Cheap Flights to Northern California

View ₩408,900 flight on Sun, May 11, 2025Opens in a new window

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How much is the cheapest flight to Northern California?

Prices were available within the past 7 days and start at ₩408,900 for one-way flights and ₩746,100 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Air Canada
Thu, Nov 13 - Tue, Nov 18
ICN
Incheon Intl.
SFO
San Francisco Intl.
₩746,100 Roundtrip, just found
₩746,100
Roundtrip
just found
Select Air Canada flight, departing Thu, Nov 13 from Incheon Intl. to San Francisco Intl., returning Tue, Nov 18, priced at ₩746,100 just found
United
Tue, Apr 8 - Sat, Apr 12
ICN
Incheon Intl.
SFO
San Francisco Intl.
₩746,900 Roundtrip, just found
₩746,900
Roundtrip
just found
Select United flight, departing Tue, Apr 8 from Incheon Intl. to San Francisco Intl., returning Sat, Apr 12, priced at ₩746,900 just found
Air Premia
Mon, Apr 14 - Wed, Apr 30
ICN
Incheon Intl.
SFO
San Francisco Intl.
₩835,300 Roundtrip, just found
₩835,300
Roundtrip
just found
Select Air Premia flight, departing Mon, Apr 14 from Incheon Intl. to San Francisco Intl., returning Wed, Apr 30, priced at ₩835,300 just found
Korean Air
Tue, Apr 15 - Tue, Apr 22
ICN
Incheon Intl.
SFO
San Francisco Intl.
₩904,500 Roundtrip, found 13 hours ago
₩904,500
Roundtrip
found 13 hours ago
Select Korean Air flight, departing Tue, Apr 15 from Incheon Intl. to San Francisco Intl., returning Tue, Apr 22, priced at ₩904,500 found 13 hours ago
Delta
Wed, Apr 2 - Wed, Apr 9
ICN
Incheon Intl.
SFO
San Francisco Intl.
₩908,900 Roundtrip, just found
₩908,900
Roundtrip
just found
Select Delta flight, departing Wed, Apr 2 from Incheon Intl. to San Francisco Intl., returning Wed, Apr 9, priced at ₩908,900 just found

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.

Frequently asked questions

How do I find cheap flights to Northern California that have flexible change policies?
When it comes to traveling these days, flexibility is key. That’s why we’ve added a “No change fee” filter to help you locate flexible, cheap fares to Northern California. It’s on the left-hand side of your screen under the “Flexible change policies” heading.
Which airlines fly to Northern California?
Wherever you’re planning to wander in Northern California and whenever you’re hoping to jet off, you’ll discover your perfect flight with one of these top airlines:

  • Southwest Airlines - 6,924 flights to or near Northern California each month, including 2,314 flights to Oakland Intl. Airport (OAK) and 2,179 flights to Norman Y. Mineta San Jose Intl. Airport (SJC) per month.
  • United Airlines - 6,482 flights to or near Northern California each month, including 5,914 flights to San Francisco Intl. Airport (SFO) and 446 flights to Sacramento Intl. Airport (SMF) per month.
  • Alaska Airlines - 3,567 flights to or near Northern California each month, including 2,349 flights to San Francisco Intl. Airport (SFO) and 689 flights to Norman Y. Mineta San Jose Intl. Airport (SJC) per month.

How can I find cheap tickets to Northern California?
In the last seven days, ₩746,100 was the best price for a flight to Northern California. For even greater savings, book ahead of time and be flexible with your travel dates. Search for your airfare to Northern California, then compare prices for similar time frames by clicking on the “flexible dates” link above.
How much is a flight to Northern California?
In the last seven days, return flights to Northern California sold for as low as ₩746,100 and peaked at ₩908,900. For one-way trips out of Seoul (ICN), the lowest price during this time was only ₩408,900.
What are the most popular airports to fly into in Northern California?
Which airport you touch down at in Northern California will depend on the city you’re coming from and where you’re headed. Listed below are the most popular airports in this region:

  • San Francisco Intl. Airport (SFO) - 11,935 flights per month.
  • Sacramento Intl. Airport (SMF) - 3,875 flights per month.
  • Norman Y. Mineta San Jose Intl. Airport (SJC) - 3,788 flights per month.

When is the cheapest time to fly to Northern California?
Take off to Northern California early in the week and you’ll usually be rewarded more economical fares. Tuesday is typically the cheapest day to get on a plane, closely followed by Monday. If you’re hoping to avoid the priciest flights, keep clear of Saturdays.
How much is a plane ticket to Northern California?
In the last seven days, plane tickets to Northern California ranged between ₩746,100 and ₩908,900. Prices generally depend on the time of departure, seating class, airline and when the fare is booked.
What months are the cheapest to book a flight to Northern California?
The best month to purchase affordable fares to Northern California is February. Bear in mind that in the U.S, the most expensive time to book a ticket is during the festive month of December.
Flights to Northern California information
Destination airport
San Francisco Intl.
Destination airport IATA code
SFO
Destination city name
San Francisco
Roundtrip price
₩174,324

Trending flights to Northern California

Prices were available within the past 7 days and start at ₩408,900 for one-way flights and ₩746,100 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Air Canada
Thu, Nov 13 - Tue, Nov 18
ICN
Incheon Intl.
SFO
San Francisco Intl.
₩746,100 Roundtrip, just found
₩746,100
Roundtrip
just found
Select Air Canada flight, departing Thu, Nov 13 from Incheon Intl. to San Francisco Intl., returning Tue, Nov 18, priced at ₩746,100 just found
*Available to Expedia members.