Cheap Flights to Northern California

View ₩537,900 flight on Fri, Nov 7, 2025Opens in a new window

Popular airlines

  • Delta

    Delta

  • United

    United

  • Cathay Pacific

    Cathay Pacific

  • EVA Airways

    EVA Airways

  • Asiana Airlines

    Asiana Airlines

  • Korean Air

    Korean Air

  • Japan Airlines

    Japan Airlines

  • 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

How much is the cheapest flight to Northern California?

Prices were available within the past 7 days and start at ₩537,900 for one-way flights and ₩615,200 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Air Canada
Wed, Oct 29 - Mon, Nov 3
ICN
Seoul
SFO
San Francisco
₩615,200 Roundtrip, found 16 hours ago
₩615,200
Roundtrip
found 16 hours ago
Select Air Canada flight, departing Wed, Oct 29 from Seoul to San Francisco, returning Mon, Nov 3, priced at ₩615,200 found 16 hours ago
Asiana Airlines
Thu, Sep 11 - Mon, Sep 15
GMP
Seoul
SFO
San Francisco
₩634,000 Roundtrip, found 18 hours ago
₩634,000
Roundtrip
found 18 hours ago
Select Asiana Airlines flight, departing Thu, Sep 11 from Seoul to San Francisco, returning Mon, Sep 15, priced at ₩634,000 found 18 hours ago
Air Premia
Sun, Nov 9 - Mon, Nov 24
ICN
Seoul
SFO
San Francisco
₩801,000 Roundtrip, just found
₩801,000
Roundtrip
just found
Select Air Premia flight, departing Sun, Nov 9 from Seoul to San Francisco, returning Mon, Nov 24, priced at ₩801,000 just found
United
Mon, Sep 15 - Sat, Sep 20
ICN
Seoul
SFO
San Francisco
₩821,600 Roundtrip, found 16 hours ago
₩821,600
Roundtrip
found 16 hours ago
Select United flight, departing Mon, Sep 15 from Seoul to San Francisco, returning Sat, Sep 20, priced at ₩821,600 found 16 hours ago
Delta
Tue, Sep 16 - Wed, Sep 17
ICN
Seoul
SFO
San Francisco
₩837,400 Roundtrip, found 1 hour ago
₩837,400
Roundtrip
found 1 hour ago
Select Delta flight, departing Tue, Sep 16 from Seoul to San Francisco, returning Wed, Sep 17, priced at ₩837,400 found 1 hour ago

Find the cheapest month to fly from Columbus (CMH) to San Francisco (SFO)

February is typically the cheapest month to fly

From ₩216,502 - ₩596,351 per traveler.

Graph displaying average flight prices per month

Searching for cheap flights to Northern California? No travel company presents more choices than Expedia if you're looking to compare flights to Northern California. With more airlines, cheaper flights, fewer stops, and more departure and arrival times travellers should ensure they search on Expedia before any holiday to United States of America. Expedia provides the cheapest flights to many destinations in United States of America and you may find even greater savings if you combine your flight with a hotel stay in Northern California.

Flights to Northern California information
Destination airport
San Francisco Intl.
Destination airport IATA code
SFO
Destination city name
San Francisco
Roundtrip price
₩615,200

Trending flights to Northern California

Prices were available within the past 7 days and start at ₩537,900 for one-way flights and ₩615,200 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Air Canada
Wed, Oct 29 - Mon, Nov 3
ICN
Seoul
SFO
San Francisco
₩615,200 Roundtrip, found 16 hours ago
₩615,200
Roundtrip
found 16 hours ago
Select Air Canada flight, departing Wed, Oct 29 from Seoul to San Francisco, returning Mon, Nov 3, priced at ₩615,200 found 16 hours ago
*Available to Expedia members.