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Cheap flights from Bangkok Suvarnabhumi Airport to Kathmandu from $303

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 14/7. Fares are subject to change and may not be available on all flights or dates of travel.
BKK — KTM
22 May — 29 May1
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 22 April 2026.

Thu 4/616:45
BKK
-
KTM
2 stops28h 40m
Air India
Thu 11/606:45
KTM
-
BKK
1 stop8h 55m
Air India
Deal found 20/4$570
Sun 28/616:45
BKK
-
KTM
2 stops17h 25m
Multiple Airlines
Mon 6/713:15
KTM
-
BKK
1 stop22h 15m
Multiple Airlines
Deal found 19/4$573
Sat 27/616:45
BKK
-
KTM
1 stop22h 25m
Multiple Airlines
Mon 6/713:15
KTM
-
BKK
1 stop22h 15m
Multiple Airlines
Deal found 19/4$582
Tue 7/721:05
BKK
-
KTM
2 stops16h 50m
Multiple Airlines
Wed 22/706:45
KTM
-
BKK
1 stop8h 55m
Multiple Airlines
Deal found 20/4$584
Thu 9/722:25
BKK
-
KTM
1 stop16h 30m
Air India
Sat 18/721:10
KTM
-
BKK
1 stop15h 50m
Air India
Deal found 17/4$592
Sat 16/517:55
BKK
-
KTM
1 stop7h 25m
Air India
Sat 23/510:05
KTM
-
BKK
1 stop9h 05m
Air India
Deal found 18/4$613

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 22 April 2026.

Round-trip from

$570

One-way from

$303

Popular in

October

Cheapest in

January

Average price

$429
Air India
  • Air India
  • 4/6-11/6
  • 3 total stops
  • 37h 35m total
  • Bangkok to Kathmandu
Search Deals
China Southern
  • China Southern
  • 14/7
  • 1 total stop
  • 9h 45m total
  • Bangkok to Kathmandu
Search Deals
Highest demand for flights based on searches. 7% potential increase in price ($46 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease ($9 potential savings vs. average return price).
Search Deals
Average for round-trip flights in April 2026
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 22 April 2026.
Use the filters below to find and compare flights from Bangkok Suvarnabhumi Airport to Kathmandu that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

BangkokKathmandu

BKK - KTM

BKKKTM

Bangkok Suvarnabhumi

Fri 12/6

18:40-12:00

1 stop18h 35m

Kathmandu Tribhuvan

Tue 30/6

22:45-16:20

1 stop16h 20m

$874

BangkokKathmandu

BKK - KTM

BKKKTM

Bangkok Suvarnabhumi

Sat 23/5

07:50-15:35

1 stop9h 00m

Kathmandu Tribhuvan

Sat 30/5

16:35-15:50

3 stops46h 00m

$884

BangkokKathmandu

BKK - KTM

BKKKTM

Bangkok Suvarnabhumi

Sun 14/6

07:50-15:35

1 stop9h 00m

Kathmandu Tribhuvan

Tue 30/6

16:35-19:50

1 stop26h 00m

$892

BangkokKathmandu

BKK - KTM

BKKKTM

Bangkok Suvarnabhumi

Tue 9/6

21:55-15:35

2 stops42h 55m

Kathmandu Tribhuvan

Tue 30/6

16:35-19:50

1 stop26h 00m

$905

BangkokKathmandu

BKK - KTM

BKKKTM

Bangkok Suvarnabhumi

Sat 13/6

07:50-15:35

1 stop9h 00m

Kathmandu Tribhuvan

Sat 27/6

16:35-01:00

3 stops31h 10m

$906

BangkokKathmandu

BKK - KTM

BKKKTM

Bangkok Suvarnabhumi

Sun 28/6

21:55-15:35

3 stops42h 55m

Kathmandu Tribhuvan

Thu 2/7

16:35-12:20

1 stop18h 30m

$906

BangkokKathmandu

BKK - KTM

BKKKTM

Bangkok Suvarnabhumi

Mon 29/6

11:50-15:35

2 stops29h 00m

Kathmandu Tribhuvan

Thu 2/7

16:35-19:50

1 stop26h 00m

$906

BangkokKathmandu

BKK - KTM

BKKKTM

Bangkok Suvarnabhumi

Sat 16/5

13:20-15:35

1 stop27h 30m

Kathmandu Tribhuvan

Sat 23/5

16:35-01:55

3 stops32h 05m

$919

BangkokKathmandu

BKK - KTM

BKKKTM

Bangkok Suvarnabhumi

Sat 9/5

15:55-15:35

1 stop24h 55m

Kathmandu Tribhuvan

Sun 17/5

16:35-22:15

1 stop28h 25m

$920

BangkokKathmandu

BKK - KTM

BKKKTM

Bangkok Suvarnabhumi

Wed 1/7

13:35-15:35

2 stops27h 15m

Kathmandu Tribhuvan

Sat 4/7

16:35-14:55

1 stop21h 05m

$929

Flights are sorted by cheapest return flights first.

Deals found on 21/4

Showing 1-10 of 23 resultsSorted by cheapest first
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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 17 April 2026.

The best time to book flights from Bangkok Suvarnabhumi Airport to Kathmandu is 90 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, January is the cheapest month in which you can book a flight from Bangkok Suvarnabhumi Airport to Kathmandu (average of $341). Flying from Bangkok Suvarnabhumi Airport to Kathmandu in October is currently the most expensive (average of $438). 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 22 April 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 22 April 2026.
Check out reviews from past customers who have flown with Thai AirAsia and Thai 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 AirAsia
7.4
Good
240 reviews
Check prices

Comfort

6.8

Crew

7.9

Entertainment

5.5

Boarding

7.4

Overall

7.4

Food

6.2

Reviews

1 / 5
8.0
Excellent

marc,Nov 2025

DMK - DAD

Upon check in they wanted to charge me extra for extra 1 kilo Poor challenge. You advertise to get people on your airline then you challenge them Wrong move
Thai AirAsia
7.4
Good
240 reviews
Thai AirAsia
7.4
Good
240 reviews
Check prices

Comfort

6.8

Crew

7.9

Entertainment

5.5

Boarding

7.4

Overall

7.4

Food

6.2

Reviews

1 / 5
8.0
Excellent

marc,Nov 2025

DMK - DAD

Upon check in they wanted to charge me extra for extra 1 kilo Poor challenge. You advertise to get people on your airline then you challenge them Wrong move
Thai Lion Air
7.0
Good
44 reviews
Thai AirAsia
7.4
Good
240 reviews
Check prices

Comfort

6.8

Crew

7.9

Entertainment

5.5

Boarding

7.4

Overall

7.4

Food

6.2

Reviews

1 / 5
8.0
Excellent

marc,Nov 2025

DMK - DAD

Upon check in they wanted to charge me extra for extra 1 kilo Poor challenge. You advertise to get people on your airline then you challenge them Wrong move

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 2 different airlines.

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

    Departing from Bangkok Suvarnabhumi Airport to Kathmandu will take you 9h. Airlines will cover a distance of 2227 km. Both multi-stop and direct flights can be found to your destination and back.

  • 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 $158. Another airline that can offer you cheap pricing is Thai AirAsia. These flights start at 58% 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 $112. Thai Lion Air flights start at $120 while deals on Thai Airways start at $314 one-way.

  • 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, January is the cheapest month in which you can book a flight from Bangkok Suvarnabhumi Airport to Kathmandu (average of $341). Flying from Bangkok Suvarnabhumi Airport to Kathmandu in October is currently the most expensive (average of $438). 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

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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 2 airlines flying from Suvarnabhumi to Kathmandu

Discover the top 2 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 22 April 2026.
AirlineCheapestAverageFlexibilityOn-time
Thai Lion AirCheapest$158Average$378FlexibilityNo cancel feeOn-timeN/A
Search Thai Lion Air flights
Thai AirAsiaCheapest$183Average$352FlexibilityNo cancel feeOn-time87%
Search Thai AirAsia 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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