ExceptionalNonstop · 1.5h
SFO to LASUnited States
Las Vegas
$61
usually $155
−61%
Most monthly lows $130–$295. Cheaper than every other month on record (5).
Flights · SFO → SEL
San Francisco to Seoul
Best fare, round trip
$648
−52%
below its usual $1,355
you keep $707
RareFound
- Depart
- Fri 19 Feb
- Return
- Sun 28 Feb
- Stay
- 9 nights
- Flight
- Nonstop · 13h
- Airline
Air Premia
Most of this route’s monthly lows fall between $802 and $1,357. The drop beats 96% of measured fares on the board, over 4 observed months.
Cached fare — the booking search re-prices live before you pay.
South KoreaSeoulPalaces wedged between skyscrapers, barbecue smoke at midnight, cafés that outnumber people.Best windowApr–May · Sep–OctAirportsIncheon (ICN) · Gimpo (GMP)Every route into SeoulFare seasonality
When this route gets cheap.
Fares bottom out in February around $648 and peak in January near $2,295, 254% dearer, across the 4 months we track. The cheapest itinerary we are tracking flies Air Premia nonstop and takes about 13 hours outbound, on a 9-night trip. At $648 for 9,029 km each way, that works out to about $36 per 1,000 km flown. That is below the $44 per 1,000 km typical of long-haul fares here. Across the 30 departure cities we track at a similar distance from Seoul, this fare ranks 16th — 41% above the $458 from Istanbul. That puts it in the cheaper half of the 40 routes of similar length we watch out of San Francisco, where the middle fare is $835. The best time to be in Seoul: Apr–May · Sep–Oct.
The 5 days we hold a cached fare for
Press a date to compare its fares
The median cached fare across this calendar is 117% higher than when tracking began on 8 Aug — $685 then versus $1,487 now, across 22 recorded snapshots. This is a calendar-level trend, so an individual deal above can be lower. The lowest single day we have seen here is $484, on 4 Nov.
These are the only days we have a cached price for on this route so far — not the only days it flies. The search above covers any date.
Cached fares · checked 17 Oct 2026
Cheapest in Feb, around $648
52% below the $1,355 typical fare
$802Nov, below the usual price. Compare November fares.$1357Dec, around the usual price. Compare December fares.$2295Jan ’27, above the usual price. Compare January fares.$648Feb, the cheapest month. Compare February fares.
CheapestBelow usualUsualAbove usualPress a month to compare its fares
Cheapest round-trip fare found each month, San Francisco to Seoul, from cached prices.
Route facts
- Airports
- SFO · Oakland (OAK) · San José (SJC) ↔ Incheon (ICN) · Gimpo (GMP)
- Flight time
- ≈13 hours outbound
- Distance
- ≈9,029 km each way
- Typical price
- $1,355 round-trip (seasonal median)
- Airlines on the board
- Air Premia
- Itineraries
- Nonstop available
- Best months to visit
- Apr–May · Sep–Oct
Good to know
SF → SEL, answered.
Is $648 a good price for San Francisco to Seoul?
Yes — the seasonal median for this route is around $1,355 round-trip. At $648 you're 52% below that, which we rate rare for this route.
What is the cheapest month to fly from San Francisco to Seoul?
Across 4 months of cached-fare history, Feb comes out cheapest on this route. The best months to actually be in Seoul are Apr–May · Sep–Oct — when those overlap, that's your window.
How far in advance should I book SF → Seoul?
We do not publish a number for this, because we cannot measure it yet. Answering it honestly means watching the same departure date on this route over many weeks as it approaches, and that archive is still filling up — so any "book N days ahead" figure here would be borrowed from somewhere else rather than measured. What we can measure is which month is cheap: across 4 months of cached fares, Feb comes out lowest on this route. Our guide Why flight prices change covers what does move a fare.
Are there nonstop flights from San Francisco to Seoul?
Yes — the current board includes nonstop fares (Air Premia). The outbound leg runs around 13 hours.
Are these prices guaranteed?
No — these are cached fares found on real searches (this one on 17 October). Airlines reprice constantly, so the booking search re-checks the live price before you pay. Fresher finds are far more likely to still be available.
Next step
Sleeping in Seoul?
Lock the flight first — then compare stays for 19–28 Feb '27 · 9 nights.
Browse hotelsMissed it?
Cached fares expire. This route has a feed of its own — follow it and the next SF → SEL drop reaches you as soon as we find it.
Follow this route’s feedKeep browsing
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