Cheap flights from Seoul to San Francisco

One-way fares from $379 · SEL → SFO · prices found by travellers in the last 48 hours

Cheapest fare
$379

Air Premia · Sun, Dec 20

Cheapest month
December

from $379

Direct flights
Yes

United Airlines and Air Premia

Flight time
10h 35m

9,030 km

Get a price alert

We'll email you when Seoul → San Francisco drops to your price. It's free, and you can stop any time.

Today's cheapest fare is $379. We'll send one email to confirm. See our privacy policy.

Cheapest month to fly from Seoul to San Francisco

Lowest one-way fare per person in each month. Choose a month to see every date.

  1. November 2026 $447
  2. December 2026 Cheapest $379
  3. January 2027 $515

Cheapest dates in December 2026

The lowest fares we've seen for each day, cheapest first.

Air Premia
Depart19:45 Sun, Dec 20ICN → SFO 10h 35m · Direct
$379one way, per person
View deal
Air Premia
Depart19:45 Sat, Dec 19ICN → SFO 10h 35m · Direct
$382one way, per person
View deal
Air Canada
Depart18:55 Sat, Dec 26ICN → SFO 12h 16m · 1 stop
$468one way, per person
View deal
Air Canada
Depart18:55 Thu, Dec 24ICN → SFO 12h 24m · 1 stop
$479one way, per person
View deal
Air Premia
Depart19:45 Sun, Dec 27ICN → SFO 10h 35m · Direct
$560one way, per person
View deal
Air Canada
Depart18:55 Mon, Dec 28ICN → SFO 12h 16m · 1 stop
$638one way, per person
View deal
See every date in December 2026 →

Plan the rest of your trip to San Francisco

Where to stay, what to do and getting around, from our travel partners.

About flights from Seoul to San Francisco

Seoul (SEL) and San Francisco (SFO) are about 9,030 km apart. Direct flights take around 10h 35m, and recent direct fares were with United Airlines and Air Premia. Over the next few months, one-way fares start from $379, and December 2026 is currently the cheapest month to fly.

These prices come from searches travellers made in the last 48 hours, so they move quickly. If you see a good fare, it's worth booking soon. FlightsExp is free to use: you book directly with our travel partner.

Frequently asked questions

How much is a flight from Seoul to San Francisco?

The cheapest one-way fare we've seen recently is $379 with Air Premia, departing Sunday, December 20, 2026. Over the coming months, the lowest fare in each month ranges from $379 to $515.

What is the cheapest month to fly from Seoul to San Francisco?

December 2026 currently has the lowest fares, from $379 one way.

Are there direct flights from Seoul to San Francisco?

Yes. Recent direct fares were with United Airlines and Air Premia.

How long is the flight from Seoul to San Francisco?

A direct flight takes about 10h 35m. Seoul and San Francisco are around 9,030 km apart.

Which airlines fly from Seoul to San Francisco?

Recent fares on this route were with United Airlines, Air Premia and Air Canada.

More cheap flights from Seoul

Compare flights to San Francisco from other cities →