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

To fly one-way, consider booking your trip with IndiGo, which is currently one of the cheapest options available, starting at £138. Thai Airways flights start at £143 while deals on Air India start at £179 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 £217. On average you can expect to pay £348. The most popular route, (Kathmandu Tribhuvan - Bangkok Suvarnabhumi), can usually be booked for £154.

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 AirAsia, Nepal Airlines or Thai Lion Air as they are the most popular for this route.

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

Find a great deal and save up to 51% by booking at least 57 days prior to your desired departure date, rather than waiting until the week of travel. According to our data, there are a number of flights available from Kathmandu to Southeast Asia within the next two weeks, with the cheapest ticket starting at £275.

What is the cheapest month to fly from Kathmandu to Southeast Asia?

The best pricing can be found in the month of June. Prices to Southeast Asia from Kathmandu average £241. You can even find prices in June for less than £241, as users have found deals to Southeast Asia from as low as £141. The month of April appears to be one of the more expensive times to travel to Southeast Asia from Kathmandu. Flying in the targeted month can save you up to 23%.

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.

£138+ Flights from Kathmandu to Southeast Asia

Cheap flight deals from Kathmandu to Southeast Asia

Round-trip from	£244
One-way from	£138
Popular in	April
Cheapest in	June
Average price	£252

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

Search Deals

IndiGo
1/9
1 total stop
30h 20m total
Kathmandu to Southeast Asia

Search Deals

Highest demand for flights based on searches. 5% potential increase in price (£10 potential increase over avg. return price).

Search Deals

Cheapest flight prices on average. 2% potential price decrease (£4 potential savings vs. average return price).

Search Deals

Average for round-trip flights in August 2025

Search Deals

Find flight deals from Kathmandu to Southeast Asia

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 1 August 2025.

Wed 30/723:30KTM - BKK

Nonstop3h 30mThai Airways

Thu 7/810:15BKK - KTM

Nonstop3h 25mThai Airways

Deal found 30/7£238

Sat 6/906:30KTM - BKK

1 stop12h 40mAir India

Sat 13/915:15BKK - KTM

1 stop9h 00mAir India

Deal found 31/7£260

Wed 8/1013:35KTM - BKK

1 stop15h 25mSriLankan Airlines

Sat 18/1013:55BKK - KTM

1 stop23h 35mSriLankan Airlines

Deal found 30/7£272

Sun 21/916:00KTM - BKK

1 stop21h 45mBiman Bangladesh

Thu 25/916:15BKK - KTM

1 stop26h 45mBiman Bangladesh

Deal found 1/8£286

Sat 6/913:30KTM - BKK

Nonstop3h 30mMultiple Airlines

Sat 13/912:20BKK - KTM

1 stop27h 00mMultiple Airlines

Deal found 31/7£290

Tue 2/1222:45KTM - BKK

1 stop13h 25mMalaysia Airlines

Mon 12/105:40BKK - KTM

1 stop17h 20mMalaysia Airlines

Deal found 31/7£371

Wed 1/1011:10KTM - BKK

Nonstop3h 20mNepal Airlines

Fri 17/1016:45BKK - KTM

Nonstop3h 30mNepal Airlines

Deal found 1/8£404

Sat 13/916:35KTM - BKK

2 stops22h 00mChina Eastern

Sat 20/919:15BKK - KTM

2 stops21h 35mChina Eastern

Deal found 30/7£524

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 1 August 2025.

Sat 6/913:30KTM - BKK

Nonstop3h 30mThai Airways

Sat 13/910:15BKK - KTM

Nonstop3h 25mThai Airways

Deal found 31/7£244

Sat 6/906:30KTM - BKK

1 stop12h 40mAir India

Sat 13/915:15BKK - KTM

1 stop9h 00mAir India

Deal found 31/7£260

Wed 8/1013:35KTM - BKK

1 stop15h 25mSriLankan Airlines

Sat 18/1013:55BKK - KTM

1 stop23h 35mSriLankan Airlines

Deal found 30/7£272

Sat 24/113:00KTM - BKK

1 stop8h 55mMalaysia Airlines

Mon 23/205:40BKK - KTM

1 stop18h 05mMalaysia Airlines

Deal found 30/7£285

Sun 21/916:00KTM - BKK

1 stop21h 45mBiman Bangladesh

Thu 25/916:15BKK - KTM

1 stop26h 45mBiman Bangladesh

Deal found 1/8£286

Sat 6/913:30KTM - BKK

Nonstop3h 30mMultiple Airlines

Sat 13/912:20BKK - KTM

1 stop27h 00mMultiple Airlines

Deal found 31/7£290

Wed 1/1011:10KTM - BKK

Nonstop3h 20mNepal Airlines

Fri 17/1016:45BKK - KTM

Nonstop3h 30mNepal Airlines

Deal found 1/8£404

Sat 13/916:35KTM - BKK

2 stops22h 00mChina Eastern

Sat 20/919:15BKK - KTM

2 stops21h 35mChina Eastern

Deal found 30/7£524

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 1 August 2025.

Sat 6/913:30KTM - BKK

Nonstop3h 30mThai Airways

Sat 13/910:15BKK - KTM

Nonstop3h 25mThai Airways

Deal found 31/7£244

Wed 1/1011:10KTM - BKK

Nonstop3h 20mNepal Airlines

Fri 17/1016:45BKK - KTM

Nonstop3h 30mNepal Airlines

Deal found 1/8£404

Last-minute flights from Kathmandu to Southeast Asia
Discover last-minute flight deals from Kathmandu to Southeast Asia. Data last updated 1 August 2025 and is based on user searches.

Wed 6/817:30KTM - BKK

2 stops24h 05mMultiple Airlines

Sat 30/802:55BKK - KTM

2 stops18h 25mMultiple Airlines

Deal found 30/7£1,658

Wed 6/815:35KTM - BKK

3 stops27h 50mEmirates

Sat 9/817:00BKK - KTM

2 stops40h 15mEmirates

Deal found 31/7£1,678

Fri 8/822:45KTM - BKK

1 stop10h 15mMalaysia Airlines

Sun 17/814:15BKK - KTM

1 stop8h 45mMalaysia Airlines

Deal found 31/7£424

Mon 25/809:00KTM - BKK

2 stops32h 45mEmirates

Sun 31/802:40BKK - KTM

1 stop13h 10mEmirates

Deal found 30/7£1,467

Tue 26/816:20KTM - BKK

2 stops18h 20mMultiple Airlines

Mon 1/902:55BKK - KTM

2 stops18h 25mMultiple Airlines

Deal found 31/7£1,442

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 1 August 2025.

Mon 1/915:05KTM - BKK

1 stop30h 20mIndiGo

Deal found 1/8£138

Fri 29/823:30KTM - BKK

Nonstop3h 30mThai Airways

Deal found 30/7£143

Mon 1/914:00KTM - BKK

2 stops12h 30mMultiple Airlines

Deal found 1/8£173

Fri 29/814:00KTM - BKK

2 stops23h 25mAir India

Deal found 30/7£179

Sat 9/813:00KTM - BKK

1 stop8h 50mMalaysia Airlines

Deal found 31/7£286

Tue 13/116:35KTM - BKK

2 stops23h 25mChina Eastern

Deal found 31/7£291

Mon 24/1123:05KTM - BKK

1 stop15h 40mSingapore Airlines

Deal found 31/7£333

Thu 23/1010:35KTM - BKK

2 stops30h 55mHahn Air Systems

Deal found 1/8£372

Sat 29/1123:15KTM - BKK

1 stop10h 10mCathay Pacific

Deal found 31/7£397

Sat 23/823:55KTM - BKK

2 stops41h 50mEmirates

Deal found 30/7£984

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

KathmanduBangkok

KTM - BKK

KTMBKK

Kathmandu Tribhuvan

Sat 6/9

13:30-18:15

Nonstop3h 30m

Bangkok Suvarnabhumi

Sat 13/9

10:15-12:25

Nonstop3h 25m

£244

KathmanduBangkok

KTM - BKK

KTMBKK

Kathmandu Tribhuvan

Sat 6/9

06:30-20:25

1 stop12h 40m

Bangkok Suvarnabhumi

Sat 13/9

15:15-23:00

1 stop9h 00m

£260

KathmanduBangkok

KTM - BKK

KTMBKK

Kathmandu Tribhuvan

Wed 8/10

13:35-06:15

1 stop15h 25m

Bangkok Suvarnabhumi

Sat 18/10

13:55-12:15

1 stop23h 35m

£272

KathmanduBangkok

KTM - BKK

KTMBKK

Kathmandu Tribhuvan

Sat 24/1

13:00-23:10

1 stop8h 55m

Bangkok Suvarnabhumi

Mon 23/2

05:40-22:30

1 stop18h 05m

£285

KathmanduBangkok

KTM - BKK

KTMBKK

Kathmandu Tribhuvan

Sun 21/9

16:00-15:00

1 stop21h 45m

Bangkok Suvarnabhumi

Thu 25/9

16:15-17:45

1 stop26h 45m

£286

KathmanduBangkok

KTM - BKK

KTMBKK

Kathmandu Tribhuvan

Sat 6/9

13:30-18:15

Nonstop3h 30m

Bangkok Suvarnabhumi

Sat 13/9

12:20-14:05

1 stop27h 00m

£290

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

£404

KathmanduBangkok

KTM - BKK

KTMBKK

Kathmandu Tribhuvan

Sat 13/9

16:35-15:50

2 stops22h 00m

Bangkok Suvarnabhumi

Sat 20/9

19:15-15:35

2 stops21h 35m

£524

KathmanduBangkok

KTM - BKK

KTMBKK

Kathmandu Tribhuvan

Mon 1/9

15:05-22:40

1 stop30h 20m

£138

KathmanduBangkok

KTM - BKK

KTMBKK

Kathmandu Tribhuvan

Fri 29/8

23:30-04:15

Nonstop3h 30m

£143

Flights are sorted by cheapest return flights first.

Deals found on 1/8

Showing 1-10 of 18 results

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.

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

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

Currently, May is the cheapest month in which you can book a flight from Kathmandu to Southeast Asia (average of £718). Flying from Kathmandu to Southeast Asia in December is currently the most expensive (average of £1,123). 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?

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Kathmandu to Southeast Asia as you normally would.

Weekly flight availability from Kathmandu to Southeast Asia

The most flights from KTM to zzYJX are scheduled on a Wednesday (3 on average). You will have fewer flight options on Tuesday, which is when the least amount of flights are scheduled (1 on average).

Reviews of airlines servicing Southeast Asia

See what other customers who have flown with Emirates, Singapore Airlines, andThai Airways 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.

Emirates

8.1

Very Good

3,300 reviews

Check prices

Reviews

1 / 20

2.0

Mediocre

Anonymous,Jun 2025

KTM - DXB

Lost 7 pieces of luggage and fly Dubai doesn’t seem to care.

Emirates

8.1

Very Good

3,300 reviews

Emirates

8.1

Very Good

3,300 reviews

Check prices

Reviews

1 / 20

2.0

Mediocre

Anonymous,Jun 2025

KTM - DXB

Lost 7 pieces of luggage and fly Dubai doesn’t seem to care.

Singapore Airlines

8.1

Very Good

1,338 reviews

Emirates

8.1

Very Good

3,300 reviews

Check prices

Reviews

1 / 20

2.0

Mediocre

Anonymous,Jun 2025

KTM - DXB

Lost 7 pieces of luggage and fly Dubai doesn’t seem to care.

Thai Airways

7.8

Good

340 reviews

Emirates

8.1

Very Good

3,300 reviews

Check prices

Reviews

1 / 20

2.0

Mediocre

Anonymous,Jun 2025

KTM - DXB

Lost 7 pieces of luggage and fly Dubai doesn’t seem to care.

Cathay Pacific

7.6

Good

949 reviews

Emirates

8.1

Very Good

3,300 reviews

Check prices

Reviews

1 / 20

2.0

Mediocre

Anonymous,Jun 2025

KTM - DXB

Lost 7 pieces of luggage and fly Dubai doesn’t seem to care.

Malaysia Airlines

7.4

Good

271 reviews

Emirates

8.1

Very Good

3,300 reviews

Check prices

Reviews

1 / 20

2.0

Mediocre

Anonymous,Jun 2025

KTM - DXB

Lost 7 pieces of luggage and fly Dubai doesn’t seem to care.

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.
What are the cheapest airlines to fly from Kathmandu to Southeast Asia one-way?
To fly one-way, consider booking your trip with IndiGo, which is currently one of the cheapest options available, starting at £138. Thai Airways flights start at £143 while deals on Air India start at £179 one-way.
What are the cheapest flights from Kathmandu to Southeast Asia?
The cheapest flight price from Kathmandu to Southeast Asia is £217. On average you can expect to pay £348. The most popular route, (Kathmandu Tribhuvan - Bangkok Suvarnabhumi), can usually be booked for £154.
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, May is the cheapest month in which you can book a flight from Kathmandu to Southeast Asia (average of £718). Flying from Kathmandu to Southeast Asia in December is currently the most expensive (average of £1,123). 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

Browse thousands of different options on Cheapflights for your next trip

Alternative routes for Kathmandu to Southeast Asia

Kathmandu to Suvarnabhumi flights

Kathmandu to New Delhi flights

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Direct flights to

Top 7 airlines flying from Kathmandu to Southeast Asia

Airline	Cheapest	Average	Flexibility	On-time
Thai AirAsia	Cheapest£101	Average£241	FlexibilityNo cancel fee	On-time87%	Search Thai AirAsia flights
Thai Lion Air	Cheapest£174	Average£271	FlexibilityNo cancel fee	On-timeN/A	Search Thai Lion Air flights
Nepal Airlines	Cheapest£176	Average£290	FlexibilityNo cancel fee	On-timeN/A	Search Nepal Airlines flights
Thai Airways	Cheapest£228	Average£387	FlexibilityNo cancel fee	On-time77%	Search Thai Airways flights
Air India	Cheapest£289	Average£377	FlexibilityNo cancel fee	On-timeN/A	Search Air India flights
Singapore Airlines	Cheapest£311	Average£452	FlexibilityNo cancel fee	On-time81%	Search Singapore Airlines flights
Malaysia Airlines	Cheapest£376	Average£475	FlexibilityNo cancel fee	On-time67%	Search Malaysia Airlines flights

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How does Cheapflights help users find flights from Kathmandu to Southeast Asia?

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 £138

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 1/9. 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

Keep the following information in mind while searching for Kathmandu to Southeast Asia flight deals. Data was last updated 1 August 2025.

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Find 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 1 August 2025.

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 1 August 2025.

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

Everything you need to know about your flight from Kathmandu to Southeast Asia

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 1 August 2025.

Weekly flight availability from Kathmandu to Southeast Asia

Reviews of airlines servicing Southeast Asia

See what other customers who have flown with Emirates, Singapore Airlines, andThai Airways 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

Find useful and relevant information for your journey from Kathmandu to Southeast Asia. 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 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

See prices for flight routes from nearby airports that may be better suited for you.

Top 7 airlines flying from Kathmandu to Southeast Asia

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights from Kathmandu to Southeast Asia?

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

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

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 1 August 2025.