S$ 243 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 15-8. 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.
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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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Best Southeast Asia Flight Deals from Kathmandu

Cheapest return prices found by our users on KAYAK in the last 72 hours

Singapore
Singapore1 stopS$ 527

Cheap Flight Deals from Kathmandu to Southeast Asia (KTM-zzYJX)

 
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.

Recent return flight deals from Kathmandu to Southeast Asia

Recommended return flight deals departing in the coming months from the most popular airlines that fly from Kathmandu to Southeast Asia.
Discover the best prices for you by selecting your travel dates on KAYAK.
Choose your dates
 Logo
14:50 - 09:35KTM-SIN
16h 30m1 stop
 Logo
09:00 - 18:10SIN-KTM
11h 25m1 stop
S$ 527
Find Deal
Tue, 17 Jun - Sat, 21 Jun
 Logo
15:00 - 09:35KTM-SIN
16h 20m1 stop
 Logo
09:00 - 18:10SIN-KTM
11h 25m1 stop
S$ 562
Find Deal
Wed, 18 Jun - Sat, 21 Jun
 Logo
15:00 - 14:15KTM-SIN
21h 00m1 stop
 Logo
21:15 - 06:35SIN-KTM
35h 35m2 stops
S$ 572
Find Deal
Wed, 18 Jun - Sun, 22 Jun
 Logo
15:00 - 14:15KTM-SIN
21h 00m1 stop
 Logo
15:30 - 14:00SIN-KTM
24h 45m1 stop
S$ 574
Find Deal
Wed, 18 Jun - Sun, 22 Jun
Thai AirAsia Logo
15:00 - 09:35KTM-SIN
16h 20m1 stop
Thai AirAsia Logo
14:40 - 14:00SIN-KTM
25h 35m1 stop
S$ 582Thai AirAsia
Find Deal
Sun, 11 May - Sat, 17 May
 Logo
14:50 - 08:30KTM-SIN
15h 25m2 stops
 Logo
19:15 - 14:00SIN-KTM
21h 00m1 stop
S$ 594
Find Deal
Tue, 17 Jun - Sat, 21 Jun
Singapore Airlines Logo
23:00 - 06:20KTM-SIN
5h 05mdirect
Singapore Airlines Logo
18:55 - 21:45SIN-KTM
5h 05mdirect
S$ 600Singapore Airlines
Find Deal
Thu, 3 Jul - Sun, 3 Aug
IndiGo Logo
16:40 - 17:20KTM-SIN
22h 25m3 stops
IndiGo Logo
19:45 - 09:50SIN-KTM
16h 20m1 stop
S$ 664IndiGo
Find Deal
Sat, 12 Apr - Fri, 18 Apr
Thai Airways Logo
00:25 - 14:30KTM-SIN
11h 50m1 stop
Thai Airways Logo
15:55 - 23:25SIN-KTM
9h 45m1 stop
S$ 798Thai Airways
Find Deal
Wed, 2 Jul - Sun, 3 Aug
Singapore Airlines Logo
23:00 - 06:20KTM-SIN
5h 05mdirect
Singapore Airlines Logo
18:55 - 21:45SIN-KTM
5h 05mdirect
S$ 799Singapore Airlines
Find Deal
Wed, 7 May - Sun, 25 May

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?

The cheapest price for flight routes found by users searching on KAYAK in the last 2 weeks for round-trip flights from Kathmandu to Southeast Asia.
The cheapest ticket to Southeast Asia from Kathmandu found in the last 72 hours was to Bangkok, at S$ 720 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$ 745.

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 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$ 609.

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.
Yes, flying with a stopover may cost you more time, but you can also save money on the route, with a 1 stop stopover the cheapest option at S$ 574 on average.

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$ 622 (return) on average. On the other hand, the most expensive months are April and December, when the average cost of return tickets is S$ 879 and S$ 874 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 Sundays 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 Wednesday 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 the flight from Kathmandu to Southeast Asia, you should book around 5 weeks before departure. For the absolute cheapest price, our data suggests you should book 8 weeks before departure.

Good to know

Low season

February

High season

October

Cheapest flight

S$ 243
Best time to beat the crowds (2% less expensive on average)
Most popular time to fly and prices are also 2% 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.

See more FAQs

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.
8.1
Singapore AirlinesOverall score based on 1288 reviews
8.2Boarding
7.9Comfort
7.7Food
8.0Entertainment
8.6Crew
Airline reviews

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.

10.0 ExcellentPierre, Mar 2025PDX - SFO
Read more Singapore Airlines reviews

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.

Food could have been better. Too many passengers getting up and down all the time.

It was very good experience on board to Sydney with SQ.

Everything was great keep up the good work 😁, can't ask for more.

The staff on Singapore Airlines was incredible. I would like to commend LS Reuben from my SQ37 flight on November 19th, 2024, from LAX to Singapore, for his outstanding service and care. During the flight, one of my earbuds—brand new and valued at nearly $300—fell out and became lodged in the box controlling the in-flight entertainment system. I was understandably upset, but Reuben went above and beyond to assist me in this tough situation. Reuben demonstrated exceptional determination and empathy. Instead of suggesting we wait for an engineer, he immediately took action, spending almost 30 minutes searching for the earbud. He even got down on the floor to ensure it was recovered. His genuine concern and persistence made all the difference and turned a frustrating situation into one where I felt truly valued as a passenger. Reuben is a shining example of the remarkable service that sets Singapore Airlines apart. His dedication and willingness to go the extra mile left a lasting impression, and I want to sincerely thank him for his kindness and professionalism.

Great airline. Excellent service, good food & lots of TV movies/shows to choose from.

Flight was delayed by baggage loading onto the plane. This was attributed to "inclement weather" (some moderate rain) which could be said to be beyond the airline's control, but the problematic part was that the plane was boarded and doors shut so that passengers sat in a cramped plane with rising temperature (full flight) for an hour. The airline was aware of the status of baggage loading, they could have deferred boarding to keep passengers comfortable.

The seats were more narrow than at other lines. Food was mediocre (economy class)

The crew and their service was top notch, but the plane itself seemed to be on the older side and worn out. Also, the food could’ve been better. 9 out of 10.

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.

Delayed flight in Singapore caused the transfer at Bangkok to be very stressful. Fortunately, no elderly were in this trip, else it will not be possible to catch the connecting flight. There were also several occasions throughout the flight journey where some of the passengers were not wearing their seat belts despite several remainders from the stewardess.

USB charging port was not working at my seat 48K.

I enjoy flying with Thai Airways, however their B788 business class configuration is quite dated. Additionally , while the service is always friendly and efficient, I’m getting tired of the same “usual suspects” when it comes to food choices. Since it was a lunchtime flight, what about some gourmet sandwiches or some type of salad dish for the main course? The entertainment options are also quite limited and this is not unique to TG, so much so that given the short duration of the flight I ended up not bothering with any entertainment. Finally, despite signs around the cabin advising wifi available, I was unable to con-net and in fact I’ve never been able to connect on any TG flight over the last year or so - what’s the go here??

Always liked Thai Airways but in the past they have been very expensive, not being a millionaire just yet, I will use cheaper airlines. Bangkok to London £370 11 hours 45 mins. Old plane but ok. Lovely ladies on board, very polite. Food was ok. Will always use them if the price is right.

Could have been better. I prefer Thai airlines only but it hasnt been reliable.

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.

Ok, but legspace on MH0127 from Kul to Per was too small. It was not possible to tilt my seat which I don't understand because the seat in front of my could do it. So I didn't rest on the flight. Also, the crew was probably understaffed because it took very long time to take trash after the meal. Everything very different from the flight with Malaysian Airlines from London to KL.

Service / food has to be much better. Staff were not very attentive to requests. Requested for a second serve of coke and got a weird look back from the host! Was also told they don’t have extra water bottles when I requested for one before sleep! Dinner time food was very minimum and average.

An overnight Doha to KL. Great sleep, good service and tasty food in business class

chaos boarding. Crew in business class seemed short staffed and lacking in attention to details initially, but did improve during flight.

Need to improve the availability of the food. Seems like everything sold out

Did not like that we were not informed about the 4 hour delay, crew not friendly, noone at terminals to consult with...all employees for Batrik were behind glass aftervgoing through security at the gate again. Why no agent at Gate H 10 to answer questions? And no apology. Updates would have eased anxiety. Boarding is disorderly also.

During this flight all the crew just focused on making money by selling food and drinks. There was only one washroom open. And it really smelled bad and wasn’t usable. Even to watch something onboard entertainment u have to rent headphones pathetic airline but only one with direct flight so pretty much the only option from Karachi to KL

Delayed for 3 hours, need to pay extra for drinking water.

The OD2204 KUL-LGK was delayed 40 minutes due to air-condition malfuntion, after inspection the technician give green light for the flight to go as usual but the air-condition is still not working properly, passengers complaining to the stewardess but they cannot do anything, I did tweet to @malindoair to complaint but no reply from them … hope this Batik Air is not having problem like Rayani Air and I do hope the management do respond to my complaint as well

Nasi lemak was horrible. Plain white rice, tasteless sambal, no cucumber, no kacang, no ikan bilis. And the chicken was colourless and tasteless, tasted like boiled chicken. Entertainment system didn't work at all.

2 delayed flights - hotel layover in a different country- lost baggage.

Silly to not even offer people water for free when they are paying so much for tickets.

You get what you pay for. It’s functional and gets you from point A to B in good comfort. However, food options are limited and cash only, Crew is a hit and miss .. they get your attention if you reach out.

Good leg room ... air conditioning was a bit warm don't Book row 8 ... no windows

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.

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.

The flight got delayed and was not updated in time.

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

I had a camera bag that exceeded the 10kg allowance for hand luggage. I am 67 years old and have been travelling will my cameras and lenses all over the world and have not paid once for the excess weight. Also, even if I wanted to check in the bag, I can’t due to lithium batteries and delicate equipment. Air India should review their policies. Or is it just a cash grab. I had to pay additional 7000 rupees.

The aircraft interiors are falling apart. Felt like a waste paying for business class as it was indistinguishable from economy in any way.

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.

Everything you need to know for your flight to Southeast Asia

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