Perimeter Aviation Ltd.
Mo, We, Fr, and Sa
starting at $380
United Airlines
Every day
starting at $411
Korean Air
Every day
starting at $586
Flaut.Travel was designed and developed by a team dedicated to making the process of searching, comparing and booking airline tickets as easy and convenient as possible. Our service helps travelers to find and buy the cheapest flights from Seoul to San Francisco. We have connected more than 40 airlines and airline ticketing agencies to help you find the most suitable and affordable flight option.
In different months, ticket prices from Seoul to San Francisco vary: minimum — $446 (May 2027), maximum — $514 (December 2026). Typically, the flight costs $470–$929.
A non-stop flight is the most convenient and comfortable way to fly from Seoul to San Francisco, despite the fact that sometimes flights with transfers can cost significantly less.
Almost every airline on the Seoul — San Francisco route flies daily, with just one exception: United Airlines and Korean Air fly every day. Perimeter Aviation Ltd. only flies on Monday, Wednesday, Friday, and Saturday.
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Answers to questions about the route that travelers are most interested in.
We keep tight track on airlines' pre-holidays sales and other special offers occurences all the time to let you save maximum amount of funds while traveling to your family or just going out on vacation.
On the Seoul — San Francisco route, ticket prices are stable. Whichever month you choose, the difference will be minimal.
There is a slight difference: it's a bit cheaper in January 2027–May 2027 (averaging $456) and slightly more in December 2026–January 2027 ($491). But overall, the difference is small.
On this route, you don't need to target specific months — prices are stable. The difference between the cheapest and most expensive period is only 7%. Book whenever it's convenient.
Monthly price variation is just 5%. Ticket costs on this route are among the most predictable.
Perimeter Aviation Ltd.
Mo, We, Fr, and Sa
starting at $380
United Airlines
Every day
starting at $411
Korean Air
Every day
starting at $586
All airports
Seoul — San Francisco
12/07/2026
Departure
Direct flight
YP111
starting at $362
Seoul — San Francisco
01/29/2027
Departure
Direct flight
UA806
starting at $457
Seoul — San Francisco
11/15/2026
Departure
Direct flight
UA892
starting at $454
Seoul — San Francisco
11/04/2026
Departure
Direct flight
UA892
starting at $481
Seoul — San Francisco
12/01/2026
Departure
Direct flight
UA892
starting at $587
Seoul — San Francisco
01/03/2027
Departure
Direct flight
YP111
starting at $1,668
Seoul — San Francisco
01/27/2027
Departure
Direct flight
UA806
starting at $483
Seoul — San Francisco
12/13/2026
Departure
Direct flight
UA806
starting at $491
Seoul — San Francisco
11/20/2026
Departure
Direct flight
KE23
starting at $714
Seoul — San Francisco
11/11/2026
Departure
Direct flight
KE23
starting at $714
starting at $343
starting at $447
starting at $690
starting at $530
starting at $437
starting at $455
starting at $522
starting at $656
starting at $660
The route Seoul — San Francisco is served by many carriers — 9 in total, including Perimeter Aviation Ltd., United Airlines, Korean Air, Asiana Airlines, ZIPAIR Tokyo, Air Canada, Alaska Airlines, Hong Kong Express Airways, and T'way Air. This gives passengers wide opportunities: from finding the lowest fare (from $343) to selecting flights by schedule or service class. Our service aggregates data from multiple booking systems so you can compare offers in one place. This saves time and money: no need to check dozens of sites — just pick the right option and book online.
The cheapest flight ticket from Seoul to San Francisco according to data for the last 48 hours costs $437
Often the best time to buy tickets from Seoul to San Francisco is 2 months before departure.
Based on statistics over the past years, the lowest prices for flights from Seoul to San Francisco can be found flying in these months: May, October, November.
The fastest flights from Seoul to San Francisco start from 10 hours 30 minutes in the air.
The following airlines operate direct flights on the route Seoul — San Francisco: Perimeter Aviation Ltd., United Airlines, Korean Air
The cheapest one-way flight from Seoul to San Francisco departs on 01/29/2027, is operated by ZIPAIR Tokyo and costs $437
The cheapest roundtrip flight from Seoul to San Francisco departs on 10/26/2026, is operated by United Airlines and costs $837
Fastest flight from Seoul to San Francisco takes 10h 30m
There are direct flights on this route 7 days a week: Su, Mo, Tu, We, Th, Fr, and Sa
The distance between Seoul and San Francisco is 9028km (5597 miles). The average flight duration is 11h. There are 54 direct flights from Seoul to San Francisco. The time difference between Seoul and San Francisco is 17h. Flights from Seoul begin at 11:30 AM. The latest flight from Seoul departs at 9:00 PM
We couldn't find any special offers for flights from Seoul to San Francisco
