Cheapest€343.52
- Korean Air KA212806:126h 2m12:14Kathmandu KTMSeoul ICN
Door to door 9h 12mCO2 612.3 kgChanges 0Fixed, no changes
Kathmandu to Seoul flight
Flights from Kathmandu to Seoul start at €482.17 and take 9h 12m at their fastest.
The Flights from Kathmandu to Seoul starts at €482.17 and takes 9h 12m door to door, run by 1 operator over 4,137 km, with around 5 departures a day. Fares bottom out about 30 days before departure.
- 9h 12mDoor to door
- 6h 2mMoving
- €482.17From
- 612.3 kgCO2
The cheapest and the fastest on September 30, 2026
Two journeys we can sell today, with the service number each operator files them under.
Airlines
Speed, flexibility and what is on board. Nothing here is a rating, because we have not earned one.
| Operator | From | Fastest | Typical speed | Flexibility | On board |
|---|---|---|---|---|---|
 Korean Air | €343.52 | 8h 48m | 740 km/h | Fixed fare | Not published |
That is the traveling done. What happens after you walk out into Seoul is not something we sell.
Looking for somewhere to stay in Seoul?
Sort by distance from Seoul Station and you can see which places are ten minutes on foot and which are not.
Search Seoul on Trip.comOr compare on Booking.com
Partner links. We do not sell accommodation. We earn a commission when a booking completes, and it never changes what you pay.
When to book Kathmandu to Seoul
The same search run across the whole booking window, so the shape of the curve is visible rather than described.
- €473.9190 days
- €308.1260 days
- €282.1645 days
- €281.5730 days
- €442.6421 days
- €625.5414 days
- €713.457 days
- €590.143 days
- €935.881 days
- Cheapest lead time
- Fares bottom out around 30 days ahead, at €281.57.
- How much it moves
- The gap between the cheapest and most expensive lead time is 232 percent. The most expensive point is €935.88, 1 days out.
- What that means
- Today sits inside the cheap window, which closes about 30 days before departure. Waiting from here has usually cost money on this corridor rather than saved it.
Which departure day costs least
Median cheapest fare for each weekday, taken across the next three weeks of real prices.
- €561.23Sun
- €488.66Mon
- €487.48Tue
- €482.17Wed
- €627.90Thu
- €512.26Fri
- €625.54Sat
Where you leave from and where you arrive
The stations, airports and ports each mode on this corridor actually uses.
Kathmandu
Air
- KTM
Seoul
Air
- ICN
- GMP
What the journey actually looks like
Direct or connecting, how far the route really runs, and what happens when a connection is missed.
- Direct or connecting
- 20% of the services we sell on this corridor run through without a change. The remaining 80% involve one connection.
- How far it really runs
- The route covers 4,137 km against 4,017 km in a straight line, a detour of 3 percent. Track and road geometry account for the difference.
- Where the change is
- Connections are made at Chengdu, Kunming, Hong Kong, Guangzhou. The gap between arriving and leaving is 51 minutes, of which about 5 is walking.
- If the connection is missed
- The tightest connection we sell here has a 18 percent chance of not being made on the timetable alone. Part of this journey is a self transfer between separate tickets, so leave more time than the minimum and expect to check in again.
- First and last departure
- The first service of the day leaves Kathmandu at 06:12 and the last at 07:30, across 5 departures. The return direction keeps its own timetable, so the times back are not these times reversed.
Questions about Kathmandu to Seoul
The questions people actually ask about this trip, answered from the same prices and times the page above is built on rather than written once and left to go stale.
How long does the Flight from Kathmandu to Seoul take?
The Flight from Kathmandu to Seoul takes 9h 12m door to door, of which 6h 2m is spent moving. The route runs 4,137 km. The difference between the two times is reaching the terminal and leaving it at the far end, which every time on this page includes.
How much does the Flight from Kathmandu to Seoul cost?
The Flight from Kathmandu to Seoul starts at €482.17 for one passenger, checked on September 12, 2026. A typical fare is €447.36. Both are the total including taxes, supplier fees and our service fee, so the price here is the price at checkout.
Who runs the Flight from Kathmandu to Seoul?
1 operators run the Flight from Kathmandu to Seoul: Korean Air. Between them they file around 5 departures a day. The operator table on this page compares them on fare, journey time, cruising speed, fare conditions and what is provided on board.
Which terminal does the Flight from Kathmandu to Seoul use?
The Flight from Kathmandu to Seoul leaves from Kathmandu KTM and arrives at Seoul ICN. Allow about 3h 10m for reaching the departure terminal and leaving the arrival one. That time is already inside every door to door figure quoted on this page.
When should I book the Flight from Kathmandu to Seoul?
Fares for the Flight from Kathmandu to Seoul bottom out around 30 days ahead, at €281.57. The gap between the cheapest and most expensive lead time across the window is 232 percent, measured on September 12, 2026. Booking inside the final week has consistently cost more.
How much CO2 does the Flight from Kathmandu to Seoul produce?
The Flight from Kathmandu to Seoul produces about 612.3 kg of CO2 per passenger over 4137 km, which works out at roughly 148 grams per passenger kilometer. That figure is for the whole journey and for one traveler, not for the vehicle.
Where these numbers come from
Observed service A carrier record shows this named operator serving this named pair, and we carry that through unchanged.
Schedules, seat counts and fares are generated by our own model until the supplier contracts are signed. Places, coordinates, operators, which operator serves which pair, and every distance are real. We would rather say that on every page than let a modeled number pass for a filed one.
Defined in full at Door to door, Fares, The booking window, Carbon
- On this page
- Every figure above was computed for Kathmandu to Seoul on September 12, 2026: 4137 km of route against 4017 km in a straight line, 5 services a day, 1 operators, a cheapest fare of €482.17, and 9h 12m door to door on the fastest mode. The return direction is computed separately and its numbers are not these numbers.
Related journeys
Seoul to Kathmandu flightCompare every mode from Kathmandu to SeoulAbu Dhabi to Seoul flightAkita to Seoul flightAlmaty to Seoul flightAmsterdam to Seoul flightAnchorage to Seoul flightAomori to Seoul flightArtyom to Seoul flightAsahikawa to Seoul flightAtlanta to Seoul flightAuckland to Seoul flightBangkok to Seoul flightBarcelona to Seoul flight