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$139+ Cheap flights from Kathmandu (KTM) to Southeast Asia

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 5/30. Fares are subject to change and may not be available on all flights or dates of travel.
KTM — BKK
Apr 5 — Apr 121
Sat 4/5
Sat 4/12
1 adult, Economy
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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 March 31, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$220
(OneTravel)

One-way from

$139
(Booking.com)

Popular in

April

Cheapest in

August

Average price

$563
Provider with most accurate pricing for Kathmandu Tribhuvan-Manila Ninoy Aquino Intl flight deals.
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Provider most trusted by Cheapflights users for Kathmandu Tribhuvan-Manila Ninoy Aquino Intl flights.
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From Kathmandu Tribhuvan to Southeast Asia
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One-way flight from Kathmandu Tribhuvan to Southeast Asia
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Highest demand for flights based on searches. 2% potential increase in price ($18 potential increase over avg. RT price).
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Cheapest flight prices on average. 0% potential price decrease ($6 potential savings vs. average RT price).
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Average for round-trip flights in March 2025
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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 March 31, 2025.

This OneTravel deal was found by Cheapflights users on 3/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure OneTravel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/93:00 pmKTM - DMK
Nonstop3h 20mMultiple Airlines
Sun 7/2011:45 amDMK - KTM
Nonstop3h 20mMultiple Airlines
Deal found 3/30$220
This Booking.com deal was found by Cheapflights users on 3/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 6/153:00 pmKTM - DMK
Nonstop3h 20mThai AirAsia
Mon 6/2312:00 pmDMK - KTM
Nonstop3h 15mThai AirAsia
Deal found 3/30$230
This FlightHub deal was found by Cheapflights users on 3/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/1411:10 amKTM - BKK
Nonstop3h 20mNepal Airlines
Wed 5/214:45 pmBKK - KTM
Nonstop3h 30mNepal Airlines
Deal found 3/30$334
This Mytrip deal was found by Cheapflights users on 3/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/1411:30 pmKTM - KUL
1 stop10h 30mMultiple Airlines
Wed 5/214:00 pmKUL - KTM
1 stop22h 30mMultiple Airlines
Deal found 3/30$347
This Kiwi.com deal was found by Cheapflights users on 3/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 4/62:50 pmKTM - DMK
Nonstop3h 15mThai Lion Air
Sun 4/1311:45 amDMK - KTM
Nonstop3h 20mThai Lion Air
Deal found 3/31$376
This Mytrip deal was found by Cheapflights users on 3/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 6/11:30 pmKTM - BKK
Nonstop3h 30mThai Airways
Wed 6/1110:15 amBKK - KTM
Nonstop3h 25mThai Airways
Deal found 3/30$378
This Mytrip deal was found by Cheapflights users on 3/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 6/11:30 pmKTM - BKK
Nonstop3h 30mMultiple Airlines
Wed 6/118:20 amBKK - KTM
1 stop28h 45mMultiple Airlines
Deal found 3/30$387
This Trip.com deal was found by Cheapflights users on 3/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/257:35 amKTM - BKK
1 stop11h 35mAir India
Wed 4/3010:25 pmBKK - KTM
1 stop9h 25mAir India
Deal found 3/31$391
This FlightHub deal was found by Cheapflights users on 3/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/319:05 pmKTM - KUL
1 stop21h 35mAir India
Tue 1/138:05 amKUL - KTM
1 stop14h 15mAir India
Deal found 3/30$395
This Trip.com deal was found by Cheapflights users on 3/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/243:45 pmKTM - KUL
Nonstop4h 45mBatik Air
Wed 5/281:35 pmKUL - KTM
Nonstop4h 45mBatik Air
Deal found 3/30$401
This Mytrip deal was found by Cheapflights users on 3/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/113:00 pmKTM - SIN
1 stop16h 20mThai AirAsia
Sat 5/172:40 pmSIN - KTM
1 stop25h 35mThai AirAsia
Deal found 3/30$415
This Mytrip deal was found by Cheapflights users on 3/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/284:40 pmKTM - SIN
2 stops23h 35mMultiple Airlines
Mon 5/52:40 pmSIN - KTM
1 stop25h 25mMultiple Airlines
Deal found 3/31$459

Cheapflights Fare Finder

Customize 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, Cheapflights users made 2,558,603 searches. Data last updated March 31, 2025.
Use the filters below to find and compare flights from Kathmandu to Southeast Asia that are best for you.

Fly from

Kathmandu

Fly to

Southeast Asia

Route

Depart

Return

Price

KathmanduBangkok

KTM - DMK

KTMDMK

Kathmandu Tribhuvan

Wed 7/9

3:00 pm-7:35 pm

Nonstop3h 20m

Bangkok Don Mueang Intl

Sun 7/20

11:45 am-1:50 pm

Nonstop3h 20m

$220

KathmanduBangkok

KTM - DMK

KTMDMK

Kathmandu Tribhuvan

Sun 6/15

3:00 pm-7:35 pm

Nonstop3h 20m

Bangkok Don Mueang Intl

Mon 6/23

12:00 pm-2:00 pm

Nonstop3h 15m

$230

KathmanduBangkok

KTM - BKK

KTMBKK

Kathmandu Tribhuvan

Wed 5/14

11:10 am-3:45 pm

Nonstop3h 20m

Bangkok Suvarnabhumi

Wed 5/21

4:45 pm-7:00 pm

Nonstop3h 30m

$321

KathmanduKuala Lumpur

KTM - KUL

KTMKUL

Kathmandu Tribhuvan

Wed 5/14

11:30 pm-12:15 pm

1 stop10h 30m

Kuala Lumpur Intl

Wed 5/21

4:00 pm-12:15 pm

1 stop22h 30m

$347

KathmanduBangkok

KTM - BKK

KTMBKK

Kathmandu Tribhuvan

Sun 6/1

1:30 pm-6:15 pm

Nonstop3h 30m

Bangkok Suvarnabhumi

Wed 6/11

10:15 am-12:25 pm

Nonstop3h 25m

$378

KathmanduBangkok

KTM - BKK

KTMBKK

Kathmandu Tribhuvan

Sun 6/1

1:30 pm-6:15 pm

Nonstop3h 30m

Bangkok Suvarnabhumi

Tue 6/10

3:00 am-10:30 pm

1 stop20h 45m

$387

KathmanduBangkok

KTM - BKK

KTMBKK

Kathmandu Tribhuvan

Wed 4/16

7:35 am-8:25 pm

1 stop11h 35m

Bangkok Suvarnabhumi

Wed 4/23

5:55 pm-6:35 am

1 stop13h 55m

$397

KathmanduKuala Lumpur

KTM - KUL

KTMKUL

Kathmandu Tribhuvan

Sat 5/24

3:45 pm-10:45 pm

Nonstop4h 45m

Kuala Lumpur Intl

Wed 5/28

1:35 pm-4:05 pm

Nonstop4h 45m

$401

KathmanduSingapore

KTM - SIN

KTMSIN

Kathmandu Tribhuvan

Sun 5/11

3:00 pm-9:35 am

1 stop16h 20m

Singapore Changi

Sat 5/17

2:40 pm-2:00 pm

1 stop25h 35m

$415

KathmanduBangkok

KTM - BKK

KTMBKK

Kathmandu Tribhuvan

Fri 4/11

4:00 pm-3:00 pm

1 stop21h 45m

Bangkok Suvarnabhumi

Sun 5/4

4:15 pm-5:45 pm

1 stop26h 45m

$459

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/31

Showing 1-10 of 60 results
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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 round-trip 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, March is the cheapest month in which you can book a flight from Kathmandu to Southeast Asia (average of $958). Flying from Kathmandu to Southeast Asia in December is currently the most expensive (average of $1,574). 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?

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 March 31, 2025.

When flying from Kathmandu to Southeast Asia, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Weekly flight availability from Kathmandu to Southeast Asia

Explore weekly flight availability from Kathmandu to Southeast Asia. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated March 31, 2025.

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 (1 on average).

Rainfall in Southeast Asia by month

Plan your trip to Southeast Asia by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Southeast Asia ranges from 0.4 - 15.7 inches per month. July is typically the wettest month, when rainfall can reach 15.7 in. February is typically the driest time to visit Southeast Asia when rainfall is around 0.4 in.

Temperature in Southeast Asia by month

Plan your trip to Southeast Asia by taking into account the average temperature totals by month.

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 84.2 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 78.8 F).

Reviews of airlines servicing Southeast Asia

Get insights into the airlines that provide service to Southeast Asia. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Southeast Asia. Reviews last updated March 31, 2025.
Get a feel of what it's like to fly with Singapore Airlines, Emirates and Thai Airways from Kathmandu to Southeast Asia by reading reviews from past customers. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Singapore Airlines
8.1
Very good
1,286 reviews

Comfort

7.9

Crew

8.6

Entertainment

8.0

Overall

8.1

Boarding

8.2

Food

7.7

Reviews

1 / 20
8.0
Excellent

Anonymous,Dec 2024

NRT - LAX

Crew and in flight experience were great! I felt safe in the plane. Only downside was sitting in economy and the seat/person in front of me who had their seat reclined most of the flight (9 hrs) which made it difficult to eat or be fully comfortable.
Singapore Airlines
8.1
Very good
1,286 reviews
Singapore Airlines
8.1
Very good
1,286 reviews

Comfort

7.9

Crew

8.6

Entertainment

8.0

Overall

8.1

Boarding

8.2

Food

7.7

Reviews

1 / 20
8.0
Excellent

Anonymous,Dec 2024

NRT - LAX

Crew and in flight experience were great! I felt safe in the plane. Only downside was sitting in economy and the seat/person in front of me who had their seat reclined most of the flight (9 hrs) which made it difficult to eat or be fully comfortable.
Emirates
8.0
Very good
3,192 reviews
Singapore Airlines
8.1
Very good
1,286 reviews

Comfort

7.9

Crew

8.6

Entertainment

8.0

Overall

8.1

Boarding

8.2

Food

7.7

Reviews

1 / 20
8.0
Excellent

Anonymous,Dec 2024

NRT - LAX

Crew and in flight experience were great! I felt safe in the plane. Only downside was sitting in economy and the seat/person in front of me who had their seat reclined most of the flight (9 hrs) which made it difficult to eat or be fully comfortable.
Thai Airways
7.8
Good
319 reviews
Singapore Airlines
8.1
Very good
1,286 reviews

Comfort

7.9

Crew

8.6

Entertainment

8.0

Overall

8.1

Boarding

8.2

Food

7.7

Reviews

1 / 20
8.0
Excellent

Anonymous,Dec 2024

NRT - LAX

Crew and in flight experience were great! I felt safe in the plane. Only downside was sitting in economy and the seat/person in front of me who had their seat reclined most of the flight (9 hrs) which made it difficult to eat or be fully comfortable.
Cathay Pacific
7.5
Good
841 reviews
Singapore Airlines
8.1
Very good
1,286 reviews

Comfort

7.9

Crew

8.6

Entertainment

8.0

Overall

8.1

Boarding

8.2

Food

7.7

Reviews

1 / 20
8.0
Excellent

Anonymous,Dec 2024

NRT - LAX

Crew and in flight experience were great! I felt safe in the plane. Only downside was sitting in economy and the seat/person in front of me who had their seat reclined most of the flight (9 hrs) which made it difficult to eat or be fully comfortable.
China Southern
7.5
Good
94 reviews
Singapore Airlines
8.1
Very good
1,286 reviews

Comfort

7.9

Crew

8.6

Entertainment

8.0

Overall

8.1

Boarding

8.2

Food

7.7

Reviews

1 / 20
8.0
Excellent

Anonymous,Dec 2024

NRT - LAX

Crew and in flight experience were great! I felt safe in the plane. Only downside was sitting in economy and the seat/person in front of me who had their seat reclined most of the flight (9 hrs) which made it difficult to eat or be fully comfortable.

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?

    For a flight from Kathmandu to Southeast Asia, you will be flying from Tribhuvan. Kathmandu Tribhuvan (KTM) is just 2.5 mi from the center of the city.

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

    For one-way options, check prices for Thai AirAsia. According to our data, you can fly for as low as $139. Users have also found prices from $153 and $217 on Thai Lion Air and Nepal Airlines, respectively.

  • What are the most popular routes from Kathmandu to Southeast Asia?

    When deciding which route to take from Kathmandu to Southeast Asia consider Kathmandu Tribhuvan - Bangkok Suvarnabhumi, Kathmandu Tribhuvan - Singapore Changi or Kathmandu Tribhuvan - Denpasar Bali Ngurah Rai as they are the most popular.

  • What are the cheapest flights from Kathmandu to Southeast Asia?

    On average you can expect to pay $594 for a flight from Kathmandu to Southeast Asia. The cheapest flight overall is $244 while the most popular route, (Kathmandu Tribhuvan - Bangkok Suvarnabhumi) is currently priced at $170.

  • 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 vacation 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 $958). Flying from Kathmandu to Southeast Asia in December is currently the most expensive (average of $1,574). 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

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Top 9 airlines flying from Kathmandu to Southeast Asia

Discover the top 9 airlines that operate flights from Kathmandu to Southeast Asia. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated March 31, 2025.
AirlineCheapestAverageFlexibilityOn-time
Thai AirAsiaCheapest$166Average$409FlexibilityNo cancel feeOn-time87%
Thai Lion AirCheapest$194Average$318FlexibilityNo cancel feeOn-timeN/A
Nepal AirlinesCheapest$305Average$375FlexibilityNo cancel feeOn-timeN/A
Thai AirwaysCheapest$326Average$530FlexibilityNo cancel feeOn-time77%
Biman BangladeshCheapest$340Average$375FlexibilityNo cancel feeOn-time45%
Malaysia AirlinesCheapest$411Average$590FlexibilityNo cancel feeOn-time67%
Singapore AirlinesCheapest$424Average$587FlexibilityNo cancel feeOn-time81%
Air IndiaCheapest$534Average$593FlexibilityNo cancel feeOn-timeN/A
China SouthernCheapest$561Average$766FlexibilityNo cancel feeOn-time69%
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