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Cheap flights from Kathmandu to Bangkok Suvarnabhumi Airport from ₹ 21,083

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 19/7. Fares are subject to change and may not be available on all flights or dates of travel.
KTM — BKK
29 Jul — 5 Aug1
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 29 June 2026.

Thu 30/713:30
KTM
-
BKK
Nonstop3h 30m
Thai Airways
Thu 20/810:15
BKK
-
KTM
Nonstop3h 25m
Thai Airways
Deal found 25/6₹ 38,119
Sun 5/723:40
KTM
-
BKK
Nonstop3h 30m
Thai Airways
Thu 16/720:50
BKK
-
KTM
Nonstop3h 25m
Thai Airways
Deal found 28/6₹ 38,214
Wed 15/723:40
KTM
-
BKK
Nonstop3h 30m
Thai Airways
Tue 21/710:15
BKK
-
KTM
Nonstop3h 25m
Thai Airways
Deal found 27/6₹ 38,967
Wed 26/813:40
KTM
-
BKK
1 stop21h 50m
SriLankan Airlines
Sun 30/813:55
BKK
-
KTM
1 stop23h 35m
SriLankan Airlines
Deal found 25/6₹ 39,625
Wed 2/1214:55
KTM
-
BKK
1 stop15h 40m
Air India
Fri 11/1208:50
BKK
-
KTM
1 stop12h 30m
Air India
Deal found 24/6₹ 42,167
Wed 2/1213:30
KTM
-
BKK
Nonstop3h 30m
Thai Airways
Fri 11/1210:15
BKK
-
KTM
Nonstop3h 25m
Thai Airways
Deal found 24/6₹ 42,261
Mon 6/723:40
KTM
-
BKK
Nonstop3h 30m
Multiple Airlines
Mon 13/708:20
BKK
-
KTM
1 stop15h 25m
Multiple Airlines
Deal found 25/6₹ 43,014

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 29 June 2026.

Round-trip from

₹ 38,119

One-way from

₹ 21,083

Popular in

May

Cheapest in

March

Average price

₹ 35,955

Good round-trip deal

₹ 37,056 or less

Good one-way deal

₹ 30,985 or less
Thai Airways
  • Thai Airways
  • 30/7-20/8
  • Nonstop
  • 6h 55m total
  • Kathmandu to Bangkok
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Thai Airways
  • Thai Airways
  • 19/7
  • Nonstop
  • 3h 30m total
  • Kathmandu to Bangkok
Search Deals
Highest demand for flights based on searches. 18% potential increase in price (₹ 618,530 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease (₹ 95,573 potential savings vs. average return price).
Search Deals
Average for round-trip flights in June 2026
Search Deals
Price to beat on a round-trip flight from Kathmandu Tribhuvan to Bangkok Suvarnabhumi.
Search Deals
Price to beat on a one-way flight from Kathmandu Tribhuvan to Bangkok Suvarnabhumi.
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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 29 June 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

18:00-15:00

1 stop19h 45m

Bangkok Suvarnabhumi

Tue 21/7

16:15-17:00

1 stop26h 00m

₹ 44,802

KathmanduBangkok

KTM - BKK

KTMBKK

Kathmandu Tribhuvan

Mon 6/7

06:30-06:30

1 stop22h 45m

Bangkok Suvarnabhumi

Mon 13/7

07:30-06:35

1 stop24h 20m

₹ 48,473

KathmanduBangkok

KTM - BKK

KTMBKK

Kathmandu Tribhuvan

Thu 13/8

16:35-14:55

1 stop21h 05m

Bangkok Suvarnabhumi

Wed 19/8

15:55-15:35

1 stop24h 55m

₹ 53,932
Fastest return journey

KathmanduBangkok

KTM - BKK

KTMBKK

Kathmandu Tribhuvan

Sun 16/8

16:35-12:20

1 stop18h 30m

Bangkok Suvarnabhumi

Wed 19/8

02:25-15:35

1 stop14h 25m

₹ 53,932

KathmanduBangkok

KTM - BKK

KTMBKK

Kathmandu Tribhuvan

Mon 31/8

22:45-08:55

2 stops32h 55m

Bangkok Suvarnabhumi

Fri 4/9

19:45-12:00

1 stop17h 30m

₹ 54,873

KathmanduBangkok

KTM - BKK

KTMBKK

Kathmandu Tribhuvan

Sat 15/8

16:35-18:10

2 stops24h 20m

Bangkok Suvarnabhumi

Wed 19/8

20:50-15:35

1 stop20h 00m

₹ 64,379

KathmanduBangkok

KTM - BKK

KTMBKK

Kathmandu Tribhuvan

Thu 30/7

16:35-14:55

1 stop21h 05m

Bangkok Suvarnabhumi

Wed 19/8

19:15-15:35

2 stops21h 35m

₹ 65,321

KathmanduBangkok

KTM - BKK

KTMBKK

Kathmandu Tribhuvan

Sun 2/8

16:35-18:10

2 stops24h 20m

Bangkok Suvarnabhumi

Fri 21/8

20:50-15:35

1 stop20h 00m

₹ 65,321
Cheapest one-way

KathmanduBangkok

KTM - BKK

KTMBKK

Kathmandu Tribhuvan

Tue 28/7

16:35-14:55

1 stop21h 05m

₹ 30,778

KathmanduBangkok

KTM - BKK

KTMBKK

Kathmandu Tribhuvan

Thu 2/7

16:35-01:55

3 stops32h 05m

₹ 33,225

Flights are sorted by cheapest return flights first.

Deals found on 27/6

Showing 1-10 of 17 resultsSorted by cheapest first
1
2

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, March is the cheapest month in which you can book a flight from Kathmandu to Bangkok Suvarnabhumi Airport (average of ₹ 24,283). Flying from Kathmandu to Bangkok Suvarnabhumi Airport in May is currently the most expensive (average of ₹ 39,249). 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 29 June 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 29 June 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
407 reviews
Check prices

Boarding

8.0

Food

7.4

Comfort

7.7

Entertainment

6.9

Overall

7.9

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
7.9
Good
407 reviews
Thai Airways
7.9
Good
407 reviews
Check prices

Boarding

8.0

Food

7.4

Comfort

7.7

Entertainment

6.9

Overall

7.9

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
7.4
Good
243 reviews
Thai Airways
7.9
Good
407 reviews
Check prices

Boarding

8.0

Food

7.4

Comfort

7.7

Entertainment

6.9

Overall

7.9

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
45 reviews
Thai Airways
7.9
Good
407 reviews
Check prices

Boarding

8.0

Food

7.4

Comfort

7.7

Entertainment

6.9

Overall

7.9

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 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 are 2 daily outbound flights 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 19h 45m. 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 ₹ 15,939. Additional round-trip tickets that might be worth considering are offered by Thai Lion Air and Thai Airways, with the lowest prices starting at ₹ 17,873 and ₹ 29,295, respectively. Thai AirAsia is currently priced 43% 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 Lion Air. According to our data, you can fly for as low as ₹ 10,336. Users have also found prices from ₹ 11,353 and ₹ 14,281 on Thai AirAsia 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 ₹ 37,280, our data shows the cheapest flight currently is ₹ 29,647. When looking at the most popular route, (Kathmandu Tribhuvan - Bangkok Suvarnabhumi), you can expect to pay ₹ 32,284 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, March is the cheapest month in which you can book a flight from Kathmandu to Bangkok Suvarnabhumi Airport (average of ₹ 24,283). Flying from Kathmandu to Bangkok Suvarnabhumi Airport in May is currently the most expensive (average of ₹ 39,249). 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 29 June 2026.
AirlineCheapestAverageFlexibilityOn-time
Thai AirAsiaCheapest₹ 15,939Average₹ 23,484FlexibilityNo cancel feeOn-time87%
Search Thai AirAsia flights
Thai Lion AirCheapest₹ 17,873Average₹ 21,367FlexibilityNo cancel feeOn-timeN/A
Search Thai Lion Air flights
Thai AirwaysCheapest₹ 29,295Average₹ 34,715FlexibilityNo 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?

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 Suvarnabhumi from Kathmandu.

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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