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£141 Cheap Flights from Kathmandu (KTM) to Bangkok (BKK)

View £141 flight on Thu, 15 Oct 2026Opens in a new window

Popular airlines from Tribhuvan Intl. Airport (KTM) to Suvarnabhumi International Airport (BKK)

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Cheap Flights from Kathmandu (KTM) to Bangkok (BKK)

Prices were available within the past 7 days and start at £141 for one-way flights and £253 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

SriLankan Airlines
Mon, 10 Aug - Wed, 26 Aug
KTM
Kathmandu
BKK
Bangkok
£253 Return, found 1 day ago
£253
Return
found 1 day ago
Select SriLankan Airlines flight, departing Mon, 10 Aug from Kathmandu to Bangkok, returning Wed, 26 Aug, priced at £253 found 1 day ago
SriLankan Airlines
Wed, 12 Aug - Wed, 26 Aug
KTM
Kathmandu
BKK
Bangkok
£257 Return, found 4 days ago
£257
Return
found 4 days ago
Select SriLankan Airlines flight, departing Wed, 12 Aug from Kathmandu to Bangkok, returning Wed, 26 Aug, priced at £257 found 4 days ago
Thai Airways International
Sun, 9 Aug - Sat, 22 Aug
KTM
Kathmandu
BKK
Bangkok
£266 Return, found 4 days ago
£266
Return
found 4 days ago
Select Thai Airways International flight, departing Sun, 9 Aug from Kathmandu to Bangkok, returning Sat, 22 Aug, priced at £266 found 4 days ago
Thai Airways International
Fri, 21 Aug - Sun, 23 Aug
KTM
Kathmandu
BKK
Bangkok
£275 Return, found 4 days ago
£275
Return
found 4 days ago
Select Thai Airways International flight, departing Fri, 21 Aug from Kathmandu to Bangkok, returning Sun, 23 Aug, priced at £275 found 4 days ago
SriLankan Airlines
Wed, 26 Aug - Tue, 1 Sept
KTM
Kathmandu
BKK
Bangkok
£275 Return, found 5 days ago
£275
Return
found 5 days ago
Select SriLankan Airlines flight, departing Wed, 26 Aug from Kathmandu to Bangkok, returning Tue, 1 Sept, priced at £275 found 5 days ago
Thai Airways International
Thu, 20 Aug - Sun, 23 Aug
KTM
Kathmandu
BKK
Bangkok
£278 Return, found 4 days ago
£278
Return
found 4 days ago
Select Thai Airways International flight, departing Thu, 20 Aug from Kathmandu to Bangkok, returning Sun, 23 Aug, priced at £278 found 4 days ago
SriLankan Airlines
Mon, 3 Aug - Wed, 12 Aug
KTM
Kathmandu
BKK
Bangkok
£282 Return, found 1 day ago
£282
Return
found 1 day ago
Select SriLankan Airlines flight, departing Mon, 3 Aug from Kathmandu to Bangkok, returning Wed, 12 Aug, priced at £282 found 1 day ago
Air India
Wed, 21 Oct - Tue, 3 Nov
KTM
Kathmandu
BKK
Bangkok
£298 Return, found 2 days ago
£298
Return
found 2 days ago
Select Air India flight, departing Wed, 21 Oct from Kathmandu to Bangkok, returning Tue, 3 Nov, priced at £298 found 2 days ago
China Eastern Airlines
Thu, 20 Aug - Sun, 23 Aug
KTM
Kathmandu
BKK
Bangkok
£362 Return, found 4 days ago
£362
Return
found 4 days ago
Select China Eastern Airlines flight, departing Thu, 20 Aug from Kathmandu to Bangkok, returning Sun, 23 Aug, priced at £362 found 4 days ago
IndiGo
Sun, 26 Jul - Thu, 30 Jul
KTM
Kathmandu
BKK
Bangkok
£366 Return, found 6 days ago
£366
Return
found 6 days ago
Select IndiGo flight, departing Sun, 26 Jul from Kathmandu to Bangkok, returning Thu, 30 Jul, priced at £366 found 6 days ago

Alternative airports near Bangkok

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to Don Mueang Intl. DMK. Cheapest and Closest option available. Average driving time to city centre is 19 minutes. Flights from £3,109
DMK
Don Mueang Intl.
CheapestClosest
Average driving time to city centre19 min
Flights from £3,109

Frequently asked questions

How much does a flight from Kathmandu (KTM-Tribhuvan Intl.) to Bangkok (BKK-Suvarnabhumi Intl.) cost?
You can find cheap one-way flights from £141 and cheap return flights from £253 KTM to BKK with Expedia. One-way flights typically cost between £164 and £669, and return flights often range between £296 and £827. Flight prices vary based on the month and day of the week you want to travel, as well as the airline and how far in advance you book your ticket. Filter your search on Expedia by "Price (lowest to highest)" to see the cheapest fares first, and use the Price Tracking tool to receive alerts when KTM to BKK ticket fares go up or down.
What is the cheapest month to fly from Kathmandu (KTM) to Bangkok (BKK)?
The cheapest months to fly from Kathmandu (KTM) to Bangkok (BKK) are typically during off-peak season when demand is low. Traveling in off-peak or shoulder months is usually a good way to secure cheap tickets, just remember to avoid flying during holidays if you are able to. Use the calendar view in your search to see which months have low fares on this route.
Which airlines fly direct from Kathmandu (KTM-Tribhuvan Intl.) to Bangkok (BKK-Suvarnabhumi Intl.)?
Only one airline offers direct flights from Kathmandu (KTM-Tribhuvan Intl.) to Bangkok (BKK-Suvarnabhumi Intl.). Thai Airways International operates 14 direct flights from Kathmandu (KTM-Tribhuvan Intl.) to Bangkok (BKK-Suvarnabhumi Intl.) every week.
How do I find cheap flights from Kathmandu (KTM) to Bangkok (BKK)?
To find a cheap flight from Kathmandu (KTM) to Bangkok (BKK), be flexible with your dates. Traveling outside of peak vacation months and booking a mid-week flight can help you save. Early morning and late night flights are often more affordable, too. Expedia allows you to compare flight times, airlines and routes all in one place to find low fares. You can also set up Price Tracking and receive alerts when fares go up or down.
What is the best time to fly from Kathmandu (KTM) to Bangkok (BKK)?
The best time to fly is usually mid-week (Tuesday or Wednesday) and during early morning hours as flights tend to be cheaper, less crowded, and generally more on-time. Avoid major holidays and peak vacation seasons for smoother travel. Combining off-peak days and hours often gives the best combination of cost, comfort, and convenience.
What is the earliest flight from Kathmandu (KTM-Tribhuvan Intl.) to Bangkok (BKK-Suvarnabhumi Intl.)?
The earliest flight from Kathmandu (KTM-Tribhuvan Intl.) to Bangkok (BKK-Suvarnabhumi Intl.) typically departs around 12:05 AM local time. This flight is operated by flydubai and Emirates. This is a seasonal service, active only in September. An early departure like this can help you make the most of your time at your destination. To compare early flights on Expedia, select the "Early Morning" and "Morning" filters in your search.
How long does it take to fly from Kathmandu (KTM-Tribhuvan Intl.) to Bangkok (BKK-Suvarnabhumi Intl.)?
A direct flight from Kathmandu (KTM-Tribhuvan Intl.) to Bangkok (BKK-Suvarnabhumi Intl.) typically takes around 3 hours 30 minutes. This route covers a distance of approximately 2231 kilometres. If you opt for a flight with one stop, your journey will generally take much longer, often around 24 hours 48 minutes. Flights with two or more stops can take even longer, usually around 23 hours 48 minutes. Keep in mind that actual flight times can vary due to factors like wind patterns and air traffic, so it's always a good idea to allow for some extra time when planning your trip.
Can you fly business or first class from Kathmandu (KTM) to Bangkok (BKK)?
Select the "Business class" and "First class" filters when looking for Kathmandu (KTM) to Bangkok (BKK) flights on Expedia. This is the easiest way to compare prices, routes and flight times for your trip.
How much is a business class flight from Kathmandu (KTM-Tribhuvan Intl.) to Bangkok (BKK-Suvarnabhumi Intl.)?
A direct, return business class ticket from Kathmandu (KTM-Tribhuvan Intl.) to Bangkok (BKK-Suvarnabhumi Intl.) typically costs between £1,027 - £1,259. Prices often fluctuate based on seasonality and how early you book. You may also be able to find a cheaper business class journey between Kathmandu (KTM-Tribhuvan Intl.) to Bangkok (BKK-Suvarnabhumi Intl.) if you opt for a connecting flight.
How do I earn miles on a Kathmandu (KTM-Tribhuvan Intl.) to Bangkok (BKK-Suvarnabhumi Intl.) flight with Expedia?
It's easy to earn miles on a Kathmandu (KTM-Tribhuvan Intl.) to Bangkok (BKK-Suvarnabhumi Intl.) flight when you book with Expedia. Before you confirm your booking, simply select your frequent flyer program and enter your program number. As a member of One Key™, you can also earn OneKeyCash™* on top of your airline miles when you book with Expedia.*Excludes taxes and fees. OneKeyCash is not redeemable for cash and can only be used on Expedia and other participating brands.
What airports do you fly into for Bangkok (BKK) from Kathmandu (KTM)?
If you're planning to travel to Bangkok from Tribhuvan Intl. (KTM), you can fly directly into Suvarnabhumi Intl. (BKK). Some flights may connect through major hubs like Indira Gandhi Intl. (DEL), Kuala Lumpur Intl. (KUL), or Kempegowda Intl. (BLR) before reaching Bangkok. Compare routes and airports on Expedia to find the best flight options for your travel plans.
Is it cheaper to buy a plane ticket from Kathmandu (KTM-Tribhuvan Intl.) to Bangkok (BKK-Suvarnabhumi Intl.) at the last minute?
Typically, booking a last minute flight from Kathmandu (KTM-Tribhuvan Intl.) to Bangkok (BKK-Suvarnabhumi Intl.) will be more expensive than booking in advance. As the departure date approaches, there are usually fewer seats available which can drive up the cost. However, if there's some wiggle room with your travel dates and times, you could bag a cheap last-minute fare.
Is it cheaper to book a Kathmandu (KTM-Tribhuvan Intl.) to Bangkok (BKK-Suvarnabhumi Intl.) flight and hotel package?
Securing a Kathmandu (KTM-Tribhuvan Intl.) to Bangkok (BKK-Suvarnabhumi Intl.) flight and hotel package is usually cheaper than booking separately. With Expedia, you can enjoy the ease of organizing your travels all in one place. Select from our extensive range of stays and then add flights, activities and car rentals to your booking. Bundle everything together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from Kathmandu (KTM) to Bangkok (BKK)?
If you booked your Kathmandu (KTM) to Bangkok (BKK) flight within the last 24 hours, you may be able to modify or cancel it without any fees. Depending on the airline and the type of ticket you have, additional charges may apply for changes beyond this timeframe. Airline policies and contact information can be found in your itinerary or confirmation email. Or, head to our Customer Service portal if you'd like more information.

Travel information

Origin airport
Tribhuvan Intl.
Destination airport
Suvarnabhumi Intl.
Airlines serving
Air Arabia, Air China, Air India, Cathay Pacific, China Eastern Airlines, China Southern Airlines, Emirates, Etihad Airways, IndiGo, Malaysia Airlines, Sichuan Airlines, Singapore Airlines, SriLankan Airlines, Thai Airways International
Return price
£253
Distance
2216 km
Average flight time
4 hours 41 mins

Book with confidence

Compare flights from Kathmandu to Bangkok easily and book with confidence

For travelling on business or for pleasure, Expedia makes it easy to book your flights from Kathmandu to Bangkok. Operating between them flights per day, 20 airlines cover the route. And fly direct, getting you to Suvarnabhumi Intl. in just hours. If you have a preferred carrier, use our advanced search tool to find the right flight from Tribhuvan Intl. to Suvarnabhumi Intl..  

To make things even better, in the advanced search, you can also choose to fly economy, premium economy, business or first class, select your maximum number of stops, and pick your preferred departure and arrival time. You can also opt for refundable and direct flights. 

Grab a great deal on your flight from Tribhuvan Intl. (KTM) to Suvarnabhumi Intl. (BKK)

The easiest way to view the best deals on flights from Kathmandu to Bangkok today is to enter your travel dates and hit search. From here, you can sort your results by price to see the cheapest flights first. Right now, return flights from Tribhuvan Intl. to Suvarnabhumi Intl. start at just £253 and range up to £366.  

To find an even better deal, try  

  • being flexible on your dates – midweek flights can be cheaper
  • looking for other airports near Kathmandu and Bangkok
  • booking your flight during August, the cheapest month on this route
  • varying your flight times – early morning and late at night are sometimes cheaper 

Why you should book your Kathmandu to Bangkok flight with Expedia!

We cater for all flight types, cabin classes and airlines. So whether you’re booking flights from Tribhuvan Intl. to Suvarnabhumi Intl. for a budget break or a business trip with a bit of pleasure thrown in, we make it easy to secure the seat that’s right for you.  

Thanks to our supersized inventory that offers great choice all in one place, you know you’ll get a great deal with Expedia. Especially if you bundle your flight together with your hotel, you will unlock amazing savings. For added peace of mind, you can choose flexible bookings or filter to find refundable options, so you won’t pay a fee to change your flight.  

Compare flights from Kathmandu to Bangkok easily and book with confidence

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