovely and helpful but the the Air India crew in the airport was not helpful at all in solving the problem their company created. On top of that my luggage is missing and I keep getting the run-around from Air India. I called a number, they told me to call another number. I called 6 times before anyone picked up. They told me to send an email. It's been a week and I still haven't even talked to anyone about my luggage."
Pros: "More leg room on Air India than some others"
Pros: "Non stop flight"
Cons: "Poorly msintained aircrsfts. Smellled of milddew"
Pros: "Nothing"
Cons: "Bad food, entertainment screens don't work. Crew was no help"
Pros: "It took off and landed safely."
Cons: "Baggage restrictions cost travelers $100s of dollars if India is only a stopover when visiting other near countries. One light check in was all that was allowed. Our group was on a medical mission and had to have a bag for our clothes and one for medical supplies. It cost over $800 for 6 of us to have the medical come with us to Nepal. As humanitarian volunteers, that money comes out of our pickets. There is no reimbursement from the sponsoring charitable foundation. We could check both bags for free from the US to Nepal, but because we had to have a layover in India, Air India charged for one of the bags. There was no other airline option available to avoid this cost."
Pros: "Nothing is good"
Cons: "Everything. This airlines delays the flights for a reason. If a flight is delayed the passenger will somehow struggle and argue with Air India to get an accommodation. Once the passenger reaches the mediocre hotel, which has already a deal with some person from Airlines, they basically are providing business to such hotels. All this show is put up at the expense of Travellers' time, money and energy. Never gonna travel with this airlines again. About 10 of us on the same day missed the connecting flight to British Airways BA138 because of 1.45 delay from Air India flight AI 51. We suggest British Airways not to show up this shitty airline along with their flights in the iternary."
Pros: "entertainment options were surprisingly diverse and the crew was fantastic. i loved the tinted windows and wish all planes had that."
Cons: "both of flights were delayed for over an hour and the plane felt quite outdated and not well cleaned."

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3 stopsAir India
19h 25mBKK-KTM
2 stopsAir India
15h 35mKTM-BKK
3 stopsAir India
19h 25mBKK-KTM
2 stopsAir India
15h 35mKTM-BKK
1 stopAir India
25h 20mBKK-KTM
2 stopsAir India
15h 35mKTM-BKK
1 stopAir India
25h 20mBKK-KTM
2 stopsAir India
15h 35mKTM-BKK
3 stopsAir India
19h 25mBKK-KTM
2 stopsAir India
15h 35mKTM-BKK
1 stopMultiple Airlines
28h 25mBKK-KTM
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8h 10mKTM-BKK
2 stopsAir India
19h 25mBKK-KTM
2 stopsAir India
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28h 25mBKK-KTM
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nonstopNepal Airlines
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1 stopMultiple Airlines
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28h 20mKTM-BKK
nonstopNepal Airlines
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nonstopNepal Airlines
3h 20mKTM-BKK
nonstopNepal Airlines
3h 30mBKK-KTM
nonstopNepal Airlines
3h 20mKTM-BKK
1 stopVistara
20h 55mBKK-KTM
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24h 50mKTM-BKK
nonstopNepal Airlines
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3h 20mKTM-BKK
1 stopMultiple Airlines
28h 25mBKK-KTM
nonstopMultiple Airlines
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21h 00mBKK-KTM
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25h 00mKTM-BKK
1 stopIndiGo
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