Cheap Flights to Northern California

View ₩431,320 flight on Mon, May 5, 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 ₩431,320 for one-way flights and ₩650,300 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Air Premia
Fri, May 16 - Sat, May 31
ICN
Seoul
SFO
San Francisco
₩650,300 Roundtrip, found 9 hours ago
₩650,300
Roundtrip
found 9 hours ago
Select Air Premia flight, departing Fri, May 16 from Seoul to San Francisco, returning Sat, May 31, priced at ₩650,300 found 9 hours ago
United
Sun, May 4 - Mon, May 5
ICN
Seoul
SFO
San Francisco
₩676,700 Roundtrip, just found
₩676,700
Roundtrip
just found
Select United flight, departing Sun, May 4 from Seoul to San Francisco, returning Mon, May 5, priced at ₩676,700 just found
Korean Air
Fri, Jun 13 - Sat, Jul 26
ICN
Seoul
SFO
San Francisco
₩689,300 Roundtrip, found 2 days ago
₩689,300
Roundtrip
found 2 days ago
Select Korean Air flight, departing Fri, Jun 13 from Seoul to San Francisco, returning Sat, Jul 26, priced at ₩689,300 found 2 days ago
United
Fri, May 2 - Mon, May 5
ICN
Seoul
SJC
San Jose
₩726,600 Roundtrip, found 1 day ago
₩726,600
Roundtrip
found 1 day ago
Select United flight, departing Fri, May 2 from Seoul to San Jose, returning Mon, May 5, priced at ₩726,600 found 1 day ago
United
Thu, Dec 25 - Tue, Dec 30
ICN
Seoul
MFR
Medford
₩736,600 Roundtrip, found 4 hours ago
₩736,600
Roundtrip
found 4 hours ago
Select United flight, departing Thu, Dec 25 from Seoul to Medford, returning Tue, Dec 30, priced at ₩736,600 found 4 hours ago

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, ₩650,300 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 ₩650,300 and peaked at ₩736,600. For one-way trips out of Seoul (ICN), the lowest price during this time was only ₩431,320.
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 ₩650,300 and ₩736,600. 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.

Trending flights to Northern California

Prices were available within the past 7 days and start at ₩431,320 for one-way flights and ₩650,300 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Air Premia
Fri, May 16 - Sat, May 31
ICN
Seoul
SFO
San Francisco
₩650,300 Roundtrip, found 9 hours ago
₩650,300
Roundtrip
found 9 hours ago
Select Air Premia flight, departing Fri, May 16 from Seoul to San Francisco, returning Sat, May 31, priced at ₩650,300 found 9 hours ago
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