Cheap flights from Seoul to Kathmandu from $431 GMP, ICN → KTM
Gimpo International Airport (GMP), Incheon International Airport (ICN) → Tribhuvan International Airport (KTM)
The cheapest return found recently is $431 with China Eastern, 11 Dec – 21 Dec, found yesterday.
- Cheapest return found recently
- $431, 11 Dec to 21 Dec
- Usual return price
- $462 to $513
- Cheapest month to fly
- December 2026, return fares from $431 found in the last 7 days
Return
The cheapest return fare on each of 4 departure dates is usually $462 to $513.
Cheapest return found recently
$431
11 Dec – 21 Dec · China Eastern
Incheon International Airport (ICN) → Tribhuvan International Airport (KTM)
Leaves 7:55 p.m. · Return leaves 4:05 p.m. · 42 h 10 min of travel, both ways together
out 2 stops, back 2 stops · via Xianyang International Airport (XIY), Kunming Changshui International Airport (KMG), Shanghai Pudong International Airport (PVG) · overnight connection · 10 h connection
found yesterday
Cheapest nonstop return
None seen yet.
Found recently, and the cheapest we hold
$431 11 Dec – 21 Decfound yesterdaySee prices for these dates
It is also the cheapest return we hold, of any age.
What have prices looked like?
Over 43 days, 24 Sept to 12 Nov, the cheapest return we saw each day was $418 to $510.
Those were the prices on those days, not today's.
Is this a good return price?
Compared with the cheapest return fare on each of 4 departure dates from 9 Dec to 21 Oct 2027, found by travelers' searches in the last 7 days (economy, the price the seller showed on Aviasales). The usual range is the middle half of those prices.
Could nearby dates be cheaper?
No. We hold 10-night return fares on 1 other departure date within 3 days of 11 Dec, and it is not cheaper.
Every date we hold
40 fares on 4 departure dates
See the chart as a table
| Dates | From | Airline | Airports | Stops | Found | |
|---|---|---|---|---|---|---|
| 9 Dec – 18 Dec | $474 | China Eastern | Incheon International Airport (ICN) → Tribhuvan International Airport (KTM) | out 2 stops, back 2 stops | found 5 days ago | See prices for these dates |
| 11 Dec – 21 Dec | $431 | China Eastern | Incheon International Airport (ICN) → Tribhuvan International Airport (KTM) | out 2 stops, back 2 stops | found yesterday | See prices for these dates |
| 3 Aug 2027 – 10 Aug 2027 | $631 | Malaysia Airlines | Incheon International Airport (ICN) → Tribhuvan International Airport (KTM) | out 1 stop, back 1 stop | found 3 days ago | See prices for these dates |
| 21 Oct 2027 – 28 Oct 2027 | $472 | China Eastern | Incheon International Airport (ICN) → Tribhuvan International Airport (KTM) | out 2 stops, back 2 stops | found 6 days ago | See prices for these dates |
Which month looks cheapest?
December 2026 is the cheapest month — from $431.
Airlines on the cheapest dates: China Eastern, Malaysia Airlines.
Premium cabin fares from Seoul to Kathmandu
We hold no premium economy, business or first-class fares for this route: we collect them for the busiest routes, and this one is not among them yet.
Today's prices for 11 Dec – 21 Dec in another cabin: Premium economy · Business · First
How far ahead were prices cheapest for Seoul to Kathmandu?
Return
The cheapest fares were 14 to 29 days before departure.
From the cheapest return each day between 24 Sept and 12 Nov (43 days), grouped by how many days ahead the flight left; one adult in economy.
Each range covers different departure dates, so this compares typical fares, not the same trip priced twice.
Prices reflect recent searches — current fares may differ.
See these ranges as a table
| Booked ahead by | Typical fare | Cheapest day | Above the cheapest | Days of prices |
|---|---|---|---|---|
| 14–29 days | $455 | $431 | Cheapest seen | 10 |
| 30–59 days | $473 | $418 | +4% | 36 |
| 60–89 days | $510 | $429 | +12% | 18 |
| 180+ days | $472 | $472 | +4% | 8 |
Could a nearby airport be cheaper?
A different airport at either end can change the fare — sometimes a lot.
Return
Seoul → Pokhara
142 km from Kathmandu
$688
$257 more than flying to Kathmandu
14 Dec – 25 Dec · ICN → PKR · out 2 stops, back 2 stops
found 5 days ago
Cheapest recent price on each route — round trip, per traveler in Economy. Distances are in a straight line.
Live price for these dates
The cheapest return found recently is for 11 Dec – 21 Dec. A live search on this page shows what those dates cost now, for one adult in economy.
Questions about this trip
How much is a return flight from Seoul to Kathmandu?
The cheapest return found recently is $431 with China Eastern, 11 Dec to 21 Dec, found yesterday. The cheapest return fare on each of 4 departure dates is usually $462 to $513.
What is the cheapest month to fly from Seoul to Kathmandu?
December 2026 is the cheapest month for a return, from $431, 11 Dec to 21 Dec, found yesterday.
How far ahead should I book a flight from Seoul to Kathmandu?
In 43 days of prices between 24 Sept and 12 Nov, return fares were cheapest 14 to 29 days before departure.
Which airlines have the cheapest flights from Seoul to Kathmandu?
Between 9 Dec and 21 Oct 2027, China Eastern has the cheapest return on 3 of the 4 departure dates we hold, and Malaysia Airlines on 1.
Prices are what travelers' searches on Aviasales found in the last 7 days, in US dollars: the price the seller showed on Aviasales; bags may cost extra. Fares change, so check today's price before you book. How our prices work