$182 Find Cheap Flights from Kathmandu to Southeast Asia

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Kathmandu to Southeast Asia departing on 8/2. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

KAYAK searches hundreds of travel sites at once for deals on flights to Southeast Asia

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Kathmandu to Southeast Asia.
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Kathmandu to Southeast Asia.
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Flight Deals

Cheap Flights from Kathmandu to Southeast Asia

Cheapest round-trip prices found by our users on KAYAK in the last 72 hours
Bangkok
Bangkok1 stop$311
Manila
Manila2 stops$561
Singapore
Singapore1 stop$411
Denpasar
Denpasar1 stop$553
Hanoi
Hanoi1 stop$458
Phuket City
Phuket City1 stop$381
Chiang Mai
Chiang Mai1 stop$482
Bangkok
Bangkok1 stop$311
Manila
Manila2 stops$561
Singapore
Singapore1 stop$411
Denpasar
Denpasar1 stop$553
Hanoi
Hanoi1 stop$458
Phuket City
Phuket City1 stop$381
Chiang Mai
Chiang Mai1 stop$482

Book Cheap Kathmandu to Southeast Asia Plane Tickets

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Kathmandu to Southeast Asia that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Kathmandu to Southeast Asia

Sun, Jun 21 - Sun, Jun 28
SriLankan Airlines Logo
1:15 pm - 6:15 am
KTM
-
BKK
15h 45m
1 stop
SriLankan Airlines Logo
7:45 am - 12:15 pm
BKK
-
KTM
29h 45m
1 stop
$311SriLankan Airlines
Thu, Jul 16 - Wed, Jul 22
SriLankan Airlines Logo
1:15 pm - 12:45 pm
KTM
-
BKK
22h 15m
1 stop
SriLankan Airlines Logo
3:20 pm - 12:15 pm
BKK
-
KTM
22h 10m
1 stop
$312SriLankan Airlines
Fri, Jul 10 - Mon, Jul 13
Air India Logo
6:30 am - 5:50 am
KTM
-
KUL
21h 05m
1 stop
Air India Logo
6:50 am - 4:30 pm
KUL
-
KTM
11h 55m
1 stop
$352Air India
Mon, Aug 3 - Mon, Aug 10
Thai AirAsia Logo
3:10 pm - 7:50 pm
KTM
-
DMK
3h 25mnonstop
Thai AirAsia Logo
11:55 am - 2:10 pm
DMK
-
KTM
3h 30mnonstop
$395Thai AirAsia
Mon, Aug 3 - Fri, Aug 7
Thai AirAsia Logo
3:10 pm - 7:50 pm
KTM
-
DMK
3h 25mnonstop
Thai AirAsia Logo
11:55 am - 2:10 pm
DMK
-
KTM
3h 30mnonstop
$396Thai AirAsia
Tue, Aug 25 - Sun, Aug 30
Malaysia Airlines Logo
1:00 pm - 9:05 am
KTM
-
SIN
17h 50m
1 stop
Malaysia Airlines Logo
7:15 pm - 9:45 pm
SIN
-
KTM
28h 45m
1 stop
$411Malaysia Airlines
Tue, Sep 1 - Tue, Sep 15
Air India Logo
6:45 am - 9:45 pm
KTM
-
SIN
12h 45m
1 stop
Air India Logo
11:00 pm - 1:40 pm
SIN
-
KTM
16h 55m
1 stop
$452Air India
Fri, Jun 19 - Fri, Jun 26
Malaysia Airlines Logo
10:45 pm - 10:15 am
KTM
-
SIN
9h 15m
1 stop
Malaysia Airlines Logo
9:15 pm - 12:00 pm
SIN
-
KTM
17h 00m
1 stop
$489Malaysia Airlines
Sun, Aug 16 - Sat, Sep 12
Singapore Airlines Logo
10:50 pm - 12:45 pm
KTM
-
MNL
11h 40m
1 stop
Singapore Airlines Logo
2:00 pm - 9:30 pm
MNL
-
KTM
9h 45m
1 stop
$569Singapore Airlines
Sun, Aug 16 - Sat, Sep 12
Singapore Airlines Logo
10:50 pm - 11:35 am
KTM
-
MNL
10h 30m
1 stop
Singapore Airlines Logo
6:35 pm - 9:30 pm
MNL
-
KTM
29h 10m
1 stop
$570Singapore Airlines
Booking Insights

KAYAK's insights & trends for Kathmandu to Southeast Asia flights

Get data-powered insights and trends into flights from Kathmandu to Southeast Asia to help you find the cheapest flights, the best time to fly and much more.

What is the cheapest Kathmandu to Southeast Asia flight route?

Data is based on round-trip flight searches on KAYAK over the past month.

The cheapest ticket to Southeast Asia from Kathmandu found in the last 3 days was to Bangkok, at $379 round-trip. The most popular route is from Kathmandu (KTM) to Bangkok Suvarnabhumi Airport (BKK), and the cheapest round-trip airline ticket found on this route in the last 3 days was $379.

What is the cheapest time of day to fly to Southeast Asia?

The average price for all round-trip flights from Kathmandu to Southeast Asia depending on the time of departure, clicked by users on KAYAK in the last 2 weeks.

The cheapest time of day to fly to Southeast Asia is generally in the evening, when round-trip flights cost $245 on average. Morning departures are around 30% more expensive than evening flights, on average. The most expensive time of day to fly to Southeast Asia is generally at night, which is peak travel time and where the average cost of a ticket is $566.

Can I save money by flying with a layover from Kathmandu to Southeast Asia?

The average round-trip price for all non-stop flights, flights with one layover, and flights with two layovers for the route found by users searching on KAYAK in the last 2 weeks.

No, with an average price for the route of $520, prices are generally cheapest when you fly direct.

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

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Kathmandu to Southeast Asia, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from Kathmandu to Southeast Asia is October, when tickets cost $99 (return) on average. On the other hand, the most expensive months are May and December, when the average cost of round-trip tickets is $247 and $207 respectively.

What’s the cheapest day of the week to fly from Kathmandu to Southeast Asia?

The average price of all round-trip flights from Kathmandu to Southeast Asia clicked on KAYAK for each day over the last 12 months.

When flying from Kathmandu to Southeast Asia, you should consider leaving on a Sunday and avoid Thursdays if you are looking for the best rates. For your return to Kathmandu, you’ll find the best rates on Wednesdays and the most expensive ones on Fridays.

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

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from Kathmandu to Southeast Asia, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

To get a below average price on the flight from Kathmandu to Southeast Asia, you should book around 9 weeks before departure, which saves you about 19% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 25 weeks before departure.

Good to know

Low seasonApril
Cheapest flight$182
Best time to beat the crowds but there is an average 11% increase in price.
Most popular time to fly and prices are also 3% lower on average.
Flight from Kathmandu to Bangkok Suvarnabhumi Airport

FAQs - booking Southeast Asia flights

  • How does KAYAK find such low prices on flights from Kathmandu to Southeast Asia?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Kathmandu to Southeast Asia.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Kathmandu to Southeast Asia?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight from Kathmandu to Southeast Asia is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Kathmandu to Southeast Asia?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly from Kathmandu to Southeast Asia with an airline and back with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Kathmandu to Southeast Asia?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying from Kathmandu to Southeast Asia up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Top tips for finding cheap flights to Southeast Asia

  • Looking for a cheap flight? 25% of our users found tickets from Kathmandu to the following destinations at these prices or less: Bangkok $404 one-way - $414 round-trip; Kuala Lumpur $409 one-way - $490 round-trip; Singapore $712 one-way - $495 round-trip

Reviews of the top 5 airlines serving from Kathmandu to Southeast Asia

 
See real verified KAYAK customer reviews for airlines flying from Kathmandu to Southeast Asia. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Kathmandu to Southeast Asia? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
8.2
Singapore AirlinesOverall score based on 1522 reviews
8.0Entertainment
8.3Boarding
8.6Crew
7.8Food
8.0Comfort
Airline reviews

Food was terrible , uncomfortable seats, WiFi did not work, will never fly Singapore again.

2.0 MediocreAnonymous, May 2026
LAX - NRT
Read more Singapore Airlines reviews

Food was terrible , uncomfortable seats, WiFi did not work, will never fly Singapore again.

Fast and efficient flight. Wifi worked well. Food selection could have been better

Kayak really screwed up by offloading the booking to a third party. They were completely inept and caused a bunch of toil. I will never use Kayak again.

They ran out of the second choice of food was stuck with fish

First time flying with Singapore airlines and I’ll give them two thumbs up 👍 👍

Excellent service. I pre-ordered gluten intolerant meal and they handle it with care. They served me my meal before other people's to avoid crossed contamination. Thank you 🙏

No frills airline with minimal leg room and no entertainment

a completely full flight - felt quite carmped in, despite being on the window seat. Meal served could better. Surely different from pre-covid trips I used to take to and from Bangkok.

Best service airline. The cabin crew is attentive and friendly. Inflight entertainment system is good

I was in a middle seat where I felt a bit too cramped otherwise the trip was good

HAVING ANNOUNCEMENTS FOR PEOPLE TO BOARD ACCORDING TO GROUP IS ESSENTIAL N ENSURING N CUTTING OF QUEUES, EXCEPT FOR PRIORITY CLASS PASSENGERS ON A SEPARATE Q

We still get drinks and a snack. Love the gift bags too.

business class is old but still done very well by the team.

Excellent airline. The plane was clean and the staff were very attentive

Good experience although the boarding gate is at the terminal extension hence need to leave lounge to head over earlier.

Thai Royal First is very good. Easy check in , Private room in the first class lounge and escort from ticketing to the plane. Once on board crew was very polite, food was outstanding, and the ride was smooth as silk. Restrooms were especially clean. Great Experience

I'm not interested in improving the airline. Therefore, I won't explain this in more detail. Next time I'll try a different one.

The flight (boarding) was delayed by 40-50 minutes and there was very crowed. They need to improve on the timeliness & boarding process. (They asked passenger to board in groups, but the 2nd group was standing there waiting for 20 minutes!). However, services from the crew was very good, also the food was good as well. I also found the legroom was quite comfortable.

Need to improve on punctuality. My flight was delayed by 1 hour.

Seats were uncomfortable and the vegetarian meal was awful. Some of the entertainment didn't work.

The crews were very professional and courteous. Pleasant flight and thank you!

They wouldn't let me on the plane. The 3rd party apparently didn't pay for the tickets properly?

Overall experience is good but if the food menu can change to authentic Malaysia food will be good. I.e. Nasi Lemak, Char Kueh Tiew and etc

Surprised that the safety briefing was only conducted in Malay language and no English despite there are foreigners on board. MH should take safety more seriously.

Flights were delayed, Food was good but only 1 meal instead of 2.

Food was good but only 1 meal and 1 pie, instead of 2 meals. Both legs were late.

We are row 11, when the crew came to us, only one meal choice was available.

OK seats comfortable, easy boarding/embarking, excellent connection to domestic Malaysia flight with baggage checked through without customs. Catering especially drinks borderline ok luckily less important aspect

Comfortable seats in economy, managed a few hours sleep in an o night flight but the food was terrible. Surprising as Malaysia airlines has been good in the past. Service was mediocre this time too.

Vast improvement needed in customer service. I couldn’t get the drink of my choice during both meals (i.e. sparking water and Diet Coke). I had used plastic cups falling onto me from the tray. No eye contact when they thank you on the way out signalling an insincere thank you.

the rudest staff in the world!!! we had overweight baggage, which is our fault but it is a really stupid rule, and the woman said we could reorganise or pay now, we said we’d reorganise and she started shouting “do it now! hurry up!” even though the flight wasn’t even boarding yet. She told us that if our two cabin bags were below 14 together, then we wouldn’t have to pay 500k dong. We reorganised and our bags were below 14kg. She then said that it was all of our bags together that should be less than 14kg. We were obviously confused by this, because she had just said that it was our two cabin bags and we asked her why she told us to rearrange our bags then. She started shouting at us again saying that we needed to “pay now or throw away”. We said fine, we’ll just pay, and she suddenly started asking for 1.51 million dong. I asked her why it was suddenly over three times the price and she said that it was always that price. I asked to see the other piece of paper she had that had the other price and she slammed her one on top of it and started shouting “pay now or i’ll close the gate” (boarding was already finishing at this point). So, we had no choice but to pay three times the original price, even though we reorganised our cabin bags to be under the necessary weight like she had asked us to. I wouldn’t even be so upset about the money if the staff were at least a little bit nice. She was possibly the rudest, most ignorant woman I have ever met in my life. Besides that, the plane/flight was just a bit worse than ryanair standard. Small seats, delayed by an hour. Typical low budget. At least the ryanair staff don’t try to scam you. Avoid at all costs, it’s not worth the hassle of dealing with such horrible people.

The boarding process took very long, partly due to passengers on incoming flight took too long to deplane

The flight left on time and landed early. The attendants were polite and friendly. Thank you

Efficient and fast check in, courteous staff at counter and on board. On time departure and arrival. AIR ASIA is my favorite international thailand carrier for reasonable cost and excellent customer service!

Delayed us three times, changed gates twice, and then tried to charge for food on the plane.

Not good in terms of amenities. For over 6 hours they don’t even provide complementary drinks or snacks-forget about dinner or lunch.

Air Asia just dreadfull. Always poorest customer service and very unwelcoming staff which is clearly bread in from the Top down from the CEO

Everything was good. The red seats were a scam. Just like any other seat but red. Although they let you board earlier which was very nice.

Other than the bus wait time to off board passenger when we reached Don Muang, everything else was excellent

Very good, it would be good if payment for drinks could be accepted by card too.

The planes did not have charging jacks for phones or lap tops and there are no monitors for movies. On the flight from Delhi to Hyderabad I was the last person in First asked for a meal choice and only one meal was available so I had no choice.

Terrible airline... Originally, the flight was canceled and didn't receive a notification, had to learn from their twitter account... Rebooking was a huge pain... Every other airline like American and United did eventually fly a day later... The flight had a layover, no other airline needed one... India is such a weak nation globally, this airline has no leverage to negotiate good airspace... Flight left late, again no notifications as to why at the airport. On the plane, wifi is spotty, chargers don't work... The only saving grace used to be good food. Even that has gone down the drain. Just the worst!

Never ever travel with Air India is a very conscious promise made to myself. Poor customer service , irresponsible staff, pathetic operations and bad planes. Overall -0/10. Planes had mosquitoes in it.. i am still thinking what international standards of hygiene are they even following????. Operations team has no quality standards. They can route you anywhere on any plane inspite of a confirmed ticket and a web checkin… without your consent. Go for AirIndia if you love challenges and roller coasters and safety, time and hygiene is never your priority.

tray table was inclined by 30 degress so could not use it

The plane was very dated with the worst entertainment system i have seen in 30 years. Flight attendants were responsive.

The flight was on time, the entire experience was very smooth. The Flight crew were incredibly professional and nice. Made us feel very comfortable

Very bad experience luggage never made to destination no help form airlines staff aircraft was old crappy forts staff service bad airlines staff

Food, choice of menu and quantity were poor. Crew services were even poorer, not attending call bittons

I reached the check in counter 1 hour before take off and was denied boarding because the luggage could no longer be transferred to the flight. I was aback when throughout the world(including India) for a domestic flight, you need to report 1 hour before boarding. Then on top of that i was made to buy a brand new ticket. I had paid $350 for a business ticket between delhi and mumbai and then was made to buy another economy ticket for $100, No concessions/discounts were made for the airline's own inefficiency! The reservation counter was also extremely rude and unapologetic about making me pay a second time. For such a mediocre airline, there seems to be zero focus on providing good service to their customers and providing a pleasant experience.

very run down aircraft. seat tilted. the mobile / magazine holder was broken. The entertainment screen was not working. The crew was good, polite and helpful

Everything you need to know for your flight to Southeast Asia

Information on your arrival and departure airports