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Suvarnabhumi

$138+ 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 2/19. Fares are subject to change and may not be available on all flights or dates of travel.
KTM — BKK
feb. 20 — feb. 271
vie. 2/20
vie. 2/27
1 adult, Economy
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Cheapflights Tip: The best prices from Kathmandu Tribhuvan to Bangkok Suvarnabhumi are usually found in July or August, booked 84 days in advance, depart on a Monday or Wednesday and return on a Wednesday

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 enero 21, 2026.

This Trip.com deal was found by Cheapflights users on 1/21. 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.
dom. 3/112:50 pm
KTM
-
BKK
1 stop22h 30m
SriLankan Airlines
mié. 4/83:20 pm
BKK
-
KTM
1 stop22h 10m
SriLankan Airlines
Deal found 1/21$224
This Trip.com deal was found by Cheapflights users on 1/21. 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.
mié. 2/181:40 pm
KTM
-
BKK
1 stop21h 40m
SriLankan Airlines
mié. 2/259:00 am
BKK
-
KTM
1 stop28h 05m
SriLankan Airlines
Deal found 1/21$236
This FlightHub deal was found by Cheapflights users on 1/20. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom. 2/2212:50 pm
KTM
-
BKK
1 stop22h 30m
SriLankan Airlines
mié. 3/43:20 pm
BKK
-
KTM
1 stop21h 45m
SriLankan Airlines
Deal found 1/20$238
This Expedia deal was found by Cheapflights users on 1/19. 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.
mié. 2/251:40 pm
KTM
-
BKK
1 stop21h 40m
SriLankan Airlines
mié. 3/43:20 pm
BKK
-
KTM
1 stop21h 45m
SriLankan Airlines
Deal found 1/19$241
This Trip.com deal was found by Cheapflights users on 1/21. 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.
lun. 3/1612:50 pm
KTM
-
BKK
1 stop22h 30m
SriLankan Airlines
mié. 3/253:20 pm
BKK
-
KTM
1 stop21h 45m
SriLankan Airlines
Deal found 1/21$255
This Expedia deal was found by Cheapflights users on 1/21. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 2/2612:50 pm
KTM
-
BKK
1 stop22h 30m
SriLankan Airlines
dom. 3/11:55 pm
BKK
-
KTM
1 stop23h 10m
SriLankan Airlines
Deal found 1/21$272
This Expedia deal was found by Cheapflights users on 1/19. 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.
jue. 3/2612:50 pm
KTM
-
BKK
1 stop22h 30m
SriLankan Airlines
mar. 3/311:55 pm
BKK
-
KTM
1 stop24h 00m
SriLankan Airlines
Deal found 1/19$290
This FlightHub deal was found by Cheapflights users on 1/19. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 1/2111:10 am
KTM
-
BKK
Nonstop3h 20m
Nepal Airlines
lun. 1/264:45 pm
BKK
-
KTM
Nonstop3h 30m
Nepal Airlines
Deal found 1/19$296
This SmartFares deal was found by Cheapflights users on 1/21. 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 SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 3/251:30 pm
KTM
-
BKK
Nonstop3h 30m
Thai Airways
dom. 3/2910:15 am
BKK
-
KTM
Nonstop3h 25m
Thai Airways
Deal found 1/21$308

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 enero 21, 2026.

Most accurate provider

OneTravel
3 stars

Most trusted provider

OneTravel
3 stars

Round-trip from

$224
(Trip.com)

One-way from

$138
(Kiwi.com)

Popular in

April

Cheapest in

July

Average price

$295

Good round-trip deal

$350 or less

Good one-way deal

$330 or less
Provider with most accurate pricing for Kathmandu Tribhuvan-Bangkok Suvarnabhumi flight deals.
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Provider most trusted by Cheapflights users for Kathmandu Tribhuvan-Bangkok Suvarnabhumi flights.
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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. 14% potential increase in price ($48 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($9 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in January 2026
Search Deals
Price to beat on a round-trip flight from Kathmandu Tribhuvan to Bangkok Suvarnabhumi.
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Price to beat on a one-way flight from Kathmandu Tribhuvan to Bangkok Suvarnabhumi.
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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 enero 21, 2026.
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

jue. 2/26

12:50 pm-12:35 pm

1 stop22h 30m

Bangkok Suvarnabhumi

dom. 3/1

1:55 pm-11:50 am

1 stop23h 10m

$272

KathmanduBangkok

KTM - BKK

KTMBKK

Kathmandu Tribhuvan

mié. 3/25

1:40 pm-12:35 pm

1 stop21h 40m

Bangkok Suvarnabhumi

mar. 3/31

1:55 pm-12:40 pm

1 stop24h 00m

$294

KathmanduBangkok

KTM - BKK

KTMBKK

Kathmandu Tribhuvan

mié. 2/11

1:30 pm-6:15 pm

Nonstop3h 30m

Bangkok Suvarnabhumi

dom. 2/15

10:15 am-12:25 pm

Nonstop3h 25m

$308

KathmanduBangkok

KTM - BKK

KTMBKK

Kathmandu Tribhuvan

mar. 3/24

12:25 am-5:10 am

Nonstop3h 30m

Bangkok Suvarnabhumi

lun. 3/30

9:15 pm-11:25 pm

Nonstop3h 25m

$308

KathmanduBangkok

KTM - BKK

KTMBKK

Kathmandu Tribhuvan

dom. 3/8

12:25 am-5:10 am

Nonstop3h 30m

Bangkok Suvarnabhumi

lun. 3/16

9:15 pm-11:25 pm

Nonstop3h 25m

$308

KathmanduBangkok

KTM - BKK

KTMBKK

Kathmandu Tribhuvan

mié. 2/18

1:30 pm-6:15 pm

Nonstop3h 30m

Bangkok Suvarnabhumi

lun. 3/9

9:15 pm-11:25 pm

Nonstop3h 25m

$308

KathmanduBangkok

KTM - BKK

KTMBKK

Kathmandu Tribhuvan

jue. 2/12

1:30 pm-6:15 pm

Nonstop3h 30m

Bangkok Suvarnabhumi

mié. 2/18

10:15 am-12:25 pm

Nonstop3h 25m

$316

KathmanduBangkok

KTM - BKK

KTMBKK

Kathmandu Tribhuvan

mar. 6/16

10:45 pm-1:25 pm

1 stop13h 25m

Bangkok Suvarnabhumi

jue. 6/25

6:40 pm-12:00 pm

1 stop18h 35m

$322

KathmanduBangkok

KTM - BKK

KTMBKK

Kathmandu Tribhuvan

lun. 2/2

1:30 pm-6:15 pm

Nonstop3h 30m

Bangkok Suvarnabhumi

jue. 2/5

10:15 am-12:25 pm

Nonstop3h 25m

$325

KathmanduBangkok

KTM - BKK

KTMBKK

Kathmandu Tribhuvan

vie. 2/27

1:30 pm-6:15 pm

Nonstop3h 30m

Bangkok Suvarnabhumi

sáb. 3/14

9:15 pm-11:25 pm

Nonstop3h 25m

$350

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/21

Showing 1-10 of 24 results
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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 January.
ProviderPrice AccuracyTrust Score*
FlightHubPrice Accuracy3 starsTrust Score*1 star
eDreamsPrice Accuracy3 starsTrust Score*3 stars
Trip.comPrice Accuracy2 starsTrust Score*3 stars
OneTravelPrice Accuracy3 starsTrust Score*3 stars
MytripPrice Accuracy3 starsTrust Score*3 stars
SmartFaresPrice Accuracy1 starTrust Score*1 star
Justfly.comPrice Accuracy3 starsTrust Score*3 stars
CheapOairPrice Accuracy3 starsTrust Score*3 stars
GotogatePrice Accuracy3 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 OneTravel to be most consistent on Cheapflights vs. OneTravel Users can find the same prices on Kathmandu-Bangkok Suvarnabhumi Airport flight deals on Cheapflights vs. OneTravel >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 OneTravel the most. OneTravel 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 January 16, 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, August is the cheapest month in which you can book a flight from Kathmandu to Bangkok Suvarnabhumi Airport (average of $127). Flying from Kathmandu to Bangkok Suvarnabhumi Airport in April is currently the most expensive (average of $216). 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 enero 21, 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.

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 enero 21, 2026.
Get a feel of what it's like to fly with Thai Airways, Thai AirAsia, and Thai 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
379 reviews

Boarding

7.9

Overall

7.8

Entertainment

6.8

Comfort

7.6

Crew

8.3

Food

7.3

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
379 reviews
Thai Airways
7.8
Good
379 reviews

Boarding

7.9

Overall

7.8

Entertainment

6.8

Comfort

7.6

Crew

8.3

Food

7.3

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
230 reviews
Thai Airways
7.8
Good
379 reviews

Boarding

7.9

Overall

7.8

Entertainment

6.8

Comfort

7.6

Crew

8.3

Food

7.3

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
6.8
Okay
37 reviews
Thai Airways
7.8
Good
379 reviews

Boarding

7.9

Overall

7.8

Entertainment

6.8

Comfort

7.6

Crew

8.3

Food

7.3

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
Air India
5.5
Fair
2,977 reviews
Thai Airways
7.8
Good
379 reviews

Boarding

7.9

Overall

7.8

Entertainment

6.8

Comfort

7.6

Crew

8.3

Food

7.3

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 5 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 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 $163 and $187 round-trip. Thai Lion Air is priced at 59% 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 ($102), Thai Lion Air ($114), and Nepal Airlines ($158).

  • 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 $349, our data indicates the cheapest price to be $205. The most popular route (Kathmandu Tribhuvan - Bangkok Suvarnabhumi), is priced around $196.

  • 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, August is the cheapest month in which you can book a flight from Kathmandu to Bangkok Suvarnabhumi Airport (average of $127). Flying from Kathmandu to Bangkok Suvarnabhumi Airport in April is currently the most expensive (average of $216). 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
Sattahip
Chonburi
Kanchanaburi
Cha-am
Ko Samet
Pak Chong
Ko Lan

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for Kathmandu to Suvarnabhumi

See prices for flight routes from nearby airports that may be better suited for you.
Kathmandu to Don Mueang Intl flights

Top 5 airlines flying from Kathmandu to Suvarnabhumi

Discover the top 5 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 enero 21, 2026.
AirlineCheapestAverageFlexibilityOn-time
Thai Lion AirCheapest$118Average$247FlexibilityNo cancel feeOn-timeN/A
Thai AirAsiaCheapest$163Average$253FlexibilityNo cancel feeOn-time87%
Nepal AirlinesCheapest$187Average$319FlexibilityNo cancel feeOn-timeN/A
Air IndiaCheapest$280Average$412FlexibilityNo cancel feeOn-timeN/A
Thai AirwaysCheapest$326Average$380FlexibilityNo cancel feeOn-time77%

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