BKK - KTM

฿5,789 Find Cheap Flights from Bangkok Suvarnabhumi Airport to Kathmandu – Compare and Save

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Suvarnabhumi to Kathmandu departing on 13/8. 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.
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Everything you should know

Cheapest return fare
฿12,588
Typical prices: ฿9,003-฿15,062
Air India, ศรีลังกาแอร์ไลน์
Mon 24/8Wed 9/9
BKK - KTM • 2 stops
Cheapest direct flights
฿13,429
Typical prices: ฿9,003-฿15,062
Nepal Airlines
Fri 28/8Fri 4/9
BKK - KTM • Direct
Top airlines
Cheapest • from ฿12,622 (return)
Best reviews • 7.9 score
Airline reviews
Airline reviews
+1
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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
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+1
Direct flights
Direct flights
+1
Avoid delays
Most punctual • 80% on-time
Best time • Fewest delays
Insights
Insights
Insights
Insights
When to book
in advance
Our data shows that travellers who book at least 3 weeks in advance save around 16% compared to booking last minute.
Insights
Insights
Insights
Insights
When to travel
Cheapest • 25% 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 Kathmandu!
Flight Deals
Booking Insights
Flight Deals

Cheap Flights from Suvarnabhumi to Kathmandu (BKK-KTM)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for return flights from Suvarnabhumi to Kathmandu 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 Suvarnabhumi to Kathmandu

Mon 24 Aug - Wed 9 Sep
Multiple Airlines Logo
14:40 - 06:35
BKK
-
KTM
17h 10m
2 stops
Multiple Airlines Logo
13:40 - 12:45
KTM
-
BKK
21h 50m
1 stop
฿12,588Multiple Airlines
Mon 24 Aug - Thu 3 Sep
Multiple Airlines Logo
14:40 - 06:35
BKK
-
KTM
17h 10m
2 stops
Multiple Airlines Logo
13:15 - 12:45
KTM
-
BKK
22h 15m
1 stop
฿12,588Multiple Airlines
Wed 9 Sep - Wed 16 Sep
Air India Logo
14:40 - 00:05
BKK
-
KTM
34h 40m
2 stops
Air India Logo
10:05 - 06:30
KTM
-
BKK
19h 10m
1 stop
฿12,622Air India
Fri 4 Sep - Fri 11 Sep
Air India Logo
14:40 - 00:05
BKK
-
KTM
34h 40m
2 stops
Air India Logo
21:10 - 14:15
KTM
-
BKK
15h 50m
1 stop
฿12,655Air India
Fri 28 Aug - Fri 4 Sep
Nepal Airlines Logo
16:45 - 19:00
BKK
-
KTM
3h 30mdirect
Nepal Airlines Logo
11:10 - 15:45
KTM
-
BKK
3h 20mdirect
฿13,429Nepal Airlines
Fri 14 Aug - Fri 21 Aug
Nepal Airlines Logo
16:45 - 19:00
BKK
-
KTM
3h 30mdirect
Nepal Airlines Logo
11:10 - 15:45
KTM
-
BKK
3h 20mdirect
฿13,598Nepal Airlines
Fri 4 Sep - Fri 11 Sep
Nepal Airlines Logo
16:45 - 19:00
BKK
-
KTM
3h 30mdirect
Nepal Airlines Logo
11:10 - 15:45
KTM
-
BKK
3h 20mdirect
฿13,833Nepal Airlines
Fri 4 Sep - Fri 11 Sep
Thai Airways Logo
21:15 - 23:25
BKK
-
KTM
3h 25mdirect
Thai Airways Logo
13:30 - 18:15
KTM
-
BKK
3h 30mdirect
฿14,035Thai Airways
Fri 4 Sep - Thu 10 Sep
Thai Airways Logo
10:15 - 12:25
BKK
-
KTM
3h 25mdirect
Thai Airways Logo
00:25 - 05:10
KTM
-
BKK
3h 30mdirect
฿14,170Thai Airways
Fri 4 Sep - Thu 10 Sep
Thai Airways Logo
10:15 - 12:25
BKK
-
KTM
3h 25mdirect
Thai Airways Logo
00:25 - 05:10
KTM
-
BKK
3h 30mdirect
฿14,237Thai Airways
Booking Insights

KAYAK's insights & trends for Suvarnabhumi to Kathmandu flights

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

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

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

Flight prices are typical for this route right now.

Flights to Kathmandu from Bangkok Suvarnabhumi Airport usually cost between ฿8,448 and ฿15,179 in August.
The lowest price found in the past 5 days was ฿12,588 on Multiple Airlines (24 Aug–9 Sep).

What’s the cheapest day of the week to fly from Bangkok Suvarnabhumi Airport to Kathmandu?

The average price of all round-trip flights from Bangkok Suvarnabhumi Airport to Kathmandu clicked on KAYAK for each day over the last 12 months.

If you are looking for a flight deal from Bangkok Suvarnabhumi Airport to Kathmandu, look for departures on Mondays and avoid leaving on a Thursday, as it's usually the priciest day. When flying back from Kathmandu, Sunday is the cheapest day to fly and Wednesday is the most expensive.

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

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Bangkok Suvarnabhumi Airport to Kathmandu, 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 Bangkok Suvarnabhumi Airport to Kathmandu is January, where tickets cost ฿8,179 (return) on average. On the other hand, the most expensive months are July and August, where the average cost of round-trip tickets is ฿15,853 and ฿14,809 respectively.

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

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from Bangkok Suvarnabhumi Airport to Kathmandu, 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 Bangkok Suvarnabhumi Airport to Kathmandu, you should book around 3 weeks before departure, which saves you about 16% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 23 weeks before departure.

Good to know

Low season

June

Cheapest flight

฿5,789
Best time to beat the crowds but there is an average 25% increase in price.
Most popular time to fly (8% more expensive on average)
Flight from Bangkok Suvarnabhumi Airport to Kathmandu

When to book flights from Suvarnabhumi to Kathmandu

Are your dates flexible? Find out the best times to travel from Suvarnabhumi to Kathmandu 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 Bangkok Suvarnabhumi Airport to Kathmandu flights

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

    In the last 5 days, the lowest price for a flight from Bangkok Suvarnabhumi Airport to Kathmandu was ฿5,789 for a one-way ticket and ฿12,588 for a return.

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

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

  • Which airline alliances offer flights from Bangkok Suvarnabhumi Airport to Kathmandu?

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

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

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

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

    The two airlines most popular with KAYAK users for flights from Bangkok to Kathmandu are Thai Airways and Thai AirAsia. With an average price for the route of ฿16,725 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 ฿9,372 and an overall rating of 7.4.

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

    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 Bangkok Suvarnabhumi Airport to Kathmandu.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Kathmandu from Bangkok Suvarnabhumi Airport 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 Bangkok Suvarnabhumi Airport to Kathmandu?

    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 Kathmandu with an airline and back to Bangkok Suvarnabhumi Airport with another airline.

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

    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 Kathmandu from Bangkok Suvarnabhumi Airport 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 Bangkok Suvarnabhumi Airport to Kathmandu

  • Looking for a cheap flight? 25% of our users found flights on this route for ฿14,912 or less round-trip.

Prefer to fly direct from Bangkok Suvarnabhumi to Kathmandu Tribhuvan?

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

Direct departures

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

Direct returns

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

Reviews of the top 4 airlines flying from Suvarnabhumi to Kathmandu

 
See real verified KAYAK customer reviews for airlines flying from Bangkok to Kathmandu. 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 Suvarnabhumi to Kathmandu? 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 412 reviews
7.7Comfort
7.5Food
8.4Crew
8.0Boarding
6.9Entertainment
Airline reviews

Excellent service in business class. Well worth the slightly higher fare as it includes lounge access, additional luggage weight and a full hot meal on board.

10.0 ExcellentRamon, Jul 2026
BKK - KKC
Read more Thai Airways reviews

Excellent service in business class. Well worth the slightly higher fare as it includes lounge access, additional luggage weight and a full hot meal on board.

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.

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

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.

They used Thai Smile plane, which is a smaller model and used to service only domestic flights; hence, the plane is small and quite compact. No entertainment on the flight. While boarding was delayed, it was done in a quick manner.

The flight was delayed going out of the gate at BKK that made it a difficult challenge to get through immigration transfer at tapei and make it to my departure on time. This appears to be a recurring issue. The flight crew and cabin crew were excellent. The food was very nice.

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.

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

Ontime, no frills, the cabin is clean, the ticket price is lower than the full-service airlines.

Paid for a meal we didn't receive. They admitted they had forgetten ours. No compensation or rectification offered. We requested if they would just give us a glass of wine instead and we would call it even. Crew advised they could not do this and to go to Air Asia counter on arrival and request a refund. Our flight didn't arrive until 2am so this was not a viable option. The crews solution was if we wanted a wine we should purchase one. I was unhappy with that suggestion considering they had already ripped us off with our meal.

The boarding process was very poor - refueling on so rear ladder blocked. I think while boarding both ladders should be accessible so that passengers are comfortable instead of crowding through front ladder

Very few crew meant that we had to wait almost 2 hours just the get a drink!

Thai Air Asia no longer has customer support that you can call and talk to. All support is done by chat bot or self help websites. This can be a major issue if you have a problem and it bit us so we can’t recommend nor will we book with them again unless as a last resort.

Landing to Hanoi in time Seat not reclining -Cabin design very dull

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

Poor customer service! They don’t have 24/7 customer service. I was stranded in the transit area of the airport for over 21 hours. I was denied to board a plane without any help that caused my entire return flight to be cancelled. I had to book an entire new return flights. It caused me lots of stress, waste of my time and money.

What started as a small delay at checkin ended up being a two and a half hour delay by the time the plane took off. The annoying part was that we weren’t told what the holdup was.

Offer a pillow in business class for night flight. More comfortable seats. Offer alcoholic beverages. Get flight attendants that care.

It was not possible to do an online checkin with Nepal Airlines. Apart from that, all the rest was very good : good food, friendly staff that ensure that Covid rules are respected (not always easy),…

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

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