S$ 273 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 15-3. 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

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

Best Southeast Asia Flight Deals from Kathmandu

Cheapest return prices found by our users on KAYAK in the last 72 hours
Singapore
Singapore1 stopS$ 470
Singapore
Singapore1 stopS$ 470

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

Wed, 3 Dec - Sun, 1 Mar
 Logo
14:15 - 10:30KTM-SIN
18h 00m1 stop
 Logo
21:00 - 12:00SIN-KTM
17h 15m1 stop
S$ 470
Find Deal
Wed, 3 Dec - Sun, 1 Mar
 Logo
15:00 - 13:55KTM-SIN
20h 40m2 stops
 Logo
21:00 - 12:00SIN-KTM
17h 15m1 stop
S$ 503
Find Deal
Sun, 28 Sep - Wed, 24 Dec
SriLankan Airlines Logo
13:15 - 18:55KTM-SIN
27h 25m1 stop
SriLankan Airlines Logo
09:40 - 11:50SIN-KTM
28h 25m1 stop
S$ 577SriLankan Airlines
Find Deal
Sun, 28 Sep - Wed, 24 Dec
SriLankan Airlines Logo
13:15 - 08:30KTM-SIN
17h 00m1 stop
SriLankan Airlines Logo
09:40 - 11:50SIN-KTM
28h 25m1 stop
S$ 578SriLankan Airlines
Find Deal
Fri, 17 Oct - Sat, 25 Oct
Air India Logo
10:05 - 21:45KTM-SIN
9h 25m1 stop
Air India Logo
23:00 - 06:35SIN-KTM
9h 50m1 stop
S$ 635Air India
Find Deal
Fri, 17 Oct - Sat, 25 Oct
Air India Logo
14:00 - 07:15KTM-SIN
15h 00m1 stop
Air India Logo
08:45 - 20:05SIN-KTM
13h 35m1 stop
S$ 646Air India
Find Deal
Fri, 17 Oct - Sat, 25 Oct
Thai Airways Logo
00:35 - 19:40KTM-SIN
16h 50m1 stop
Thai Airways Logo
15:55 - 23:35SIN-KTM
9h 55m1 stop
S$ 664Thai Airways
Find Deal
Thu, 16 Oct - Sat, 25 Oct
Thai Airways Logo
00:35 - 11:15KTM-SIN
8h 25m1 stop
Thai Airways Logo
20:50 - 12:25SIN-KTM
17h 50m1 stop
S$ 696Thai Airways
Find Deal
Sun, 28 Sep - Wed, 24 Dec
Singapore Airlines Logo
22:50 - 06:15KTM-SIN
5h 10mdirect
Singapore Airlines Logo
18:55 - 21:50SIN-KTM
5h 10mdirect
S$ 697Singapore Airlines
Find Deal
Sun, 28 Sep - Wed, 24 Dec
Singapore Airlines Logo
22:50 - 06:15KTM-SIN
5h 10mdirect
Singapore Airlines Logo
18:55 - 21:50SIN-KTM
5h 10mdirect
S$ 705Singapore Airlines
Find Deal
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 Singapore, at S$ 328 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$ 328.

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$ 621, 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$ 606 (return) on average. On the other hand, the most expensive months are December and May, when the average cost of return tickets is S$ 916 and S$ 898 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 Wednesday, as it's usually the priciest day. When flying back from Southeast Asia, Sunday is the cheapest day to fly and Monday 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 5 weeks before departure, which saves you about 14% compared to booking last-minute. For the absolute cheapest price, our data suggests you should book 26 weeks before departure.

Good to know

Low seasonApril
Cheapest flightS$ 273
Best time to beat the crowds but there is an average 6% increase in price.
Most popular time to fly and prices are also 4% lower 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 in the morning, when retur flights cost S$ 539 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$ 712.

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 S$ 431 one-way - S$ 721 round-trip; Singapore S$ 523 one-way - S$ 871 round-trip

Reviews of the top 4 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.
8.1
Singapore AirlinesOverall score based on 1365 reviews
8.6Crew
8.0Entertainment
7.7Food
8.2Boarding
8.0Comfort
Airline reviews

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

8.0 ExcellentAnonymous, Sept 2025SIN - BLR
Read more Singapore Airlines reviews

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.

The staff on the plane were attentive and friendly. The frustration with the cabin crew was that we were served second to special diet people. And, we were in economy section. The boarding staff was mediocre. Got scolded for requesting to sit with spouse on 14 hours long flight home. Was told they cannot break up families for us. Didn’t understand how we were denied sitting together as we are husband and wife. After many words of exchange, we were accommodated. Cleaning crew did a horrible job! Bathrooms were unsanitary or dirty from beginning of flight! Didn’t expect sparkling as its economy, but did except decent.

Food from Surabaya was below average but from Singapore is much better

The usual excellent experience with Singapore Airlines. The airplane was on time and actually early to Haneda Airport. The onboarding experience was pleasant with no delays, perhaps owing to the fact that the flight was not full. Nevertheless, the air crew were their usual outstanding standards in serving the passengers.

Good service and food. For buying items on flight should be preordered as they don’t keep much stock on board.

Both the staff at check-in counter and on board were pleasant and helpful. My chicken and mashed potato was good, sauce was tasty, but the zucchini, carrot n other accompanying vegetables were over-cooked a little. (I understand the meal has to be prepared earlier). Yet I would fly on Singapore Airlines again and recommend it to family and friends.

Horrendous. We upgraded and they took the money but cancelled one of our tickets. The recline action didn’t work on the seats for the flight from Singapore to London, pre booked meals but they seemed to have disappeared as well.. Phone customer service was horrendous. Took 5 phone calls and no fix. Craig at the airport was the only one who seemed to be able to get the ticket back.

Construction at PDX resulting in very lung walk from the rental car to the gate. SFO, extremely long walk between terminals to get to connecting Singapore airlines flight. My smart watch recorded a total of 3 miles.

Crew and service was excellent, but passengers should be offered a welcome drink before take off which did not happen. Food was very good. Unfortunately the lie-flat bed in business class was one of the most uncomfortable I have experienced. The configuration forces you to sleep with your legs at an angle instead of in a straight line, plus there is very little padding on the bed so it wasn't possible to sleep for more than 2-3 hours on an 18 hour flight. For what the airlines charges for a business class ticket their hard product leaves a lot to be desired.

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).

Although booked meal of fruit only The crew had not received this special meal The same happened on my flight Bangkok / CAN The films are so old that best is to use own computer to watch downloads . Serve nuts but they do not warm up . Service is attentive , WC clean

Terrible. It’s like they are stuck in the dark ages. I brought a standard carry on suitcase and a back pack - I was told I could only carry on 7kg per bag - in business class, I was forced to remove articles from the suitcase and put them into my backpack! That’s the most ridiculous thing I’ve ever encountered in all my years of flying. The two bags weighed the same amount but one could not be more than 7kg. Holy cow.

They used Thai Smile plane, which is a smaller model and used to service only domestic flights; hence, the plane is small and quite compact. No entertainment on the flight. While boarding was delayed, it was done in a quick manner.

I give EVA 5 stars in every category. I enjoy this airline and it's great team of employees. I always highly recommend EVA to friends and family and everyone.

The flight was delayed going out of the gate at BKK that made it a difficult challenge to get through immigration transfer at tapei and make it to my departure on time. This appears to be a recurring issue. The flight crew and cabin crew were excellent. The food was very nice.

The boarding efficiency was good. A couple of the flight attendants did not seem in the best of moods. Overall it was a good experience.

The setting configuration of the aircraft stinks. Nobody should pay business class fares and be so uncomfortable. The design of facing fellow passengers is a brilliant nincompoop.

Entertainment is limited with a relatively old catalogue. Wi-Fi never works and the cabin and lavatory had evidence of a lot of scuff marks and temporary repairs. Nothing unsafe, but a bit tatty in places.

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.

Jia yung was the flight attendant that made this a miserable flight.

The flight isn’t great, as the plane has faulty with light and noise. It blinks and make noise for 8hrs non stop! Causing health and sensory issues! Causing Hazard matter to all 3 babies that on bassinet seats. This matters affected 12 passengers and the most horrible flight I ever experience. Have been flying with MAS for more 30yrs and this is the worst! Very disappointed

AC not working, just slowly blowing room temperature air. Long taxi time does not help as well. Sweating all over the whole trip.

Did not take as cancelled 3 time so took another airline

It was a 2-hour flight so they didn't have much time for serving food. There was some turbulence so they could not serve hot coffee or tea for the safety reason. Good service, good tasting food, nice plane, a little bit of delay.

The IFE is quite unconvenient if using our own device. Not all passenger brought their own earphone/headphone.

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

Never can get flight and nof light for three days .finally travel by bus. Very bad experience.

Flight crew was lovely. Bathrooms should have been cleaner. The handsets in business class for watching the entertainment are horrible. Very difficult to figure out which buttons are for what. I managed to get the flight maps on my screen but it wasn't easy. Never got anything else up.

Extremely bad experience compared to Vistara. No priority in check in, no priority for boarding. No upgrade. Seat selection is paid. Curtains were dirty. Demo bag was dirty. Warmth of the crew was missing.

The trip with Air India was better than expected starting with the check-in and the Lounge. The flight was comfortable for a 1 hour flight.

Terrible. Air India canceled my flight out of Kathmandu because of airport constructions but did not tell me. They should not be selling night flights out of Kathmandu right now that they know they will not honor. The staff was terrible and not helpful with my rebooking or compensating me.

Flight leg to and from IAD/Delhi was good. The leg to and from Delhi/KTM was terrible.

Ok, where do I start, hmm! Good things first - the meals/food was tasty, the seats are comfortable and legroom in Economy was ample and foot rest with message roller is simply amazing, Wi-Fi Entertainment works well. Bad things - in-flight entertainment screens and remotes either had physical damage and or simply not working. This was the case for more than 1/2 the flight. Flight that was long haul - 12+hrs non-stop. If you want a cracker or a biscuit with your tea - forget it, they carry none. Feel like having a chilled beer - forget it as they will serve you room temperature always and every time. The crew seem young and inexperienced. Will I fly again, yes I would only because it gets me from Sydney to Delhi in 12.5 odd hours (fastest), otherwise I will never. It has been what a year or so since TATA took over but I have not seen any change, I really hope this changes.

Food not of any international or even Indian standard. We have many cuisine available but only paneer & sundry items. Improve & provide some good indian items. Entertainment website or channel out of order.

only 3 meals in a 17 hr long flight. first meal after take off then nothing for 8hrs for people boarding at 2pm at orgin. you expect people to go without any food for 8 waking hours? there should have been 4 meals during a 17hr long flight. food quantity was also less. when asked for food the flight attended said they are about to begin food service then didnt do it for 2hours after saying that. terrible experience

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