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Cheap Flights from Seoul (ICN) to Kathmandu (KTM)

Compare Incheon International to Kathmandu flight deals

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

Book the best Kathmandu fare with no extra fees

Flight deals from Incheon International to Kathmandu

Looking for a cheap last-minute deal or the best return flight from Incheon International to Kathmandu? Find the lowest prices on one-way and return tickets right here.
Kathmandu.$479 per passenger.Departing Sat, 5 Jul, returning Tue, 15 Jul.Return flight with China Eastern.Outbound indirect flight with China Eastern, departs from Incheon International on Sat, 5 Jul, arriving in Kathmandu.Inbound indirect flight with China Eastern, departs from Kathmandu on Tue, 15 Jul, arriving in Incheon International.Price includes taxes and charges.From $479, select.
Kathmandu.$487 per passenger.Departing Thu, 26 Jun, returning Fri, 4 Jul.Return flight with Sichuan Airlines.Outbound indirect flight with Sichuan Airlines, departs from Incheon International on Thu, 26 Jun, arriving in Kathmandu.Inbound indirect flight with Sichuan Airlines, departs from Kathmandu on Fri, 4 Jul, arriving in Incheon International.Price includes taxes and charges.From $487, select.
Kathmandu.$491 per passenger.Departing Thu, 7 Aug, returning Mon, 11 Aug.Return flight with Sichuan Airlines.Outbound indirect flight with Sichuan Airlines, departs from Incheon International on Thu, 7 Aug, arriving in Kathmandu.Inbound indirect flight with Sichuan Airlines, departs from Kathmandu on Mon, 11 Aug, arriving in Incheon International.Price includes taxes and charges.From $491, select.
Kathmandu.$491 per passenger.Departing Thu, 24 Jul, returning Fri, 1 Aug.Return flight with Sichuan Airlines.Outbound indirect flight with Sichuan Airlines, departs from Incheon International on Thu, 24 Jul, arriving in Kathmandu.Inbound indirect flight with Sichuan Airlines, departs from Kathmandu on Fri, 1 Aug, arriving in Incheon International.Price includes taxes and charges.From $491, select.
Kathmandu.$515 per passenger.Departing Sat, 16 May, returning Sun, 24 May.Return flight with SriLankan Airlines.Outbound indirect flight with SriLankan Airlines, departs from Incheon International on Sat, 16 May, arriving in Kathmandu.Inbound indirect flight with SriLankan Airlines, departs from Kathmandu on Sun, 24 May, arriving in Incheon International.Price includes taxes and charges.From $515, select.
Kathmandu.$518 per passenger.Departing Wed, 5 Nov, returning Sun, 16 Nov.Return flight with SriLankan Airlines.Outbound indirect flight with SriLankan Airlines, departs from Incheon International on Wed, 5 Nov, arriving in Kathmandu.Inbound indirect flight with SriLankan Airlines, departs from Kathmandu on Sun, 16 Nov, arriving in Incheon International.Price includes taxes and charges.From $518, select.
Kathmandu.$520 per passenger.Departing Sat, 11 Oct, returning Sun, 19 Oct.Return flight with SriLankan Airlines.Outbound indirect flight with SriLankan Airlines, departs from Incheon International on Sat, 11 Oct, arriving in Kathmandu.Inbound indirect flight with SriLankan Airlines, departs from Kathmandu on Sun, 19 Oct, arriving in Incheon International.Price includes taxes and charges.From $520, select.
Kathmandu.$520 per passenger.Departing Sat, 10 Jan, returning Sun, 25 Jan.Return flight with SriLankan Airlines.Outbound indirect flight with SriLankan Airlines, departs from Incheon International on Sat, 10 Jan, arriving in Kathmandu.Inbound indirect flight with SriLankan Airlines, departs from Kathmandu on Sun, 25 Jan, arriving in Incheon International.Price includes taxes and charges.From $520, select.

Find the cheapest month to fly from Incheon International to Kathmandu

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like Incheon International to Kathmandu flights are currently cheapest in July.
Jun
from $794
Jul
from $479
Aug
from $491
Sep
from $520
Oct
from $520
Nov
from $518
Dec
from $683
Jan
from $520
Feb
from $590
Mar
from $683
Apr
from $684
May
from $515

Direct flights from Incheon International to Kathmandu

Incheon International to Kathmandu: Alternative routes

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

Seoul to Kathmandu: Flight information

The things to know before you go.
Cheapest flight found$479
Cheapest month to flyJuly
Average flight time7 hrs, 8 mins
Most popular airlineKorean Air
Average flights per week3

Finding cheap flights from Incheon International to Kathmandu: Frequently asked questions

The best price we found for a return flight from Incheon International to Kathmandu is $479. 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.
7 hours and 8 minutes is the average flight time from Incheon International to Kathmandu.
Korean Air flies direct from Incheon International to Kathmandu.
As of June 2025, there are 3 flights per week flying from Incheon International to Kathmandu.
The cheapest month to fly from Incheon International to Kathmandu is usually June 2025.
After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from Incheon International Airport to Kathmandu Airport on Saturday, 5 July 2025.
Yes – the average flight time is 7 hours and 8 minutes.
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.
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.
Currently, China Eastern and Korean Air offer the cheapest flight tickets to Kathmandu.

Flying from Incheon International Airport (ICN) to Tribhuvan International Airport (KTM): what you need to know

  • The average time for a direct flight from Incheon International Airport to Tribhuvan International Airport is 7 hours 25 minutes.

  • The timezone in Kathmandu is UTC+5:47, which is three hours 12 minutes behind Seoul.

  • Take your pick of five weekly Incheon International Airport to Tribhuvan International Airport flights. The 13:25 departure with Korean Air is the earliest you can take. Korean Air operates the latest service of the day at 13:40.

  • To ensure you catch your ICN to KTM flight, leave plenty of time to check in and find your gate. Arriving two hours before international departures and an hour before domestic flights is the standard rule.

  • During popular months such as July, it's best to get to the airport earlier. Arrive two hours before domestic departures and four hours ahead of an international flight whenever you're flying during peak periods in general.

  • Korean Air is your gateway to exploring Kathmandu (and maybe even some other exciting corners of Nepal!). Check out the direct flights from Incheon International Airport to Tribhuvan International Airport offered by this airline.

  • Most travellers choose to fly with Korean Air on this route.

  • Among carriers operating ICN to KTM flights, Korean Air has the highest rate of on-time arrivals.

  • We make it simple to book a flight with a stopover. To see your options for tickets from Incheon International Airport to Tribhuvan International Airport, uncheck 'Direct flights only.' Then, choose a flight with a stop long enough to tour the city of your choice. Top stopovers between ICN and KTM include:

    • Hong Kong International Airport

    • Guangzhou Baiyun International Airport

    • Suvarnabhumi Airport

How to find the cheapest flights from Incheon International Airport (ICN) to Tribhuvan International Airport (KTM)

  • At the moment, $220 is the lowest price we've found for a one-way Incheon International Airport to Tribhuvan International Airport flight. The best price for a return ticket is $479. Remember that fares may change due to demand at the time of booking.

  • To score cheap tickets from ICN to KTM, reserve your journey five months before your planned departure.

  • Plan your trip for April. That's the cheapest month for flights from Incheon International Airport to Tribhuvan International Airport. If you're flexible on when you fly, try out the 'Whole month' tool to see the lowest price across each month.

  • You don't need to check back in every day to find out if fares have dropped when you set up a Price Alert. We'll notify you the moment a special offer becomes available on cheap flights from ICN to KTM.

  • Pick your preferred arrival and departure times, airlines and number of stops with the filters. Alternatively, sort your results by 'Cheapest' to see the best deals on flights from Incheon International Airport to Tribhuvan International Airport.

Handy information about Incheon International Airport (ICN)

  • Of the departures from Incheon International Airport, 54.5% arrive as scheduled at their destination.

  • The journey from central Seoul to Incheon International Airport is around 48 kilometres. Look up Google Maps for the best way to get there, whether in your own car or with public transport.

  • Expect a journey time of about 1 hour 45 minutes when using public transport.

  • Searching for a handy hotel near ICN? If you're catching an early flight from Incheon International Airport to Tribhuvan International Airport, these accommodation options will put you moments from your departure gate:

Arriving at Tribhuvan International Airport (KTM)

  • If you're arriving on a late Incheon International Airport to Tribhuvan International Airport flight, few things beat the convenience of staying close to the terminal. Collect your bags from the carousel and then be showered and sleeping not long after at one of these accommodation options near KTM:

  • Enjoy the freedom to roam with a Tribhuvan International Airport rental car. Pick up a set of wheels from Spark Car to explore Kathmandu and beyond.

  • To lock in the lowest price, book your ride from Tribhuvan International Airport around one week before you travel.

Getting from Tribhuvan International Airport (KTM) to central Kathmandu

  • From Tribhuvan International Airport, Kathmandu is approximately 5 kilometres away. It takes around 15 minutes to drive to the centre.

When to fly to Tribhuvan International Airport (KTM)

  • It's time to pick your trip dates for your flight from Incheon International Airport to Tribhuvan International Airport. September is the busiest month to head to Kathmandu. If you prefer a more laid-back vibe, go in February.

  • Book your flight from Incheon International Airport to Tribhuvan International Airport for June if you want to go to Kathmandu during its warmest month. Expect temperatures of between 17ºC (63ºF) and 28ºC (82ºF).

  • If you'd rather travel in cooler conditions, search for a cheap ticket from ICN to KTM in January. Temperatures average between 3ºC (37ºF) and 18ºC (64ºF) then.

Explore more of Nepal

  • Kathmandu has plenty going for it, but there are so many other parts of Nepal you'll want to see. About 145 kilometres north-west of Kathmandu, a trip to Pokhara will keep you on the go. Start with popular sights like Phewa Lake, Sarangkot and Gupteshwor Mahadev Cave.

  • Patan is another sought-after destination in Nepal and is around 6 kilometres south of Kathmandu. No journey is complete without experiencing Aspur Agro Farm, Pimbahaa Pukhoo and Rajib Handicraft.

Plan the rest of your trip from Seoul to Kathmandu

Prices shown on this page are estimated lowest prices only. Found in the last 45 days.