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Cheap flights from San Francisco to Seoul

The cheapest round trip from San Francisco to Seoul that travelers found recently is $648 with a carry-on: a $648 fare on YP, which usually includes a carry-on. It leaves Fri, Feb 19 and comes back Sun, Feb 28.

Live prices for Fri, Feb 19 to Sun, Feb 28

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$648Cheapest round trip, carry-on included (est.)
$785Typical round trip found recently
FebruaryCheapest month in the next few, from $648
43%Of these fares are nonstop

Cheapest trips travelers found recently

LeaveReturnAirlineAirportsStopsFareCarry-on (est.)TotalLive prices
Fri, Feb 19Sun, Feb 28YPSFO → ICNNonstop$648Included$648Live price
Sun, Nov 15Sun, Nov 22UnitedSFO → ICNNonstop$663Included$663Live price
Fri, Mar 12Mon, Mar 22YPSFO → ICNNonstop$725Included$725Live price
Tue, Oct 20Wed, Oct 28Cathay PacificSFO → ICN1 stop$785Included$785Live price
Thu, Dec 24Sun, Jan 3American AirlinesSFO → ICN2 stops$1,917Included$1,917Live price
Thu, Dec 24Mon, Jan 4FrontierSFO → ICN2 stops$1,815+$110$1,925Live price
Sat, Jan 2Sun, Jan 3Alaska AirlinesSFO → ICN3 stops$2,295Included$2,295Live price

Round-trip prices per person, from real fares travelers found in the last few days. Carry-on fees are our estimate for each airline, both ways. Prices change fast: check the live price before you book.

Cheapest month to fly

MonthCheapest tripFromLive prices
October 2026Tue, Oct 20 to Wed, Oct 28, 8 nights$785Live price
November 2026Sun, Nov 15 to Sun, Nov 22, 7 nights$663Live price
December 2026Thu, Dec 24 to Sun, Jan 3, 10 nights$1,917Live price
January 2027Sat, Jan 2 to Sun, Jan 3, 1 night$2,295Live price
February 2027Fri, Feb 19 to Sun, Feb 28, 9 nights$648Live price
March 2027Fri, Mar 12 to Mon, Mar 22, 10 nights$725Live price

Bag fees on this route

What the airlines flying San Francisco to Seoul usually charge for one bag each way. Budget airlines often sell the cheapest fares and charge the most for bags, so compare the total, not the fare.

AirlineCarry-on, each wayChecked bag, each way
Alaska AirlinesIncludedIncluded
American AirlinesIncludedIncluded
Cathay PacificIncludedIncluded
Frontier$55$50
UnitedIncludedIncluded
YPIncludedIncluded

Our estimates: fees depend on the fare type and when you pay. Check the airline's own price when you book.

How these prices work

These are real round-trip fares that travelers found on Aviasales recently, not a live search, so they can change or sell out. Dipt adds an estimate of each airline's carry-on fee, so a cheap fare with expensive bags doesn't look cheaper than it is. "Live price" opens Dipt's live flight search for those dates, where you book with the airline or travel site you pick. Dipt may earn a commission when you book, at no extra cost to you (how Dipt makes money).

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