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Suvarnabhumi

$170+ Cheap flights from Kathmandu (KTM) to Suvarnabhumi (BKK)

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 6/25. Fares are subject to change and may not be available on all flights or dates of travel.
KTM — BKK
Apr 22 — Apr 291
Wed 4/22
Wed 4/29
1 adult, Economy
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Find cheap flights from Kathmandu to Suvarnabhumi with Cheapflights

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Cheapflights Tip: The best prices from Kathmandu Tribhuvan to Bangkok Suvarnabhumi are usually found in July or January, booked 84 days in advance, depart on a Wednesday or Monday and return on a Tuesday

Cheap flight deals from Kathmandu to Suvarnabhumi

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 March 23, 2026.

This Booking.com deal was found by Cheapflights users on 3/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/111:10 am
KTM
-
BKK
Nonstop3h 20m
Nepal Airlines
Mon 6/84:45 pm
BKK
-
KTM
Nonstop3h 30m
Nepal Airlines
Deal found 3/21$281
This Expedia deal was found by Cheapflights users on 3/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 6/41:15 pm
KTM
-
BKK
1 stop22h 15m
SriLankan Airlines
Sun 6/71:55 pm
BKK
-
KTM
1 stop23h 35m
SriLankan Airlines
Deal found 3/19$291
This Trip.com deal was found by Cheapflights users on 3/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/61:15 pm
KTM
-
BKK
1 stop22h 15m
SriLankan Airlines
Sun 8/97:45 am
BKK
-
KTM
1 stop29h 45m
SriLankan Airlines
Deal found 3/19$299
This Trip.com deal was found by Cheapflights users on 3/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/811:10 am
KTM
-
BKK
Nonstop3h 20m
Nepal Airlines
Fri 5/224:45 pm
BKK
-
KTM
Nonstop3h 30m
Nepal Airlines
Deal found 3/23$301
This Trip.com deal was found by Cheapflights users on 3/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/2211:10 am
KTM
-
BKK
Nonstop3h 20m
Nepal Airlines
Mon 6/14:45 pm
BKK
-
KTM
Nonstop3h 30m
Nepal Airlines
Deal found 3/22$303
This Trip.com deal was found by Cheapflights users on 3/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/2512:50 pm
KTM
-
BKK
1 stop22h 30m
SriLankan Airlines
Sat 10/311:55 pm
BKK
-
KTM
1 stop23h 10m
SriLankan Airlines
Deal found 3/21$307
This Booking.com deal was found by Cheapflights users on 3/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/2211:10 am
KTM
-
BKK
Nonstop3h 20m
Nepal Airlines
Mon 5/254:45 pm
BKK
-
KTM
Nonstop3h 30m
Nepal Airlines
Deal found 3/19$326
This Trip.com deal was found by Cheapflights users on 3/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/411:10 am
KTM
-
BKK
Nonstop3h 20m
Nepal Airlines
Mon 5/184:45 pm
BKK
-
KTM
Nonstop3h 30m
Nepal Airlines
Deal found 3/23$332
This Booking.com deal was found by Cheapflights users on 3/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 3/2711:10 am
KTM
-
BKK
Nonstop3h 20m
Nepal Airlines
Mon 6/14:45 pm
BKK
-
KTM
Nonstop3h 30m
Nepal Airlines
Deal found 3/21$334
This Booking.com deal was found by Cheapflights users on 3/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/1011:10 am
KTM
-
BKK
Nonstop3h 20m
Nepal Airlines
Fri 4/244:45 pm
BKK
-
KTM
Nonstop3h 30m
Nepal Airlines
Deal found 3/18$335
This Booking.com deal was found by Cheapflights users on 3/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/111:10 am
KTM
-
BKK
Nonstop3h 20m
Nepal Airlines
Fri 5/84:45 pm
BKK
-
KTM
Nonstop3h 30m
Nepal Airlines
Deal found 3/18$337

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 March 23, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$281
(Booking.com)

One-way from

$170
(Trip.com)

Popular in

April

Cheapest in

July

Average price

$311

Good round-trip deal

$384 or less

Good one-way deal

$409 or less
Provider with most accurate pricing for Kathmandu Tribhuvan-Bangkok Suvarnabhumi flight deals.
Search Deals
Provider most trusted by Cheapflights users for Kathmandu Tribhuvan-Bangkok Suvarnabhumi flights.
Search Deals
From Kathmandu Tribhuvan to Bangkok Suvarnabhumi
Search Deals
One-way flight from Kathmandu Tribhuvan to Bangkok Suvarnabhumi
Search Deals
Highest demand for flights based on searches. 15% potential increase in price ($51 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($11 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in March 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.
Search Deals

Cheapflights Fare Finder

 
Customize 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 2,558,603 searches. Data last updated March 23, 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 round-trip

KathmanduBangkok

KTM - BKK

KTMBKK

Kathmandu Tribhuvan

Wed 5/13

5:30 pm-7:40 am

1 stop12h 55m

Bangkok Suvarnabhumi

Wed 5/20

3:15 pm-11:00 pm

1 stop9h 00m

$386

KathmanduBangkok

KTM - BKK

KTMBKK

Kathmandu Tribhuvan

Fri 4/10

6:45 am-8:25 pm

1 stop12h 25m

Bangkok Suvarnabhumi

Mon 4/13

3:15 pm-11:00 pm

1 stop9h 00m

$430
Quickest round-trip

KathmanduBangkok

KTM - BKK

KTMBKK

Kathmandu Tribhuvan

Fri 4/17

11:10 am-3:45 pm

Nonstop3h 20m

Bangkok Suvarnabhumi

Mon 4/20

4:45 pm-7:00 pm

Nonstop3h 30m

$433

KathmanduBangkok

KTM - BKK

KTMBKK

Kathmandu Tribhuvan

Sun 6/14

10:50 pm-5:15 pm

1 stop17h 10m

Bangkok Suvarnabhumi

Thu 6/18

1:35 pm-9:30 pm

1 stop9h 10m

$460

KathmanduBangkok

KTM - BKK

KTMBKK

Kathmandu Tribhuvan

Mon 6/1

10:05 am-8:25 pm

1 stop9h 05m

Bangkok Suvarnabhumi

Tue 6/16

4:45 pm-8:10 pm

2 stops28h 40m

$471

KathmanduBangkok

KTM - BKK

KTMBKK

Kathmandu Tribhuvan

Mon 6/8

6:45 am-4:55 pm

1 stop8h 55m

Bangkok Suvarnabhumi

Mon 6/22

4:45 pm-11:00 pm

2 stops31h 30m

$477

KathmanduBangkok

KTM - BKK

KTMBKK

Kathmandu Tribhuvan

Fri 4/17

6:45 am-4:55 pm

1 stop8h 55m

Bangkok Suvarnabhumi

Mon 4/20

10:25 pm-9:50 am

2 stops12h 40m

$488

KathmanduBangkok

KTM - BKK

KTMBKK

Kathmandu Tribhuvan

Fri 8/14

10:45 pm-4:20 pm

1 stop16h 20m

Bangkok Suvarnabhumi

Sun 8/16

6:40 pm-12:00 pm

1 stop18h 35m

$489

KathmanduBangkok

KTM - BKK

KTMBKK

Kathmandu Tribhuvan

Sun 4/5

6:45 am-4:55 pm

1 stop8h 55m

Bangkok Suvarnabhumi

Mon 4/13

10:25 pm-9:50 am

2 stops12h 40m

$498
Cheapest one-way
Quickest one-way

KathmanduBangkok

KTM - BKK

KTMBKK

Kathmandu Tribhuvan

Sun 7/12

10:45 pm-10:15 am

1 stop10h 15m

$314

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/21

Showing 1-10 of 19 resultsSorted by cheapest first
1
2

Compare providers for flights from Kathmandu to Suvarnabhumi

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Kathmandu to Suvarnabhumi in March.
ProviderPrice AccuracyTrust Score*
FlightHubPrice Accuracy3 starsTrust Score*3 stars
eDreamsPrice Accuracy3 starsTrust Score*3 stars
Kiwi.comPrice Accuracy3 starsTrust Score*3 stars
Trip.comPrice Accuracy1 starTrust Score*3 stars
MytripPrice Accuracy2 starsTrust Score*3 stars
SmartFaresPrice Accuracy1 starTrust Score*1 star
OneTravelPrice Accuracy3 starsTrust Score*3 stars
Justfly.comPrice Accuracy3 starsTrust Score*3 stars
CheapOairPrice Accuracy3 starsTrust Score*3 stars
GotogatePrice Accuracy2 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Kathmandu-Bangkok Suvarnabhumi Airport flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Kathmandu-Bangkok Suvarnabhumi Airport flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Kathmandu-Bangkok Suvarnabhumi Airport flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Kathmandu-Bangkok Suvarnabhumi Airport flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Kathmandu-Bangkok Suvarnabhumi Airport flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

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 round-trip 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 round-trip flight from Kathmandu to Suvarnabhumi. Price data was last updated on March 13, 2026.

The price you pay for your flight from Kathmandu to Bangkok Suvarnabhumi Airport may vary depending on when you book. For the best chance of a lower fare, look to book 84 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

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 $120). Flying from Kathmandu to Bangkok Suvarnabhumi Airport in May is currently the most expensive (average of $230). 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 March 23, 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 to fly round-trip from Kathmandu to Bangkok Suvarnabhumi Airport?

The best insider tips for Kathmandu to Bangkok Suvarnabhumi Airport flights

AI-powered summary based on content written by travel experts. AI can make mistakes.
Cheapflights partnered with top experts to bring you the best recommendations for your Kathmandu to Bangkok Suvarnabhumi Airport trip
Our travel experts
Robert Schrader

Robert Schrader

Expert on BKK

One of the web's original travel bloggers, Robert launched his first site Leave Your Daily Hell in 2009. Since then, he's expanded into destination niche sites (one each for Japan, Thailand and Taiwan), in addition to having written for the inflight magazines of Singapore Airlines and Korean Air. Overall, he's visited nearly 100 countries, and flies business as often as possible.

Read more
Sharad Ranabhat

Sharad Ranabhat

Expert on KTM

Sharad, a Nepal-based aviation journalist, is passionate about uncovering the latest in airline news and airport reviews. When he's not diving into the world of aviation, you’ll find him exploring new destinations and sharing stories that connect and inspire.

Read more

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 March 23, 2026.
Get a feel of what it's like to fly with Thai Airways,Thai AirAsia, andThai Lion Air from Kathmandu to Bangkok Suvarnabhumi Airport by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Thai Airways
7.8
Good
394 reviews

Overall

7.8

Comfort

7.6

Entertainment

6.9

Food

7.4

Crew

8.4

Boarding

7.9

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
394 reviews
Thai Airways
7.8
Good
394 reviews

Overall

7.8

Comfort

7.6

Entertainment

6.9

Food

7.4

Crew

8.4

Boarding

7.9

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
7.5
Good
237 reviews
Thai Airways
7.8
Good
394 reviews

Overall

7.8

Comfort

7.6

Entertainment

6.9

Food

7.4

Crew

8.4

Boarding

7.9

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
394 reviews

Overall

7.8

Comfort

7.6

Entertainment

6.9

Food

7.4

Crew

8.4

Boarding

7.9

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?

    If you book a flight to Bangkok Suvarnabhumi from Kathmandu, you will be flying from Tribhuvan, which is the city’s only airport. Kathmandu Tribhuvan (KTM) is located 2.5 mi from the center of Kathmandu. There are 2 flights from Tribhuvan to Bangkok Suvarnabhumi per day 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 20m. The distance between Kathmandu and Bangkok Suvarnabhumi Airport is about 1384 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

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

    Our cheapest airline available from Kathmandu to Bangkok Suvarnabhumi Airport is Thai Lion Air. Our recent data shows that you can find tickets from as low as $118 on this airline. Additional options worth looking into are Thai AirAsia and Nepal Airlines, starting at $156 and $187 round-trip. Thai Lion Air is priced at 58% lower than the current average price of a flight leaving 3 months from now.

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

    The cheapest airlines for a one-way flight from Kathmandu to Bangkok Suvarnabhumi Airport are Thai AirAsia ($91), Thai Lion Air ($116), and SriLankan Airlines ($138).

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

    Looking for the cheapest flight from Kathmandu to Bangkok Suvarnabhumi Airport? While on average our users pay $497, our data indicates the cheapest price to be $207. The most popular route (Kathmandu Tribhuvan - Bangkok Suvarnabhumi), is priced around $169.

  • 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 vacation 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 $120). Flying from Kathmandu to Bangkok Suvarnabhumi Airport in May is currently the most expensive (average of $230). 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

Traveling to a place near Bangkok Suvarnabhumi Airport?

Book flights to Bangkok Suvarnabhumi Airport if you plan to visit one of these locations
Kanchanaburi
Chonburi
Cha-am
Ko Samet
Sattahip
Pak Chong
Ko Lan

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 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 2,558,603 searches. Data last updated March 23, 2026.
AirlineCheapestAverageFlexibilityOn-time
Thai Lion AirCheapest$118Average$240FlexibilityNo cancel feeOn-timeN/A
Thai AirAsiaCheapest$156Average$250FlexibilityNo cancel feeOn-time87%
Nepal AirlinesCheapest$187Average$300FlexibilityNo cancel feeOn-timeN/A
Thai AirwaysCheapest$307Average$361FlexibilityNo cancel feeOn-time77%

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