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Cheap flights from Kathmandu to Bangkok Suvarnabhumi Airport from ₹ 21,383

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 30/6. Fares are subject to change and may not be available on all flights or dates of travel.
KTM — BKK
15 Jun — 22 Jun1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Kathmandu to Suvarnabhumi

Enter your travel dates to find the best prices.

Cheapest flights from Kathmandu to Suvarnabhumi
Explore the most affordable flight options available from Kathmandu to Suvarnabhumi. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 16 May 2026.

Wed 17/613:40
KTM
-
BKK
1 stop21h 50m
SriLankan Airlines
Wed 24/615:20
BKK
-
KTM
1 stop22h 10m
SriLankan Airlines
Deal found 14/5₹ 30,397
Wed 26/813:40
KTM
-
BKK
1 stop21h 50m
SriLankan Airlines
Sun 30/807:45
BKK
-
KTM
1 stop29h 45m
SriLankan Airlines
Deal found 15/5₹ 34,712
Wed 24/613:40
KTM
-
BKK
1 stop15h 20m
SriLankan Airlines
Tue 30/607:45
BKK
-
KTM
1 stop30h 10m
SriLankan Airlines
Deal found 14/5₹ 35,863
Wed 26/806:30
KTM
-
BKK
1 stop9h 10m
Air India
Sun 30/807:30
BKK
-
KTM
1 stop10h 15m
Air India
Deal found 16/5₹ 37,013
Wed 20/511:10
KTM
-
BKK
Nonstop3h 20m
Nepal Airlines
Wed 27/516:45
BKK
-
KTM
Nonstop3h 30m
Nepal Airlines
Deal found 12/5₹ 37,685
Wed 3/611:10
KTM
-
BKK
Nonstop3h 20m
Nepal Airlines
Wed 17/616:45
BKK
-
KTM
Nonstop3h 30m
Nepal Airlines
Deal found 13/5₹ 37,876
Wed 15/713:40
KTM
-
BKK
1 stop21h 50m
SriLankan Airlines
Tue 21/713:55
BKK
-
KTM
1 stop24h 00m
SriLankan Airlines
Deal found 12/5₹ 38,739
Fri 22/511:10
KTM
-
BKK
Nonstop3h 20m
Nepal Airlines
Fri 29/516:45
BKK
-
KTM
Nonstop3h 30m
Nepal Airlines
Deal found 15/5₹ 39,315
Wed 17/611:10
KTM
-
BKK
Nonstop3h 20m
Nepal Airlines
Wed 24/616:45
BKK
-
KTM
Nonstop3h 30m
Nepal Airlines
Deal found 14/5₹ 39,890

Find flight deals from Kathmandu to Suvarnabhumi

Discover tips and strategies to find the most affordable flight options for your journey from Kathmandu (KTM) to Suvarnabhumi (BKK). 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 16 May 2026.

Round-trip from

₹ 30,397

One-way from

₹ 21,383

Popular in

May

Cheapest in

January

Average price

₹ 39,027

Good one-way deal

₹ 39,577 or less
SriLankan Airlines
  • SriLankan Airlines
  • 17/6-24/6
  • 2 total stops
  • 44h 00m total
  • Kathmandu to Bangkok
Search Deals
Air India
  • Air India
  • 30/6
  • 1 total stop
  • 11h 35m total
  • Kathmandu to Bangkok
Search Deals
Highest demand for flights based on searches. 14% potential increase in price (₹ 430,562 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease (₹ 104,119 potential savings vs. average return price).
Search Deals
Average for round-trip flights in May 2026
Search Deals
Price to beat on a one-way flight from Kathmandu Tribhuvan to Bangkok Suvarnabhumi.
Search Deals

Cheapflights Fare Finder

 
Customise your flight search to find flights from Kathmandu to Suvarnabhumi 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 454,620 searches. Data last updated 16 May 2026.
Use the filters below to find and compare flights from Kathmandu to Bangkok Suvarnabhumi Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

KathmanduBangkok

KTM - BKK

KTMBKK

Kathmandu Tribhuvan

Wed 15/7

06:30-06:30

1 stop22h 45m

Bangkok Suvarnabhumi

Tue 21/7

22:25-00:05

1 stop26h 55m

₹ 38,739
Fastest return journey

KathmanduBangkok

KTM - BKK

KTMBKK

Kathmandu Tribhuvan

Wed 26/8

13:30-18:15

Nonstop3h 30m

Bangkok Suvarnabhumi

Sun 30/8

10:15-12:25

Nonstop3h 25m

₹ 43,726

KathmanduBangkok

KTM - BKK

KTMBKK

Kathmandu Tribhuvan

Tue 7/7

22:45-13:25

1 stop13h 25m

Bangkok Suvarnabhumi

Mon 13/7

19:45-12:00

1 stop17h 30m

₹ 48,904

KathmanduBangkok

KTM - BKK

KTMBKK

Kathmandu Tribhuvan

Mon 6/7

22:45-10:15

1 stop10h 15m

Bangkok Suvarnabhumi

Mon 13/7

19:45-12:00

1 stop17h 30m

₹ 49,000

KathmanduBangkok

KTM - BKK

KTMBKK

Kathmandu Tribhuvan

Thu 2/7

22:45-08:55

2 stops32h 55m

Bangkok Suvarnabhumi

Thu 16/7

14:15-21:45

1 stop8h 45m

₹ 57,917

KathmanduBangkok

KTM - BKK

KTMBKK

Kathmandu Tribhuvan

Sun 12/7

22:45-08:55

2 stops32h 55m

Bangkok Suvarnabhumi

Fri 31/7

19:45-12:00

1 stop17h 30m

₹ 58,109

KathmanduBangkok

KTM - BKK

KTMBKK

Kathmandu Tribhuvan

Thu 9/7

16:35-22:15

1 stop28h 25m

Bangkok Suvarnabhumi

Wed 15/7

19:15-15:35

2 stops21h 35m

₹ 59,164

KathmanduBangkok

KTM - BKK

KTMBKK

Kathmandu Tribhuvan

Sun 7/6

16:35-14:55

1 stop21h 05m

Bangkok Suvarnabhumi

Mon 22/6

20:50-15:35

1 stop20h 00m

₹ 59,835

KathmanduBangkok

KTM - BKK

KTMBKK

Kathmandu Tribhuvan

Sat 30/5

16:35-19:50

1 stop26h 00m

Bangkok Suvarnabhumi

Fri 5/6

13:35-15:35

2 stops27h 15m

₹ 60,410

KathmanduBangkok

KTM - BKK

KTMBKK

Kathmandu Tribhuvan

Thu 4/6

16:35-14:55

1 stop21h 05m

Bangkok Suvarnabhumi

Sun 21/6

19:15-15:35

2 stops45h 35m

₹ 62,136

Flights are sorted by cheapest return flights first.

Deals found on 12/5

Showing 1-10 of 21 resultsSorted by cheapest first
1
2
3

Best time to book a flight from Kathmandu to Suvarnabhumi

Have a flexible travel schedule? Discover the best time to fly to Suvarnabhumi from Kathmandu 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 Kathmandu to Bangkok Suvarnabhumi Airport

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

The best time to book flights from Kathmandu to Bangkok Suvarnabhumi Airport is 65 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 Kathmandu to Bangkok Suvarnabhumi Airport?

Currently, January is the cheapest month in which you can book a flight from Kathmandu to Bangkok Suvarnabhumi Airport (average of ₹ 24,356). Flying from Kathmandu to Bangkok Suvarnabhumi Airport in May is currently the most expensive (average of ₹ 39,027). 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 KTM to BKK?

Find hourly flight availability from Kathmandu to Suvarnabhumi. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 16 May 2026.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Kathmandu to Bangkok Suvarnabhumi Airport as you normally would.

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

Reviews of airlines servicing Suvarnabhumi

Get insights into the airlines that provide service to Suvarnabhumi. 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 Suvarnabhumi. Reviews last updated 16 May 2026.
Read reviews from past customers who have flown with Thai Airways,Thai AirAsia, andThai Lion Air from Kathmandu to Bangkok Suvarnabhumi Airport. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Thai Airways
7.9
Good
401 reviews
Check prices

Food

7.4

Entertainment

6.9

Crew

8.4

Overall

7.9

Boarding

7.9

Comfort

7.7

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
7.9
Good
401 reviews
Thai Airways
7.9
Good
401 reviews
Check prices

Food

7.4

Entertainment

6.9

Crew

8.4

Overall

7.9

Boarding

7.9

Comfort

7.7

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
7.4
Good
242 reviews
Thai Airways
7.9
Good
401 reviews
Check prices

Food

7.4

Entertainment

6.9

Crew

8.4

Overall

7.9

Boarding

7.9

Comfort

7.7

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
45 reviews
Thai Airways
7.9
Good
401 reviews
Check prices

Food

7.4

Entertainment

6.9

Crew

8.4

Overall

7.9

Boarding

7.9

Comfort

7.7

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 Kathmandu to Suvarnabhumi. 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 from for flights from Kathmandu to Bangkok Suvarnabhumi?

    Located just 4.1 km from the city centre, Kathmandu Tribhuvan is the airport most travellers will use when flying to Bangkok Suvarnabhumi from Kathmandu. Booking flights from Tribhuvan (KTM) to Bangkok Suvarnabhumi should be relatively easy as there is 1 daily outbound flight to Bangkok Suvarnabhumi from 3 different airlines.

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

    Departing from Kathmandu to Bangkok Suvarnabhumi Airport will take you 3h 30m. The distance between Kathmandu and Bangkok Suvarnabhumi Airport is about 2227 km. When browsing for deals, the options you’ll see will be for both direct flights and flights with stops.

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

    Flying on Thai AirAsia is currently your cheapest option to Bangkok Suvarnabhumi Airport, with prices starting at ₹ 16,063. Additional round-trip tickets that might be worth considering are offered by Thai Lion Air and Thai Airways, with the lowest prices starting at ₹ 17,109 and ₹ 29,845, respectively. Thai AirAsia is currently priced 40% below the average price you’ll pay for this route.

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

    For one-way options, check prices for Thai AirAsia. According to our data, you can fly for as low as ₹ 9,213. Users have also found prices from ₹ 10,530 and ₹ 14,549 on Thai Lion Air and Nepal Airlines, respectively.

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

    While on average a flight from Kathmandu to Bangkok Suvarnabhumi Airport is generally ₹ 93,803, our data shows the cheapest flight currently is ₹ 25,597. When looking at the most popular route, (Kathmandu Tribhuvan - Bangkok Suvarnabhumi), you can expect to pay ₹ 41,520 for that flight.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Kathmandu to Suvarnabhumi 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 Kathmandu to Bangkok Suvarnabhumi Airport?

    Currently, January is the cheapest month in which you can book a flight from Kathmandu to Bangkok Suvarnabhumi Airport (average of ₹ 24,356). Flying from Kathmandu to Bangkok Suvarnabhumi Airport in May is currently the most expensive (average of ₹ 39,027). 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 Bangkok Suvarnabhumi Airport?

Book flights to Bangkok Suvarnabhumi Airport if you plan to visit one of these locations
Ko Samet
Chonburi

Browse thousands of different options on Cheapflights for your next trip

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Top 3 airlines flying from Kathmandu to Suvarnabhumi

Discover the top 3 airlines that operate flights from Kathmandu to Suvarnabhumi. 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 454,620 searches. Data last updated 16 May 2026.
AirlineCheapestAverageFlexibilityOn-time
Thai AirAsiaCheapest₹ 16,063Average₹ 23,668FlexibilityNo cancel feeOn-time87%
Search Thai AirAsia flights
Thai Lion AirCheapest₹ 17,109Average₹ 21,768FlexibilityNo cancel feeOn-timeN/A
Search Thai Lion Air flights
Thai AirwaysCheapest₹ 29,845Average₹ 35,254FlexibilityNo cancel feeOn-time77%
Search Thai Airways flights

Fly with Cheapflights

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

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

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

Yes, we can. To see specific flights from Kathmandu to Suvarnabhumi with no change fees, users can toggle flexible booking options after using the search form above to find flights.

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

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

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