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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 1/9. Fares are subject to change and may not be available on all flights or dates of travel.
KTM — BKK
Dec 6 — Dec 131
Sat 12/6
Sat 12/13
1 adult, Economy
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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 November 6, 2025.

This Trip.com deal was found by Cheapflights users on 11/5. 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.
Mon 12/223:10 pmKTM - DMK
Nonstop3h 15mThai AirAsia
Mon 1/1211:45 amDMK - KTM
Nonstop3h 40mThai AirAsia
Deal found 11/5$211
This Booking.com deal was found by Cheapflights users on 11/5. 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.
Fri 12/123:10 pmKTM - DMK
Nonstop3h 15mThai AirAsia
Wed 12/1711:45 amDMK - KTM
Nonstop3h 40mThai AirAsia
Deal found 11/5$227
This Kiwi.com deal was found by Cheapflights users on 11/5. 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.
Wed 12/33:00 pmKTM - DMK
Nonstop3h 20mThai Lion Air
Wed 12/1011:50 amDMK - KTM
Nonstop3h 30mThai Lion Air
Deal found 11/5$229
This Booking.com deal was found by Cheapflights users on 11/5. 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.
Wed 12/33:10 pmKTM - DMK
Nonstop3h 15mThai AirAsia
Sun 12/1411:45 amDMK - KTM
Nonstop3h 40mThai AirAsia
Deal found 11/5$230
This Kiwi.com deal was found by Cheapflights users on 11/5. 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.
Mon 12/13:00 pmKTM - DMK
Nonstop3h 20mThai Lion Air
Mon 12/811:50 amDMK - KTM
Nonstop3h 30mThai Lion Air
Deal found 11/5$236
This Kiwi.com deal was found by Cheapflights users on 11/5. 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.
Mon 12/13:00 pmKTM - DMK
Nonstop3h 20mThai Lion Air
Sun 12/711:50 amDMK - KTM
Nonstop3h 30mThai Lion Air
Deal found 11/5$239
This Booking.com deal was found by Cheapflights users on 11/5. 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.
Wed 11/263:10 pmKTM - DMK
Nonstop3h 15mThai AirAsia
Wed 12/311:45 amDMK - KTM
Nonstop3h 40mThai AirAsia
Deal found 11/5$246
This Kiwi.com deal was found by Cheapflights users on 11/5. 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.
Fri 12/263:10 pmKTM - DMK
Nonstop3h 15mThai AirAsia
Fri 1/211:45 amDMK - KTM
Nonstop3h 40mThai AirAsia
Deal found 11/5$250
This FlightHub deal was found by Cheapflights users on 11/5. 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.
Sun 12/73:00 pmKTM - DMK
Nonstop3h 20mThai Lion Air
Sun 12/1411:50 amDMK - KTM
Nonstop3h 30mThai Lion Air
Deal found 11/5$258
This Kiwi.com deal was found by Cheapflights users on 11/6. 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.
Wed 11/193:00 pmKTM - DMK
Nonstop3h 20mThai Lion Air
Mon 12/111:50 amDMK - KTM
Nonstop3h 30mThai Lion Air
Deal found 11/6$259
This Trip.com deal was found by Cheapflights users on 11/6. 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.
Sun 11/303:00 pmKTM - DMK
Nonstop3h 20mMultiple Airlines
Wed 12/311:45 amDMK - KTM
Nonstop3h 40mMultiple Airlines
Deal found 11/6$260
This Trip.com deal was found by Cheapflights users on 11/5. 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.
Sun 11/163:10 pmKTM - DMK
Nonstop3h 15mThai AirAsia
Sun 11/2311:45 amDMK - KTM
Nonstop3h 40mThai AirAsia
Deal found 11/5$262

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 November 6, 2025.

Most accurate provider

Mytrip
3 stars

Most trusted provider

Mytrip
3 stars

Round-trip from

$211
(Trip.com)

One-way from

$125
(Kiwi.com)

Popular in

May

Cheapest in

June

Average price

$624
Provider with most accurate pricing for Kathmandu Tribhuvan-Manila Ninoy Aquino Intl flight deals.
Search Deals
Provider most trusted by Cheapflights users for Kathmandu Tribhuvan-Manila Ninoy Aquino Intl flights.
Search Deals
From Kathmandu Tribhuvan to Southeast Asia
Search Deals
One-way flight from Kathmandu Tribhuvan to Southeast Asia
Search Deals
High demand for flights, 0% potential price rise
Search Deals
Cheapest flight prices on average. 0% potential price decrease ($4 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in November 2025
Search Deals

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 November 6, 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

Mon 3/30

3:00 pm-7:40 pm

Nonstop3h 25m

Bangkok Don Mueang Intl

Fri 4/3

11:45 am-2:00 pm

Nonstop3h 30m

$243

KathmanduBangkok

KTM - DMK

KTMDMK

Kathmandu Tribhuvan

Fri 1/9

3:10 pm-7:40 pm

Nonstop3h 15m

Bangkok Don Mueang Intl

Mon 1/19

11:45 am-2:10 pm

Nonstop3h 40m

$251

KathmanduBangkok

KTM - DMK

KTMDMK

Kathmandu Tribhuvan

Fri 12/5

3:10 pm-7:40 pm

Nonstop3h 15m

Bangkok Don Mueang Intl

Fri 12/12

11:45 am-2:10 pm

Nonstop3h 40m

$260

KathmanduBangkok

KTM - DMK

KTMDMK

Kathmandu Tribhuvan

Sun 12/7

3:10 pm-7:40 pm

Nonstop3h 15m

Bangkok Don Mueang Intl

Sun 12/14

11:45 am-2:10 pm

Nonstop3h 40m

$265

KathmanduBangkok

KTM - DMK

KTMDMK

Kathmandu Tribhuvan

Fri 12/26

3:10 pm-7:40 pm

Nonstop3h 15m

Bangkok Don Mueang Intl

Fri 1/2

11:45 am-2:10 pm

Nonstop3h 40m

$270

KathmanduBangkok

KTM - DMK

KTMDMK

Kathmandu Tribhuvan

Mon 12/1

3:00 pm-7:35 pm

Nonstop3h 20m

Bangkok Don Mueang Intl

Mon 12/8

11:50 am-2:05 pm

Nonstop3h 30m

$282

KathmanduBangkok

KTM - DMK

KTMDMK

Kathmandu Tribhuvan

Mon 12/1

3:10 pm-7:40 pm

Nonstop3h 15m

Bangkok Don Mueang Intl

Fri 12/5

11:45 am-2:10 pm

Nonstop3h 40m

$295

KathmanduBangkok

KTM - DMK

KTMDMK

Kathmandu Tribhuvan

Mon 12/15

3:10 pm-7:40 pm

Nonstop3h 15m

Bangkok Don Mueang Intl

Fri 12/19

11:45 am-2:10 pm

Nonstop3h 40m

$302

KathmanduBangkok

KTM - DMK

KTMDMK

Kathmandu Tribhuvan

Fri 12/5

3:10 pm-7:40 pm

Nonstop3h 15m

Bangkok Don Mueang Intl

Fri 12/12

1:40 pm-12:15 am

1 stop11h 50m

$315

KathmanduBangkok

KTM - DMK

KTMDMK

Kathmandu Tribhuvan

Sun 11/30

3:00 pm-7:35 pm

Nonstop3h 20m

Bangkok Don Mueang Intl

Thu 12/4

4:50 pm-12:15 am

1 stop8h 40m

$317

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/6

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, October is the cheapest month in which you can book a flight from Kathmandu to Southeast Asia (average of $100). Flying from Kathmandu to Southeast Asia in November is currently the most expensive (average of $210). 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 November 6, 2025.

One of the essential ways to save on airfare from Kathmandu to Southeast Asia is to remain as flexible as possible. Flights that are at noon tend to be the most expensive. A flight in the afternoon could potentially save you up to 37% on airfare.

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

Use this chart to determine the cheapest time to fly round-trip from Kathmandu to Southeast Asia. Price data was last updated on November 2, 2025.

Travelers seeking maximum savings on their Kathmandu to Southeast Asia flight should consider departing on Wednesday mornings when fares are most often at their lowest. Friday evenings flights should be avoided if possible as fares are typically the most expensive at this time.

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 November 6, 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 (2 on average).

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 November 6, 2025.
Get a feel of what it's like to fly with Singapore Airlines, Thai Airways, and Thai AirAsia 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
1,393 reviews

Boarding

8.3

Entertainment

8.0

Food

7.7

Overall

8.1

Crew

8.6

Comfort

8.0

Reviews

1 / 20
10.0
Excellent

Anonymous,Jul 2025

DAD - SIN

Person in front laid back his seat. I’m quite tall found it difficult to sit straight lucky seat next to me was empty was able to stretch my legs. Eating my meal was difficult also as seat remained lowered
Singapore Airlines
8.1
Very good
1,393 reviews
Singapore Airlines
8.1
Very good
1,393 reviews

Boarding

8.3

Entertainment

8.0

Food

7.7

Overall

8.1

Crew

8.6

Comfort

8.0

Reviews

1 / 20
10.0
Excellent

Anonymous,Jul 2025

DAD - SIN

Person in front laid back his seat. I’m quite tall found it difficult to sit straight lucky seat next to me was empty was able to stretch my legs. Eating my meal was difficult also as seat remained lowered
Thai Airways
7.8
Good
361 reviews
Singapore Airlines
8.1
Very good
1,393 reviews

Boarding

8.3

Entertainment

8.0

Food

7.7

Overall

8.1

Crew

8.6

Comfort

8.0

Reviews

1 / 20
10.0
Excellent

Anonymous,Jul 2025

DAD - SIN

Person in front laid back his seat. I’m quite tall found it difficult to sit straight lucky seat next to me was empty was able to stretch my legs. Eating my meal was difficult also as seat remained lowered
Thai AirAsia
7.5
Good
217 reviews
Singapore Airlines
8.1
Very good
1,393 reviews

Boarding

8.3

Entertainment

8.0

Food

7.7

Overall

8.1

Crew

8.6

Comfort

8.0

Reviews

1 / 20
10.0
Excellent

Anonymous,Jul 2025

DAD - SIN

Person in front laid back his seat. I’m quite tall found it difficult to sit straight lucky seat next to me was empty was able to stretch my legs. Eating my meal was difficult also as seat remained lowered
Malaysia Airlines
7.3
Good
279 reviews
Singapore Airlines
8.1
Very good
1,393 reviews

Boarding

8.3

Entertainment

8.0

Food

7.7

Overall

8.1

Crew

8.6

Comfort

8.0

Reviews

1 / 20
10.0
Excellent

Anonymous,Jul 2025

DAD - SIN

Person in front laid back his seat. I’m quite tall found it difficult to sit straight lucky seat next to me was empty was able to stretch my legs. Eating my meal was difficult also as seat remained lowered
Air India
5.5
Fair
2,941 reviews
Singapore Airlines
8.1
Very good
1,393 reviews

Boarding

8.3

Entertainment

8.0

Food

7.7

Overall

8.1

Crew

8.6

Comfort

8.0

Reviews

1 / 20
10.0
Excellent

Anonymous,Jul 2025

DAD - SIN

Person in front laid back his seat. I’m quite tall found it difficult to sit straight lucky seat next to me was empty was able to stretch my legs. Eating my meal was difficult also as seat remained lowered

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.

  • How long is the flight from Kathmandu to Southeast Asia?

    For as low as $243, Thai AirAsia can have you in Southeast Asia from Kathmandu in 3h 25m. The distance between Kathmandu and Southeast Asia is about 1366 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

  • 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 $125. Users have also found prices from $139 and $184 on Thai Lion Air and IndiGo, 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 $490 for a flight from Kathmandu to Southeast Asia. The cheapest flight overall is $212 while the most popular route, (Kathmandu Tribhuvan - Bangkok Suvarnabhumi) is currently priced at $168.

  • 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, October is the cheapest month in which you can book a flight from Kathmandu to Southeast Asia (average of $100). Flying from Kathmandu to Southeast Asia in November is currently the most expensive (average of $210). 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 8 airlines flying from Kathmandu to Southeast Asia

Discover the top 8 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 November 6, 2025.
AirlineCheapestAverageFlexibilityOn-time
Thai AirAsiaCheapest$109Average$308FlexibilityNo cancel feeOn-time87%
Thai Lion AirCheapest$126Average$274FlexibilityNo cancel feeOn-timeN/A
Air IndiaCheapest$280Average$502FlexibilityNo cancel feeOn-timeN/A
Nepal AirlinesCheapest$280Average$349FlexibilityNo cancel feeOn-timeN/A
Thai AirwaysCheapest$327Average$549FlexibilityNo cancel feeOn-time77%
Malaysia AirlinesCheapest$375Average$610FlexibilityNo cancel feeOn-time67%
Singapore AirlinesCheapest$400Average$643FlexibilityNo cancel feeOn-time81%
Cathay PacificCheapest$547Average$577FlexibilityNo cancel feeOn-time72%

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