S$ 163 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 15-7. 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, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Kathmandu to Southeast Asia, as well as popular online travel agencies
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Flight Deals

Cheap Flights from Kathmandu to Southeast Asia

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for return 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 return flight deals from Kathmandu to Southeast Asia

Mon, 25 May - Thu, 28 May
Multiple Airlines Logo
15:00 - 11:10
KTM
-
SIN
17h 55m
1 stop
Multiple Airlines Logo
08:55 - 18:10
SIN
-
KTM
11h 30m
1 stop
S$ 449Multiple Airlines
Mon, 16 Mar - Tue, 31 Mar
Multiple Airlines Logo
15:00 - 11:20
KTM
-
SIN
18h 05m
1 stop
Multiple Airlines Logo
18:00 - 13:15
SIN
-
KTM
21h 30m
1 stop
S$ 468Multiple Airlines
Fri, 20 Mar - Tue, 24 Mar
Multiple Airlines Logo
15:10 - 07:05
KTM
-
SIN
13h 40m
2 stops
Multiple Airlines Logo
21:30 - 14:05
SIN
-
KTM
18h 50m
1 stop
S$ 469Multiple Airlines
Mon, 9 Mar - Wed, 25 Mar
Multiple Airlines Logo
15:00 - 12:20
KTM
-
SIN
19h 05m
2 stops
Multiple Airlines Logo
17:10 - 20:35
SIN
-
KTM
29h 40m
1 stop
S$ 477Multiple Airlines
Mon, 16 Mar - Tue, 31 Mar
Multiple Airlines Logo
15:00 - 07:05
KTM
-
SIN
13h 50m
2 stops
Multiple Airlines Logo
18:00 - 13:15
SIN
-
KTM
21h 30m
1 stop
S$ 481Multiple Airlines
Sat, 14 Mar - Mon, 16 Mar
Multiple Airlines Logo
21:05 - 06:40
KTM
-
SIN
31h 20m
2 stops
Multiple Airlines Logo
21:15 - 16:10
SIN
-
KTM
21h 10m
2 stops
S$ 487Multiple Airlines
Fri, 20 Mar - Tue, 24 Mar
Multiple Airlines Logo
15:10 - 11:20
KTM
-
SIN
17h 55m
1 stop
Multiple Airlines Logo
20:40 - 14:05
SIN
-
KTM
19h 40m
1 stop
S$ 488Multiple Airlines
Mon, 9 Mar - Wed, 25 Mar
Multiple Airlines Logo
15:00 - 20:10
KTM
-
SIN
26h 55m
1 stop
Multiple Airlines Logo
23:00 - 09:50
SIN
-
KTM
13h 05m
1 stop
S$ 495Multiple Airlines
Sun, 29 Mar - Wed, 1 Apr
Multiple Airlines Logo
14:15 - 11:10
KTM
-
SIN
18h 40m
1 stop
Multiple Airlines Logo
13:10 - 23:00
SIN
-
KTM
12h 05m
1 stop
S$ 504Multiple Airlines
Fri, 6 Mar - Sun, 22 Mar
Multiple Airlines Logo
07:35 - 14:10
KTM
-
SIN
28h 20m
2 stops
Multiple Airlines Logo
23:00 - 09:50
SIN
-
KTM
13h 05m
1 stop
S$ 506Multiple 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 72 hours was to Bangkok, at S$ 293 return. The most popular route is from Kathmandu (KTM) to Singapore (SIN), and the cheapest round-trip airline ticket found on this route in the last 72 hours was S$ 503.

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

The average return price for all direct flights, flights with one stopover, and flights with two stopovers for the route found by users searching on KAYAK in the last 2 weeks.

No, with an average price for the route of S$ 504, 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 July, when tickets cost S$ 607 (return) on average. On the other hand, the most expensive months are May and November, when the average cost of return tickets is S$ 897 and S$ 858 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.

If you are looking for a flight deal from Kathmandu to Southeast Asia, look for departures on Thursdays and avoid leaving on a Saturday, as it's usually the priciest day. When flying back from Southeast Asia, Tuesday is the cheapest day to fly and Saturday is the most expensive.

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 a flight from Kathmandu to Southeast Asia, you should book around 6 weeks before departure, which saves you about 15% compared to booking last-minute. For the absolute cheapest price, our data suggests you should book 26 weeks before departure.

Good to know

Low seasonNovember
Cheapest flightS$ 163
Best time to beat the crowds but there is an average 5% increase in price.
Most popular time to fly (4% more expensive on average)
Flight from Kathmandu to Singapore

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 travellers 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 return 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.

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

    The cheapest time of day to fly to Southeast Asia is generally at night, when retur flights cost S$ 736 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 S$ 736.

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: Singapore S$ 590 one-way - S$ 567 round-trip

Reviews of the top airlines flying 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 1463 reviews
8.6Crew
8.3Boarding
7.8Food
8.0Comfort
8.0Entertainment
Airline reviews

Service was very good, food and entertainment systems were good

10.0 ExcellentGary, Jan 2026
CAN - SIN
Read more Singapore Airlines reviews

Service was very good, food and entertainment systems were good

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

toilets could be cleaned more frequently, everything else was pretty good.

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.

The consistency with Singapore Airlines is fantastic. Crew are always brilliant and food delicious in business class

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

Airline should consider adding a small meal at the last leg of the flight, right now there is 7 hours of no meal break.

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.

Except that our flight was cancelled, by mail, and later moved to 12 hours prior, then the experience was good. In Bangkok we were offered a hotel, it was fine, but would have been nice to know in advance😉

The flight was mostly fine, but I really wished that seats had an outlet to charge devices considering the length of the flight (15 hours there and 14 hours back).

Everything you need to know for your flight to Southeast Asia

Information on your arrival and departure airports