Cheap flights to Contra Costa County

View €67 flight on Wed, 13 May 2026Opens in a new window

Popular airlines to Contra Costa County

  • Alaska Airlines

  • American Airlines

  • Delta

  • United

  • Frontier Airlines

  • Southwest Airlines

  • JetBlue Airways

  • Be in the know

    Get alerts if flight prices drop or rise*

  • Book smarter

    Save up to 15% on select hotels after you book a flight*

  • Earn twice

    Earn your airline miles on top of our rewards
    Sign in

Cheap round-trip flights to Contra Costa County

Prices were available within the past 7 days and start at €67 for one-way flights and €134 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Delta
Thu, 14 May - Mon, 18 May
SAN
San Diego
SFO
San Francisco
€134 Return, found 5 hours ago
€134
Return
found 5 hours ago
Select Delta flight, departing Thu, 14 May from San Diego to San Francisco, returning Mon, 18 May, priced at €134 found 5 hours ago
Delta
Tue, 2 Jun - Tue, 9 Jun
SAN
San Diego
SJC
San Jose
€140 Return, found 4 days ago
€140
Return
found 4 days ago
Select Delta flight, departing Tue, 2 Jun from San Diego to San Jose, returning Tue, 9 Jun, priced at €140 found 4 days ago
United
Thu, 14 May - Mon, 18 May
SAN
San Diego
SFO
San Francisco
€160 Return, found 5 hours ago
€160
Return
found 5 hours ago
Select United flight, departing Thu, 14 May from San Diego to San Francisco, returning Mon, 18 May, priced at €160 found 5 hours ago
American Airlines
Fri, 29 May - Wed, 3 Jun
CLD
Carlsbad
SFO
San Francisco
€194 Return, found 19 hours ago
€194
Return
found 19 hours ago
Select American Airlines flight, departing Fri, 29 May from Carlsbad to San Francisco, returning Wed, 3 Jun, priced at €194 found 19 hours ago
American Airlines
Tue, 2 Jun - Tue, 9 Jun
CLD
Carlsbad
SJC
San Jose
€263 Return, found 4 days ago
€263
Return
found 4 days ago
Select American Airlines flight, departing Tue, 2 Jun from Carlsbad to San Jose, returning Tue, 9 Jun, priced at €263 found 4 days ago
Delta
Thu, 4 Jun - Wed, 10 Jun
MEM
Memphis
OAK
Oakland
€378 Return, found 14 hours ago
€378
Return
found 14 hours ago
Select Delta flight, departing Thu, 4 Jun from Memphis to Oakland, returning Wed, 10 Jun, priced at €378 found 14 hours ago
Delta
Sat, 25 Apr - Tue, 28 Apr
SAN
San Diego
OAK
Oakland
€393 Return, found 2 days ago
€393
Return
found 2 days ago
Select Delta flight, departing Sat, 25 Apr from San Diego to Oakland, returning Tue, 28 Apr, priced at €393 found 2 days ago
Scandinavian Airlines
Mon, 12 Oct - Tue, 20 Oct
DUB
Dublin
SFO
San Francisco
€513 Return, found 1 day ago
€513
Return
found 1 day ago
Select Scandinavian Airlines flight, departing Mon, 12 Oct from Dublin to San Francisco, returning Tue, 20 Oct, priced at €513 found 1 day ago
Finnair
Mon, 27 Apr - Sun, 10 May
DUB
Dublin
SJC
San Jose
€537 Return, found 2 days ago
€537
Return
found 2 days ago
Select Finnair flight, departing Mon, 27 Apr from Dublin to San Jose, returning Sun, 10 May, priced at €537 found 2 days ago
JetBlue Airways
Sat, 9 May - Mon, 11 May
SAN
San Diego
SFO
San Francisco
€542 Return, found 3 days ago
€542
Return
found 3 days ago
Select JetBlue Airways flight, departing Sat, 9 May from San Diego to San Francisco, returning Mon, 11 May, priced at €542 found 3 days ago

Trending flights to Contra Costa County

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

Scandinavian Airlines
Mon, 12 Oct - Tue, 20 Oct
DUB
Dublin
SFO
San Francisco
€513 Return, found 1 day ago
€513
Return
found 1 day ago
Select Scandinavian Airlines flight, departing Mon, 12 Oct from Dublin to San Francisco, returning Tue, 20 Oct, priced at €513 found 1 day ago

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 €134. 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 €134 and €542. If you were travelling one way out of San Diego (SAN), you could have picked up a bargain from just €67.
What are the most popular airports to fly into in Contra Costa County?
San Francisco Intl. Airport (SFO) is the primary gateway for many travelling to Contra Costa County. Around 11,935 flights each month touch down here.
How much is a plane ticket to Contra Costa County?
Plane tickets to Contra Costa County varied from €134 to €542 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 13ºC to 27ºC 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.

Explore a world of travel with Expedia

*Available to Expedia members.