Cheap flights from Seoul to Kathmandu

Compare Seoul to Kathmandu flight deals

Find the cheapest month or even day of the year to fly to Kathmandu

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Flight deals from Seoul to Kathmandu Airport

Looking for a cheap last-minute deal or the best return flight from Seoul to Kathmandu Airport? If you want to travel next month, return fares start from $380. Find the lowest prices on one-way and return tickets right here.

Kathmandu.$182 per passenger.Departing Tue, 30 Jun.One-way flight with Sichuan Airlines.Outbound indirect flight with Sichuan Airlines, departs from Incheon International on Tue, 30 Jun, arriving in Kathmandu.Price includes taxes and charges.From $182, select.

Kathmandu.$189 per passenger.Departing Sat, 30 May.One-way flight with Sichuan Airlines.Outbound indirect flight with Sichuan Airlines, departs from Incheon International on Sat, 30 May, arriving in Kathmandu.Price includes taxes and charges.From $189, select.

Kathmandu.$225 per passenger.Departing Wed, 2 Sep.One-way flight with SriLankan Airlines.Outbound indirect flight with SriLankan Airlines, departs from Incheon International on Wed, 2 Sep, arriving in Kathmandu.Price includes taxes and charges.From $225, select.

Kathmandu.$226 per passenger.Departing Wed, 28 Oct.One-way flight with SriLankan Airlines.Outbound indirect flight with SriLankan Airlines, departs from Incheon International on Wed, 28 Oct, arriving in Kathmandu.Price includes taxes and charges.From $226, select.

Kathmandu.$226 per passenger.Departing Sat, 2 Jan.One-way flight with SriLankan Airlines.Outbound indirect flight with SriLankan Airlines, departs from Incheon International on Sat, 2 Jan, arriving in Kathmandu.Price includes taxes and charges.From $226, select.

Kathmandu.$226 per passenger.Departing Wed, 8 Jul.One-way flight with SriLankan Airlines.Outbound indirect flight with SriLankan Airlines, departs from Incheon International on Wed, 8 Jul, arriving in Kathmandu.Price includes taxes and charges.From $226, select.

Kathmandu.$228 per passenger.Departing Sat, 26 Dec.One-way flight with SriLankan Airlines.Outbound indirect flight with SriLankan Airlines, departs from Incheon International on Sat, 26 Dec, arriving in Kathmandu.Price includes taxes and charges.From $228, select.

Kathmandu.$228 per passenger.Departing Wed, 12 Aug.One-way flight with SriLankan Airlines.Outbound indirect flight with SriLankan Airlines, departs from Incheon International on Wed, 12 Aug, arriving in Kathmandu.Price includes taxes and charges.From $228, select.

Kathmandu.$228 per passenger.Departing Sat, 20 Feb.One-way flight with SriLankan Airlines.Outbound indirect flight with SriLankan Airlines, departs from Incheon International on Sat, 20 Feb, arriving in Kathmandu.Price includes taxes and charges.From $228, select.

Kathmandu.$228 per passenger.Departing Wed, 18 Nov.One-way flight with SriLankan Airlines.Outbound indirect flight with SriLankan Airlines, departs from Incheon International on Wed, 18 Nov, arriving in Kathmandu.Price includes taxes and charges.From $228, select.

Kathmandu.$245 per passenger.Departing Mon, 27 Apr.One-way flight with Air China.Outbound indirect flight with Air China, departs from Incheon International on Mon, 27 Apr, arriving in Kathmandu.Price includes taxes and charges.From $245, select.

Kathmandu.$543 per passenger.Departing Sat, 1 Aug.One-way flight with Korean Air.Outbound direct flight with Korean Air departs from Incheon International on Sat, 1 Aug, arriving in Kathmandu.Price includes taxes and charges.From $543, select.

Kathmandu.$543 per passenger.Departing Sat, 25 Jul.One-way flight with Korean Air.Outbound direct flight with Korean Air departs from Incheon International on Sat, 25 Jul, arriving in Kathmandu.Price includes taxes and charges.From $543, select.

Kathmandu.$563 per passenger.Departing Tue, 30 Jun.One-way flight with Korean Air.Outbound direct flight with Korean Air departs from Incheon International on Tue, 30 Jun, arriving in Kathmandu.Price includes taxes and charges.From $563, select.

Kathmandu.$564 per passenger.Departing Sat, 30 May.One-way flight with Korean Air.Outbound direct flight with Korean Air departs from Incheon International on Sat, 30 May, arriving in Kathmandu.Price includes taxes and charges.From $564, select.

Kathmandu.$580 per passenger.Departing Sat, 30 Jan.One-way flight with Korean Air.Outbound direct flight with Korean Air departs from Incheon International on Sat, 30 Jan, arriving in Kathmandu.Price includes taxes and charges.From $580, select.

Find the cheapest month to fly from Seoul to Kathmandu

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like Seoul to Kathmandu flights are currently cheapest in June.

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Direct flights from Seoul to Kathmandu

Seoul to Kathmandu: Alternative routes

Compare routes from Seoul to Kathmandu below. You may find an airport to fly into that's cheaper, faster, or easier than Kathmandu.

Kathmandu

5km from central Kathmandu

ClosestCheapest

from $182

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Seoul to Kathmandu: Flight information

The things to know before you go.

Cheapest flight found	$182
Cheapest month to fly	June
Average flight time	7 hrs, 5 mins
Most popular airline	Korean Air
Average flights per week	6

Finding cheap flights from Seoul to Kathmandu: Frequently asked questions

How much are return flights from Seoul to Kathmandu?

The best price we found for a return flight from Seoul to Kathmandu is $370. This is an estimate based on information collected from different airlines and travel providers over the last 4 days and is subject to change and availability.

How long does it take to fly from Seoul to Kathmandu?

7 hours and 5 minutes is the average flight time from Seoul to Kathmandu.

Which airlines fly direct from Seoul to Kathmandu?

Korean Air flies direct from Seoul to Kathmandu.

How many flights are there a week from Seoul to Kathmandu?

As of April 2026, there are 2 flights per week flying from Seoul to Kathmandu.

When is the cheapest time to fly from Seoul to Kathmandu?

The cheapest month to fly from Seoul to Kathmandu is usually June.

Which upcoming date is cheapest to fly from Seoul to Kathmandu Airport on?

After crunching the numbers on our flight calendar, we found that it is currently cheapest to fly from Seoul to Kathmandu Airport on Thursday, 11 June 2026.

Can I get a direct flight from Seoul to Kathmandu Airport?

Yes – the average flight time is 7 hours and 5 minutes.

How can I find the best flight deal to Kathmandu?

We show every price from over 1,200 airlines and travel agents, comparing them all so you don’t have to. If you know you want to fly to Kathmandu but you’re not ready to book, set up a Price Alert. We’ll track prices for you, and let you know when they rise or fall.

When is the best time to book flights to Kathmandu?

We crunched all the numbers in our flight calendar and it looks like the cheapest time to book a flight to Kathmandu is around 40 days in advance, so don’t leave your flight to the last minute.

Flying from Seoul to Kathmandu Tribhuvan International Airport (KTM): What you need to know

Planning your getaway begins with figuring out where you'll fly out of in Seoul. Seoul Incheon International Airport (ICN) is the city's main base, so check out your options for booking a flight from Seoul to Kathmandu Tribhuvan International Airport (KTM) jetting off from here.
Expect to be in the air for 7 hours 10 minutes. On average, that's the time it takes for a direct Seoul to Kathmandu Tribhuvan International Airport flight.
Kathmandu Tribhuvan International Airport is located in Kathmandu. The city follows the UTC+5:47 timezone and is three hours 12 minutes behind Seoul.
Seoul Incheon International Airport (ICN) to Kathmandu Tribhuvan International Airport (KTM) is the busiest route, with 2 direct services every week. You can travel from ICN to KTM on Korean Air's 12:45pm flight.
Arriving two hours before an international flight and one hour ahead of a domestic departure are golden rules for stress-free travel. Get to the airport on time to board your flight from Seoul to KTM.
Popular months like January or other busy periods mean longer waiting times and potential delays. Stay ahead of the crowds by getting to the airport even earlier. Aim for at least four hours ahead of international flights and two hours before a domestic departure.

Airports in Seoul

Seoul Incheon International Airport (ICN)

Seoul Incheon International Airport (ICN) will have you travelling directly to your destination. Nonstop flights from Seoul to Kathmandu Tribhuvan International Airport (KTM) leave from this terminal.
You'll find a direct flight from Seoul to Kathmandu Tribhuvan International Airport with Korean Air. This top carrier operates departures from ICN.
The majority of passengers choose to fly with Korean Air from ICN to KTM.
Korean Air is the most punctual carrier on this route, with 73.33% of its services landing on time.
Think about adding a stopover to find cheap flights from Seoul to KTM. Just deselect 'Direct flights only' when browsing departures from Seoul Incheon International Airport (ICN). Slip in a stop (and skip the high fares) by flying through one of these airports:
- Guangzhou Baiyun International Airport (CAN)
- Bangkok Suvarnabhumi International Airport (BKK)
- Hong Kong International Airport (HKG)
The journey from central Seoul to ICN takes around 50 minutes by public transport. If you ride-share, drive or get a taxi, you'll cover the 48 kilometres in 1 hour 5 minutes or so, depending on traffic.
Want an easy start to your journey? Stay near Seoul Incheon International Airport. Whether you're boarding an early flight from Seoul to Kathmandu Tribhuvan International Airport or prefer not to rush, these hotels are the answer:
Of the departures from Seoul Incheon International Airport, 74% arrive on time at their destination.

Seoul Gimpo International Airport (GMP)

You can arrive at GMP from the centre of Seoul in approximately 30 minutes by car, depending on traffic. The journey by public transport will take roughly 35 minutes to travel the 16 kilometres or so.
Start your holiday sooner with an extra night away from home. Before catching your Seoul to KTM flight, stay in one of these hotels close to Seoul Gimpo International Airport:
Flights from Seoul Gimpo International Airport have a strong track record for punctuality, with 80% of them touching down within the expected time frame.

About Kathmandu Tribhuvan International Airport (KTM)

Consider booking a hotel close to KTM if you're catching a late flight from Seoul to Kathmandu Tribhuvan International Airport. Check in to one of these options and get some sleep sooner:
To lock in the lowest price, book your ride around one week ahead of your Seoul to Kathmandu Tribhuvan International Airport flight.

Getting from Kathmandu Tribhuvan International Airport (KTM) to central Kathmandu

Central Kathmandu is around 6 kilometres from Kathmandu Tribhuvan International Airport and takes about 30 minutes to reach by car. Explore your options for getting into the city, whether that's with a car hire, taxi or ride-share.
If you're taking public transport, expect a journey of roughly 40 minutes.

How to find the cheapest flights from Seoul to Kathmandu Tribhuvan International Airport (KTM)

Right now, $182 is the lowest price we've found for a one-way ticket from Seoul to Kathmandu Tribhuvan International Airport. The cheapest price for a return flight is $370. Keep in mind fares may change due to availability at the time of booking.
Book 11 months before travelling. Pricing trends show that this is the ideal window for finding cheap flights from Seoul to KTM.
The best month for scoring cheap Seoul to Kathmandu Tribhuvan International Airport tickets is April. Use the 'Whole month' tool to compare flight prices, then choose the dates that offer the lowest fares.
Save time searching for cheap plane tickets from Seoul to KTM by setting up a Price Alert. We'll send you an email or push notification on the app when a lower fare becomes available.
Find a cheap flight from Seoul to Kathmandu Tribhuvan International Airport by using filters. Choose your ideal times, number of stops and airlines, then sort the results by 'Cheapest' for the best deals.

The best time to fly from Seoul to Kathmandu Tribhuvan International Airport (KTM)

Think about the kind of holiday you want when deciding your trip dates. December is the quietest month to go to Kathmandu. February is when most people book flights from Seoul to Kathmandu Tribhuvan International Airport (KTM), which may be perfect if you enjoy travelling when it's busier.
Before locking in your Seoul to KTM plane ticket, consider the kind of weather you prefer. June is the warmest month in Kathmandu, with temperatures ranging from 17ºC (63ºF) to 30ºC (86ºF).
If you want cooler conditions, search for a cheap ticket from Seoul to Kathmandu Tribhuvan International Airport in January when temperatures are between 3ºC (37ºF) and 19ºC (66ºF).

More about Kathmandu

When it comes to looking for somewhere to lay your head, you'll find the most popular stays in Kathmandu right here. Explore these options as soon as you've booked your flight from Seoul to Kathmandu Tribhuvan International Airport:
There are so many things to explore in this city, it can be hard to know where to start. Kathmandu Durbar Square, Boudhanath Stupa and Swayambhunath Stupa are major attractions which should feature on any well-planned Kathmandu itinerary.

Explore more of Nepal

Pokhara is just one of the many cities in Nepal waiting to be discovered once you've seen Kathmandu. Around 145 kilometres away to the northwest, popular attractions include Phewa Lake, Parahawking and Sarangkot View Point.
Around 241 kilometres southeast of Kathmandu, Biratnagar is another favourite stop in Nepal. Experience this destination's highlights firsthand at Haleshi Mahadev Mandir, Birateshwor Shiva Temple and ISKCON Jaljala.