A coastal pathway with lush greenery and purple flowers, leading to a view of the ocean and distant cityscape.

Cheap Flights to Contra Costa County from ₩518,300

View ₩518,300 flight on Fri, Oct 16, 2026Opens in a new window

Popular airlines to Contra Costa County

  • Alaska Airlines

  • American Airlines

  • United

  • Delta

  • Frontier Airlines

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  • Southwest Airlines

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How much is the cheapest flight to Contra Costa County?

Prices were available within the past 7 days and start at ₩518,300 for one-way flights and ₩955,400 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

United
Fri, Apr 9 - Sat, Apr 24
ICN
Seoul
SFO
San Francisco
₩955,400 Roundtrip, just found
₩955,400
Roundtrip
just found
Select United flight, departing Fri, Apr 9 from Seoul to San Francisco, returning Sat, Apr 24, priced at ₩955,400 just found
Air Canada
Fri, Apr 9 - Sat, Apr 24
ICN
Seoul
SFO
San Francisco
₩998,500 Roundtrip, just found
₩998,500
Roundtrip
just found
Select Air Canada flight, departing Fri, Apr 9 from Seoul to San Francisco, returning Sat, Apr 24, priced at ₩998,500 just found
Alaska Airlines
Thu, Sep 3 - Mon, Sep 21
ICN
Seoul
SFO
San Francisco
₩1,008,900 Roundtrip, found 1 hour ago
₩1,008,900
Roundtrip
found 1 hour ago
Select Alaska Airlines flight, departing Thu, Sep 3 from Seoul to San Francisco, returning Mon, Sep 21, priced at ₩1,008,900 found 1 hour ago
Air Premia
Fri, Apr 9 - Sat, Apr 24
ICN
Seoul
SFO
San Francisco
₩1,029,400 Roundtrip, just found
₩1,029,400
Roundtrip
just found
Select Air Premia flight, departing Fri, Apr 9 from Seoul to San Francisco, returning Sat, Apr 24, priced at ₩1,029,400 just found
United
Thu, Sep 3 - Mon, Sep 7
ICN
Seoul
SJC
San Jose
₩1,076,100 Roundtrip, found 1 hour ago
₩1,076,100
Roundtrip
found 1 hour ago
Select United flight, departing Thu, Sep 3 from Seoul to San Jose, returning Mon, Sep 7, priced at ₩1,076,100 found 1 hour ago
Philippine Airlines
Wed, Mar 17 - Thu, Apr 1
ICN
Seoul
SFO
San Francisco
₩1,157,000 Roundtrip, just found
₩1,157,000
Roundtrip
just found
Select Philippine Airlines flight, departing Wed, Mar 17 from Seoul to San Francisco, returning Thu, Apr 1, priced at ₩1,157,000 just found
Korean Air
Mon, Apr 5 - Tue, Apr 20
ICN
Seoul
SFO
San Francisco
₩1,191,000 Roundtrip, just found
₩1,191,000
Roundtrip
just found
Select Korean Air flight, departing Mon, Apr 5 from Seoul to San Francisco, returning Tue, Apr 20, priced at ₩1,191,000 just found
Delta
Mon, Apr 5 - Tue, Apr 20
ICN
Seoul
SFO
San Francisco
₩1,191,000 Roundtrip, just found
₩1,191,000
Roundtrip
just found
Select Delta flight, departing Mon, Apr 5 from Seoul to San Francisco, returning Tue, Apr 20, priced at ₩1,191,000 just found
China Airlines
Sat, Jan 30 - Sat, Feb 27
DAD
Da Nang
SFO
San Francisco
₩1,199,400 Roundtrip, found 10 hours ago
₩1,199,400
Roundtrip
found 10 hours ago
Select China Airlines flight, departing Sat, Jan 30 from Da Nang to San Francisco, returning Sat, Feb 27, priced at ₩1,199,400 found 10 hours ago
Singapore Airlines
Mon, Oct 12 - Mon, Nov 9
DAD
Da Nang
SFO
San Francisco
₩1,234,200 Roundtrip, found 14 hours ago
₩1,234,200
Roundtrip
found 14 hours ago
Select Singapore Airlines flight, departing Mon, Oct 12 from Da Nang to San Francisco, returning Mon, Nov 9, priced at ₩1,234,200 found 14 hours ago

Trending flights to Contra Costa County

These prices were available within the past 7 days. Prices quoted are per person, round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

United
Fri, Apr 9 - Sat, Apr 24
ICN
Seoul
SFO
San Francisco
₩955,400 Roundtrip, just found
₩955,400
Roundtrip
just found
Select United flight, departing Fri, Apr 9 from Seoul to San Francisco, returning Sat, Apr 24, priced at ₩955,400 just found

Frequently asked questions

How do I find cheap flights to Contra Costa County that have flexible change policies?
It's as easy as counting to three with Expedia. Firstly, enter your travel details and click "Search." Next step? Check "No change fee" directly under the "Flexible change policies" subheading on the left-hand side of your screen. Step 3. Book a flexible and cheap airfare to Contra Costa County.
Which airlines fly to Contra Costa County?
You can choose from a variety of airlines that operate flights in or near Contra Costa County. Some of your options are:

  • United Airlines - 5,914 flights to or near Contra Costa County each month, including 5,914 flights to San Francisco Intl. Airport (SFO) per month.
  • Alaska Airlines - 2,349 flights to or near Contra Costa County each month, including 2,349 flights to San Francisco Intl. Airport (SFO) per month.
  • Delta Air Lines - 1,222 flights to or near Contra Costa County each month, including 1,222 flights to San Francisco Intl. Airport (SFO) per month.

How can I find cheap tickets to Contra Costa County?
One of the easiest ways to bag cheap tickets to Contra Costa County is to be flexible with your travel dates. Search for your flights, then click "flexible dates" above the results. You'll see the cheapest prices for nearby days. The best price for a flight to Contra Costa County in the last seven days was ₩955,400. Booking well ahead will usually help you pick up an even bigger bargain.
How much is a flight to Contra Costa County?
The price of a round-trip airfare to Contra Costa County in the last seven days fluctuated between ₩955,400 and ₩1,234,200. If you were traveling one way out of Seoul (ICN), you could have picked up a bargain from just ₩518,300.
What are the most popular airports to fly into in Contra Costa County?
San Francisco Intl. Airport (SFO) is the primary gateway for many traveling to Contra Costa County. Around 11,935 flights each month touch down here.
When is the cheapest time to fly to Contra Costa County?
If you can be flexible with what day you jet off to Contra Costa County, fly out early on in the week. The most economical day to take off is normally Tuesday, followed by Monday. Saturday is typically the costliest day, with lots of vacationers preferring to fly on weekends.
How much is a plane ticket to Contra Costa County?
Plane tickets to Contra Costa County varied from ₩955,400 to ₩1,234,200 in the last seven days. Usually, the earlier you book the bigger the bargain.
What is the best time to go to Contra Costa County?
A good time to go to Concord is after June 20 when summer starts. In Contra Costa County's busiest city, average temperatures fluctuate from 55ºF to 80ºF during this time — perfect weather for touring around! May, June and August are the most popular months to discover this destination.
What months are the cheapest to book a flight to Contra Costa County?
An inexpensive month to find a flight to Contra Costa County is February, whereas prices rise considerably in December. Give this month a miss if you want to save your dollars.

Book with confidence

About Contra Costa County

Expedia offers flights to Contra Costa County to meet every traveler's needs. Whatever your flight need - Expedia has the flight for you. So choose from flights to Contra Costa County or destinations around the world and discover how easy it is to make your flight reservations on Expedia.
About Contra Costa County
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