$181 Cheap Flights from Singapore (SIN) to Kathmandu (KTM)

Popular airlines from Singapore Changi Airport (SIN) to Tribhuvan Intl. Airport (KTM)

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Find available prices by choosing your travel dates.

Cheap Flights from Singapore to Kathmandu (SIN-KTM)

Prices were available within the past 7 days and start at $181 for one-way flights and $402 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Cathay Pacific
China Southern Airlines
Cathay Pacific
Cathay Pacific
China Southern Airlines
China Southern Airlines
China Southern Airlines
Batik air
Air India
SriLankan Airlines
Flights from Singapore (SIN) to Kathmandu (KTM)
Origin airport
Changi
Destination airport
Tribhuvan Intl.
Airlines serving
Air China, Air India, Cathay Pacific, China Southern Airlines, IndiGo, Malaysia Airlines, Sichuan Airlines, Singapore Airlines, SriLankan Airlines, Thai Airways International
Roundtrip price
$401
Distance
2198 mi

Singapore to Kathmandu Flights

The cheapest times to fly from Singapore to Kathmandu

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from Singapore to Kathmandu are during the month of June. You can find some of the cheapest flights from Singapore to Kathmandu with Expedia's search tool and vast selection of airlines.

The best time to book a flight from Singapore to Kathmandu

Sunday is one of the best days to book for cheap flights from Singapore to Kathmandu: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

How to find cheap round-trip tickets from Singapore to Kathmandu

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from Singapore to Kathmandu in 2025. You can also book with separate airlines for your outbound and return journeys, from $181 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap Singapore to Kathmandu flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

You could also save big by booking one of Expedia's vacation packages. Bundling together your Singapore to Kathmandu airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

*Terms apply.

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

Frequently asked questions

How long does it take to fly from Singapore Airport to Tribhuvan Intl. Airport (KTM)?
With Singapore Airlines, a direct flight takes about 5 hours and 5 minutes. Secure a seat on the 6:55PM flight from SIN and come in to land at Tribhuvan Intl. Airport at 9:45PM. Grab a great deal on this and other routes when you use Expedia to arrange your trip.
Is it cheaper to buy a plane ticket from Changi Airport to Tribhuvan Intl. Airport (KTM) last minute?
Being a spontaneous soul is a fabulous way to see the world, but it isn’t necessarily the best method to nab a cheap airfare. Consider booking your SIN to Tribhuvan Intl. Airport journey ahead of time instead of leaving it till the last minute. Based on flight pricing and demand studies in 2022, we have found that the best time to book domestic flights is between 28 – 35 days ahead of the departure date, and international flights three to four months in advance. Leave your spontaneity for when you arrive at your destination!
What airports do you fly into for Kathmandu from Singapore?
Tribhuvan Intl. Airport (KTM), Simara Airport (SIF) and Ramechhap (RHP) are your options when taking off from Singapore to Kathmandu. About 2 mi southeast of the heart of Kathmandu, Tribhuvan Intl. Airport (KTM) is the city’s principal gateway. Take into account factors like flight arrival and departure times and the distance to your hotel before you select an airport. Boudhanath and Kathmandu Durbar Square are two top attractions to add to your must-see list when you get to your destination.
What are the most popular departure times for flights from Singapore Airport to Tribhuvan Intl. Airport (KTM)?
For Singapore Airlines flights setting off from Changi Airport (SIN) to KTM, the most popular departure times are between 6:00 PM - 7:00 PM. If you want to avoid any delays, book a morning flight. This way you can dodge air traffic that builds up in the skyways in the afternoon.
Can I change the date of my flight from SIN to Tribhuvan Intl. Airport?
Expedia makes it a breeze to make amendments to your SIN to KTM journey yourself. Access your details via the Expedia Trips portal and click on “change flight.” Search for new flights and choose the one that works with your new plans. You’ll see an estimate of applicable flight change fees. You can also visit our Customer Service portal to chat to our Virtual Agent and get answers to all your questions.

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*Available to One Key members.