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$125+ 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 5/24. Fares are subject to change and may not be available on all flights or dates of travel.
KTM — BKK
May 4 — May 111
Sun 5/4
Sun 5/11
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 April 29, 2025.

Most accurate provider

Mytrip
3 stars

Most trusted provider

Mytrip
3 stars

Round-trip from

$239
(Trip.com)

One-way from

$125
(Priceline)

Popular in

April

Cheapest in

July

Average price

$640
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. 0% potential increase in price ($3 potential increase over avg. RT price).
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Cheapest flight prices on average. 0% potential price decrease ($3 potential savings vs. average RT price).
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Average for round-trip flights in April 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 April 29, 2025.

This Trip.com deal was found by Cheapflights users on 4/28. 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.
Tue 7/13:00 pmKTM - DMK
Nonstop3h 20mThai AirAsia
Fri 7/412:00 pmDMK - KTM
Nonstop3h 15mThai AirAsia
Deal found 4/28$239
This Trip.com deal was found by Cheapflights users on 4/28. 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 6/212:50 pmKTM - DMK
Nonstop3h 15mMultiple Airlines
Sun 6/2912:00 pmDMK - KTM
Nonstop3h 15mMultiple Airlines
Deal found 4/28$240
This CheapOair deal was found by Cheapflights users on 4/28. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/202:50 pmKTM - DMK
Nonstop3h 15mThai Lion Air
Tue 6/311:45 amDMK - KTM
Nonstop3h 20mThai Lion Air
Deal found 4/28$248
This Trip.com deal was found by Cheapflights users on 4/28. 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 6/215:30 pmKTM - BKK
1 stop19h 30mAir India
Sun 6/298:40 amBKK - KTM
1 stop9h 05mAir India
Deal found 4/28$280
This SmartFares deal was found by Cheapflights users on 4/28. 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 SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/251:15 pmKTM - BKK
1 stop22h 25mSriLankan Airlines
Tue 9/307:45 amBKK - KTM
1 stop30h 05mSriLankan Airlines
Deal found 4/28$309
This CheapOair deal was found by Cheapflights users on 4/28. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/49:35 pmKTM - KUL
Nonstop4h 30mMultiple Airlines
Wed 5/141:35 pmKUL - KTM
Nonstop4h 45mMultiple Airlines
Deal found 4/28$323
This Trip.com deal was found by Cheapflights users on 4/28. 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.
Wed 6/411:10 amKTM - BKK
Nonstop3h 20mNepal Airlines
Mon 6/94:45 pmBKK - KTM
Nonstop3h 30mNepal Airlines
Deal found 4/28$324
This Kiwi.com deal was found by Cheapflights users on 4/27. 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.
Thu 6/122:50 pmKTM - SIN
1 stop18h 05mMultiple Airlines
Thu 6/191:35 pmSIN - KTM
1 stop9h 15mMultiple Airlines
Deal found 4/27$345
This Gotogate deal was found by Cheapflights users on 4/28. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/181:35 pmKTM - BKK
1 stop15h 25mMultiple Airlines
Thu 6/263:00 amBKK - KTM
1 stop20h 45mMultiple Airlines
Deal found 4/28$345
This Mytrip deal was found by Cheapflights users on 4/28. 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.
Sat 6/2111:30 pmKTM - BKK
Nonstop3h 30mThai Airways
Sun 6/2910:15 amBKK - KTM
Nonstop3h 25mThai Airways
Deal found 4/28$380
This OneTravel deal was found by Cheapflights users on 4/28. 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.
Sun 5/119:25 pmKTM - KUL
Nonstop4h 40mBatik Air
Thu 5/1512:15 pmKUL - KTM
Nonstop4h 45mBatik Air
Deal found 4/28$394
This Malaysia Airlines deal was found by Cheapflights users on 4/27. 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 Malaysia Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/2410:45 pmKTM - BKK
1 stop13h 25mMalaysia Airlines
Fri 8/2911:05 amBKK - KTM
1 stop11h 55mMalaysia Airlines
Deal found 4/27$405

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 April 29, 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

Tue 7/1

3:00 pm-7:35 pm

Nonstop3h 20m

Bangkok Don Mueang Intl

Fri 7/4

12:00 pm-2:00 pm

Nonstop3h 15m

$239

KathmanduBangkok

KTM - DMK

KTMDMK

Kathmandu Tribhuvan

Sat 6/21

2:50 pm-7:20 pm

Nonstop3h 15m

Bangkok Don Mueang Intl

Sun 6/29

12:00 pm-2:00 pm

Nonstop3h 15m

$240

KathmanduBangkok

KTM - DMK

KTMDMK

Kathmandu Tribhuvan

Tue 5/20

2:50 pm-7:20 pm

Nonstop3h 15m

Bangkok Don Mueang Intl

Tue 6/3

11:45 am-1:50 pm

Nonstop3h 20m

$248

KathmanduBangkok

KTM - BKK

KTMBKK

Kathmandu Tribhuvan

Wed 6/18

7:35 am-4:55 pm

1 stop8h 05m

Bangkok Suvarnabhumi

Fri 6/27

10:25 pm-9:05 am

1 stop11h 55m

$280

KathmanduBangkok

KTM - BKK

KTMBKK

Kathmandu Tribhuvan

Thu 9/25

1:15 pm-12:55 pm

1 stop22h 25m

Bangkok Suvarnabhumi

Tue 9/30

7:45 am-12:35 pm

1 stop30h 05m

$309

KathmanduBangkok

KTM - BKK

KTMBKK

Kathmandu Tribhuvan

Wed 6/4

11:10 am-3:45 pm

Nonstop3h 20m

Bangkok Suvarnabhumi

Mon 6/9

4:45 pm-7:00 pm

Nonstop3h 30m

$324

KathmanduSingapore

KTM - SIN

KTMSIN

Kathmandu Tribhuvan

Thu 6/12

2:50 pm-11:10 am

1 stop18h 05m

Singapore Changi

Thu 6/19

1:35 pm-8:35 pm

1 stop9h 15m

$345

KathmanduBangkok

KTM - BKK

KTMBKK

Kathmandu Tribhuvan

Wed 6/18

1:35 pm-6:15 am

1 stop15h 25m

Bangkok Suvarnabhumi

Thu 6/26

3:00 am-10:30 pm

1 stop20h 45m

$345

KathmanduBangkok

KTM - BKK

KTMBKK

Kathmandu Tribhuvan

Sat 6/21

11:30 pm-4:15 am

Nonstop3h 30m

Bangkok Suvarnabhumi

Sat 6/28

8:20 pm-10:30 pm

Nonstop3h 25m

$380

KathmanduKuala Lumpur

KTM - KUL

KTMKUL

Kathmandu Tribhuvan

Sun 5/11

9:25 pm-4:20 am

Nonstop4h 40m

Kuala Lumpur Intl

Thu 5/15

12:15 pm-2:45 pm

Nonstop4h 45m

$394

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/28

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 April 29, 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 April 29, 2025.

The most flights from KTM to zzYJX are scheduled on a Monday (3 on average). You will have fewer flight options on Friday, 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 April 29, 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
1,292 reviews

Overall

8.1

Entertainment

8.0

Food

7.7

Crew

8.6

Boarding

8.2

Comfort

7.9

Reviews

1 / 20
6.0
Good

Pierre,Apr 2025

MLE - SIN

3 boarding pass checkpoints at the gate. Long line before boarding. Poor leg room in economy.. Flight crew rounds practically non existent during flight.
Singapore Airlines
8.1
Very good
1,292 reviews
Singapore Airlines
8.1
Very good
1,292 reviews

Overall

8.1

Entertainment

8.0

Food

7.7

Crew

8.6

Boarding

8.2

Comfort

7.9

Reviews

1 / 20
6.0
Good

Pierre,Apr 2025

MLE - SIN

3 boarding pass checkpoints at the gate. Long line before boarding. Poor leg room in economy.. Flight crew rounds practically non existent during flight.
Emirates
8.0
Very good
3,213 reviews
Singapore Airlines
8.1
Very good
1,292 reviews

Overall

8.1

Entertainment

8.0

Food

7.7

Crew

8.6

Boarding

8.2

Comfort

7.9

Reviews

1 / 20
6.0
Good

Pierre,Apr 2025

MLE - SIN

3 boarding pass checkpoints at the gate. Long line before boarding. Poor leg room in economy.. Flight crew rounds practically non existent during flight.
Thai Airways
7.7
Good
325 reviews
Singapore Airlines
8.1
Very good
1,292 reviews

Overall

8.1

Entertainment

8.0

Food

7.7

Crew

8.6

Boarding

8.2

Comfort

7.9

Reviews

1 / 20
6.0
Good

Pierre,Apr 2025

MLE - SIN

3 boarding pass checkpoints at the gate. Long line before boarding. Poor leg room in economy.. Flight crew rounds practically non existent during flight.
China Southern
7.5
Good
95 reviews
Singapore Airlines
8.1
Very good
1,292 reviews

Overall

8.1

Entertainment

8.0

Food

7.7

Crew

8.6

Boarding

8.2

Comfort

7.9

Reviews

1 / 20
6.0
Good

Pierre,Apr 2025

MLE - SIN

3 boarding pass checkpoints at the gate. Long line before boarding. Poor leg room in economy.. Flight crew rounds practically non existent during flight.
Thai AirAsia
7.5
Good
208 reviews
Singapore Airlines
8.1
Very good
1,292 reviews

Overall

8.1

Entertainment

8.0

Food

7.7

Crew

8.6

Boarding

8.2

Comfort

7.9

Reviews

1 / 20
6.0
Good

Pierre,Apr 2025

MLE - SIN

3 boarding pass checkpoints at the gate. Long line before boarding. Poor leg room in economy.. Flight crew rounds practically non existent during flight.

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 Lion Air. According to our data, you can fly for as low as $125. Users have also found prices from $128 and $172 on Thai AirAsia and SriLankan 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 - Kuala Lumpur Intl as they are the most popular.

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

    On average you can expect to pay $555 for a flight from Kathmandu to Southeast Asia. The cheapest flight overall is $247 while the most popular route, (Kathmandu Tribhuvan - Bangkok Suvarnabhumi) is currently priced at $198.

  • 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

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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 April 29, 2025.
AirlineCheapestAverageFlexibilityOn-time
Thai AirAsiaCheapest$169Average$397FlexibilityNo cancel feeOn-time87%
Thai Lion AirCheapest$205Average$319FlexibilityNo cancel feeOn-timeN/A
Nepal AirlinesCheapest$305Average$368FlexibilityNo cancel feeOn-timeN/A
Biman BangladeshCheapest$340Average$375FlexibilityNo cancel feeOn-time45%
Thai AirwaysCheapest$351Average$532FlexibilityNo cancel feeOn-time77%
Singapore AirlinesCheapest$424Average$580FlexibilityNo cancel feeOn-time81%
Malaysia AirlinesCheapest$516Average$580FlexibilityNo cancel feeOn-time67%
Air IndiaCheapest$534Average$595FlexibilityNo cancel feeOn-timeN/A
China SouthernCheapest$561Average$766FlexibilityNo cancel feeOn-time69%

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