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Cheap flights from Bangkok Suvarnabhumi Airport to Kathmandu from $419

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 8/3. Fares are subject to change and may not be available on all flights or dates of travel.
BKK — KTM
11 Mar — 18 Mar1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Suvarnabhumi to Kathmandu

Enter your travel dates to find the best prices.

Cheapest flights from Suvarnabhumi to Kathmandu
Explore the most affordable flight options available from Suvarnabhumi to Kathmandu. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 9 February 2026.

Sat 7/319:55
BKK
-
KTM
1 stop27h 50m
China Southern
Sat 14/312:30
KTM
-
BKK
1 stop24h 45m
China Southern
Deal found 6/2$454
Sat 7/319:55
BKK
-
KTM
1 stop27h 50m
Multiple Airlines
Sat 14/313:30
KTM
-
BKK
Nonstop3h 30m
Multiple Airlines
Deal found 6/2$557
Sat 4/413:55
BKK
-
KTM
1 stop23h 35m
Multiple Airlines
Fri 10/411:10
KTM
-
BKK
Nonstop3h 20m
Multiple Airlines
Deal found 8/2$586
Sat 7/310:15
BKK
-
KTM
Nonstop3h 25m
Thai Airways
Sat 14/313:30
KTM
-
BKK
Nonstop3h 30m
Thai Airways
Deal found 6/2$614
Sat 7/316:10
BKK
-
KTM
2 stops15h 40m
Air India
Sat 14/317:30
KTM
-
BKK
2 stops18h 05m
Air India
Deal found 6/2$631
Tue 18/811:05
BKK
-
KTM
1 stop11h 55m
Malaysia Airlines
Mon 7/922:45
KTM
-
BKK
1 stop10h 15m
Malaysia Airlines
Deal found 8/2$841
Wed 19/818:40
BKK
-
KTM
1 stop28h 20m
Malaysia Airlines
Mon 7/922:45
KTM
-
BKK
1 stop13h 25m
Malaysia Airlines
Deal found 8/2$849
Wed 11/319:55
BKK
-
KTM
2 stops21h 20m
China Eastern
Sat 14/317:00
KTM
-
BKK
1 stop19h 50m
China Eastern
Deal found 8/2$851

Find flight deals from Suvarnabhumi to Kathmandu

Discover tips and strategies to find the most affordable flight options for your journey from Suvarnabhumi (BKK) to Kathmandu (KTM). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated 9 February 2026.

Round-trip from

$454

One-way from

$419

Popular in

April

Cheapest in

January

Average price

$427

Good one-way deal

$342 or less
China Southern
  • China Southern
  • 7/3-14/3
  • 2 total stops
  • 52h 35m total
  • Bangkok to Kathmandu
Search Deals
China Eastern
  • China Eastern
  • 8/3
  • 2 total stops
  • 38h 05m total
  • Bangkok to Kathmandu
Search Deals
Highest demand for flights based on searches. 8% potential increase in price ($51 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($17 potential savings vs. average return price).
Search Deals
Average for round-trip flights in February 2026
Search Deals
Price to beat on a one-way flight from Bangkok Suvarnabhumi to Kathmandu Tribhuvan.
Search Deals

Cheapflights Fare Finder

 
Customise your flight search to find flights from Suvarnabhumi to Kathmandu that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 647,157 searches. Data last updated 9 February 2026.
Use the filters below to find and compare flights from Bangkok Suvarnabhumi Airport to Kathmandu that are best for you.

Fly from

Suvarnabhumi

Fly to

Kathmandu

Route

Depart

Return

Price

BangkokKathmandu

BKK - KTM

BKKKTM

Bangkok Suvarnabhumi

Sat 7/3

19:55-22:30

1 stop27h 50m

Kathmandu Tribhuvan

Sat 14/3

13:30-18:15

Nonstop3h 30m

$557

BangkokKathmandu

BKK - KTM

BKKKTM

Bangkok Suvarnabhumi

Sun 22/3

03:10-16:00

2 stops38h 05m

Kathmandu Tribhuvan

Tue 7/4

15:35-01:15

2 stops32h 25m

$859

BangkokKathmandu

BKK - KTM

BKKKTM

Bangkok Suvarnabhumi

Fri 20/3

18:15-16:00

2 stops23h 00m

Kathmandu Tribhuvan

Sat 4/4

15:35-01:15

2 stops32h 25m

$859

BangkokKathmandu

BKK - KTM

BKKKTM

Bangkok Suvarnabhumi

Fri 13/3

19:55-16:00

2 stops45h 20m

Kathmandu Tribhuvan

Sun 29/3

15:35-12:20

1 stop19h 30m

$878

BangkokKathmandu

BKK - KTM

BKKKTM

Bangkok Suvarnabhumi

Tue 24/3

03:10-16:00

2 stops38h 05m

Kathmandu Tribhuvan

Thu 9/4

15:35-01:10

2 stops32h 20m

$906

BangkokKathmandu

BKK - KTM

BKKKTM

Bangkok Suvarnabhumi

Fri 3/4

14:15-21:45

1 stop8h 45m

Kathmandu Tribhuvan

Mon 20/4

22:45-13:25

1 stop13h 25m

$945

BangkokKathmandu

BKK - KTM

BKKKTM

Bangkok Suvarnabhumi

Tue 24/3

13:35-16:00

3 stops51h 40m

Kathmandu Tribhuvan

Tue 31/3

15:35-03:20

2 stops34h 30m

$950

BangkokKathmandu

BKK - KTM

BKKKTM

Bangkok Suvarnabhumi

Wed 13/5

12:35-21:45

1 stop10h 25m

Kathmandu Tribhuvan

Wed 20/5

23:00-15:25

1 stop15h 10m

$977

BangkokKathmandu

BKK - KTM

BKKKTM

Bangkok Suvarnabhumi

Thu 16/4

18:40-12:00

1 stop18h 35m

Kathmandu Tribhuvan

Tue 21/4

22:45-10:15

1 stop10h 15m

$1,036

BangkokKathmandu

BKK - KTM

BKKKTM

Bangkok Suvarnabhumi

Thu 26/3

03:10-16:00

2 stops38h 05m

$422

Flights are sorted by cheapest return flights first.

Deals found on 6/2

Showing 1-10 of 19 results
1
2

Best time to book a flight from Suvarnabhumi to Kathmandu

Have a flexible travel schedule? Discover the best time to fly to Kathmandu from Suvarnabhumi with our price prediction graph.
Estimated return price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Bangkok Suvarnabhumi Airport to Kathmandu

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

Use this chart to determine the optimal time to book a return flight from Suvarnabhumi to Kathmandu. Price data was last updated on 6 February 2026.

The best time to book flights from Bangkok Suvarnabhumi Airport to Kathmandu is 79 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

What is the cheapest month to book a flight from Bangkok Suvarnabhumi Airport to Kathmandu?

Currently, July is the cheapest month in which you can book a flight from Bangkok Suvarnabhumi Airport to Kathmandu (average of $174). Flying from Bangkok Suvarnabhumi Airport to Kathmandu in October is currently the most expensive (average of $341). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from BKK to KTM?

Find hourly flight availability from Suvarnabhumi to Kathmandu. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 9 February 2026.

When flying from Bangkok Suvarnabhumi Airport to Kathmandu, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

How much does it cost for a return flight from Bangkok Suvarnabhumi Airport to Kathmandu?

Reviews of airlines servicing Kathmandu

Get insights into the airlines that provide service to Kathmandu. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Kathmandu. Reviews last updated 9 February 2026.
Check out reviews from past customers who have flown with Thai Airways, Thai AirAsia, andThai Lion Air from Bangkok Suvarnabhumi Airport to Kathmandu to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Thai Airways
7.8
Good
382 reviews
Check prices

Boarding

7.9

Comfort

7.6

Entertainment

6.8

Food

7.4

Overall

7.8

Crew

8.4

Reviews

1 / 20
10.0
Excellent

Virendra,Jan 2026

DEL - BKK

Having required wheel chair assistance, I received amazing service from the ground and cabin staff. Everything was a breeze. Flight was comfortable but the entertainment system was quite dated. The chicken noodles served was amazing
Thai Airways
7.8
Good
382 reviews
Thai Airways
7.8
Good
382 reviews
Check prices

Boarding

7.9

Comfort

7.6

Entertainment

6.8

Food

7.4

Overall

7.8

Crew

8.4

Reviews

1 / 20
10.0
Excellent

Virendra,Jan 2026

DEL - BKK

Having required wheel chair assistance, I received amazing service from the ground and cabin staff. Everything was a breeze. Flight was comfortable but the entertainment system was quite dated. The chicken noodles served was amazing
Thai AirAsia
7.5
Good
234 reviews
Thai Airways
7.8
Good
382 reviews
Check prices

Boarding

7.9

Comfort

7.6

Entertainment

6.8

Food

7.4

Overall

7.8

Crew

8.4

Reviews

1 / 20
10.0
Excellent

Virendra,Jan 2026

DEL - BKK

Having required wheel chair assistance, I received amazing service from the ground and cabin staff. Everything was a breeze. Flight was comfortable but the entertainment system was quite dated. The chicken noodles served was amazing
Thai Lion Air
7.1
Good
40 reviews
Thai Airways
7.8
Good
382 reviews
Check prices

Boarding

7.9

Comfort

7.6

Entertainment

6.8

Food

7.4

Overall

7.8

Crew

8.4

Reviews

1 / 20
10.0
Excellent

Virendra,Jan 2026

DEL - BKK

Having required wheel chair assistance, I received amazing service from the ground and cabin staff. Everything was a breeze. Flight was comfortable but the entertainment system was quite dated. The chicken noodles served was amazing

Related info for your journey

Find useful and relevant information for your journey from Suvarnabhumi to Kathmandu. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly into for flights to Kathmandu from Bangkok Suvarnabhumi?

    Located just 4.1 km from the city centre, Kathmandu Tribhuvan is the airport most travellers will use when flying to Kathmandu from Bangkok Suvarnabhumi. Booking flights from Bangkok Suvarnabhumi to Tribhuvan (KTM) should be relatively easy as there are 2 daily inbound flights from Bangkok Suvarnabhumi from 3 different airlines.

  • How long is the flight from Bangkok Suvarnabhumi Airport to Kathmandu?

    Departing from Bangkok Suvarnabhumi Airport to Kathmandu will take you 38h 05m. Airlines will cover a distance of 2227 km.

  • What are the cheapest airlines flying from Bangkok Suvarnabhumi Airport to Kathmandu round-trip?

    Cheapflights users have booked flights from Bangkok Suvarnabhumi Airport to Kathmandu round-trip from $162. Other airlines that can offer you cheap pricing are Thai AirAsia, from $187, and Thai Airways, from $421. These flights start at 60% lower than the current average price 3 months from now.

  • What are the cheapest airlines to fly from Bangkok Suvarnabhumi Airport to Kathmandu one-way?

    To fly one-way, consider booking your trip with Thai AirAsia, which is currently one of the cheapest options available, starting at $121. Thai Lion Air flights start at $122 while deals on Thai Airways start at $321 one-way.

  • What are the cheapest flights from Bangkok Suvarnabhumi Airport to Kathmandu?

    On average you can expect to pay $342 for a flight from Bangkok Suvarnabhumi Airport to Kathmandu. The cheapest flight overall is $331 while the most popular route, (Bangkok Suvarnabhumi - Kathmandu Tribhuvan) is currently priced at $546.

  • Can I find deals for flights from Suvarnabhumi to Kathmandu that include hotel bookings?

    Yes. In addition to deals on Suvarnabhumi to Kathmandu flights, Cheapflights offers holiday packages that include both flights and hotel.

  • How can I find direct flights from Suvarnabhumi to Kathmandu?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Suvarnabhumi to Kathmandu.

  • Can I find deals for business class flights from Suvarnabhumi to Kathmandu?

    Yes. Cheapflights offers flight deals from Suvarnabhumi to Kathmandu by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

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

    Currently, July is the cheapest month in which you can book a flight from Bangkok Suvarnabhumi Airport to Kathmandu (average of $174). Flying from Bangkok Suvarnabhumi Airport to Kathmandu in October is currently the most expensive (average of $341). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Travelling to a place near Kathmandu?

Book flights to Kathmandu if you plan to visit one of these locations
Nagarkot

Browse thousands of different options on Cheapflights for your next trip

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Complete your trip

Complete your trip to Kathmandu by adding a car hire and/or hotel booking to your travel itinerary.
Kathmandu car hire
Kathmandu Tribhuvan Airport car hire

Top 3 airlines flying from Suvarnabhumi to Kathmandu

Discover the top 3 airlines that operate flights from Suvarnabhumi to Kathmandu. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 647,157 searches. Data last updated 9 February 2026.
AirlineCheapestAverageFlexibilityOn-time
Thai Lion AirCheapest$162Average$386FlexibilityNo cancel feeOn-timeN/A
Search Thai Lion Air flights
Thai AirAsiaCheapest$187Average$359FlexibilityNo cancel feeOn-time87%
Search Thai AirAsia flights
Thai AirwaysCheapest$421Average$647FlexibilityNo cancel feeOn-time77%
Search Thai Airways flights

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights from Suvarnabhumi to Kathmandu?

Cheapflights makes it easy to find Suvarnabhumi to Kathmandu flights by helping our users search from 900+ travel sites for deals. We also provide you with filters for cabin, price, airline, airports, number of stops, and many more to narrow down that perfect flight.

Why should you use Cheapflights to find cheap flight tickets from Suvarnabhumi to Kathmandu?

By finding flights from multiple airlines and providers at completely no cost, Cheapflights helps millions of users like you annually find the best flights to Kathmandu from Suvarnabhumi.

Can Cheapflights find flights from Suvarnabhumi to Kathmandu with no change fees?

Need flexible booking options for your flight to Kathmandu from Suvarnabhumi? Don’t worry, Cheapflights have you covered. Use our search filter to only show flights with no change fees.

Can Cheapflights notify me if prices for flights from Suvarnabhumi to Kathmandu become cheaper?

Not ready to book yet? You can track prices for flights from Suvarnabhumi to Kathmandu on Cheapflights with our Price Alert feature and get notified when better prices are available.

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