KTM - BKK

₹ 19,440 Find Cheap Flights from Kathmandu to Bangkok

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Kathmandu to Suvarnabhumi departing on 6/6. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

KAYAK searches hundreds of travel sites at once for deals on flights to Bangkok Suvarnabhumi Airport

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Kathmandu to Bangkok, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Kathmandu to Bangkok, as well as popular online travel agencies
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Everything you should know

Cheapest return fare
₹ 29,958
Typical prices: ₹ 29,864-₹ 20,942
SriLankan Airlines
Wed 26/8Sun 30/8
KTM - BKK • 1 stop
Cheapest direct flights
₹ 43,199
Typical prices: ₹ 30,333-₹ 19,346
Thai Airways
Tue 14/7Tue 21/7
KTM - BKK • Direct
Top airlines
Cheapest • from ₹ 29,958 (return)
Best reviews • 7.9 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
Direct flights
You can fly direct with Thai Airways and Nepal Airlines. Average duration is 3h 26m
Direct flights
Direct flights
+1
+1
Direct flights
Direct flights
+1
Avoid delays
Most punctual • 72% on-time
Best time • Fewest delays
Insights
Insights
Insights
Insights
Top stopover airports
Cheapest • Avg ₹ 30,277 (return)
Shortest trip • 14h 35m (one-way)
Insights
Insights
Insights
Insights
When to book
in advance
Our data shows that travellers who book at least 8 weeks in advance save around 14% compared to booking last minute.
Insights
Insights
Insights
Insights
When to travel
Cheapest • 11% price drop
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
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Start a new search
KAYAK searches hundreds of sites at once to find you the best travel deals.
We hope you love your trip to Suvarnabhumi!
Flight Deals
Booking Insights
Flight Deals

Cheap Flights from Kathmandu to Suvarnabhumi (KTM-BKK)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for return flights from Kathmandu to Suvarnabhumi that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent return flight deals from Kathmandu to Suvarnabhumi

Wed, 26 Aug - Sun, 30 Aug
SriLankan Airlines Logo
13:40 - 12:45
KTM
-
BKK
21h 50m
1 stop
SriLankan Airlines Logo
07:45 - 12:15
BKK
-
KTM
29h 45m
1 stop
₹ 29,958SriLankan Airlines
Fri, 15 May - Wed, 20 May
Air India Logo
10:05 - 20:25
KTM
-
BKK
9h 05m
1 stop
Air India Logo
22:25 - 06:35
BKK
-
KTM
9h 25m
1 stop
₹ 35,968Air India
Wed, 15 Jul - Tue, 21 Jul
Air India Logo
06:45 - 16:55
KTM
-
BKK
8h 55m
1 stop
Air India Logo
15:15 - 23:00
BKK
-
KTM
9h 00m
1 stop
₹ 36,343Air India
Wed, 26 Aug - Sun, 30 Aug
Air India Logo
21:10 - 07:40
KTM
-
BKK
9h 15m
1 stop
Air India Logo
22:25 - 06:35
BKK
-
KTM
9h 25m
1 stop
₹ 36,625Air India
Wed, 15 Jul - Tue, 21 Jul
Air India Logo
10:05 - 20:25
KTM
-
BKK
9h 05m
1 stop
Air India Logo
15:15 - 23:00
BKK
-
KTM
9h 00m
1 stop
₹ 36,719Air India
Wed, 15 Jul - Tue, 21 Jul
Air India Logo
17:30 - 14:15
KTM
-
BKK
19h 30m
1 stop
Air India Logo
17:55 - 06:35
BKK
-
KTM
13h 55m
1 stop
₹ 36,813Air India
Wed, 26 Aug - Sun, 30 Aug
Air India Logo
07:35 - 20:25
KTM
-
BKK
11h 35m
1 stop
Air India Logo
15:15 - 23:00
BKK
-
KTM
9h 00m
1 stop
₹ 37,001Air India
Fri, 15 May - Wed, 20 May
Air India Logo
10:05 - 20:25
KTM
-
BKK
9h 05m
1 stop
Air India Logo
20:20 - 13:40
BKK
-
KTM
18h 35m
2 stops
₹ 38,973Air India
Tue, 14 Jul - Tue, 21 Jul
Thai Airways Logo
00:25 - 05:10
KTM
-
BKK
3h 30mdirect
Thai Airways Logo
21:15 - 23:25
BKK
-
KTM
3h 25mdirect
₹ 43,199Thai Airways
Tue, 14 Jul - Tue, 21 Jul
Thai Airways Logo
00:25 - 05:10
KTM
-
BKK
3h 30mdirect
Thai Airways Logo
21:15 - 23:25
BKK
-
KTM
3h 25mdirect
₹ 43,293Thai Airways
Booking Insights

KAYAK's insights & trends for Kathmandu to Suvarnabhumi flights

Get data-powered insights and trends into flights from Kathmandu to Suvarnabhumi to help you find the cheapest flights, the best time to fly and much more.

How much is a return flight from Kathmandu to Bangkok Suvarnabhumi Airport?

This analysis is based on the cheapest return trip price found on KAYAK in the last 12 months by searching for a flight from Kathmandu to Bangkok Suvarnabhumi Airport departing in August.

What is the cheapest month to fly from Kathmandu to Bangkok Suvarnabhumi Airport?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Kathmandu to Bangkok Suvarnabhumi Airport, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from Kathmandu to Bangkok Suvarnabhumi Airport is July, where tickets cost ₹ 23,196 (return) on average. On the other hand, the most expensive months are May and April, where the average cost of round-trip tickets is ₹ 31,460 and ₹ 30,897 respectively.

Can I save money by flying with a stopover from Kathmandu to Bangkok Suvarnabhumi Airport?

The average return price for all direct flights, flights with one stopover, and flights with two stopovers for the route found by users searching on KAYAK in the last 2 weeks.

Yes, flying with a stopover may cost you more time, but you can also save money on the route, with a 1 stop stopover the cheapest option at ₹ 32,553 on average.

How far in advance should I book a flight from Kathmandu to Bangkok Suvarnabhumi Airport?

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from Kathmandu to Bangkok Suvarnabhumi Airport, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

To get a below average price on the flight from Kathmandu to Bangkok Suvarnabhumi Airport, you should book around 8 weeks before departure, which saves you about 14% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 14 weeks before departure.

Good to know

Low seasonMarch
Cheapest flight₹ 19,440
Best time to beat the crowds (7% less expensive on average)
Most popular time to fly and prices are also 5% lower on average.
Flight from Kathmandu to Bangkok

When to book flights from Kathmandu to Suvarnabhumi

Are your dates flexible? Find out the best times to travel from Kathmandu to Suvarnabhumi based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated return price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or returns with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking Kathmandu to Bangkok flights

  • What is the cheapest flight from Kathmandu to Bangkok Suvarnabhumi Airport?

    In the last 3 days, the lowest price for a flight from Kathmandu to Bangkok Suvarnabhumi Airport was ₹ 19,440 for a one-way ticket and ₹ 29,958 for a return.

  • Which airlines offer Wi-Fi service onboard planes from Kathmandu to Bangkok?

    Only flydubai offers inflight Wi-Fi service on the Kathmandu to Bangkok flight route.

  • Which aircraft models fly most regularly from Kathmandu to Bangkok?

    The Airbus A320-100/200 is the aircraft model that flies most regularly on the Kathmandu to Bangkok flight route.

  • Which airline alliances offer flights from Kathmandu to Bangkok?

    Star Alliance is the only airline alliance operating flights between Kathmandu and Bangkok.

  • On which days can I fly direct from Kathmandu to Bangkok?

    There are direct flights from Kathmandu to Bangkok on a daily basis.

  • Which is the best airline for flights from Kathmandu to Bangkok, Thai Airways or Thai AirAsia?

    The two airlines most popular with KAYAK users for flights from Kathmandu to Bangkok are Thai Airways and Thai AirAsia. With an average price for the route of ₹ 34,571 and an overall rating of 7.9, Thai Airways is the most popular choice. Thai AirAsia is also a great choice for the route, with an average price of ₹ 23,297 and an overall rating of 7.4.

  • How does KAYAK find such low prices on flights from Kathmandu to Bangkok?

    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 from Kathmandu to Bangkok.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Kathmandu to Bangkok?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Bangkok from Kathmandu is likely to change within 7 days, so travellers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Kathmandu to Bangkok?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional return ticket. You could then fly to Bangkok with an airline and back to Kathmandu with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Kathmandu to Bangkok?

    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 Bangkok from Kathmandu up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

KAYAK’s top tips for finding a cheap flight from Kathmandu to Bangkok Suvarnabhumi Airport

  • Looking for a cheap flight? 25% of our users found flights on this route for ₹ 63,153 or less one-way.

Prefer to fly direct from Kathmandu Tribhuvan to Bangkok Suvarnabhumi?

 
Nonstop data is based off flight results for the next 60 days. Find direct flights from all airlines flying nonstop from Kathmandu Tribhuvan to Bangkok Suvarnabhumi.
Find which airlines fly direct from Kathmandu Tribhuvan Airport to Bangkok Suvarnabhumi Airport, which days they fly and book direct flights.

Direct departures

Kathmandu Tribhuvan to Bangkok Suvarnabhumi

Monday

Nepal Airlines,Thai Airways

Nepal Airlines,Thai Airways

Tuesday

Thai Airways

Thai Airways

Wednesday

Nepal Airlines,Thai Airways

Nepal Airlines,Thai Airways

Thursday

Thai Airways

Thai Airways

Friday

Nepal Airlines,Thai Airways

Nepal Airlines,Thai Airways

Saturday

Thai Airways

Thai Airways

Sunday

Thai Airways

Thai Airways

See more direct flights

Direct returns

Bangkok Suvarnabhumi to Kathmandu Tribhuvan

Monday

Nepal Airlines,Thai Airways

Nepal Airlines,Thai Airways

Tuesday

Thai Airways

Thai Airways

Wednesday

Nepal Airlines,Thai Airways

Nepal Airlines,Thai Airways

Thursday

Thai Airways

Thai Airways

Friday

Nepal Airlines,Thai Airways

Nepal Airlines,Thai Airways

Saturday

Thai Airways

Thai Airways

Sunday

Thai Airways

Thai Airways

See more direct flights

Reviews of the top 3 airlines flying from Kathmandu to Suvarnabhumi

 
See real verified KAYAK customer reviews for airlines flying from Kathmandu to Bangkok. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Kathmandu to Suvarnabhumi? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.9
Thai AirwaysOverall score based on 401 reviews
7.7Comfort
7.4Food
6.9Entertainment
8.4Crew
7.9Boarding
Airline reviews

HAVING ANNOUNCEMENTS FOR PEOPLE TO BOARD ACCORDING TO GROUP IS ESSENTIAL N ENSURING N CUTTING OF QUEUES, EXCEPT FOR PRIORITY CLASS PASSENGERS ON A SEPARATE Q

8.0 ExcellentHQ, Mar 2026
BKK - SIN
Read more Thai Airways reviews

HAVING ANNOUNCEMENTS FOR PEOPLE TO BOARD ACCORDING TO GROUP IS ESSENTIAL N ENSURING N CUTTING OF QUEUES, EXCEPT FOR PRIORITY CLASS PASSENGERS ON A SEPARATE Q

We still get drinks and a snack. Love the gift bags too.

business class is old but still done very well by the team.

Excellent airline. The plane was clean and the staff were very attentive

Good experience although the boarding gate is at the terminal extension hence need to leave lounge to head over earlier.

Thai Royal First is very good. Easy check in , Private room in the first class lounge and escort from ticketing to the plane. Once on board crew was very polite, food was outstanding, and the ride was smooth as silk. Restrooms were especially clean. Great Experience

I'm not interested in improving the airline. Therefore, I won't explain this in more detail. Next time I'll try a different one.

The flight (boarding) was delayed by 40-50 minutes and there was very crowed. They need to improve on the timeliness & boarding process. (They asked passenger to board in groups, but the 2nd group was standing there waiting for 20 minutes!). However, services from the crew was very good, also the food was good as well. I also found the legroom was quite comfortable.

Need to improve on punctuality. My flight was delayed by 1 hour.

Seats were uncomfortable and the vegetarian meal was awful. Some of the entertainment didn't work.

the rudest staff in the world!!! we had overweight baggage, which is our fault but it is a really stupid rule, and the woman said we could reorganise or pay now, we said we’d reorganise and she started shouting “do it now! hurry up!” even though the flight wasn’t even boarding yet. She told us that if our two cabin bags were below 14 together, then we wouldn’t have to pay 500k dong. We reorganised and our bags were below 14kg. She then said that it was all of our bags together that should be less than 14kg. We were obviously confused by this, because she had just said that it was our two cabin bags and we asked her why she told us to rearrange our bags then. She started shouting at us again saying that we needed to “pay now or throw away”. We said fine, we’ll just pay, and she suddenly started asking for 1.51 million dong. I asked her why it was suddenly over three times the price and she said that it was always that price. I asked to see the other piece of paper she had that had the other price and she slammed her one on top of it and started shouting “pay now or i’ll close the gate” (boarding was already finishing at this point). So, we had no choice but to pay three times the original price, even though we reorganised our cabin bags to be under the necessary weight like she had asked us to. I wouldn’t even be so upset about the money if the staff were at least a little bit nice. She was possibly the rudest, most ignorant woman I have ever met in my life. Besides that, the plane/flight was just a bit worse than ryanair standard. Small seats, delayed by an hour. Typical low budget. At least the ryanair staff don’t try to scam you. Avoid at all costs, it’s not worth the hassle of dealing with such horrible people.

The boarding process took very long, partly due to passengers on incoming flight took too long to deplane

The flight left on time and landed early. The attendants were polite and friendly. Thank you

Efficient and fast check in, courteous staff at counter and on board. On time departure and arrival. AIR ASIA is my favorite international thailand carrier for reasonable cost and excellent customer service!

Delayed us three times, changed gates twice, and then tried to charge for food on the plane.

Not good in terms of amenities. For over 6 hours they don’t even provide complementary drinks or snacks-forget about dinner or lunch.

Air Asia just dreadfull. Always poorest customer service and very unwelcoming staff which is clearly bread in from the Top down from the CEO

Everything was good. The red seats were a scam. Just like any other seat but red. Although they let you board earlier which was very nice.

Other than the bus wait time to off board passenger when we reached Don Muang, everything else was excellent

Very good, it would be good if payment for drinks could be accepted by card too.

Direct flight to BALI was good and convenient. Improvement suggestions - provide complimentary water

50 minutes delay on boarding,but overall delay time almost 2 hours on arrival.

I specifically searched for flight with checkin bags. Airfare assist website still sold tickets without check in bags and I had to pay 3 times more for my bad. Worst experience ever with untrained staff and haphazard boarding

As a frequent flyer, I was impressed with the smooth take off.

No frills means no frills... I just got on the plane and flew. That's all. Nothing more and nothing less. Or I did buy some water, they took cash only! LOL

First the flight delayed 1 hour ND then when we suppose to landing the pilot decided not to land at the chiang Mai Airport but the chiang rai airport

Everything you need to know for your flight from Kathmandu to Suvarnabhumi

Information on your arrival and departure airports