How long is the flight from Kathmandu to Southeast Asia?

A quick flight from Kathmandu to Southeast Asia can take about 32h 50m. Malaysia Airlines provides one of the quickest options available for as low as £421. The distance between Kathmandu and Southeast Asia is about 1384 mi.

What are the cheapest airlines to fly from Kathmandu to Southeast Asia one-way?

To fly one-way, consider booking your trip with Thai Lion Air, which is currently one of the cheapest options available, starting at £80. Thai AirAsia flights start at £83 while deals on Nepal Airlines start at £133 one-way.

In terms of precipitation, rainfall in Southeast Asia ranges from 10.0 - 320.0 inches per month. September is typically the wettest month, when rainfall can reach 320.0 mm. January is typically the driest time to visit Southeast Asia when rainfall is around 10.0 mm.

If weather is an important factor for your trip to Southeast Asia, use this chart to help with planning. For those seeking warmer temperatures, April is the ideal time of year to visit, when temperatures reach an average of 30.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 26.0 C).

What are the cheapest flights from Kathmandu to Southeast Asia?

The cheapest flight price from Kathmandu to Southeast Asia is £187. On average you can expect to pay £333. The most popular route, (Kathmandu Tribhuvan - Bangkok Suvarnabhumi), can usually be booked for £284.

What are the most popular airlines that fly from Kathmandu to Southeast Asia?

When booking a flight from Kathmandu to Southeast Asia, you may want to consider flying on Thai Airways, Thai AirAsia or Singapore Airlines as they are the most popular for this route.

What airport do you fly from for flights from Kathmandu to Southeast Asia?

Kathmandu Tribhuvan (KTM), located 2.5 mi from the city center, is the airport you fly out of when you book flights from Kathmandu to Southeast Asia.

Can I find deals for flights from Kathmandu to Southeast Asia that include hotel bookings?

Yes. In addition to deals on Kathmandu to Southeast Asia flights, Cheapflights offers holiday packages that include both flights and hotel.

How can I find direct flights from Kathmandu to Southeast Asia?

After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Kathmandu to Southeast Asia.

Can I find deals for business class flights from Kathmandu to Southeast Asia?

Yes. Cheapflights offers flight deals from Kathmandu to Southeast Asia by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

£154+ Cheap Flights from Kathmandu to Southeast Asia

Cheap flight deals from Kathmandu to Southeast Asia

Enter your travel dates to find the best prices.

Cheapest

Best

Direct

Last-minute

One-way

Cheapest flights from Kathmandu to Southeast Asia
Explore the most affordable flight options available from Kathmandu to Southeast Asia. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 20 August 2026.

Sun 13/900:25 -

Nonstop3h 30m

Thu 17/910:15 -

Nonstop3h 25m

Deal found 19/8£247

Sun 13/900:25 -

Nonstop3h 30m

Fri 18/921:15 -

Nonstop3h 25m

Deal found 15/8£247

Mon 14/907:35 -

1 stop8h 05m

Fri 18/915:15 -

1 stop26h 30m

Deal found 15/8£262

Mon 23/1111:10 -

Nonstop3h 20m

Mon 7/1216:45 -

Nonstop3h 30m

Deal found 19/8£275

Mon 14/907:35 -

1 stop29h 25m

Thu 17/922:25 -

1 stop19h 20m

Deal found 19/8£276

Thu 3/906:30 -

1 stop9h 10m

Thu 10/915:15 -

1 stop10h 05m

Deal found 20/8£284

Fri 21/811:10 -

Nonstop3h 20m

Wed 26/816:45 -

Nonstop3h 30m

Deal found 19/8£287

Fri 21/811:10 -

Nonstop3h 20m

Mon 31/816:45 -

Nonstop3h 30m

Deal found 19/8£289

Mon 23/1117:10 -

1 stop23h 30m

Mon 7/1222:20 -

1 stop9h 30m

Deal found 19/8£295

Wed 2/900:25 -

Nonstop3h 30m

Wed 9/910:15 -

Nonstop3h 25m

Deal found 20/8£297

Fri 9/1010:05 -

1 stop9h 05m

Mon 19/1017:55 -

1 stop23h 50m

Deal found 18/8£299

Find flight deals from Kathmandu to Southeast Asia

Round-trip from	£247
One-way from	£154
Popular in	May
Cheapest in	March
Average price	£257

Thai Airways
13/9-17/9
Nonstop
6h 55m total
Kathmandu to Southeast Asia

Search Deals

Air India
30/9
1 total stop
9h 05m total
Kathmandu to Southeast Asia

Search Deals

Highest demand for flights based on searches. 12% potential increase in price (£25 potential increase over avg. return price).

Search Deals

Cheapest flight prices on average. 3% potential price decrease (£6 potential savings vs. average return price).

Search Deals

Average for round-trip flights in August 2026

Search Deals

Cheapflights Fare Finder

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

Cheapest return flight

KathmanduBangkok

KTM Kathmandu Tribhuvan - BKK Bangkok Suvarnabhumi

KTMBKK

Kathmandu Tribhuvan

Mon 8/2

22:45-08:50

2 stops32h 50m

Bangkok Suvarnabhumi

Thu 18/2

20:05-12:00

1 stop17h 10m

£421

KathmanduBangkok

KTM Kathmandu Tribhuvan - BKK Bangkok Suvarnabhumi

KTMBKK

Kathmandu Tribhuvan

Tue 2/2

22:45-17:40

1 stop17h 40m

Bangkok Suvarnabhumi

Thu 18/2

20:05-12:00

1 stop17h 10m

£424

Fastest return journey

KathmanduBangkok

KTM Kathmandu Tribhuvan - BKK Bangkok Suvarnabhumi

KTMBKK

Kathmandu Tribhuvan

Mon 28/9

22:45-14:30

1 stop14h 30m

Bangkok Suvarnabhumi

Sun 11/10

14:15-21:30

1 stop8h 30m

£438

KathmanduBangkok

KTM Kathmandu Tribhuvan - BKK Bangkok Suvarnabhumi

KTMBKK

Kathmandu Tribhuvan

Fri 2/10

13:00-23:05

1 stop8h 50m

Bangkok Suvarnabhumi

Sat 10/10

19:20-21:30

2 stops27h 25m

£460

KathmanduBangkok

KTM Kathmandu Tribhuvan - BKK Bangkok Suvarnabhumi

KTMBKK

Kathmandu Tribhuvan

Mon 14/9

06:30-23:30

2 stops15h 45m

Bangkok Suvarnabhumi

Wed 16/9

01:45-10:55

2 stops34h 25m

£473

KathmanduBangkok

KTM Kathmandu Tribhuvan - BKK Bangkok Suvarnabhumi

KTMBKK

Kathmandu Tribhuvan

Sat 6/2

13:00-08:50

2 stops42h 35m

Bangkok Suvarnabhumi

Thu 18/2

20:05-12:00

1 stop17h 10m

£477

KathmanduBangkok

KTM Kathmandu Tribhuvan - BKK Bangkok Suvarnabhumi

KTMBKK

Kathmandu Tribhuvan

Fri 4/9

22:45-10:15

1 stop10h 15m

Bangkok Suvarnabhumi

Sat 12/9

19:20-21:45

2 stops27h 40m

£479

KathmanduBangkok

KTM Kathmandu Tribhuvan - BKK Bangkok Suvarnabhumi

KTMBKK

Kathmandu Tribhuvan

Mon 31/8

22:45-08:55

2 stops32h 55m

Bangkok Suvarnabhumi

Fri 11/9

09:05-21:45

1 stop13h 55m

£480

KathmanduBangkok

KTM Kathmandu Tribhuvan - BKK Bangkok Suvarnabhumi

KTMBKK

Kathmandu Tribhuvan

Sat 5/9

13:00-08:55

2 stops42h 40m

Bangkok Suvarnabhumi

Tue 8/9

09:05-21:45

1 stop13h 55m

£480

KathmanduBangkok

KTM Kathmandu Tribhuvan - BKK Bangkok Suvarnabhumi

KTMBKK

Kathmandu Tribhuvan

Tue 1/9

13:00-14:30

1 stop24h 15m

Bangkok Suvarnabhumi

Wed 9/9

16:40-21:45

1 stop30h 20m

£489

Flights are sorted by cheapest return flights first.

Deals found on 16/8

Showing 1-10 of 22 resultsSorted by cheapest first

Best time to book a flight from Kathmandu to Southeast Asia

Have a flexible travel schedule? Discover the best time to fly to Southeast Asia from Kathmandu with our price prediction graph.

KTM-BKK

Estimated return 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 Southeast Asia

KTM-zzYJX

KTM-BKK

What is the cheapest month to book a flight from Kathmandu to Southeast Asia?

Currently, March is the cheapest month in which you can book a flight from Kathmandu to Southeast Asia (average of £398). Flying from Kathmandu to Southeast Asia in May is currently the most expensive (average of £526). 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 YJX?

A simple way to save on the total cost of your ticket is to fly from Kathmandu to Southeast Asia in the morning. If you’re flexible enough to do this you can expect to save up to 61% on your trip compared to booking a flight at midday.

Weekly flight availability from Kathmandu to Southeast Asia

The most flights from KTM to zzYJX are scheduled on a Monday (3 on average). You will have fewer flight options on Tuesday, which is when the least amount of flights are scheduled (2 on average).

How far ahead should I book a flight from Kathmandu to Southeast Asia?

To ensure you get the cheapest price possible for a flight from Kathmandu to Southeast Asia, you should look to book at least 61 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

Reviews of airlines servicing Southeast Asia

See what other customers who have flown with Singapore Airlines from Kathmandu to Southeast Asia have to say. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.

Singapore Airlines

8.2

Very Good

1,586 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Anonymous,Nov 2024

SIN - JNB

Cabin crew in business class was just so amazing, friendly, caring and professional

Singapore Airlines

8.2

Very Good

1,586 reviews

Singapore Airlines

8.2

Very Good

1,586 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Anonymous,Nov 2024

SIN - JNB

Cabin crew in business class was just so amazing, friendly, caring and professional

Related info for your journey

What airport do you fly from for flights from Kathmandu to Southeast Asia?
Kathmandu Tribhuvan (KTM), located 2.5 mi from the city center, is the airport you fly out of when you book flights from Kathmandu to Southeast Asia.
How long is the flight from Kathmandu to Southeast Asia?
A quick flight from Kathmandu to Southeast Asia can take about 32h 50m. Malaysia Airlines provides one of the quickest options available for as low as £421. The distance between Kathmandu and Southeast Asia is about 1384 mi.
What are the cheapest airlines to fly from Kathmandu to Southeast Asia one-way?
To fly one-way, consider booking your trip with Thai Lion Air, which is currently one of the cheapest options available, starting at £80. Thai AirAsia flights start at £83 while deals on Nepal Airlines start at £133 one-way.
What are the cheapest flights from Kathmandu to Southeast Asia?
The cheapest flight price from Kathmandu to Southeast Asia is £187. On average you can expect to pay £333. The most popular route, (Kathmandu Tribhuvan - Bangkok Suvarnabhumi), can usually be booked for £284.
Can I find deals for flights from Kathmandu to Southeast Asia that include hotel bookings?
Yes. In addition to deals on Kathmandu to Southeast Asia flights, Cheapflights offers holiday packages that include both flights and hotel.
How can I find direct flights from Kathmandu to Southeast Asia?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Kathmandu to Southeast Asia.
Can I find deals for business class flights from Kathmandu to Southeast Asia?
Yes. Cheapflights offers flight deals from Kathmandu to Southeast Asia 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 Southeast Asia?
Currently, March is the cheapest month in which you can book a flight from Kathmandu to Southeast Asia (average of £398). Flying from Kathmandu to Southeast Asia in May is currently the most expensive (average of £526). 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

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Top 5 airlines flying from Kathmandu to Southeast Asia

Airline	Cheapest	Average	Flexibility	On-time
Thai AirAsia	Cheapest£88	Average£190	FlexibilityNo cancel fee	On-time87%	Search Thai AirAsia flights
Thai Lion Air	Cheapest£145	Average£232	FlexibilityNo cancel fee	On-timeN/A	Search Thai Lion Air flights
Nepal Airlines	Cheapest£201	Average£226	FlexibilityNo cancel fee	On-timeN/A	Search Nepal Airlines flights
Thai Airways	Cheapest£224	Average£307	FlexibilityNo cancel fee	On-time77%	Search Thai Airways flights
Singapore Airlines	Cheapest£336	Average£412	FlexibilityNo cancel fee	On-time81%	Search Singapore Airlines flights

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Cheapflights helps you search for flights from Kathmandu to Southeast Asia via 900+ travel sites so you don’t have to. After performing a flight search, users can also filter their flight selection by filtering for price, number of stops, airlines, and so on.

Why should you use Cheapflights to find cheap flight tickets from Kathmandu to Southeast Asia?

Millions of users choose and trust Cheapflights to book the best flight deals from Kathmandu to Southeast Asia for free. We help you search and compare prices from hundreds of airlines for the right flight just for you.

Can Cheapflights find flights from Kathmandu to Southeast Asia with no change fees?

Certainly. Search results for flights to Southeast Asia from Kathmandu shown to you on Cheapflights can be narrowed down with different useful search filters, which includes flexible booking options.

Can Cheapflights notify me if prices for flights from Kathmandu to Southeast Asia become cheaper?

Yes! Start tracking prices for Kathmandu to Southeast Asia flights today and get alerted whenever prices for these flights change. To access this feature, click the bell icon next to the flight deals above, which will prompt you for a valid email address to receive your alerts.

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Cheap flights from Kathmandu to Southeast Asia from £154

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 30/9. Fares are subject to change and may not be available on all flights or dates of travel.

Cheap flight deals from Kathmandu to Southeast Asia

Cheapest flights from Kathmandu to Southeast AsiaExplore the most affordable flight options available from Kathmandu to Southeast Asia. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 20 August 2026.

Explore the most affordable flight options available from Kathmandu to Southeast Asia. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 20 August 2026.

Best flights from Kathmandu to Southeast AsiaDiscover carefully curated flight deals from Kathmandu to Southeast Asia that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 20 August 2026.

Discover carefully curated flight deals from Kathmandu to Southeast Asia that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 20 August 2026.

Direct flights from Kathmandu to Southeast AsiaExplore direct flight options from Kathmandu to Southeast Asia based on user searches, and compare prices and availability for your desired travel dates. Data last updated 20 August 2026.

Explore direct flight options from Kathmandu to Southeast Asia based on user searches, and compare prices and availability for your desired travel dates. Data last updated 20 August 2026.

Last-minute flights from Kathmandu to Southeast AsiaDiscover last-minute flight deals from Kathmandu to Southeast Asia. Data last updated 20 August 2026 and is based on user searches.

Discover last-minute flight deals from Kathmandu to Southeast Asia. Data last updated 20 August 2026 and is based on user searches.

One-way flights from Kathmandu to Southeast AsiaSearch for one-way flight options from Kathmandu to Southeast Asia. Find affordable one-way fares based on user searches. Data last updated 20 August 2026.

Search for one-way flight options from Kathmandu to Southeast Asia. Find affordable one-way fares based on user searches. Data last updated 20 August 2026.

Find flight deals from Kathmandu to Southeast Asia

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Popular in

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Cheapflights Fare Finder

Use the filters below to find and compare flights from Kathmandu to Southeast Asia that are best for you.

Best time to book a flight from Kathmandu to Southeast Asia

Have a flexible travel schedule? Discover the best time to fly to Southeast Asia from Kathmandu with our price prediction graph.

Cheapflights Insights

What is the cheapest month to book a flight from Kathmandu to Southeast Asia?

What is the cheapest time of day to fly from KTM to YJX?

Find hourly flight availability from Kathmandu to Southeast Asia. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 20 August 2026.

A simple way to save on the total cost of your ticket is to fly from Kathmandu to Southeast Asia in the morning. If you’re flexible enough to do this you can expect to save up to 61% on your trip compared to booking a flight at midday.

Weekly flight availability from Kathmandu to Southeast Asia

The most flights from KTM to zzYJX are scheduled on a Monday (3 on average). You will have fewer flight options on Tuesday, which is when the least amount of flights are scheduled (2 on average).

How far ahead should I book a flight from Kathmandu to Southeast Asia?

To ensure you get the cheapest price possible for a flight from Kathmandu to Southeast Asia, you should look to book at least 61 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

Reviews of airlines servicing Southeast Asia

See what other customers who have flown with Singapore Airlines from Kathmandu to Southeast Asia have to say. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.

Related info for your journey

What airport do you fly from for flights from Kathmandu to Southeast Asia?

How long is the flight from Kathmandu to Southeast Asia?

What are the cheapest airlines to fly from Kathmandu to Southeast Asia one-way?

What are the cheapest flights from Kathmandu to Southeast Asia?

Can I find deals for flights from Kathmandu to Southeast Asia that include hotel bookings?

How can I find direct flights from Kathmandu to Southeast Asia?

Can I find deals for business class flights from Kathmandu to Southeast Asia?

What is the cheapest month to book a flight from Kathmandu to Southeast Asia?

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.

Alternative routes for Kathmandu to Southeast Asia

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Complete your trip

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Find flights from Kathmandu to Southeast Asia, based on your preferred cabin class, be it economy, premium economy, business, or first class.

Kathmandu and Southeast Asia flights

Browse other Kathmandu and Southeast Asia flight options. Last updated on 20 August 2026.

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Can Cheapflights notify me if prices for flights from Kathmandu to Southeast Asia become cheaper?

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Cheapest flights from Kathmandu to Southeast Asia
Explore the most affordable flight options available from Kathmandu to Southeast Asia. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 20 August 2026.

Best flights from Kathmandu to Southeast Asia
Discover carefully curated flight deals from Kathmandu to Southeast Asia that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 20 August 2026.

Direct flights from Kathmandu to Southeast Asia
Explore direct flight options from Kathmandu to Southeast Asia based on user searches, and compare prices and availability for your desired travel dates. Data last updated 20 August 2026.

Last-minute flights from Kathmandu to Southeast Asia
Discover last-minute flight deals from Kathmandu to Southeast Asia. Data last updated 20 August 2026 and is based on user searches.

One-way flights from Kathmandu to Southeast Asia
Search for one-way flight options from Kathmandu to Southeast Asia. Find affordable one-way fares based on user searches. Data last updated 20 August 2026.