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Cheap flights from Bangkok Suvarnabhumi Airport to Kathmandu from $380

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 10/10. Fares are subject to change and may not be available on all flights or dates of travel.
BKK — KTM
15 Jul — 22 Jul1
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 15 June 2026.

Thu 16/713:45
BKK
-
KTM
1 stop10h 00m
Multiple Airlines
Sun 19/713:15
KTM
-
BKK
1 stop22h 15m
Multiple Airlines
Deal found 11/6$557
Thu 10/915:15
BKK
-
KTM
1 stop23h 40m
Air India
Tue 29/906:30
KTM
-
BKK
1 stop12h 40m
Air India
Deal found 13/6$618
Thu 10/910:15
BKK
-
KTM
Nonstop3h 25m
Multiple Airlines
Tue 29/906:30
KTM
-
BKK
1 stop9h 10m
Multiple Airlines
Deal found 13/6$620
Thu 10/910:15
BKK
-
KTM
Nonstop3h 25m
Thai Airways
Mon 28/900:25
KTM
-
BKK
Nonstop3h 30m
Thai Airways
Deal found 13/6$621
Thu 16/721:15
BKK
-
KTM
Nonstop3h 25m
Thai Airways
Sun 19/713:30
KTM
-
BKK
Nonstop3h 30m
Thai Airways
Deal found 11/6$661
Sat 20/610:15
BKK
-
KTM
Nonstop3h 25m
Multiple Airlines
Fri 10/706:30
KTM
-
BKK
1 stop12h 40m
Multiple Airlines
Deal found 13/6$679
Sat 20/610:15
BKK
-
KTM
Nonstop3h 25m
Thai Airways
Fri 10/713:30
KTM
-
BKK
Nonstop3h 30m
Thai Airways
Deal found 12/6$689

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 15 June 2026.

Round-trip from

$557

One-way from

$380

Popular in

June

Cheapest in

January

Average price

$566

Good one-way deal

$398 or less
SriLankan Airlines
  • SriLankan Airlines
  • 16/7-19/7
  • 2 total stops
  • 32h 15m total
  • Bangkok to Kathmandu
Search Deals
Air India
  • Air India
  • 10/10
  • 2 total stops
  • 16h 45m total
  • Bangkok to Kathmandu
Search Deals
Highest demand for flights based on searches. 8% potential increase in price ($50 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($21 potential savings vs. average return price).
Search Deals
Average for round-trip flights in June 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 15 June 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
Fastest return journey

BangkokKathmandu

BKK - KTM

BKKKTM

Bangkok Suvarnabhumi

Sun 20/9

06:00-21:45

1 stop17h 00m

Kathmandu Tribhuvan

Sat 26/9

13:00-23:05

1 stop8h 50m

$949

BangkokKathmandu

BKK - KTM

BKKKTM

Bangkok Suvarnabhumi

Fri 10/7

03:00-15:35

2 stops37h 50m

Kathmandu Tribhuvan

Sat 18/7

16:35-00:40

3 stops30h 50m

$991

BangkokKathmandu

BKK - KTM

BKKKTM

Bangkok Suvarnabhumi

Wed 1/7

13:20-15:35

1 stop27h 30m

Kathmandu Tribhuvan

Sun 19/7

16:35-12:30

3 stops42h 40m

$1,002

BangkokKathmandu

BKK - KTM

BKKKTM

Bangkok Suvarnabhumi

Sun 25/10

18:40-21:45

1 stop28h 20m

Kathmandu Tribhuvan

Thu 29/10

22:45-13:25

1 stop13h 25m

$1,007

BangkokKathmandu

BKK - KTM

BKKKTM

Bangkok Suvarnabhumi

Thu 16/7

11:50-15:35

2 stops53h 00m

Kathmandu Tribhuvan

Sun 19/7

16:35-15:50

3 stops46h 00m

$1,008

BangkokKathmandu

BKK - KTM

BKKKTM

Bangkok Suvarnabhumi

Wed 9/9

13:35-15:35

2 stops27h 15m

Kathmandu Tribhuvan

Thu 17/9

16:35-21:55

2 stops28h 05m

$1,010

BangkokKathmandu

BKK - KTM

BKKKTM

Bangkok Suvarnabhumi

Sun 12/7

16:50-15:35

3 stops48h 00m

Kathmandu Tribhuvan

Sun 19/7

16:35-21:55

2 stops28h 05m

$1,010

BangkokKathmandu

BKK - KTM

BKKKTM

Bangkok Suvarnabhumi

Tue 14/7

13:45-15:35

2 stops51h 05m

Kathmandu Tribhuvan

Tue 21/7

16:35-15:50

3 stops46h 00m

$1,042

BangkokKathmandu

BKK - KTM

BKKKTM

Bangkok Suvarnabhumi

Fri 21/8

13:35-15:35

2 stops27h 15m

Kathmandu Tribhuvan

Sun 6/9

16:35-18:10

2 stops24h 20m

$1,045

BangkokKathmandu

BKK - KTM

BKKKTM

Bangkok Suvarnabhumi

Sun 1/11

15:55-16:00

1 stop25h 20m

Kathmandu Tribhuvan

Sat 28/11

17:00-22:35

1 stop28h 20m

$1,068

Flights are sorted by cheapest return flights first.

Deals found on 11/6

Showing 1-10 of 18 resultsSorted by cheapest first
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?

The best time to book flights from Bangkok Suvarnabhumi Airport to Kathmandu is 89 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 $346). Flying from Bangkok Suvarnabhumi Airport to Kathmandu in June is currently the most expensive (average of $566). 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 15 June 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 15 June 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
243 reviews
Check prices

Boarding

7.3

Comfort

6.7

Overall

7.4

Entertainment

5.5

Food

6.2

Crew

7.9

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
243 reviews
Thai AirAsia
7.4
Good
243 reviews
Check prices

Boarding

7.3

Comfort

6.7

Overall

7.4

Entertainment

5.5

Food

6.2

Crew

7.9

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
7.1
Good
45 reviews
Thai AirAsia
7.4
Good
243 reviews
Check prices

Boarding

7.3

Comfort

6.7

Overall

7.4

Entertainment

5.5

Food

6.2

Crew

7.9

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 17h. 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 $161. Another airline that can offer you cheap pricing is Thai AirAsia. These flights start at 61% 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 $114. Thai Lion Air flights start at $122 while deals on Nepal Airlines start at $261 one-way.

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

    On average you can expect to pay $409 for a flight from Bangkok Suvarnabhumi Airport to Kathmandu. The cheapest flight overall is $336 while the most popular route, (Bangkok Suvarnabhumi - Kathmandu Tribhuvan) is currently priced at $516.

  • 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 $346). Flying from Bangkok Suvarnabhumi Airport to Kathmandu in June is currently the most expensive (average of $566). 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 15 June 2026.
AirlineCheapestAverageFlexibilityOn-time
Thai Lion AirCheapest$161Average$391FlexibilityNo cancel feeOn-timeN/A
Search Thai Lion Air flights
Thai AirAsiaCheapest$176Average$337FlexibilityNo 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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