$391+ 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 9/27. Fares are subject to change and may not be available on all flights or dates of travel.
ICN — SFO
May 16 — May 231
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
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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 Wednesday or Tuesday 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 April 16, 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 April 16, 2026.
This WhyPayMore deal was found by Cheapflights users on 4/14. 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 WhyPayMore is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/265:55 pm
ICN
- SFO
1 stop32h 40m
Air Canada
Mon 1/114:35 pm
SFO
- ICN
1 stop31h 35m
Air Canada
Deal found 4/14![Air Canada logo]()
$663
This lol.travel deal was found by Cheapflights users on 4/14. 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 lol.travel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/135:45 pm
ICN
- SFO
2 stops34h 28m
Air Canada
Sun 5/176:30 am
SFO
- ICN
1 stop17h 35m
Air Canada
Deal found 4/14![Air Canada logo]()
$667
This WhyPayMore deal was found by Cheapflights users on 4/16. 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 WhyPayMore 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
Multiple Airlines
Tue 8/2512:30 am
SFO
- ICN
1 stop37h 30m
Multiple Airlines
Deal found 4/16![Multiple Airlines logo]()
$681
This Air Canada deal was found by Cheapflights users on 4/14. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/15:45 pm
ICN
- SFO
2 stops34h 22m
Air Canada
Thu 12/317:30 am
SFO
- ICN
1 stop16h 40m
Air Canada
Deal found 4/14![Air Canada logo]()
$701
This Air Canada deal was found by Cheapflights users on 4/14. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/305:45 pm
ICN
- SFO
2 stops37h 50m
Air Canada
Sat 10/2412:50 pm
SFO
- ICN
2 stops35h 20m
Air Canada
Deal found 4/14![Air Canada logo]()
$704
This Air Canada deal was found by Cheapflights users on 4/13. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/185:45 pm
ICN
- SFO
2 stops34h 22m
Air Canada
Sat 10/2412:50 pm
SFO
- ICN
2 stops35h 20m
Air Canada
Deal found 4/13![Air Canada logo]()
$706
This Air Canada deal was found by Cheapflights users on 4/16. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/95:45 pm
ICN
- SFO
2 stops34h 28m
Air Canada
Sat 5/1612:50 pm
SFO
- ICN
2 stops35h 15m
Air Canada
Deal found 4/16![Air Canada logo]()
$709
This Mytrip deal was found by Cheapflights users on 4/16. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/2510:25 am
ICN
- SFO
1 stop20h 50m
Multiple Airlines
Mon 8/3112:30 am
SFO
- ICN
1 stop26h 45m
Multiple Airlines
Deal found 4/16![Multiple Airlines logo]()
$711
This Air Canada deal was found by Cheapflights users on 4/12. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 4/265:45 pm
ICN
- SFO
2 stops39h 27m
Air Canada
Wed 5/612:50 pm
SFO
- ICN
2 stops35h 15m
Air Canada
Deal found 4/12![Air Canada logo]()
$714
This Air Canada deal was found by Cheapflights users on 4/14. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/115:45 pm
ICN
- SFO
2 stops34h 28m
Air Canada
Wed 5/1312:50 pm
SFO
- ICN
2 stops35h 15m
Air Canada
Deal found 4/14![Air Canada logo]()
$716
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 April 16, 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 April 16, 2026.
This Delta deal was found by Cheapflights users on 4/16. 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.
Fri 6/54:00 pm
ICN
- SFO
Nonstop10h 40m
Delta
Sat 8/228:05 pm
SFO
- ICN
1 stop28h 45m
Delta
Deal found 4/16![Delta logo]()
$879
This Alaska Airlines deal was found by Cheapflights users on 4/15. 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.
Mon 6/227:35 pm
ICN
- SFO
2 stops29h 04m
Alaska Airlines
Wed 8/56:03 am
SFO
- ICN
1 stop19h 27m
Alaska Airlines
Deal found 4/15![Alaska Airlines logo]()
$889
This AIR PREMIA deal was found by Cheapflights users on 4/11. 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 AIR PREMIA is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/216:00 pm
ICN
- SFO
Nonstop11h 00m
AIR PREMIA
Fri 10/23:30 pm
SFO
- ICN
Nonstop12h 40m
AIR PREMIA
Deal found 4/11![AIR PREMIA logo]()
$1,110
This Asiana Airlines deal was found by Cheapflights users on 4/14. 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 Asiana Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/278:50 pm
ICN
- SFO
Nonstop10h 30m
Asiana Airlines
Thu 6/411:50 pm
SFO
- ICN
Nonstop13h 05m
Asiana Airlines
Deal found 4/14![Asiana Airlines logo]()
$1,240
This Alaska Airlines deal was found by Cheapflights users on 4/15. 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.
Mon 6/227:35 pm
ICN
- SFO
1 stop40h 17m
Alaska Airlines
Sat 7/257:03 am
SFO
- ICN
1 stop18h 27m
Alaska Airlines
Deal found 4/15![Alaska Airlines logo]()
$924
This Delta deal was found by Cheapflights users on 4/16. 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 5/114:00 pm
ICN
- SFO
Nonstop10h 40m
Delta
Fri 5/157:15 am
SFO
- ICN
1 stop18h 35m
Delta
Deal found 4/16![Delta logo]()
$1,145
This Alaska Airlines deal was found by Cheapflights users on 4/15. 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.
Fri 5/17:35 pm
ICN
- SFO
1 stop16h 39m
Alaska Airlines
Tue 5/56:57 pm
SFO
- ICN
1 stop30h 33m
Alaska Airlines
Deal found 4/15![Alaska Airlines logo]()
$1,104
This Asiana Airlines deal was found by Cheapflights users on 4/12. 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 Asiana Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/58:50 pm
ICN
- SFO
Nonstop10h 30m
Asiana Airlines
Thu 5/2111:50 pm
SFO
- ICN
Nonstop13h 05m
Asiana Airlines
Deal found 4/12![Asiana Airlines logo]()
$1,245
This Alaska Airlines deal was found by Cheapflights users on 4/12. 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.
Thu 5/217:35 pm
ICN
- SFO
1 stop14h 27m
Alaska Airlines
Fri 5/296:39 pm
SFO
- ICN
1 stop30h 51m
Alaska Airlines
Deal found 4/12![Alaska Airlines logo]()
$1,109
This Alaska Airlines deal was found by Cheapflights users on 4/11. 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 5/37:35 pm
ICN
- SFO
1 stop31h 21m
Alaska Airlines
Sun 5/109:10 pm
SFO
- ICN
1 stop28h 20m
Alaska Airlines
Deal found 4/11![Alaska Airlines logo]()
$1,181
This Alaska Airlines deal was found by Cheapflights users on 4/15. 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.
Sat 5/97:35 pm
ICN
- SFO
1 stop14h 34m
Alaska Airlines
Tue 5/1911:56 am
SFO
- ICN
2 stops37h 34m
Alaska Airlines
Deal found 4/15![Alaska Airlines logo]()
$1,215
This Alaska Airlines deal was found by Cheapflights users on 4/12. 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.
Sat 5/97:35 pm
ICN
- SFO
1 stop14h 34m
Alaska Airlines
Wed 6/37:40 am
SFO
- ICN
2 stops41h 50m
Alaska Airlines
Deal found 4/12![Alaska Airlines logo]()
$1,220
Last-minute flights from Incheon Intl to San FranciscoDiscover last-minute flight deals from Incheon Intl to San Francisco. Data last updated April 16, 2026 and is based on user searches.
Discover last-minute flight deals from Incheon Intl to San Francisco. Data last updated April 16, 2026 and is based on user searches.
This Expedia deal was found by Cheapflights users on 4/15. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/225:45 pm
ICN
- SFO
2 stops39h 27m
Air Canada
Sun 4/261:20 pm
SFO
- ICN
1 stop34h 45m
Air Canada
Deal found 4/15![Air Canada logo]()
$931
This Kiwi.com deal was found by Cheapflights users on 4/16. 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 4/221:20 pm
ICN
- SFO
1 stop17h 25m
Multiple Airlines
Tue 4/2812:30 am
SFO
- ICN
2 stops29h 15m
Multiple Airlines
Deal found 4/16![Multiple Airlines logo]()
$991
This Kiwi.com deal was found by Cheapflights users on 4/16. 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 4/2312:55 pm
ICN
- SFO
2 stops23h 17m
Multiple Airlines
Mon 4/274:45 pm
SFO
- ICN
1 stop15h 14m
Multiple Airlines
Deal found 4/16![Multiple Airlines logo]()
$973
This Kiwi.com deal was found by Cheapflights users on 4/15. 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 4/2412:55 pm
ICN
- SFO
2 stops23h 17m
Multiple Airlines
Sun 4/263:30 pm
SFO
- ICN
Nonstop12h 40m
Multiple Airlines
Deal found 4/15![Multiple Airlines logo]()
$984
This Air Canada deal was found by Cheapflights users on 4/12. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 4/265:45 pm
ICN
- SFO
2 stops39h 27m
Air Canada
Mon 5/1112:50 pm
SFO
- ICN
2 stops35h 15m
Air Canada
Deal found 4/12![Air Canada logo]()
$714
This Air Canada deal was found by Cheapflights users on 4/12. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 4/265:45 pm
ICN
- SFO
2 stops39h 27m
Air Canada
Sun 5/1012:50 pm
SFO
- ICN
2 stops35h 15m
Air Canada
Deal found 4/12![Air Canada logo]()
$841
This Air Canada deal was found by Cheapflights users on 4/12. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 4/265:45 pm
ICN
- SFO
2 stops39h 27m
Air Canada
Wed 5/66:30 am
SFO
- ICN
1 stop17h 35m
Air Canada
Deal found 4/12![Air Canada logo]()
$875
This Air Canada deal was found by Cheapflights users on 4/12. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 4/265:45 pm
ICN
- SFO
2 stops39h 27m
Air Canada
Thu 5/710:55 am
SFO
- ICN
2 stops37h 10m
Air Canada
Deal found 4/12![Air Canada logo]()
$1,004
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 April 16, 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 April 16, 2026.
This FlightHub deal was found by Cheapflights users on 4/15. 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 FlightHub 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 4/15![ZIPAIR logo]()
$391
This FlightHub deal was found by Cheapflights users on 4/12. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/2612:55 pm
ICN
- SFO
1 stop18h 20m
ZIPAIR
Deal found 4/12![ZIPAIR logo]()
$392
This Kiwi.com deal was found by Cheapflights users on 4/14. 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.
Sat 8/2912:55 pm
ICN
- SFO
1 stop18h 20m
ZIPAIR
Deal found 4/14![ZIPAIR logo]()
$399
This Super.com deal was found by Cheapflights users on 4/16. 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 5/2012:55 pm
ICN
- SFO
1 stop17h 50m
ZIPAIR
Deal found 4/16![ZIPAIR logo]()
$403
This CheapOair deal was found by Cheapflights users on 4/16. 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 5/1312:55 pm
ICN
- SFO
1 stop17h 50m
ZIPAIR
Deal found 4/16![ZIPAIR logo]()
$405
This Trip.com deal was found by Cheapflights users on 4/12. 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.
Sun 9/63:00 pm
ICN
- SFO
1 stop16h 15m
Multiple Airlines
Deal found 4/12![Multiple Airlines logo]()
$406
This Super.com deal was found by Cheapflights users on 4/12. 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.
Tue 5/1212:55 pm
ICN
- SFO
1 stop17h 50m
ZIPAIR
Deal found 4/12![ZIPAIR logo]()
$412
This Kiwi.com deal was found by Cheapflights users on 4/14. 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 5/1912:55 pm
ICN
- SFO
1 stop17h 50m
ZIPAIR
Deal found 4/14![ZIPAIR logo]()
$415
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 April 16, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $667 (lol.travel) |
One-way from | $391 (FlightHub) |
Popular in | August |
Cheapest in | February |
Average price | $570 |
Good round-trip deal | $869 or less |
Good one-way deal | $473 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 April 16, 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 6/5
4:00 pm-10:40 am
Nonstop10h 40m
San Francisco
Sat 8/22
8:05 pm-4:50 pm
1 stop28h 45m
$879
IncheonSan Francisco
ICN - SFO
ICNSFO
Incheon Intl
Mon 6/22
7:35 pm-8:39 am
2 stops29h 04m
San Francisco
Wed 8/5
6:03 am-5:30 pm
1 stop19h 27m
$889
IncheonSan Francisco
ICN - SFO
ICNSFO
Incheon Intl
Mon 6/22
7:35 pm-7:52 pm
1 stop40h 17m
San Francisco
Sat 7/25
7:03 am-5:30 pm
1 stop18h 27m
$924
IncheonSan Francisco
ICN - SFO
ICNSFO
Incheon Intl
Fri 5/1
7:35 pm-8:14 pm
1 stop16h 39m
San Francisco
Tue 5/5
6:57 pm-5:30 pm
1 stop30h 33m
$1,104
IncheonSan Francisco
ICN - SFO
ICNSFO
Incheon Intl
Thu 5/21
7:35 pm-6:02 pm
1 stop14h 27m
San Francisco
Fri 5/29
6:39 pm-5:30 pm
1 stop30h 51m
$1,109
IncheonSan Francisco
ICN - SFO
ICNSFO
Incheon Intl
Mon 9/21
6:00 pm-1:00 pm
Nonstop11h 00m
San Francisco
Fri 10/2
3:30 pm-8:10 pm
Nonstop12h 40m
$1,110
IncheonSan Francisco
ICN - SFO
ICNSFO
Incheon Intl
Mon 5/11
4:00 pm-10:40 am
Nonstop10h 40m
San Francisco
Fri 5/15
7:15 am-5:50 pm
1 stop18h 35m
$1,145
IncheonSan Francisco
ICN - SFO
ICNSFO
Incheon Intl
Sun 5/3
7:35 pm-10:56 am
1 stop31h 21m
San Francisco
Sun 5/10
9:10 pm-5:30 pm
1 stop28h 20m
$1,181
IncheonSan Francisco
ICN - SFO
ICNSFO
Incheon Intl
Sat 5/9
7:35 pm-6:09 pm
1 stop14h 34m
San Francisco
Tue 5/19
11:56 am-5:30 pm
2 stops37h 34m
$1,215
IncheonSan Francisco
ICN - SFO
ICNSFO
Incheon Intl
Sat 5/9
7:35 pm-6:09 pm
1 stop14h 34m
San Francisco
Wed 6/3
7:40 am-5:30 pm
2 stops41h 50m
$1,220
Showing 1-10 of 21 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 April.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy2 stars | Trust Score*2 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy1 star | Trust Score*1 star | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy2 stars | Trust Score*2 stars | |
| Price Accuracy1 star | 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
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How far ahead should I book a flight from Incheon Intl Airport to San Francisco?
Use this chart to determine the optimal time to book a round-trip flight from Incheon Intl to San Francisco. Price data was last updated on April 10, 2026.
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 66 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 $535). Flying from Incheon Intl Airport to San Francisco in August is currently the most expensive (average of $869). 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 April 16, 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 April 11, 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 23% of weekly flights between Incheon and San Francisco have experienced delays in the past year, with the average delay time being 142 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 Wednesday 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 April 16, 2026.
See what other customers who have flown with Korean Air,AIR PREMIA, andAsiana Airlines 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
Overall
8.4
Comfort
8.3
Food
8.1
Entertainment
8.2
Reviews
1 / 20
10.0
ExcellentJacqueline,Aug 2025
ICN - SEA
Boarding
8.5
Crew
8.7
Overall
8.4
Comfort
8.3
Food
8.1
Entertainment
8.2
Reviews
1 / 20
10.0
ExcellentJacqueline,Aug 2025
ICN - SEA
Boarding
8.5
Crew
8.7
Overall
8.4
Comfort
8.3
Food
8.1
Entertainment
8.2
Reviews
1 / 20
10.0
ExcellentJacqueline,Aug 2025
ICN - SEA
Boarding
8.5
Crew
8.7
Overall
8.4
Comfort
8.3
Food
8.1
Entertainment
8.2
Reviews
1 / 20
10.0
ExcellentJacqueline,Aug 2025
ICN - SEA
Boarding
8.5
Crew
8.7
Overall
8.4
Comfort
8.3
Food
8.1
Entertainment
8.2
Reviews
1 / 20
10.0
ExcellentJacqueline,Aug 2025
ICN - SEA
Boarding
8.5
Crew
8.7
Overall
8.4
Comfort
8.3
Food
8.1
Entertainment
8.2
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.
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Incheon Intl and San Francisco flights
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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 April 16, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$282 | Average$388 | FlexibilityNo cancel fee | On-time67% | |
| Cheapest$404 | Average$499 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$448 | Average$618 | FlexibilityNo cancel fee | On-time81% | |
| Cheapest$455 | Average$611 | FlexibilityNo cancel fee | On-time76% | |
| Cheapest$480 | Average$655 | FlexibilityNo cancel fee | On-timeN/A |