Cheapest€669.20
- Asiana Airlines AA882518:5612h 23m15:19Seoul ICNSan Francisco SFO
Door to door 15h 33mCO2 1376.4 kgChanges 0Fixed, no changes
Seoul to San Francisco flight
Flights from Seoul to San Francisco start at €669.20 and take 15h 17m at their fastest.
Check dates and fares
Fares and seats move by the day. Price Seoul to San Francisco on the date you actually want, rather than on the date this page was built.
The Flights from Seoul to San Francisco starts at €669.20 and takes 15h 17m door to door, run by 3 operators over 9,300 km, with around 19 departures a day. Fares bottom out about 60 days before departure.
- 15h 17mDoor to door
- 12h 7mMoving
- €842.07 to €1,668.07From
- 06:06 to 19:11First and last departure
- 19Per day
- 1376.4 kgCO2
First and last are taken from the services we sell on October 6, 2026. The return direction keeps its own timetable and is not these times reversed.
€842.07 to €1,668.07 for one passenger across the 14 departure dates priced here. The low end is one day, not every day. Worked out from this corridor rather than held for anybody. The operator sets the price on the day.
Fares by date
What this journey usually costs, by departure date. It shows which days run dearer.
Typical fares
- about €1,668.07Fri18
- about €1,663.94Sat19
- about €1,259.20Sun20
- about €1,163.03Mon21
- about €1,052.11Tue22
- about €1,176.60Wed23
- about €1,172.47Thu24
- about €1,071.58Fri25
- about €1,151.82Sat26
- about €1,053.29Sun27
- about €881.01Mon28
- about €842.07Tue29
- about €911.10Wed30
- about €918.18Thu1
Based on what this route has cost recently. The operator sets the price on the day, and the live fare is confirmed when you book.
The cheapest and the fastest on October 6, 2026
Fastest€714.04
- Asiana Airlines AA679213:0312h 7m09:10Seoul ICNSan Francisco SFO
Door to door 15h 17mCO2 1376.4 kgChanges 0Fixed, no changes
Airlines
| Operator | From | Fastest |
|---|---|---|
 Korean Air | €695.16 | 15h 15m |
 Asiana Airlines | €669.20 | 15h 14m |
| United Airlines | €688.67 | 15h 18m |
The flight gets you into San Francisco. It does not get you a bed, and neither do we.
A room in San Francisco for the night the flight gets in
Sort by distance from San Francisco 4th and King and you can see which places are ten minutes on foot and which are not.
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When to book Seoul to San Francisco
The same search run across the whole booking window, so the shape of the curve is visible rather than described.
- €747.0890 days
- €546.4860 days
- €628.4945 days
- €723.4830 days
- €905.2021 days
- €918.1814 days
- €1,172.477 days
- €1,259.203 days
- €1,668.071 days
- Cheapest lead time
- Fares bottom out around 60 days ahead, at €546.48.
- How much it moves
- The gap between the cheapest and most expensive lead time is 205 percent. The most expensive point is €1,668.07, 1 days out.
- What that means
- Today sits inside the cheap window, which closes about 60 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.
- €1,053.29Sun
- €881.01Mon
- €842.07Tue
- €911.10Wed
- €918.18Thu
- €1,071.58Fri
- €1,151.82Sat
Where you leave from and where you arrive
Seoul
Air
- ICN
- GMP
San Francisco
Air
- SFO
What the journey looks like
- Direct or connecting
- 79% of the services we sell on this corridor run through without a change. The remaining 21% involve one connection.
- How far it really runs
- The route covers 9,300 km against 9,029 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 Portland, Seattle, Anchorage, Tokyo. The gap between arriving and leaving is 67 minutes, of which about 5 is walking.
- If the connection is missed
- The tightest connection we sell here has a 14 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 Seoul at 06:06 and the last at 19:11, across 19 departures The return direction keeps its own timetable, so the times back are not these times reversed.
Questions about Seoul to San Francisco
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 Seoul to San Francisco take?
The Flight from Seoul to San Francisco takes 15h 17m door to door, of which 12h 7m is spent moving. The route runs 9,300 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 Seoul to San Francisco cost?
The Flight from Seoul to San Francisco starts at €669.20 for one passenger, as of September 17, 2026. A typical fare is €835.58. 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 Seoul to San Francisco?
3 operators run the Flight from Seoul to San Francisco: Korean Air, Asiana Airlines, United Airlines. Between them they file around 19 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 Seoul to San Francisco use?
The Flight from Seoul to San Francisco leaves from Seoul ICN and arrives at San Francisco SFO. 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 Seoul to San Francisco?
Fares for the Flight from Seoul to San Francisco bottom out around 60 days ahead, at €546.48. The gap between the cheapest and most expensive lead time across the window is 205 percent, measured on September 17, 2026. Booking inside the final week has consistently cost more.
How much CO2 does the Flight from Seoul to San Francisco produce?
The Flight from Seoul to San Francisco produces about 1376.4 kg of CO2 per passenger over 9300 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
Places, coordinates, operators, which operator serves which pair, and every distance on this page are real and come from open data. Where a corridor has a filed timetable the departure times are real too, and ferry fares are the prices the operators publish themselves.
Derived from service area No carrier record names this exact pair. The operators listed publish a service area covering both places at a distance their mode plausibly carries people, which is evidence that the corridor is served and not evidence of a specific service. Pages state which, because presenting the two as the same thing would be dishonest.
Where no operator publishes a fare for a corridor, the price here is our own estimate, worked out from the real distance and the real operator through a fare curve that follows lead time, day of the week and season. It tells you roughly what the journey costs. It is not a seat anyone has agreed to sell, and the payment step will not take it.
Defined in full at Door to door, Fares, The booking window, Carbon
- On this page
- Every figure above was computed for Seoul to San Francisco on September 17, 2026: 9300 km of route against 9029 km in a straight line, 19 services a day, 3 operators a cheapest fare of €669.20, and 15h 17m door to door on the fastest mode. The return direction is computed separately and its numbers are not these numbers.
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