Find flights
Deals
When to book
Airlines
FAQs

Cheap flights from Kathmandu to Bangkok Suvarnabhumi Airport from ₹ 18,395

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 24/8. Fares are subject to change and may not be available on all flights or dates of travel.
KTM — BKK
1 May — 8 May1
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 1 April 2026.

Fri 19/611:10
KTM
-
BKK
Nonstop3h 20m
Nepal Airlines
Fri 26/616:45
BKK
-
KTM
Nonstop3h 30m
Nepal Airlines
Deal found 30/3₹ 27,687
Fri 1/511:10
KTM
-
BKK
Nonstop3h 20m
Nepal Airlines
Fri 8/516:45
BKK
-
KTM
Nonstop3h 30m
Nepal Airlines
Deal found 28/3₹ 31,535
Tue 12/518:00
KTM
-
BKK
1 stop19h 45m
Biman Bangladesh
Fri 22/516:15
BKK
-
KTM
1 stop20h 35m
Biman Bangladesh
Deal found 31/3₹ 35,477
Mon 13/410:05
KTM
-
BKK
1 stop29h 35m
Air India
Wed 15/422:25
BKK
-
KTM
1 stop9h 25m
Air India
Deal found 29/3₹ 35,758
Fri 17/410:05
KTM
-
BKK
1 stop9h 05m
Air India
Fri 24/415:15
BKK
-
KTM
1 stop10h 05m
Air India
Deal found 28/3₹ 36,603
Wed 22/410:05
KTM
-
BKK
1 stop26h 55m
Multiple Airlines
Fri 24/419:00
BKK
-
KTM
1 stop17h 45m
Multiple Airlines
Deal found 31/3₹ 37,072
Mon 20/410:05
KTM
-
BKK
1 stop26h 55m
Air India
Sun 26/422:25
BKK
-
KTM
1 stop9h 25m
Air India
Deal found 31/3₹ 37,354
Mon 27/418:00
KTM
-
BKK
1 stop19h 45m
Biman Bangladesh
Wed 13/516:15
BKK
-
KTM
1 stop20h 35m
Biman Bangladesh
Deal found 31/3₹ 37,635
Sun 19/410:05
KTM
-
BKK
1 stop19h 10m
Multiple Airlines
Sat 25/415:55
BKK
-
KTM
1 stop20h 50m
Multiple Airlines
Deal found 31/3₹ 37,729
Wed 26/814:40
KTM
-
BKK
1 stop15h 45m
Air India
Sun 30/822:25
BKK
-
KTM
1 stop16h 30m
Air India
Deal found 1/4₹ 38,105
Mon 27/406:30
KTM
-
BKK
2 stops31h 55m
Multiple Airlines
Wed 13/513:45
BKK
-
KTM
1 stop10h 00m
Multiple Airlines
Deal found 31/3₹ 38,292

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 1 April 2026.

Round-trip from

₹ 27,687

One-way from

₹ 18,395

Popular in

April

Cheapest in

July

Average price

₹ 37,072

Good one-way deal

₹ 45,974 or less
Nepal Airlines
  • Nepal Airlines
  • 19/6-26/6
  • Nonstop
  • 6h 50m total
  • Kathmandu to Bangkok
Search Deals
SriLankan Airlines
  • SriLankan Airlines
  • 24/8
  • 1 total stop
  • 22h 15m total
  • Kathmandu to Bangkok
Search Deals
Highest demand for flights based on searches. 15% potential increase in price (₹ 457,970 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease (₹ 88,447 potential savings vs. average return price).
Search Deals
Average for round-trip flights in April 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 1 April 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

Mon 29/6

22:45-10:15

1 stop10h 15m

Bangkok Suvarnabhumi

Fri 3/7

18:40-12:00

1 stop18h 35m

₹ 49,649

KathmanduBangkok

KTM - BKK

KTMBKK

Kathmandu Tribhuvan

Tue 25/8

22:45-13:25

1 stop13h 25m

Bangkok Suvarnabhumi

Mon 28/9

19:20-21:45

2 stops27h 40m

₹ 49,836
Fastest return journey

KathmanduBangkok

KTM - BKK

KTMBKK

Kathmandu Tribhuvan

Sat 22/8

13:00-23:05

1 stop8h 50m

Bangkok Suvarnabhumi

Mon 28/9

06:00-21:45

1 stop17h 00m

₹ 50,024

KathmanduBangkok

KTM - BKK

KTMBKK

Kathmandu Tribhuvan

Fri 21/8

13:00-17:20

1 stop27h 05m

Bangkok Suvarnabhumi

Sat 26/9

19:20-21:45

2 stops27h 40m

₹ 50,118

KathmanduBangkok

KTM - BKK

KTMBKK

Kathmandu Tribhuvan

Thu 2/7

16:35-01:35

2 stops31h 45m

Bangkok Suvarnabhumi

Sun 12/7

07:50-15:35

1 stop9h 00m

₹ 60,254

KathmanduBangkok

KTM - BKK

KTMBKK

Kathmandu Tribhuvan

Sun 9/8

16:35-19:50

1 stop26h 00m

Bangkok Suvarnabhumi

Thu 20/8

02:35-15:35

2 stops38h 15m

₹ 68,701

KathmanduBangkok

KTM - BKK

KTMBKK

Kathmandu Tribhuvan

Sun 10/5

16:35-01:35

2 stops31h 45m

Bangkok Suvarnabhumi

Sun 17/5

19:10-15:35

3 stops45h 40m

₹ 71,235

KathmanduBangkok

KTM - BKK

KTMBKK

Kathmandu Tribhuvan

Sat 25/4

16:35-18:10

2 stops24h 20m

Bangkok Suvarnabhumi

Fri 1/5

03:00-15:35

2 stops37h 50m

₹ 72,831

KathmanduBangkok

KTM - BKK

KTMBKK

Kathmandu Tribhuvan

Sun 9/8

16:35-14:55

1 stop21h 05m

Bangkok Suvarnabhumi

Thu 20/8

13:35-15:35

3 stops51h 15m

₹ 74,614
Cheapest one-way

KathmanduBangkok

KTM - BKK

KTMBKK

Kathmandu Tribhuvan

Fri 24/4

10:05-15:40

2 stops28h 20m

₹ 27,968

Flights are sorted by cheapest return flights first.

Deals found on 31/3

Showing 1-10 of 19 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?

Use this chart to determine the optimal time to book a return flight from Kathmandu to Suvarnabhumi. Price data was last updated on 13 March 2026.

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, February is the cheapest month in which you can book a flight from Kathmandu to Bangkok Suvarnabhumi Airport (average of ₹ 11,262). Flying from Kathmandu to Bangkok Suvarnabhumi Airport in May is currently the most expensive (average of ₹ 21,586). 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 1 April 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 1 April 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
7.8
Good
395 reviews
Check prices

Boarding

7.9

Crew

8.4

Overall

7.8

Entertainment

6.9

Food

7.4

Comfort

7.6

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
7.8
Good
395 reviews
Thai Airways
7.8
Good
395 reviews
Check prices

Boarding

7.9

Crew

8.4

Overall

7.8

Entertainment

6.9

Food

7.4

Comfort

7.6

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
238 reviews
Thai Airways
7.8
Good
395 reviews
Check prices

Boarding

7.9

Crew

8.4

Overall

7.8

Entertainment

6.9

Food

7.4

Comfort

7.6

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
43 reviews
Thai Airways
7.8
Good
395 reviews
Check prices

Boarding

7.9

Crew

8.4

Overall

7.8

Entertainment

6.9

Food

7.4

Comfort

7.6

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 10h 15m. The distance between Kathmandu and Bangkok Suvarnabhumi Airport is about 2227 km.

  • 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 ₹ 15,497. Additional round-trip tickets that might be worth considering are offered by Thai Lion Air and Thai Airways, with the lowest prices starting at ₹ 16,745 and ₹ 29,211, 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 Thai AirAsia. According to our data, you can fly for as low as ₹ 9,017. Users have also found prices from ₹ 10,306 and ₹ 14,240 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 ₹ 64,189, our data shows the cheapest flight currently is ₹ 17,175. When looking at the most popular route, (Kathmandu Tribhuvan - Bangkok Suvarnabhumi), you can expect to pay ₹ 18,395 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, February is the cheapest month in which you can book a flight from Kathmandu to Bangkok Suvarnabhumi Airport (average of ₹ 11,262). Flying from Kathmandu to Bangkok Suvarnabhumi Airport in May is currently the most expensive (average of ₹ 21,586). 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

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

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 1 April 2026.
AirlineCheapestAverageFlexibilityOn-time
Thai AirAsiaCheapest₹ 15,497Average₹ 23,122FlexibilityNo cancel feeOn-time87%
Search Thai AirAsia flights
Thai Lion AirCheapest₹ 16,745Average₹ 21,453FlexibilityNo cancel feeOn-timeN/A
Search Thai Lion Air flights
Thai AirwaysCheapest₹ 29,211Average₹ 34,599FlexibilityNo cancel feeOn-time77%
Search Thai Airways 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 Kathmandu to Suvarnabhumi?

900+ travel sites are searched through when a user searches for a flight using Cheapflights. From the search interface, users can use filters to choose airlines, airports, flight times, cabin classes and more to their preference. Book your flight to Suvarnabhumi from Kathmandu today with Cheapflights!

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.

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book With Flexibility

Our users can plan ahead with confidence and find flights with no change fees.

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.