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Cheap flights from Kathmandu to Bangkok Suvarnabhumi Airport from ₹ 13,342

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 1/1. Fares are subject to change and may not be available on all flights or dates of travel.
KTM — BKK
1 Jan — 8 Jan1
1 adult
1 adult, Economy, 0 bags

Find 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 2 December 2025.

Wed 31/1213:40KTM - BKK
1 stop15h 25mSriLankan Airlines
Wed 7/115:20BKK - KTM
1 stop21h 45mSriLankan Airlines
Deal found 30/11₹ 21,759
Wed 31/1211:10KTM - BKK
Nonstop3h 20mNepal Airlines
Wed 7/116:45BKK - KTM
Nonstop3h 30mNepal Airlines
Deal found 30/11₹ 25,430
Mon 8/1211:10KTM - BKK
Nonstop3h 20mNepal Airlines
Mon 15/1216:45BKK - KTM
Nonstop3h 30mNepal Airlines
Deal found 30/11₹ 25,609
Mon 15/1211:10KTM - BKK
Nonstop3h 20mNepal Airlines
Mon 22/1216:45BKK - KTM
Nonstop3h 30mNepal Airlines
Deal found 29/11₹ 27,311
Sun 14/1200:25KTM - BKK
Nonstop3h 30mThai Airways
Mon 22/1210:15BKK - KTM
Nonstop3h 25mThai Airways
Deal found 29/11₹ 31,072
Tue 30/1200:25KTM - BKK
Nonstop3h 30mThai Airways
Wed 7/110:15BKK - KTM
Nonstop3h 25mThai Airways
Deal found 30/11₹ 32,146
Mon 15/1221:05KTM - BKK
1 stop9h 30mAir India
Mon 22/1215:10BKK - KTM
1 stop10h 20mAir India
Deal found 29/11₹ 33,847
Mon 8/1221:05KTM - BKK
1 stop9h 30mAir India
Mon 15/1208:50BKK - KTM
1 stop8h 55mAir India
Deal found 30/11₹ 34,743
Thu 4/1210:05KTM - BKK
1 stop9h 00mAir India
Thu 11/1208:50BKK - KTM
1 stop8h 55mAir India
Deal found 30/11₹ 35,817
Mon 15/1211:10KTM - BKK
Nonstop3h 20mMultiple Airlines
Mon 22/1218:40BKK - KTM
1 stop18h 35mMultiple Airlines
Deal found 29/11₹ 36,981
Mon 8/1211:10KTM - BKK
Nonstop3h 20mMultiple Airlines
Mon 15/1208:50BKK - KTM
1 stop8h 35mMultiple Airlines
Deal found 30/11₹ 37,429
Sun 7/1200:25KTM - BKK
Nonstop3h 30mThai Airways
Mon 15/1210:15BKK - KTM
Nonstop3h 25mThai Airways
Deal found 30/11₹ 38,414

Cheap 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 2 December 2025.

Round-trip from

₹ 21,759

One-way from

₹ 13,342

Popular in

April

Cheapest in

July

Average price

₹ 28,385

Good round-trip deal

₹ 31,167 or less

Good one-way deal

₹ 21,915 or less
SriLankan Airlines
  • SriLankan Airlines
  • 31/12-7/1
  • 2 total stops
  • 37h 10m total
  • Kathmandu to Bangkok
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SriLankan Airlines
  • SriLankan Airlines
  • 1/1
  • 1 total stop
  • 10h 55m total
  • Kathmandu to Bangkok
Search Deals
Highest demand for flights based on searches. 9% potential increase in price (₹ 268,501 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (₹ 62,094 potential savings vs. average return price).
Search Deals
Average for round-trip flights in December 2025
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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 2 December 2025.
Use the filters below to find and compare flights from Kathmandu to Bangkok Suvarnabhumi Airport that are best for you.

Fly from

Kathmandu

Fly to

Suvarnabhumi

Route

Depart

Return

Price

KathmanduBangkok

KTM - BKK

KTMBKK

Kathmandu Tribhuvan

Sat 24/1

13:30-18:15

Nonstop3h 30m

Bangkok Suvarnabhumi

Fri 30/1

21:15-23:25

Nonstop3h 25m

₹ 32,415

KathmanduBangkok

KTM - BKK

KTMBKK

Kathmandu Tribhuvan

Sun 25/1

12:50-12:35

1 stop22h 30m

Bangkok Suvarnabhumi

Sun 1/2

10:15-12:25

Nonstop3h 25m

₹ 35,817

KathmanduBangkok

KTM - BKK

KTMBKK

Kathmandu Tribhuvan

Mon 2/2

10:05-20:20

1 stop9h 00m

Bangkok Suvarnabhumi

Fri 6/2

08:50-20:05

1 stop12h 30m

₹ 36,355

KathmanduBangkok

KTM - BKK

KTMBKK

Kathmandu Tribhuvan

Mon 16/3

07:35-20:20

1 stop11h 30m

Bangkok Suvarnabhumi

Fri 20/3

22:20-20:05

1 stop23h 00m

₹ 36,355

KathmanduBangkok

KTM - BKK

KTMBKK

Kathmandu Tribhuvan

Sun 1/2

00:25-05:10

Nonstop3h 30m

Bangkok Suvarnabhumi

Fri 6/2

10:15-12:25

Nonstop3h 25m

₹ 36,981

KathmanduBangkok

KTM - BKK

KTMBKK

Kathmandu Tribhuvan

Wed 21/1

13:00-14:10

1 stop23h 55m

Bangkok Suvarnabhumi

Mon 26/1

08:45-21:30

1 stop14h 00m

₹ 39,489

KathmanduBangkok

KTM - BKK

KTMBKK

Kathmandu Tribhuvan

Wed 31/12

11:10-15:45

Nonstop3h 20m

₹ 15,670

KathmanduBangkok

KTM - BKK

KTMBKK

Kathmandu Tribhuvan

Mon 15/12

17:10-19:50

1 stop25h 25m

₹ 18,088

KathmanduBangkok

KTM - BKK

KTMBKK

Kathmandu Tribhuvan

Mon 15/12

11:10-15:45

Nonstop3h 20m

₹ 18,356

KathmanduBangkok

KTM - BKK

KTMBKK

Kathmandu Tribhuvan

Mon 5/1

11:10-15:45

Nonstop3h 20m

₹ 19,341

Flights are sorted by cheapest return flights first.

Deals found on 2/12

Showing 1-10 of 18 results
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?

Use this chart to determine the optimal time to book a return flight from Kathmandu to Suvarnabhumi. Price data was last updated on 28 November 2025.

The best time to book flights from Kathmandu to Bangkok Suvarnabhumi Airport is 84 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, August is the cheapest month in which you can book a flight from Kathmandu to Bangkok Suvarnabhumi Airport (average of ₹ 11,372). Flying from Kathmandu to Bangkok Suvarnabhumi Airport in April is currently the most expensive (average of ₹ 19,162). 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 2 December 2025.

It’s typically best to fly out from Kathmandu to Bangkok Suvarnabhumi Airport in the afternoon. Doing so could potentially save you 53% on the flight price compared to flying in the evening, which is usually more expensive.

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 2 December 2025.
Read reviews from past customers who have flown with Thai Airways and Thai AirAsia 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
7.8
Good
362 reviews
Check prices

Crew

8.3

Entertainment

6.9

Overall

7.8

Boarding

7.8

Food

7.3

Comfort

7.6

Reviews

1 / 18
10.0
Excellent

Joe,Jun 2025

BKK - TPE

The flight was very comfortable, and I really appreciated that each seat had an electric outlet to charge devices. The staff was great.
Thai Airways
7.8
Good
362 reviews
Thai Airways
7.8
Good
362 reviews
Check prices

Crew

8.3

Entertainment

6.9

Overall

7.8

Boarding

7.8

Food

7.3

Comfort

7.6

Reviews

1 / 18
10.0
Excellent

Joe,Jun 2025

BKK - TPE

The flight was very comfortable, and I really appreciated that each seat had an electric outlet to charge devices. The staff was great.
Thai AirAsia
7.4
Good
222 reviews
Thai Airways
7.8
Good
362 reviews
Check prices

Crew

8.3

Entertainment

6.9

Overall

7.8

Boarding

7.8

Food

7.3

Comfort

7.6

Reviews

1 / 18
10.0
Excellent

Joe,Jun 2025

BKK - TPE

The flight was very comfortable, and I really appreciated that each seat had an electric outlet to charge devices. The staff was great.

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 4 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 ₹ 15,658. Additional round-trip tickets that might be worth considering are offered by Thai Lion Air and Nepal Airlines, with the lowest prices starting at ₹ 18,433 and ₹ 24,085, respectively. Thai AirAsia is currently priced 42% 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 SriLankan Airlines. According to our data, you can fly for as low as ₹ 13,342. Users have also found prices from ₹ 18,177 and ₹ 18,356 on IndiGo 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 ₹ 45,770, our data shows the cheapest flight currently is ₹ 16,388. When looking at the most popular route, (Kathmandu Tribhuvan - Bangkok Suvarnabhumi), you can expect to pay ₹ 22,565 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, August is the cheapest month in which you can book a flight from Kathmandu to Bangkok Suvarnabhumi Airport (average of ₹ 11,372). Flying from Kathmandu to Bangkok Suvarnabhumi Airport in April is currently the most expensive (average of ₹ 19,162). 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
Chonburi
Ko Samet

Browse thousands of different options on Cheapflights for your next trip

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Top 4 airlines flying from Kathmandu to Suvarnabhumi

Discover the top 4 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 2 December 2025.
AirlineCheapestAverageFlexibilityOn-time
Thai AirAsiaCheapest₹ 15,658Average₹ 23,345FlexibilityNo cancel feeOn-time87%
Search Thai AirAsia flights
Thai Lion AirCheapest₹ 18,433Average₹ 22,954FlexibilityNo cancel feeOn-timeN/A
Search Thai Lion Air flights
Nepal AirlinesCheapest₹ 24,085Average₹ 28,376FlexibilityNo cancel feeOn-timeN/A
Search Nepal Airlines flights
Thai AirwaysCheapest₹ 29,162Average₹ 39,250FlexibilityNo 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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