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Cheap flights from Seoul to Kathmandu (ICN–KTM)

ICNIncheon International Airport
South Korea
KTMTribhuvan International Airport
Nepal

Korean Air flies Seoul to Kathmandu (ICN–KTM) nonstop and back, a great-circle distance of 3,970 km (2,460 mi).

From
ICN
Seoul
To
KTM
Kathmandu
Nonstop
Yes · 1 airline
Airlines
KE
Cheapest fare found
₩285,961 one-way
Distance
3,970 km (2,460 mi)
Time difference
Kathmandu 3 hours 15 minutes behind

Network data imported from airport and airline sources:· How we verify

Seoul to Kathmandu fares by month

Cheapest one-way fare found: ₩285,961 for October 2026 on Sichuan Airlines (1 stop).

  1. Oct ’26₩285,961
  2. Nov ’26₩291,427
  3. Dec ’26₩287,038
  4. Jan ’27₩384,530
  5. Feb ’27₩504,211
  6. Apr ’27₩394,769
  7. May ’27₩454,685
  8. Jun ’27₩477,090
  9. Aug ’27₩504,211

Cheapest one-way fares per month of departure in the Aviasales price cache, found . Fares change by the hour: the live fare is shown when you search.

When to fly ICN–KTM

For Seoul Incheon (ICN) to Kathmandu Tribhuvan (KTM), October 2026 had the lowest fare found (₩285,961). Days in Kathmandu average 18–28 °C in January, February, March, October, November and December. Set your watch 3 hours 15 minutes back on landing at KTM.

Seoul to Kathmandu: frequently asked questions

Fares: Aviasales price cache, 8 October 2026.

How much is a flight from Seoul Incheon (ICN) to Kathmandu Tribhuvan (KTM)?

From ₩285,961 one-way, the cheapest fare found for October 2026 on Sichuan Airlines with 1 stop (found 8 October 2026).

Which airlines fly ICN–KTM direct?

Korean Air.

What is the cheapest month to fly ICN–KTM?

October 2026, at ₩285,961; the dearest month found was ₩504,211.

What is the time difference between Seoul and Kathmandu?

Kathmandu is 3 hours 15 minutes behind Seoul: a ICN departure at noon is 08:45 local time in KTM.

Kathmandu to Seoul: the return flight (KTM–ICN)

All 1 airline also flies KTM–ICN nonstop.

Airlines flying ICN–KTM nonstop

AirlineUsually takes off (ICN time)TypeAllianceNotes
Korean Air KE—full-serviceSkyTeam—

One-stop alternatives to flying ICN–KTM nonstop

One airline on both legs; check it's sold as one ticket.

  • Via Kunming (KMG) with China Eastern Airlines: 4,380 km (2,720 mi) flown, 11% further than nonstop.
  • Via Guangzhou (CAN) with China Southern Airlines: 4,840 km (3,010 mi) flown, 22% further than nonstop.
  • Via Hong Kong (HKG) with Cathay Pacific: 5,000 km (3,110 mi) flown, 26% further than nonstop.
  • Via Delhi (DEL) with Air India: 5,470 km (3,400 mi) flown, 38% further than nonstop.

ICN–KTM route map

Great-circle distance 3,970 km (2,460 mi). Illustrative route, not an actual flight track.

More from Seoul and Kathmandu

Explore the airlines’ route maps

Plan your arrival at Tribhuvan International Airport (KTM)

Departure

Incheon International Airport

Incheon (ICN), Seoul. In our data, 83 airlines fly nonstop from ICN to 157 destinations.

View ICN airport guide →

Arrival

Tribhuvan International Airport

Tribhuvan (KTM), Kathmandu.

Weather in Kathmandu by month

Onward from Kathmandu

Places you can't fly to nonstop from ICN, but can from KTM — for a stopover or a second leg.

  • KTM → BOM Mumbai, India · 1,590 km
  • KTM → SIF Simara, Nepal · 70 km
  • KTM → BHR Bharatpur, Nepal · 92 km
  • KTM → JKR Janakpur, Nepal · 123 km
  • KTM → TMI Tumling Tar, Nepal · 186 km
  • KTM → BWA Siddharthanagar, Nepal · 193 km
  • KTM → BIR Biratnagar, Nepal · 232 km
  • KTM → TPJ Taplejung, Nepal · 234 km

Related routes

Sources

  • en.wikipedia.org — airlines and destinations, checked 2026-10-01
  • en.wikipedia.org — airlines and destinations, checked 2026-10-01
  • en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
  • en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
  • en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
  • en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
  • en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
  • en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
  • en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
  • en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
  • en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
  • en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
  • en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
  • en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
  • en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
  • en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
  • en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
  • en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
  • en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
  • en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
  • en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
  • en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
  • en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
  • en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
  • en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
  • en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
  • en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
  • en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
  • en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
  • en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
  • en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
  • en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
  • en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
  • en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
  • en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
  • en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
  • en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
  • en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
  • en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
  • en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
  • en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
  • en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01

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