$441+ Cheap flights from Incheon Intl (ICN) to San Francisco (SFO)
This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 9/2. Fares are subject to change and may not be available on all flights or dates of travel.
ICN — SFO
Jun 21 — Jun 281
Round-trip
1 adult, Economy
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Find cheap flights from Incheon Intl to San Francisco with Cheapflights
1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.3. Compare prices and book
Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheapflights Tip: The best prices from Incheon Intl to San Francisco are usually found in February or December, booked 66 days in advance, depart on a Tuesday or Wednesday and return on a Monday
Cheap flight deals from Incheon Intl to San Francisco
Cheapest
Best
Last-minute
One-way
Cheapest flights from Incheon Intl to San FranciscoExplore the most affordable flight options available from Incheon Intl to San Francisco. Find the lowest fares from popular airlines and budget airlines, with prices last updated on May 22, 2026.
Explore the most affordable flight options available from Incheon Intl to San Francisco. Find the lowest fares from popular airlines and budget airlines, with prices last updated on May 22, 2026.
This Super.com deal was found by Cheapflights users on 5/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/276:00 pm
ICN
- SFO
Nonstop11h 00m
AIR PREMIA
Wed 7/83:30 pm
SFO
- ICN
Nonstop12h 40m
AIR PREMIA
Deal found 5/17![AIR PREMIA logo]()
$798
This United Airlines deal was found by Cheapflights users on 5/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/2211:30 am
ICN
- SFO
Nonstop11h 00m
United Airlines
Sun 6/2811:55 pm
SFO
- ICN
Nonstop12h 25m
United Airlines
Deal found 5/17![United Airlines logo]()
$805
This Justfly.com deal was found by Cheapflights users on 5/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/66:00 pm
ICN
- SFO
Nonstop11h 00m
AIR PREMIA
Fri 7/173:30 pm
SFO
- ICN
Nonstop12h 40m
AIR PREMIA
Deal found 5/17![AIR PREMIA logo]()
$820
This Trip.com deal was found by Cheapflights users on 5/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/2712:55 pm
ICN
- SFO
1 stop17h 50m
Multiple Airlines
Wed 7/83:30 pm
SFO
- ICN
Nonstop12h 40m
Multiple Airlines
Deal found 5/17![Multiple Airlines logo]()
$836
This Kiwi.com deal was found by Cheapflights users on 5/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/2712:55 pm
ICN
- SFO
1 stop17h 50m
Multiple Airlines
Fri 7/103:30 pm
SFO
- ICN
Nonstop12h 40m
Multiple Airlines
Deal found 5/17![Multiple Airlines logo]()
$851
This iWofly deal was found by Cheapflights users on 5/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure iWofly is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/246:00 pm
ICN
- SFO
Nonstop11h 00m
AIR PREMIA
Sun 6/283:30 pm
SFO
- ICN
Nonstop12h 40m
AIR PREMIA
Deal found 5/22![AIR PREMIA logo]()
$852
This Alaska Airlines deal was found by Cheapflights users on 5/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/247:35 pm
ICN
- SFO
1 stop15h 13m
Alaska Airlines
Sat 8/297:00 am
SFO
- ICN
1 stop18h 30m
Alaska Airlines
Deal found 5/17![Alaska Airlines logo]()
$853
This KAYAK deal was found by Cheapflights users on 5/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/214:50 pm
ICN
- SFO
Nonstop10h 50m
Asiana Airlines
Fri 11/611:45 pm
SFO
- ICN
Nonstop12h 55m
Asiana Airlines
Deal found 5/18![Asiana Airlines logo]()
$855
This KAYAK deal was found by Cheapflights users on 5/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 6/2611:30 am
ICN
- SFO
Nonstop11h 00m
Asiana Airlines
Sun 9/1311:59 pm
SFO
- ICN
1 stop23h 21m
Asiana Airlines
Deal found 5/17![Asiana Airlines logo]()
$859
This Kiwi.com deal was found by Cheapflights users on 5/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/2612:55 pm
ICN
- SFO
1 stop17h 50m
Multiple Airlines
Mon 7/63:30 pm
SFO
- ICN
Nonstop12h 40m
Multiple Airlines
Deal found 5/17![Multiple Airlines logo]()
$860
This Alaska Airlines deal was found by Cheapflights users on 5/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 6/77:35 pm
ICN
- SFO
1 stop31h 25m
Alaska Airlines
Mon 8/319:03 am
SFO
- ICN
1 stop16h 27m
Alaska Airlines
Deal found 5/17![Alaska Airlines logo]()
$866
Best flights from Incheon Intl to San FranciscoDiscover carefully curated flight deals from Incheon Intl to San Francisco that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated May 22, 2026.
Discover carefully curated flight deals from Incheon Intl to San Francisco that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated May 22, 2026.
This United Airlines deal was found by Cheapflights users on 5/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 6/2611:30 am
ICN
- SFO
Nonstop11h 00m
United Airlines
Sun 9/1311:45 pm
SFO
- ICN
Nonstop12h 35m
United Airlines
Deal found 5/17![United Airlines logo]()
$805
This Alaska Airlines deal was found by Cheapflights users on 5/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/247:35 pm
ICN
- SFO
1 stop17h 13m
Alaska Airlines
Thu 7/169:00 am
SFO
- ICN
1 stop16h 30m
Alaska Airlines
Deal found 5/22![Alaska Airlines logo]()
$1,189
This Philippine Airlines deal was found by Cheapflights users on 5/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Philippine Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/198:30 pm
ICN
- SFO
1 stop40h 40m
Philippine Airlines
Fri 9/2512:30 am
SFO
- ICN
1 stop26h 45m
Philippine Airlines
Deal found 5/20![Philippine Airlines logo]()
$1,201
This Delta deal was found by Cheapflights users on 5/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 6/217:00 pm
ICN
- SFO
1 stop21h 06m
Delta
Tue 7/141:10 pm
SFO
- ICN
Nonstop12h 10m
Delta
Deal found 5/22![Delta logo]()
$1,345
This United Airlines deal was found by Cheapflights users on 5/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/2411:30 am
ICN
- SFO
Nonstop11h 00m
United Airlines
Sat 7/1810:40 am
SFO
- ICN
Nonstop12h 20m
United Airlines
Deal found 5/22![United Airlines logo]()
$998
This United Airlines deal was found by Cheapflights users on 5/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/2211:30 am
ICN
- SFO
Nonstop11h 00m
United Airlines
Thu 7/1610:40 am
SFO
- ICN
Nonstop12h 20m
United Airlines
Deal found 5/22![United Airlines logo]()
$1,094
This Delta deal was found by Cheapflights users on 5/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/84:00 pm
ICN
- SFO
Nonstop10h 40m
Delta
Fri 6/127:00 am
SFO
- ICN
1 stop18h 50m
Delta
Deal found 5/22![Delta logo]()
$1,356
This United Airlines deal was found by Cheapflights users on 5/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/154:50 pm
ICN
- SFO
Nonstop11h 10m
United Airlines
Fri 7/2410:40 am
SFO
- ICN
Nonstop12h 20m
United Airlines
Deal found 5/21![United Airlines logo]()
$1,149
This Delta deal was found by Cheapflights users on 5/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/147:00 pm
ICN
- SFO
1 stop30h 38m
Delta
Tue 7/211:10 pm
SFO
- ICN
Nonstop12h 10m
Delta
Deal found 5/21![Delta logo]()
$1,363
This United Airlines deal was found by Cheapflights users on 5/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 6/2611:30 am
ICN
- SFO
Nonstop11h 00m
United Airlines
Thu 7/910:40 am
SFO
- ICN
Nonstop12h 20m
United Airlines
Deal found 5/20![United Airlines logo]()
$1,168
This United Airlines deal was found by Cheapflights users on 5/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/234:50 pm
ICN
- SFO
Nonstop11h 10m
United Airlines
Fri 7/1010:40 am
SFO
- ICN
Nonstop12h 20m
United Airlines
Deal found 5/20![United Airlines logo]()
$1,168
This United Airlines deal was found by Cheapflights users on 5/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/84:50 pm
ICN
- SFO
Nonstop11h 10m
United Airlines
Tue 9/111:55 pm
SFO
- ICN
Nonstop12h 25m
United Airlines
Deal found 5/20![United Airlines logo]()
$1,324
Last-minute flights from Incheon Intl to San FranciscoDiscover last-minute flight deals from Incheon Intl to San Francisco. Data last updated May 22, 2026 and is based on user searches.
Discover last-minute flight deals from Incheon Intl to San Francisco. Data last updated May 22, 2026 and is based on user searches.
This Kiwi.com deal was found by Cheapflights users on 5/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/2612:55 pm
ICN
- SFO
1 stop17h 50m
Multiple Airlines
Mon 7/63:30 pm
SFO
- ICN
Nonstop12h 40m
Multiple Airlines
Deal found 5/17![Multiple Airlines logo]()
$860
This Super.com deal was found by Cheapflights users on 5/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/276:00 pm
ICN
- SFO
Nonstop11h 00m
AIR PREMIA
Wed 7/83:30 pm
SFO
- ICN
Nonstop12h 40m
AIR PREMIA
Deal found 5/17![AIR PREMIA logo]()
$798
This Trip.com deal was found by Cheapflights users on 5/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/2712:55 pm
ICN
- SFO
1 stop17h 50m
Multiple Airlines
Wed 7/83:30 pm
SFO
- ICN
Nonstop12h 40m
Multiple Airlines
Deal found 5/17![Multiple Airlines logo]()
$836
This Kiwi.com deal was found by Cheapflights users on 5/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/2712:55 pm
ICN
- SFO
1 stop17h 50m
Multiple Airlines
Fri 7/103:30 pm
SFO
- ICN
Nonstop12h 40m
Multiple Airlines
Deal found 5/17![Multiple Airlines logo]()
$851
This Kiwi.com deal was found by Cheapflights users on 5/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 6/48:40 pm
ICN
- SFO
2 stops31h 20m
Multiple Airlines
Mon 8/313:30 pm
SFO
- ICN
Nonstop12h 40m
Multiple Airlines
Deal found 5/20![Multiple Airlines logo]()
$885
This Alaska Airlines deal was found by Cheapflights users on 5/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 6/77:35 pm
ICN
- SFO
1 stop29h 43m
Alaska Airlines
Sat 8/296:03 am
SFO
- ICN
1 stop19h 27m
Alaska Airlines
Deal found 5/17![Alaska Airlines logo]()
$866
This United Airlines deal was found by Cheapflights users on 5/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/2211:30 am
ICN
- SFO
Nonstop11h 00m
United Airlines
Sat 8/2911:55 pm
SFO
- ICN
Nonstop12h 25m
United Airlines
Deal found 5/17![United Airlines logo]()
$805
This iWofly deal was found by Cheapflights users on 5/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure iWofly is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/246:00 pm
ICN
- SFO
Nonstop11h 00m
AIR PREMIA
Sun 6/283:30 pm
SFO
- ICN
Nonstop12h 40m
AIR PREMIA
Deal found 5/22![AIR PREMIA logo]()
$852
This Alaska Airlines deal was found by Cheapflights users on 5/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/247:35 pm
ICN
- SFO
1 stop17h 13m
Alaska Airlines
Thu 9/37:00 am
SFO
- ICN
1 stop18h 30m
Alaska Airlines
Deal found 5/17![Alaska Airlines logo]()
$853
This iWofly deal was found by Cheapflights users on 5/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure iWofly is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 6/266:00 pm
ICN
- SFO
Nonstop11h 00m
AIR PREMIA
Mon 6/293:30 pm
SFO
- ICN
Nonstop12h 40m
AIR PREMIA
Deal found 5/17![AIR PREMIA logo]()
$842
This KAYAK deal was found by Cheapflights users on 5/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 6/2611:30 am
ICN
- SFO
Nonstop11h 00m
Asiana Airlines
Sun 9/1311:59 pm
SFO
- ICN
1 stop23h 21m
Asiana Airlines
Deal found 5/17![Asiana Airlines logo]()
$859
One-way flights from Incheon Intl to San FranciscoSearch for one-way flight options from Incheon Intl to San Francisco. Find affordable one-way fares based on user searches. Data last updated May 22, 2026.
Search for one-way flight options from Incheon Intl to San Francisco. Find affordable one-way fares based on user searches. Data last updated May 22, 2026.
This CheapOair deal was found by Cheapflights users on 5/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/212:55 pm
ICN
- SFO
1 stop18h 20m
ZIPAIR
Deal found 5/22![ZIPAIR logo]()
$441
This Kiwi.com deal was found by Cheapflights users on 5/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/2912:55 pm
ICN
- SFO
1 stop17h 50m
ZIPAIR
Deal found 5/18![ZIPAIR logo]()
$446
This Kiwi.com deal was found by Cheapflights users on 5/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/273:15 pm
ICN
- SFO
2 stops39h 30m
Multiple Airlines
Deal found 5/21![Multiple Airlines logo]()
$454
This iWofly deal was found by Cheapflights users on 5/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure iWofly is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/112:55 pm
ICN
- SFO
1 stop18h 20m
ZIPAIR
Deal found 5/19![ZIPAIR logo]()
$456
This ZIPAIR deal was found by Cheapflights users on 5/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure ZIPAIR is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/2712:55 pm
ICN
- SFO
1 stop18h 20m
ZIPAIR
Deal found 5/21![ZIPAIR logo]()
$459
This Agoda.com deal was found by Cheapflights users on 5/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Agoda.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/1412:55 pm
ICN
- SFO
1 stop17h 50m
ZIPAIR
Deal found 5/22![ZIPAIR logo]()
$461
This Super.com deal was found by Cheapflights users on 5/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/3112:55 pm
ICN
- SFO
1 stop18h 20m
ZIPAIR
Deal found 5/19![ZIPAIR logo]()
$471
Find flight deals from Incheon Intl to San Francisco
Discover tips and strategies to find the most affordable flight options for your journey from Incheon Intl (ICN) to San Francisco (SFO). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated May 22, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $805 (United Airlines) |
One-way from | $441 (CheapOair) |
Popular in | August |
Cheapest in | February |
Average price | $749 |
Good round-trip deal | $1,050 or less |
Good one-way deal | $542 or less |
Cheapflights Fare Finder
Customize your flight search to find flights from Incheon Intl to San Francisco that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated May 22, 2026.
Use the filters below to find and compare flights from Incheon Intl Airport to San Francisco that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
IncheonSan Francisco
ICN - SFO
ICNSFO
Incheon Intl
Fri 6/26
11:30 am-6:30 am
Nonstop11h 00m
San Francisco
Sun 9/13
11:45 pm-4:20 am
Nonstop12h 35m
$805
Quickest round-trip
IncheonSan Francisco
ICN - SFO
ICNSFO
Incheon Intl
Wed 6/24
11:30 am-6:30 am
Nonstop11h 00m
San Francisco
Sat 7/18
10:40 am-3:00 pm
Nonstop12h 20m
$998
IncheonSan Francisco
ICN - SFO
ICNSFO
Incheon Intl
Mon 6/22
11:30 am-6:30 am
Nonstop11h 00m
San Francisco
Thu 7/16
10:40 am-3:00 pm
Nonstop12h 20m
$1,094
IncheonSan Francisco
ICN - SFO
ICNSFO
Incheon Intl
Mon 6/15
4:50 pm-12:00 pm
Nonstop11h 10m
San Francisco
Fri 7/24
10:40 am-3:00 pm
Nonstop12h 20m
$1,149
IncheonSan Francisco
ICN - SFO
ICNSFO
Incheon Intl
Fri 6/26
11:30 am-6:30 am
Nonstop11h 00m
San Francisco
Thu 7/9
10:40 am-3:00 pm
Nonstop12h 20m
$1,168
IncheonSan Francisco
ICN - SFO
ICNSFO
Incheon Intl
Tue 6/23
4:50 pm-12:00 pm
Nonstop11h 10m
San Francisco
Fri 7/10
10:40 am-3:00 pm
Nonstop12h 20m
$1,168
IncheonSan Francisco
ICN - SFO
ICNSFO
Incheon Intl
Wed 6/24
7:35 pm-8:48 pm
1 stop17h 13m
San Francisco
Thu 7/16
9:00 am-5:30 pm
1 stop16h 30m
$1,189
IncheonSan Francisco
ICN - SFO
ICNSFO
Incheon Intl
Sat 9/19
8:30 pm-9:10 pm
1 stop40h 40m
San Francisco
Fri 9/25
12:30 am-7:15 pm
1 stop26h 45m
$1,201
IncheonSan Francisco
ICN - SFO
ICNSFO
Incheon Intl
Mon 6/8
4:50 pm-12:00 pm
Nonstop11h 10m
San Francisco
Tue 9/1
11:55 pm-4:20 am
Nonstop12h 25m
$1,324
IncheonSan Francisco
ICN - SFO
ICNSFO
Incheon Intl
Sun 6/21
7:00 pm-12:06 am
1 stop21h 06m
San Francisco
Tue 7/14
1:10 pm-5:20 pm
Nonstop12h 10m
$1,345
Showing 1-10 of 17 resultsSorted by cheapest first
Compare providers for flights from Incheon Intl to San Francisco
Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Incheon Intl to San Francisco in May.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy2 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy- | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*2 stars | |
| Price Accuracy2 stars | Trust Score*1 star | |
| Price Accuracy3 stars | Trust Score*3 stars |
- Most accurate provider: When it comes to deals on Incheon Intl Airport-San Francisco flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Incheon Intl Airport-San Francisco flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Incheon Intl Airport-San Francisco flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on Incheon Intl Airport-San Francisco flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Incheon Intl Airport-San Francisco flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.
Best time to book a flight from Incheon Intl to San Francisco
Have a flexible travel schedule? Discover the best time to fly to San Francisco from Incheon Intl with our price prediction graph.
ICN-SFO
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.
Cheapflights Insights
Everything you need to know about your flight from Incheon Intl Airport to San Francisco
Prices
Airlines
Delays
How far ahead should I book a flight from Incheon Intl Airport to San Francisco?
The price you pay for your flight from Incheon Intl Airport to San Francisco may vary depending on when you book. For the best chance of a lower fare, look to book 65 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.
What is the cheapest month to book a flight from Incheon Intl Airport to San Francisco?
Currently, February is the cheapest month in which you can book a flight from Incheon Intl Airport to San Francisco (average of $539). Flying from Incheon Intl Airport to San Francisco in August is currently the most expensive (average of $866). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.
What is the cheapest time of day to fly from ICN to SFO?
Find hourly flight availability from Incheon Intl to San Francisco. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated May 22, 2026.
It’s optimal to fly from Incheon Intl Airport to San Francisco at noon. By choosing this option you can save up to 35% on the cost of your flight, compared to a flight in the morning.
What is the cheapest day to fly from Incheon Intl Airport to San Francisco?
Use this chart to determine the cheapest time to fly round-trip from Incheon Intl to San Francisco. Price data was last updated on May 16, 2026.
Travelers seeking maximum savings on their Incheon Intl Airport to San Francisco flight should consider departing on Saturday at noon when fares are most often at their lowest. Monday at noon flights should be avoided if possible as fares are typically the most expensive at this time.
How often are flights from Incheon to San Francisco delayed?
About 22% of weekly flights between Incheon and San Francisco have experienced delays in the past year, with the average delay time being 141 minutes.
What is the most punctual flight time for Incheon to San Francisco flights?
Historically, flights departing at night are less likely to be delayed, whereas flights leaving in the evening tend to experience delays more often.
What day of the week experiences the fewest flight delays on this route?
Tuesday tends to have the lowest number of delays on this route, whereas Thursday has historically faced a higher average of delays compared to other days of the week.
Which airline has the best punctuality record on Incheon to San Francisco flights?
Over the last year, United Airlines have had the lowest number of delays on this route, with just 14% of flights being delayed.
The best insider tips for Incheon Intl Airport to San Francisco flights
AI-powered summary based on content written by travel experts. AI can make mistakes.
Cheapflights partnered with top experts to bring you the best recommendations for your Incheon Intl Airport to San Francisco trip
Our travel experts
Reviews of airlines servicing San Francisco
Get insights into the airlines that provide service to San Francisco. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to San Francisco. Reviews last updated May 22, 2026.
See what other customers who have flown with Korean Air,Asiana Airlines, andAIR PREMIA from Incheon Intl Airport to San Francisco have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Boarding
8.5
Crew
8.7
Food
8.1
Comfort
8.3
Entertainment
8.2
Overall
8.4
Reviews
1 / 20
10.0
ExcellentJacqueline,Aug 2025
ICN - SEA
Boarding
8.5
Crew
8.7
Food
8.1
Comfort
8.3
Entertainment
8.2
Overall
8.4
Reviews
1 / 20
10.0
ExcellentJacqueline,Aug 2025
ICN - SEA
Boarding
8.5
Crew
8.7
Food
8.1
Comfort
8.3
Entertainment
8.2
Overall
8.4
Reviews
1 / 20
10.0
ExcellentJacqueline,Aug 2025
ICN - SEA
Boarding
8.5
Crew
8.7
Food
8.1
Comfort
8.3
Entertainment
8.2
Overall
8.4
Reviews
1 / 20
10.0
ExcellentJacqueline,Aug 2025
ICN - SEA
Boarding
8.5
Crew
8.7
Food
8.1
Comfort
8.3
Entertainment
8.2
Overall
8.4
Reviews
1 / 20
10.0
ExcellentJacqueline,Aug 2025
ICN - SEA
Boarding
8.5
Crew
8.7
Food
8.1
Comfort
8.3
Entertainment
8.2
Overall
8.4
Reviews
1 / 20
10.0
ExcellentJacqueline,Aug 2025
ICN - SEA
Related info for your journey
Find useful and relevant information for your journey from Incheon Intl to San Francisco. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
Traveling to a place near San Francisco?
Book flights to San Francisco if you plan to visit one of these locationsSouth San Francisco
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Incheon Intl and San Francisco flights
Browse other Incheon Intl and San Francisco flight options. Last updated on May 22, 2026.
Other flights from Incheon Intl
Browse through other flights departing from Incheon Intl. Flights are based on user searches made on Cheapflights and were last updated on May 22, 2026.
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Top 5 airlines flying from Incheon Intl to San Francisco
Discover the top 5 airlines that operate flights from Incheon Intl to San Francisco. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated May 22, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$282 | Average$388 | FlexibilityNo cancel fee | On-time67% | |
| Cheapest$404 | Average$498 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$448 | Average$658 | FlexibilityNo cancel fee | On-time81% | |
| Cheapest$464 | Average$628 | FlexibilityNo cancel fee | On-time76% | |
| Cheapest$480 | Average$684 | FlexibilityNo cancel fee | On-timeN/A |