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 NT$2,520

View NT$2,520 flight on Sat, 2026/9/12Opens in a new window

Popular airlines to Contra Costa County

  • Alaska Airlines

  • American Airlines

  • Delta

  • Frontier Airlines

  • United

  • JetBlue Airways

  • Southwest Airlines

  • Be in the know

    Get alerts if flight prices drop or rise*

  • Book smarter

    Save up to 45% on select hotels after you book a flight*

  • Earn twice

    Earn your airline miles on top of our rewards
    Sign in

How much is the cheapest flight to Contra Costa County?

Prices were available within the past 7 days and start at NT$2,520 for one-way flights and NT$5,047 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Delta
Tue, Aug 18 - Thu, Aug 20
SEA
Seattle
SFO
San Francisco
NT$5,047 Roundtrip, found 1 day ago
NT$5,047
Roundtrip
found 1 day ago
Select Delta flight, departing Tue, Aug 18 from Seattle to San Francisco, returning Thu, Aug 20, priced at NT$5,047 found 1 day ago
Alaska Airlines
Sat, Sep 5 - Mon, Sep 14
PAE
Seattle
SFO
San Francisco
NT$5,047 Roundtrip, found 1 day ago
NT$5,047
Roundtrip
found 1 day ago
Select Alaska Airlines flight, departing Sat, Sep 5 from Seattle to San Francisco, returning Mon, Sep 14, priced at NT$5,047 found 1 day ago
Delta
Tue, Aug 11 - Wed, Aug 12
SEA
Seattle
SJC
San Jose
NT$5,484 Roundtrip, found 4 days ago
NT$5,484
Roundtrip
found 4 days ago
Select Delta flight, departing Tue, Aug 11 from Seattle to San Jose, returning Wed, Aug 12, priced at NT$5,484 found 4 days ago
United
Sat, Sep 5 - Mon, Sep 7
SEA
Seattle
SFO
San Francisco
NT$7,620 Roundtrip, found 2 days ago
NT$7,620
Roundtrip
found 2 days ago
Select United flight, departing Sat, Sep 5 from Seattle to San Francisco, returning Mon, Sep 7, priced at NT$7,620 found 2 days ago
American Airlines
Tue, Sep 29 - Wed, Sep 30
SEA
Seattle
SFO
San Francisco
NT$8,618 Roundtrip, found 4 days ago
NT$8,618
Roundtrip
found 4 days ago
Select American Airlines flight, departing Tue, Sep 29 from Seattle to San Francisco, returning Wed, Sep 30, priced at NT$8,618 found 4 days ago
Delta
Fri, Jul 17 - Mon, Aug 10
SEA
Seattle
OAK
Oakland
NT$19,863 Roundtrip, found 1 day ago
NT$19,863
Roundtrip
found 1 day ago
Select Delta flight, departing Fri, Jul 17 from Seattle to Oakland, returning Mon, Aug 10, priced at NT$19,863 found 1 day ago
Delta
Thu, Oct 1 - Wed, Oct 14
TPE
Taipei
SFO
San Francisco
NT$22,542 Roundtrip, just found
NT$22,542
Roundtrip
just found
Select Delta flight, departing Thu, Oct 1 from Taipei to San Francisco, returning Wed, Oct 14, priced at NT$22,542 just found
Korean Air
Fri, Sep 4 - Sat, Sep 5
TPE
Taipei
SFO
San Francisco
NT$22,908 Roundtrip, just found
NT$22,908
Roundtrip
just found
Select Korean Air flight, departing Fri, Sep 4 from Taipei to San Francisco, returning Sat, Sep 5, priced at NT$22,908 just found
Cathay Pacific
Sun, Oct 18 - Sun, Oct 18
TPE
Taipei
SFO
San Francisco
NT$23,067 Roundtrip, just found
NT$23,067
Roundtrip
just found
Select Cathay Pacific flight, departing Sun, Oct 18 from Taipei to San Francisco, returning Sun, Oct 18, priced at NT$23,067 just found
Asiana Airlines
Thu, Oct 1 - Wed, Oct 14
TPE
Taipei
SFO
San Francisco
NT$24,558 Roundtrip, just found
NT$24,558
Roundtrip
just found
Select Asiana Airlines flight, departing Thu, Oct 1 from Taipei to San Francisco, returning Wed, Oct 14, priced at NT$24,558 just found

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.

Delta
Thu, Oct 1 - Wed, Oct 14
TPE
Taipei
SFO
San Francisco
NT$22,542 Roundtrip, just found
NT$22,542
Roundtrip
just found
Select Delta flight, departing Thu, Oct 1 from Taipei to San Francisco, returning Wed, Oct 14, priced at NT$22,542 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 NT$5,047. 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 NT$5,047 and NT$24,558. If you were traveling one way out of Seattle (SEA), you could have picked up a bargain from just NT$2,520.
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 NT$5,047 to NT$24,558 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.
*Available to Expedia members.