Latest deals
Insights
FAQs
Reviews
Price Alerts

Cheap flights from Kathmandu to Southeast Asia from £138

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 1/9. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

Discover deals from 900+ travel sites with momondo.

Voted winner of Europe's Best Travel App 2023

Save money when you book flights with momondo

Big names, great deals

Big names, great deals

Search 100s of travel sites to compare prices.

Filter for what you want

Filter for what you want

Free Wi-Fi? Stopover? Instantly customise your results.

Trusted and free

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Price Alerts

Not ready to book? to track prices.
Search flight deals

Find the cheapest flights from Kathmandu to Southeast Asia

Cheap return flights

Thai Airways Logo
13:30 - 18:15KTM-BKK
3h 30mdirect
Thai Airways Logo
10:15 - 12:25BKK-KTM
3h 25mdirect
£244Thai Airways
Find Deal
sab, 6 set - sab, 13 set
Air India Logo
06:30 - 20:25KTM-BKK
12h 40m1 stop
Air India Logo
15:15 - 23:00BKK-KTM
9h 00m1 stop
£260Air India
Find Deal
sab, 6 set - sab, 13 set
Thai Airways Logo
23:30 - 04:15KTM-BKK
3h 30mdirect
Thai Airways Logo
20:20 - 22:30BKK-KTM
3h 25mdirect
£268Thai Airways
Find Deal
sab, 13 set - sab, 20 set
SriLankan Airlines Logo
13:35 - 06:15KTM-BKK
15h 25m1 stop
SriLankan Airlines Logo
13:55 - 12:15BKK-KTM
23h 35m1 stop
£272SriLankan Airlines
Find Deal
mer, 8 ott - sab, 18 ott
Air India Logo
07:35 - 16:55KTM-BKK
8h 05m1 stop
Air India Logo
08:40 - 20:05BKK-KTM
12h 40m1 stop
£273Air India
Find Deal
sab, 13 set - sab, 20 set
Malaysia Airlines Logo
13:00 - 23:10KTM-BKK
8h 55m1 stop
Malaysia Airlines Logo
05:40 - 22:30BKK-KTM
18h 05m1 stop
£285Malaysia Airlines
Find Deal
sab, 24 gen - lun, 23 feb
Biman Bangladesh Logo
16:00 - 15:00KTM-BKK
21h 45m1 stop
Biman Bangladesh Logo
16:15 - 17:45BKK-KTM
26h 45m1 stop
£286Biman Bangladesh
Find Deal
dom, 21 set - gio, 25 set
SriLankan Airlines Logo
13:35 - 12:55KTM-BKK
22h 05m1 stop
SriLankan Airlines Logo
13:55 - 12:15BKK-KTM
23h 35m1 stop
£294SriLankan Airlines
Find Deal
mer, 8 ott - sab, 18 ott
Biman Bangladesh Logo
16:00 - 15:00KTM-BKK
21h 45m1 stop
Biman Bangladesh Logo
16:15 - 14:00BKK-KTM
23h 00m1 stop
£325Biman Bangladesh
Find Deal
mer, 1 ott - ven, 17 ott
Malaysia Airlines Logo
13:00 - 23:10KTM-BKK
8h 55m1 stop
Malaysia Airlines Logo
11:05 - 22:30BKK-KTM
12h 40m1 stop
£347Malaysia Airlines
Find Deal
sab, 24 gen - mar, 24 feb

Thai Airways flights from Kathmandu to Southeast Asia

Our best Thai Airways deals on Kathmandu to Southeast Asia flight tickets
Thai Airways
6 Sept
KTM13:30Kathmandu Tribhuvan
3h 30m
BKK18:15Bangkok Suvarnabhumi
13 Sept
BKK10:15Bangkok Suvarnabhumi
3h 25m
KTM12:25Kathmandu Tribhuvan
£244
Find similar
Thai Airways
13 Sept
KTM23:30Kathmandu Tribhuvan
3h 30m
BKK04:15Bangkok Suvarnabhumi
20 Sept
BKK20:20Bangkok Suvarnabhumi
3h 25m
KTM22:30Kathmandu Tribhuvan
£268
Find similar
Thai Airways
21 Sept
KTM13:30Kathmandu Tribhuvan
3h 30m
BKK18:15Bangkok Suvarnabhumi
25 Sept
BKK10:15Bangkok Suvarnabhumi
3h 25m
KTM12:25Kathmandu Tribhuvan
£281
Find similar

Air India flights from Kathmandu to Southeast Asia

Our best Air India deals on Kathmandu to Southeast Asia flight tickets
Air India
6 Sept
KTM06:30Kathmandu Tribhuvan
12h 40m
1 stop
BKK20:25Bangkok Suvarnabhumi
13 Sept
BKK15:15Bangkok Suvarnabhumi
9h 00m
1 stop
KTM23:00Kathmandu Tribhuvan
£260
Find similar
Air India
13 Sept
KTM07:35Kathmandu Tribhuvan
8h 05m
1 stop
BKK16:55Bangkok Suvarnabhumi
20 Sept
BKK08:40Bangkok Suvarnabhumi
12h 40m
1 stop
KTM20:05Kathmandu Tribhuvan
£273
Find similar
Air India
4 Oct
KTM06:30Kathmandu Tribhuvan
12h 40m
1 stop
BKK20:25Bangkok Suvarnabhumi
18 Oct
BKK22:25Bangkok Suvarnabhumi
22h 55m
1 stop
KTM20:05Kathmandu Tribhuvan
£331
Find similar

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 1 agosto 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

sab 6/9

13:30-18:15

Nonstop3h 30m

Bangkok Suvarnabhumi

sab 13/9

10:15-12:25

Nonstop3h 25m

£244

KathmanduBangkok

KTM - BKK

KTMBKK

Kathmandu Tribhuvan

sab 6/9

06:30-20:25

1 stop12h 40m

Bangkok Suvarnabhumi

sab 13/9

15:15-23:00

1 stop9h 00m

£260

KathmanduBangkok

KTM - BKK

KTMBKK

Kathmandu Tribhuvan

sab 13/9

23:30-04:15

Nonstop3h 30m

Bangkok Suvarnabhumi

sab 20/9

20:20-22:30

Nonstop3h 25m

£268

KathmanduBangkok

KTM - BKK

KTMBKK

Kathmandu Tribhuvan

mer 8/10

13:35-06:15

1 stop15h 25m

Bangkok Suvarnabhumi

sab 18/10

13:55-12:15

1 stop23h 35m

£272

KathmanduBangkok

KTM - BKK

KTMBKK

Kathmandu Tribhuvan

sab 13/9

07:35-16:55

1 stop8h 05m

Bangkok Suvarnabhumi

sab 20/9

08:40-20:05

1 stop12h 40m

£273

KathmanduBangkok

KTM - BKK

KTMBKK

Kathmandu Tribhuvan

sab 24/1

13:00-23:10

1 stop8h 55m

Bangkok Suvarnabhumi

lun 23/2

05:40-22:30

1 stop18h 05m

£285

KathmanduBangkok

KTM - BKK

KTMBKK

Kathmandu Tribhuvan

dom 21/9

16:00-15:00

1 stop21h 45m

Bangkok Suvarnabhumi

gio 25/9

16:15-17:45

1 stop26h 45m

£286

KathmanduBangkok

KTM - BKK

KTMBKK

Kathmandu Tribhuvan

mer 8/10

13:35-12:55

1 stop22h 05m

Bangkok Suvarnabhumi

sab 18/10

13:55-12:15

1 stop23h 35m

£294

KathmanduBangkok

KTM - BKK

KTMBKK

Kathmandu Tribhuvan

mer 1/10

16:00-15:00

1 stop21h 45m

Bangkok Suvarnabhumi

ven 17/10

16:15-14:00

1 stop23h 00m

£325

KathmanduBangkok

KTM - BKK

KTMBKK

Kathmandu Tribhuvan

sab 24/1

13:00-23:10

1 stop8h 55m

Bangkok Suvarnabhumi

mar 24/2

11:05-22:30

1 stop12h 40m

£347

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 June is, on average, the cheapest month to fly to Southeast Asia from Kathmandu, with most prices found around £200. If you are unable to visit Southeast Asia during the month of June, then departing from Kathmandu during the month July is also very affordable. Most momondo users find prices during this month for around £209.

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 £375. 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 £486.

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 £206. 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 £421. 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 £241 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 £171 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

Best price found

£138

Fastest flight time

3h 20m

Direct flights

Every day

Airports in Southeast Asia

1 airport
The best one-way flight to Southeast Asia from Kathmandu in the past 72 hours is £138. The best return flight deal from Kathmandu to Southeast Asia found on momondo in the last 72 hours is £244.
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 £101Free CancellationRating
7.5
217 reviews
Search Thai AirAsia flights
Thai Lion AirPriceFrom £174Free CancellationRating
7.1
28 reviews
Search Thai Lion Air flights
Nepal AirlinesPriceFrom £176Free CancellationRating
5.8
11 reviews
Search Nepal Airlines flights
Thai AirwaysPriceFrom £228Free CancellationRating
7.8
340 reviews
Search Thai Airways flights
Air IndiaPriceFrom £289Free CancellationRating
5.5
2,928 reviews
Search Air India flights
Singapore AirlinesPriceFrom £311Free CancellationRating
8.1
1,338 reviews
Search Singapore Airlines flights
Malaysia AirlinesPriceFrom £376Free CancellationRating
7.4
271 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.
Start using Trips
Find my bookings

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.
1 adult
mer 6/8
mer 13/8
By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to Southeast Asia

Popular Cities in Southeast Asia

Popular flights according to clicks in the last 7 days on momondo
Flights to Londonfrom £30
Flights to Bangkokfrom £329
Flights to New Yorkfrom £243
Flights to Dubaifrom £176
Flights to Istanbulfrom £62
Flights to Manchesterfrom £32
Flights to Jeddahfrom £156
Flights to Islamabadfrom £357
Flights to Manilafrom £474
Flights to New Delhifrom £323
Flights to Mumbaifrom £286
Flights to Lisbonfrom £43