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Cheap flights from Kathmandu to Southeast Asia from £146

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Kathmandu to Southeast Asia departing on 11/11. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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0 bags
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Find the cheapest flights from Kathmandu to Southeast Asia

Cheap return flights

Logo
13:35 - 12:55KTM-BKK
22h 05m1 stop
Logo
19:00 - 11:50BKK-KTM
18h 05m1 stop
£249
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Wed, 1 Oct - Fri, 17 Oct
Logo
11:10 - 15:45KTM-BKK
3h 20mdirect
Logo
03:00 - 11:50BKK-KTM
10h 05m1 stop
£258
Find Deal
Wed, 1 Oct - Thu, 16 Oct
Thai Airways Logo
00:25 - 05:10KTM-BKK
3h 30mdirect
Thai Airways Logo
10:15 - 12:25BKK-KTM
3h 25mdirect
£261Thai Airways
Find Deal
Sun, 16 Nov - Thu, 20 Nov
Nepal Airlines Logo
11:10 - 15:45KTM-BKK
3h 20mdirect
Nepal Airlines Logo
16:45 - 19:00BKK-KTM
3h 30mdirect
£265Nepal Airlines
Find Deal
Wed, 1 Oct - Fri, 17 Oct
Air India Logo
14:00 - 16:55KTM-BKK
25h 40m1 stop
Air India Logo
17:55 - 06:35BKK-KTM
13h 55m1 stop
£272Air India
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Wed, 1 Oct - Fri, 17 Oct
Air India Logo
07:35 - 16:55KTM-BKK
8h 05m1 stop
Air India Logo
22:25 - 06:35BKK-KTM
9h 25m1 stop
£273Air India
Find Deal
Wed, 1 Oct - Fri, 17 Oct
Logo
11:10 - 15:45KTM-BKK
3h 20mdirect
Logo
19:00 - 11:50BKK-KTM
18h 05m1 stop
£275
Find Deal
Wed, 1 Oct - Fri, 17 Oct
Thai Airways Logo
00:35 - 05:20KTM-BKK
3h 30mdirect
Thai Airways Logo
21:25 - 23:35BKK-KTM
3h 25mdirect
£308Thai Airways
Find Deal
Tue, 30 Sep - Fri, 17 Oct
Malaysia Airlines Logo
22:45 - 10:15KTM-BKK
10h 15m1 stop
Malaysia Airlines Logo
18:40 - 12:00BKK-KTM
18h 35m1 stop
£478Malaysia Airlines
Find Deal
Tue, 30 Dec - Fri, 2 Jan
Malaysia Airlines Logo
22:45 - 16:05KTM-BKK
16h 05m1 stop
Malaysia Airlines Logo
18:40 - 12:00BKK-KTM
18h 35m1 stop
£516Malaysia Airlines
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Tue, 30 Dec - Sun, 4 Jan

Thai Airways flights from Kathmandu to Southeast Asia

Our best Thai Airways deals on Kathmandu to Southeast Asia flight tickets
Thai Airways
16 Nov
KTM00:25Kathmandu Tribhuvan
3h 30m
BKK05:10Bangkok Suvarnabhumi
20 Nov
BKK10:15Bangkok Suvarnabhumi
3h 25m
KTM12:25Kathmandu Tribhuvan
£261
Find similar
Thai Airways
30 Sept
KTM00:35Kathmandu Tribhuvan
3h 30m
BKK05:20Bangkok Suvarnabhumi
17 Oct
BKK21:25Bangkok Suvarnabhumi
3h 25m
KTM23:35Kathmandu Tribhuvan
£308
Find similar
Thai Airways
30 Sept
KTM00:35Kathmandu Tribhuvan
3h 30m
BKK05:20Bangkok Suvarnabhumi
17 Oct
BKK21:25Bangkok Suvarnabhumi
3h 25m
KTM23:35Kathmandu Tribhuvan
£318
Find similar

Air India flights from Kathmandu to Southeast Asia

Our best Air India deals on Kathmandu to Southeast Asia flight tickets
Air India
1 Oct
KTM14:00Kathmandu Tribhuvan
25h 40m
1 stop
BKK16:55Bangkok Suvarnabhumi
17 Oct
BKK17:55Bangkok Suvarnabhumi
13h 55m
1 stop
KTM06:35Kathmandu Tribhuvan
£272
Find similar
Air India
1 Oct
KTM07:35Kathmandu Tribhuvan
8h 05m
1 stop
BKK16:55Bangkok Suvarnabhumi
17 Oct
BKK22:25Bangkok Suvarnabhumi
9h 25m
1 stop
KTM06:35Kathmandu Tribhuvan
£273
Find similar
Air India
4 Oct
KTM06:30Kathmandu Tribhuvan
9h 10m
1 stop
BKK16:55Bangkok Suvarnabhumi
18 Oct
BKK17:55Bangkok Suvarnabhumi
16h 25m
1 stop
KTM09:05Kathmandu Tribhuvan
£286
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momondo Fare Finder

 
Customise your flight search to find flights from Kathmandu to Southeast Asia 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, momondo users made 279,928 searches. Data last updated 16 September 2025.
Use the filters below to find and compare flights from Kathmandu to Southeast Asia that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

KathmanduBangkok

KTM - BKK

KTMBKK

Kathmandu Tribhuvan

Wed 1/10

13:35-12:55

1 stop22h 05m

Bangkok Suvarnabhumi

Fri 17/10

19:00-11:50

1 stop18h 05m

£249

KathmanduBangkok

KTM - BKK

KTMBKK

Kathmandu Tribhuvan

Wed 1/10

11:10-15:45

Nonstop3h 20m

Bangkok Suvarnabhumi

Thu 16/10

03:00-11:50

1 stop10h 05m

£258

KathmanduBangkok

KTM - BKK

KTMBKK

Kathmandu Tribhuvan

Sun 16/11

00:25-05:10

Nonstop3h 30m

Bangkok Suvarnabhumi

Thu 20/11

10:15-12:25

Nonstop3h 25m

£261

KathmanduBangkok

KTM - BKK

KTMBKK

Kathmandu Tribhuvan

Wed 1/10

11:10-15:45

Nonstop3h 20m

Bangkok Suvarnabhumi

Fri 17/10

16:45-19:00

Nonstop3h 30m

£265

KathmanduBangkok

KTM - BKK

KTMBKK

Kathmandu Tribhuvan

Wed 1/10

14:00-16:55

1 stop25h 40m

Bangkok Suvarnabhumi

Fri 17/10

17:55-06:35

1 stop13h 55m

£272

KathmanduBangkok

KTM - BKK

KTMBKK

Kathmandu Tribhuvan

Wed 1/10

07:35-16:55

1 stop8h 05m

Bangkok Suvarnabhumi

Fri 17/10

22:25-06:35

1 stop9h 25m

£273

KathmanduBangkok

KTM - BKK

KTMBKK

Kathmandu Tribhuvan

Wed 1/10

11:10-15:45

Nonstop3h 20m

Bangkok Suvarnabhumi

Fri 17/10

19:00-11:50

1 stop18h 05m

£275

KathmanduBangkok

KTM - BKK

KTMBKK

Kathmandu Tribhuvan

Tue 30/9

00:35-05:20

Nonstop3h 30m

Bangkok Suvarnabhumi

Fri 17/10

21:25-23:35

Nonstop3h 25m

£308

KathmanduBangkok

KTM - BKK

KTMBKK

Kathmandu Tribhuvan

Tue 30/12

22:45-10:15

1 stop10h 15m

Bangkok Suvarnabhumi

Fri 2/1

18:40-12:00

1 stop18h 35m

£478

KathmanduBangkok

KTM - BKK

KTMBKK

Kathmandu Tribhuvan

Tue 30/12

22:45-16:05

1 stop16h 05m

Bangkok Suvarnabhumi

Sun 4/1

18:40-12:00

1 stop18h 35m

£516

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
1
2

See travel insights to Southeast Asia from

How to get the cheapest flight ticket from Kathmandu to Southeast Asia

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest month to fly to Southeast Asia?

The month of July is, on average, the cheapest month to fly to Southeast Asia from Kathmandu, with most prices found around £181. If you are unable to visit Southeast Asia during the month of July, then departing from Kathmandu during the month August is also very affordable. Most momondo users find prices during this month for around £190.

What is the cheapest day to depart on your flight to Southeast Asia?

Our data shows that Monday is the least expensive day to fly to Southeast Asia. Tickets to fly out on this day can be as low as £360. Be sure to avoid booking your departure on a Tuesday as prices are generally higher than usual. According to our data, the average ticket price to Southeast Asia on Tuesday is £474.

What is the cheapest time of day to depart on your flight to Southeast Asia?

In the afternoon is the cheapest time of day to fly from Kathmandu to Southeast Asia when you can find flight prices for as low as £207. Flying to Southeast Asia in the afternoon is an ideal time because this is during off-peak travel hours. Try not to purchase tickets in the evening because they tend to be around £427. Of course, these prices can vary depending on the time of year and what airport you fly to.

What is the cheapest Kathmandu Tribhuvan to Southeast Asia flight route?

Fly from Kathmandu Tribhuvan to Bangkok Suvarnabhumi for the best Kathmandu Tribhuvan - Southeast Asia flight prices

How far in advance should I book a flight to Southeast Asia?

You are more likely to see cheaper flights to Southeast Asia from Kathmandu when booking weeks ahead of your departure date. In general, you can expect to find flights to Southeast Asia for around £226 when searching weeks before you fly. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Southeast Asia from Kathmandu for as low as £173 on momondo.

What cabin class options are available on Kathmandu Tribhuvan to Southeast Asia flights?

There are 3 cabin classes available to choose from on Kathmandu Tribhuvan to Southeast Asia flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Can stopping save me money on Kathmandu to Southeast Asia flights?

No. A direct flight is the cheapest option for a flight between Kathmandu to Southeast Asia.

Cheap Kathmandu to Southeast Asia flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Kathmandu to Southeast Asia

Fastest flight time

3h 20m

Direct flights

Every day

Airports in Southeast Asia

1 airport
The fastest flight from Kathmandu to Southeast Asia takes 3h 20m
Direct flights go from Kathmandu to Southeast Asia every day.
There is 1 airport near Southeast Asia: Bangkok Suvarnabhumi (BKK)
Search flight deals

  • When did momondo last update prices for flights from Kathmandu Tribhuvan Airport to Southeast Asia?

    Prices for flights from Kathmandu Tribhuvan Airport to Southeast Asia were last updated today.

  • How many operators does momondo search for flights from Kathmandu Tribhuvan Airport to Southeast Asia?

  • How old do you have to be to fly from Kathmandu Tribhuvan Airport to Southeast Asia?

    The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Kathmandu Tribhuvan Airport to Southeast Asia.

  • What documentation or ID do you need to fly to Southeast Asia?

    The travel and health documents required for your trip to Southeast Asia can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Southeast Asia. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

  • What is the most popular plane model from Kathmandu to Southeast Asia?

Best airlines flying from Kathmandu to Southeast Asia

Compare and see reviews for airlines that fly from Kathmandu to Southeast Asia with momondo
Airline
Rating
Free Cancellation
Price
Thai AirAsiaPriceFrom £147Free CancellationRating
7.5
216 reviews
Search Thai AirAsia flights
Thai Lion AirPriceFrom £159Free CancellationRating
7.3
27 reviews
Search Thai Lion Air flights
Nepal AirlinesPriceFrom £171Free CancellationRating
5.8
11 reviews
Search Nepal Airlines flights
Thai AirwaysPriceFrom £231Free CancellationRating
7.8
350 reviews
Search Thai Airways flights
Singapore AirlinesPriceFrom £324Free CancellationRating
8.1
1,365 reviews
Search Singapore Airlines flights
Malaysia AirlinesPriceFrom £366Free CancellationRating
7.3
278 reviews
Search Malaysia Airlines flights

Why use momondo?

Why should I use momondo to find a flight deal from Kathmandu to Southeast Asia?

It is quick and easy to find Kathmandu to Southeast Asia flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to Southeast Asia that suits you.

Can I find flights from Kathmandu to Southeast Asia with flexible booking policies on momondo?

Flights from Kathmandu to Southeast Asia with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

How can momondo help me find flights from Kathmandu to Southeast Asia?

momondo provides multiple filters to help you find the best flight to Southeast Asia from Kathmandu. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

I’m not ready to book a flight from Kathmandu to Southeast Asia right now. Can momondo alert me if prices change?

Of course. momondo tracks the price of Kathmandu to Southeast Asia flights. All you need is a valid email address and we will do the rest; it is that quick and easy.

An easier way to manage your Southeast Asia trip

We make it super easy to schedule, organise and travel with friends or family. Trips is free – and available to use no matter where you book.
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