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Cheap flights from San Francisco to Seoul

One-way from $342, found by travellers in the last 7 days. Aviasales checks the live price.

Departure
Return
Prices for nearby dates
Fri, Oct 23$399Sat, Oct 24Any priceSun, Oct 25$345Mon, Oct 26$342Tue, Oct 27$353Wed, Oct 28Any priceThu, Oct 29Any priceFri, Oct 30Any price

Cheapest one-way tickets

Recent finds on different dates, for 1 adult. Baggage and fare rules are shown on Aviasales, where the price is checked live.

Cheapest
$342
United Airlines, flight UA 1149Found yesterday, 1 adult
Check price on Aviasales
4:30pmSan FranciscoMon, Oct 26
Travel time 21h 24m, 1 stopSFOICN
5:54amSeoulWed, Oct 28
Cheapest nonstop
$345
United Airlines, flight UA 893Found 4 days ago, 1 adult
Check price on Aviasales
11:20amSan FranciscoSun, Oct 25
Travel time 12h 55m, nonstopSFOICN
4:15pmSeoulMon, Oct 26
$349
Air Premia, flight YP 112Found 3 days ago, 1 adult
Check price on Aviasales
3:20pmSan FranciscoSun, Jan 31
Travel time 13h, nonstopSFOICN
9:20pmSeoulMon, Feb 1
$353
United Airlines, flight UA 1141Found 6 days ago, 1 adult
Check price on Aviasales
11:59pmSan FranciscoTue, Oct 27
Travel time 21h 21m, 1 stopSFOICN
1:20pmSeoulThu, Oct 29
$358
United Airlines, flight UA 649Found 7 days ago, 1 adult
Check price on Aviasales
10:50pmSan FranciscoMon, Mar 22
Travel time 21h 39m, 1 stopSFOICN
12:29pmSeoulWed, Mar 24

Round trips

The cheapest return tickets found recently, price for the whole trip.

Plan the rest of the trip

  • Mobile data in South KoreaTravel eSIM from $4, installed before you fly.
    Compare plans
  • Getting from the airportTransfers and car hire in Seoul, booked ahead at a fixed price.
    See options
  • Things to do in SeoulPopular tours from $32 per person.
    See ideas
  • Travel insuranceTravel insurance quotes for South Korea from EKTA; check what each policy covers.
    Get a quote
  • Flight delayed?Delayed or cancelled? See which passenger rights cover this route.
    Check

Price calendar

The lowest one-way fare found for each day over the next 60 days. A dash means no recent fare; you can still pick that day.

October 2026

MoTuWeThFrSaSu1234$3765–6–7–8–9–10–11–12–13–14–15–16–17–18–19–20–21–22–23$39924–25$34526$34227$35328–29–30–31–

November 2026

MoTuWeThFrSaSu1–2–3–4–5$4346–7–8–9–10–11–12–13$36314–15–16–17–18–19–20–21–22–23–24–25–26–27–28–29–30–

December 2026

MoTuWeThFrSaSu1–2–345678910111213141516171819202122232425262728293031
$353 or lessGreen: the cheapest fifth of fares on this route. Lowest in these 60 days: Oct 26, $342.

Lowest fares by month

In the fares found this week, October has the lowest: from $342 one-way, against $584 in December. Pick a month to see its cheapest date.

$0$200$400$600$342OctNovDecJanFebMarAprMayJunJulAugSep
Show as a table
MonthCheapest one-wayDateStops
October$342Mon, Oct 261 stop
November$363Fri, Nov 13Nonstop
December$584Sat, Dec 261 stop
January 2027$349Sun, Jan 31Nonstop
February 2027—
March 2027$358Mon, Mar 221 stop
April 2027—
May 2027—
June 2027—
July 2027—
August 2027—
September 2027—

Questions travellers ask

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

In the fares found this week, October has the lowest: from $342 one-way, against $584 in December.

Are there direct flights from San Francisco to Seoul?

Yes. Recent fares include nonstop flights with United Airlines, Air Premia and Asiana Airlines.

How long is the flight from San Francisco to Seoul?

A nonstop flight takes about 12h 35m. The distance is 5,645 mi.

Which day of the week is cheapest to fly?

In the fares we have, Sunday departures are the cheapest, with a typical lowest fare of $357. Friday is the priciest at about $405.

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