฿15,155 Cheap Flights from San Francisco (SFO) to Seoul (ICN)

View ฿15,155 flight on Sun, 26 Oct 2025Opens in a new window

Popular airlines from San Francisco International Airport (SFO) to Incheon Intl. Airport (ICN)

  • Plan, book, fly with confidence

  • trending down icon

    Be in the know

    Get alerts if flight prices drop or rise*
  • bex rewards loyalty icon

    Book smarter

    Save up to 40% on select hotels after you book a flight*
  • payments icon

    Earn twice

    Earn your airline miles on top of our rewards
    Sign in

Cheap Flights from San Francisco (SFO) to Seoul (ICN)

Prices were available within the past 7 days and start at ฿15,155 for one-way flights and ฿21,510 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

United
Fri, 7 Nov - Wed, 19 Nov
SFO
San Francisco
ICN
Seoul
฿21,510 Return, found 6 days ago
฿21,510
Return
found 6 days ago
Select United flight, departing Fri, 7 Nov from San Francisco to Seoul, returning Wed, 19 Nov, priced at ฿21,510 found 6 days ago
United
Tue, 28 Oct - Tue, 4 Nov
SFO
San Francisco
ICN
Seoul
฿21,585 Return, just found
฿21,585
Return
just found
Select United flight, departing Tue, 28 Oct from San Francisco to Seoul, returning Tue, 4 Nov, priced at ฿21,585 just found
Cathay Pacific
Tue, 28 Oct - Tue, 4 Nov
SFO
San Francisco
ICN
Seoul
฿24,770 Return, just found
฿24,770
Return
just found
Select Cathay Pacific flight, departing Tue, 28 Oct from San Francisco to Seoul, returning Tue, 4 Nov, priced at ฿24,770 just found
Asiana Airlines
Sat, 4 Oct - Mon, 6 Oct
SFO
San Francisco
ICN
Seoul
฿26,535 Return, just found
฿26,535
Return
just found
Select Asiana Airlines flight, departing Sat, 4 Oct from San Francisco to Seoul, returning Mon, 6 Oct, priced at ฿26,535 just found
Cathay Pacific
Tue, 28 Oct - Tue, 4 Nov
SFO
San Francisco
ICN
Seoul
฿26,855 Return, just found
฿26,855
Return
just found
Select Cathay Pacific flight, departing Tue, 28 Oct from San Francisco to Seoul, returning Tue, 4 Nov, priced at ฿26,855 just found
Delta
Fri, 7 Nov - Wed, 19 Nov
SFO
San Francisco
ICN
Seoul
฿28,040 Return, found 6 days ago
฿28,040
Return
found 6 days ago
Select Delta flight, departing Fri, 7 Nov from San Francisco to Seoul, returning Wed, 19 Nov, priced at ฿28,040 found 6 days ago
Korean Air
Fri, 7 Nov - Wed, 19 Nov
SFO
San Francisco
ICN
Seoul
฿28,070 Return, found 6 days ago
฿28,070
Return
found 6 days ago
Select Korean Air flight, departing Fri, 7 Nov from San Francisco to Seoul, returning Wed, 19 Nov, priced at ฿28,070 found 6 days ago
United
Sat, 4 Oct - Mon, 6 Oct
SFO
San Francisco
ICN
Seoul
฿28,105 Return, just found
฿28,105
Return
just found
Select United flight, departing Sat, 4 Oct from San Francisco to Seoul, returning Mon, 6 Oct, priced at ฿28,105 just found
Delta
Tue, 28 Oct - Tue, 4 Nov
SFO
San Francisco
ICN
Seoul
฿28,135 Return, just found
฿28,135
Return
just found
Select Delta flight, departing Tue, 28 Oct from San Francisco to Seoul, returning Tue, 4 Nov, priced at ฿28,135 just found
Korean Air
Tue, 28 Oct - Tue, 4 Nov
SFO
San Francisco
ICN
Seoul
฿28,165 Return, just found
฿28,165
Return
just found
Select Korean Air flight, departing Tue, 28 Oct from San Francisco to Seoul, returning Tue, 4 Nov, priced at ฿28,165 just found

Find the cheapest month to fly from San Francisco (SFO) to Seoul (ICN)

May is typically the cheapest month to fly

From ฿20,406 - ฿38,935 per traveller.

Graph displaying average flight prices per month

Flight from San Francisco to Seoul route information
Origin airport
San Francisco Intl.
Destination airport
Incheon Intl.
Return price
฿21,510
Distance
9032 km
Average flight time
28 hours 29 mins

Perfect flights from San Francisco to Seoul

Embark on an unforgettable journey without breaking the bank with Expedia's incredible deals on cheap flights from San Francisco to Seoul. Whether you're aching for a romantic escape with your partner, craving an adventurous solo expedition, or yearning to immerse yourself in the local history and culture, we've got you covered.
 
Picture yourself strolling through the streets of , surrounded by breathtaking architecture and absorbing the vibrant atmosphere of this captivating city. Indulge in the mouth-watering local specialties, from tantalizing street food to exquisite fine dining. With Expedia, you can experience all of this and more, without sacrificing your budget.
 
Our flexible San Francisco Intl. to Incheon Intl. ticket options cater to your travel preferences, with incredible one-way fares from ฿15,155 and roundtrip prices from ฿21,510. Whether you're planning a short city break or a longer adventure, our dynamic pricing ensures that you find the best deals for your journey.
 
But the magic doesn't stop there. Expedia offers a range of partner services to enhance your trip. Rent a car at Incheon Intl. and explore and its surrounding areas at your own pace. Discover hidden gems off the beaten path, and create unforgettable memories. We also provide a handpicked selection of accommodations, from charming bed and breakfasts to luxury hotels, ensuring that you have a comfortable and memorable stay.
 
Planning your next great adventure is a breeze with Expedia. Our user-friendly platform, unbeatable prices, and round-the-clock customer support are designed to make your travel experience seamless and stress-free. So, why wait? Book your to travel arrangements today and embark on the journey of a lifetime in Seoul.

Frequently asked questions

How much is a flight from SFO to Incheon Airport?
Based on airfares available within the last 7 days on Expedia for flights departing within the next year, round-trip flights between San Francisco Intl. Airport (SFO) and Incheon Intl. Airport (ICN) start from ฿21,510. Book now to get the best price for your journey. Prices and availability are subject to change. Additional terms apply.
Do I need to pay a cancellation fee if I cancel my flight from San Francisco Intl. Airport (SFO) to ICN?
Every airline has its own terms and conditions. If you decide to cancel your trip, visit our Customer Service Portal.
How do I find cheap flights from SFO to ICN that have flexible change policies?
Many airlines offer the option to reschedule your flight without a change fee. All you pay is the difference between the original flight and the new flight. When you're searching for San Francisco Airport to ICN flights, you'll see a "no change fees" filter for you to select.
How far is the flight from San Francisco Intl. Airport (SFO) to Incheon Airport?
San Francisco to South Korea is around 9,100 kilometres, so be prepared to spend a while in the air. Don't forget to pack all the essentials, from your eye mask to your earphones. Throw in a few snacks to munch on throughout your journey too.
Which airlines fly direct from San Francisco Airport to Seoul–Incheon Intl. Airport?
United Airlines (UA) is one of the preferred choices for travellers jetting between SFO and Incheon Airport. Take your pick of the 47 flights it operates on this route each month. For more options, check out the fares from Korean Air (KE). This airline offers 30 monthly flights between these airports.
Are San Francisco Intl. Airport (SFO) to Incheon Intl. Airport (ICN) flight tickets cheaper when they're purchased at the last minute?
Flight prices fluctuate, so it's no sure thing. While last-minute deals between San Francisco Intl. Airport (SFO) and Seoul–Incheon Intl. Airport are of course possible, it also makes sense to keep a close eye on prices well before you fly. In fact, some airlines announce their prices up to a year ahead of the departure date. Expedia is constantly updating the best airfare bargains around, so keep checking back and be ready to pounce when the fares dip.

Explore a world of travel with Expedia

Seoul Airports

Seoul

*Available to Expedia members.