Cheap Flights to Contra Costa County from ₩159,400

View ₩159,400 flight on Sat, Mar 14, 2026Opens in a new window

Popular airlines to Contra Costa County

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  • American Airlines

  • Delta

  • United

  • Frontier Airlines

  • 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 ₩159,400 for one-way flights and ₩320,200 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Alaska Airlines
Mon, Mar 2 - Thu, Mar 12
EWR
New York
SFO
San Francisco
₩320,200 Roundtrip, found 6 days ago
₩320,200
Roundtrip
found 6 days ago
Select Alaska Airlines flight, departing Mon, Mar 2 from New York to San Francisco, returning Thu, Mar 12, priced at ₩320,200 found 6 days ago
Hawaiian Airlines
Tue, Mar 3 - Wed, Mar 11
EWR
New York
SFO
San Francisco
₩320,200 Roundtrip, found 6 days ago
₩320,200
Roundtrip
found 6 days ago
Select Hawaiian Airlines flight, departing Tue, Mar 3 from New York to San Francisco, returning Wed, Mar 11, priced at ₩320,200 found 6 days ago
Delta
Mon, Feb 9 - Wed, Feb 18
EWR
New York
SFO
San Francisco
₩350,400 Roundtrip, found 5 days ago
₩350,400
Roundtrip
found 5 days ago
Select Delta flight, departing Mon, Feb 9 from New York to San Francisco, returning Wed, Feb 18, priced at ₩350,400 found 5 days ago
Hawaiian Airlines
Tue, Mar 17 - Tue, Mar 24
EWR
New York
SJC
San Jose
₩379,100 Roundtrip, found 6 days ago
₩379,100
Roundtrip
found 6 days ago
Select Hawaiian Airlines flight, departing Tue, Mar 17 from New York to San Jose, returning Tue, Mar 24, priced at ₩379,100 found 6 days ago
United
Thu, Mar 5 - Tue, Mar 10
EWR
New York
SFO
San Francisco
₩467,900 Roundtrip, found 6 days ago
₩467,900
Roundtrip
found 6 days ago
Select United flight, departing Thu, Mar 5 from New York to San Francisco, returning Tue, Mar 10, priced at ₩467,900 found 6 days ago
American Airlines
Thu, Mar 5 - Tue, Mar 10
EWR
New York
SFO
San Francisco
₩483,800 Roundtrip, found 6 days ago
₩483,800
Roundtrip
found 6 days ago
Select American Airlines flight, departing Thu, Mar 5 from New York to San Francisco, returning Tue, Mar 10, priced at ₩483,800 found 6 days ago
American Airlines
Tue, Oct 27 - Wed, Nov 11
ICN
Seoul
SFO
San Francisco
₩589,000 Roundtrip, found 17 hours ago
₩589,000
Roundtrip
found 17 hours ago
Select American Airlines flight, departing Tue, Oct 27 from Seoul to San Francisco, returning Wed, Nov 11, priced at ₩589,000 found 17 hours ago
United
Fri, Feb 27 - Thu, Mar 5
ICN
Seoul
SJC
San Jose
₩643,800 Roundtrip, found 1 day ago
₩643,800
Roundtrip
found 1 day ago
Select United flight, departing Fri, Feb 27 from Seoul to San Jose, returning Thu, Mar 5, priced at ₩643,800 found 1 day ago
Air Canada
Wed, May 27 - Sun, Jul 5
ICN
Seoul
SFO
San Francisco
₩676,100 Roundtrip, just found
₩676,100
Roundtrip
just found
Select Air Canada flight, departing Wed, May 27 from Seoul to San Francisco, returning Sun, Jul 5, priced at ₩676,100 just found
Air Premia
Sat, May 9 - Mon, May 11
ICN
Seoul
SFO
San Francisco
₩678,100 Roundtrip, found 4 days ago
₩678,100
Roundtrip
found 4 days ago
Select Air Premia flight, departing Sat, May 9 from Seoul to San Francisco, returning Mon, May 11, priced at ₩678,100 found 4 days ago

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.

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 ₩320,200. 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 ₩320,200 and ₩678,300. If you were traveling one way out of New York (EWR), you could have picked up a bargain from just ₩159,400.
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 ₩320,200 to ₩678,300 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.

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.

American Airlines
Tue, Oct 27 - Wed, Nov 11
ICN
Seoul
SFO
San Francisco
₩589,000 Roundtrip, found 17 hours ago
₩589,000
Roundtrip
found 17 hours ago
Select American Airlines flight, departing Tue, Oct 27 from Seoul to San Francisco, returning Wed, Nov 11, priced at ₩589,000 found 17 hours ago
*Available to Expedia members.