$42 Cheap flights to Contra Costa County

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Top places to visit in Contra Costa County

Aerial view of a busy I-680 highway in Walnut Creek, California, USA. Cars and trucks are commuting during the day, showcasing the region's infrastructure and traffic patterns.
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Walnut Creek

Walnut Creek

Cheap flights to Contra Costa County from $42 One Way, $92 Round Trip

$92 return flights and $42 one-way flights to Contra Costa County were the cheapest prices found within the past 7 days, for the period specified. Prices and availability are subject to change. Additional terms apply.

Tue, May 5 - Tue, May 5
PDX
Portland
SFO
San Francisco
$92 Roundtrip, found 3 days ago
$92
Roundtrip
found 3 days ago
Select Alaska Airlines flight, departing Tue, May 5 from Portland to San Francisco, returning Tue, May 5, priced at $92 found 3 days ago
Tue, Apr 28 - Tue, Apr 28
SEA
Seattle
OAK
Oakland
$92 Roundtrip, found 13 hours ago
$92
Roundtrip
found 13 hours ago
Select Alaska Airlines flight, departing Tue, Apr 28 from Seattle to Oakland, returning Tue, Apr 28, priced at $92 found 13 hours ago
Wed, May 13 - Wed, May 13
SEA
Seattle
SFO
San Francisco
$92 Roundtrip, found 2 days ago
$92
Roundtrip
found 2 days ago
Select Alaska Airlines flight, departing Wed, May 13 from Seattle to San Francisco, returning Wed, May 13, priced at $92 found 2 days ago
Sat, May 2 - Sat, May 2
SEA
Seattle
SJC
San Jose
$93 Roundtrip, found 2 days ago
$93
Roundtrip
found 2 days ago
Select Alaska Airlines flight, departing Sat, May 2 from Seattle to San Jose, returning Sat, May 2, priced at $93 found 2 days ago
Sat, Apr 25 - Sat, Apr 25
SEA
Seattle
SJC
San Jose
$94 Roundtrip, found 2 days ago
$94
Roundtrip
found 2 days ago
Select Delta flight, departing Sat, Apr 25 from Seattle to San Jose, returning Sat, Apr 25, priced at $94 found 2 days ago
Sat, May 9 - Tue, May 19
PAE
Seattle
SFO
San Francisco
$97 Roundtrip, found 1 day ago
$97
Roundtrip
found 1 day ago
Select Alaska Airlines flight, departing Sat, May 9 from Seattle to San Francisco, returning Tue, May 19, priced at $97 found 1 day ago
Tue, Apr 28 - Tue, May 5
EWR
New York
SFO
San Francisco
$181 Roundtrip, just found
$181
Roundtrip
just found
Select Alaska Airlines flight, departing Tue, Apr 28 from New York to San Francisco, returning Tue, May 5, priced at $181 just found
Tue, Apr 28 - Tue, May 5
EWR
New York
SFO
San Francisco
$182 Roundtrip, just found
$182
Roundtrip
just found
Select American Airlines flight, departing Tue, Apr 28 from New York to San Francisco, returning Tue, May 5, priced at $182 just found
Tue, Apr 28 - Tue, May 5
EWR
New York
SFO
San Francisco
$202 Roundtrip, just found
$202
Roundtrip
just found
Select United flight, departing Tue, Apr 28 from New York to San Francisco, returning Tue, May 5, priced at $202 just found
Thu, Apr 9 - Mon, Apr 13
JFK
New York
SFO
San Francisco
$202 Roundtrip, found 6 hours ago
$202
Roundtrip
found 6 hours ago
Select Frontier Airlines flight, departing Thu, Apr 9 from New York to San Francisco, returning Mon, Apr 13, priced at $202 found 6 hours ago
Tue, Apr 28 - Wed, Apr 29
EWR
New York
SFO
San Francisco
$207 Roundtrip, found 8 hours ago
$207
Roundtrip
found 8 hours ago
Select Alaska Airlines flight, departing Tue, Apr 28 from New York to San Francisco, returning Wed, Apr 29, priced at $207 found 8 hours ago
Tue, Mar 17 - Tue, Mar 17
LGA
New York
SFO
San Francisco
$217 Roundtrip, found 2 days ago
$217
Roundtrip
found 2 days ago
Select Frontier Airlines flight, departing Tue, Mar 17 from New York to San Francisco, returning Tue, Mar 17, priced at $217 found 2 days ago

Deals For This Weekend's Flights

OriginDestinationTravel DatesFlights From*
PDXOaklandMarch 6 to April 13$291
MCOSan FranciscoMarch 6 to March 17$298
MCOSan FranciscoMarch 6 to March 17$298
MCOSan JoseMarch 6 to March 9$388
MCOSan JoseMarch 6 to March 9$388
PDXSan FranciscoMarch 8 to March 12$416
PDXSan JoseMarch 8 to March 14$447
MCOOaklandMarch 8 to March 9$582
MCOOaklandMarch 8 to March 9$582
*Prices include taxes and fees

Find The Perfect Hotel For After Your Flight

Score Epic Contra Costa County Accommodation Deals

Walnut Creek Marriott

Walnut Creek Marriott

3.5 out of 5
2355 N Main St Walnut Creek CA
Fully refundableReserve now, pay when you stay
$125 nightly
The price is $140 total per night from Feb 28 to Mar 1
$140 total
Feb 28 - Mar 1
Total with taxes and fees
Book a stay at this business-friendly hotel in Walnut Creek. Enjoy a 24-hour fitness center, valet parking (surcharge), and a 24-hour front desk. Our guests ...
8.6/10 Excellent! (1,002 reviews)
Lovely hotel

Reviewed on Feb 25, 2026

Opens in a new windowWalnut Creek Marriott
Embassy Suites by Hilton Walnut Creek

Embassy Suites by Hilton Walnut Creek

3.5 out of 5
1345 Treat Boulevard Walnut Creek CA
Fully refundableReserve now, pay when you stay
$118 nightly
The price is $134 total per night from Mar 8 to Mar 9
$134 total
Mar 8 - Mar 9
Total with taxes and fees
Book a stay at this business-friendly hotel in Walnut Creek. Enjoy free breakfast, free WiFi, and room service. Our guests praise the breakfast and the helpful ...
8.4/10 Very Good! (1,223 reviews)
restuarant and bar very nice- food better than expected

Reviewed on Feb 26, 2026

Opens in a new windowEmbassy Suites by Hilton Walnut Creek
Sonesta Select Pleasant Hill

Sonesta Select Pleasant Hill

3 out of 5
2250 Contra Costa Blvd Pleasant Hill CA
Fully refundableReserve now, pay when you stay
$111 nightly
The price is $127 total per night from Mar 22 to Mar 23
$127 total
Mar 22 - Mar 23
Total with taxes and fees
Book a stay at this business-friendly hotel in Pleasant Hill. Enjoy free WiFi, breakfast (surcharge), and a 24-hour fitness center. Our guests praise the helpful ...
8.8/10 Excellent! (1,198 reviews)
Room was clean staff was nice. I stay there often.

Reviewed on Feb 26, 2026

Opens in a new windowSonesta Select Pleasant Hill
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Marriott San Ramon

Marriott San Ramon

4 out of 5
2600 Bishop Dr San Ramon CA
Fully refundableReserve now, pay when you stay
$135 nightly
The price is $147 total per night from Mar 1 to Mar 2
$147 total
Mar 1 - Mar 2
Total with taxes and fees
Book a stay at this business-friendly hotel in San Ramon. Enjoy breakfast (surcharge), a 24-hour fitness center, and parking (surcharge). Our guests praise the ...
8.8/10 Excellent! (1,000 reviews)
Clean room. Although I booked through Expedia, they gave me Marriott membership perks.

Reviewed on Feb 20, 2026

Opens in a new windowMarriott San Ramon
Lowest nightly price found within the past 24 hours based on a 1 night stay for 2 adults. Prices and availability subject to change. Additional terms may apply.

Need a Car For After Your Flight?

Special

Managers Choice or similar
  • 5 people
  • Unlimited mileage
Los Angeles, California, USA
Managers Choice

$12

$24 total
found 14 hours ago
Special Managers Choice

Midsize

TOYOTA COROLLA or similar
  • 5 people
  • Unlimited mileage
Los Angeles, California, USA
TOYOTA COROLLA

$13

$48 total
found 14 hours ago
Midsize TOYOTA COROLLA

Fullsize

Toyota_Camry or similar
  • 5 people
  • Unlimited mileage
Los Angeles, California, USA
Toyota_Camry

$14

$53 total
found 14 hours ago
Fullsize Toyota_Camry

Standard

Toyota Corolla or similar
  • 5 people
  • Unlimited mileage
Los Angeles, California, USA
Toyota Corolla

$15

$74 total
found 3 days ago
Standard Toyota Corolla
Lowest prices found within the past 14 hours. Prices and availability subject to change. Additional terms may apply.

Contra Costa County

Save money on your flights to Contra Costa County as well as on hotel and car packages.

 

Free Fees

Snap up cheap Contra Costa County flights at Orbitz, and pay no booking fees. We also don’t charge fees when your plans change or are cancelled. While you’re there, check out our low fare deals on flights to other locations besides flights to Contra Costa County.

Everyday Is a Great Day to Save Even More

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Mix and Match

At Orbitz, we turned a great idea from the world of fashion into another way for you to save money. When you shop our low cost tickets on flights to any destination, don’t be afraid to mix and match different airlines for maximum savings on your Contra Costa County flights air ticket. Save more on air travel every day in every way at Orbitz.

Frequently asked questions

Which airlines fly to Contra Costa County?
With 24 airlines waiting to whisk you off to Contra Costa County, finding the ideal flight will be a cinch. Lock in a ticket with one of these major international carriers that touch down in San Francisco Intl. Airport (SFO):

  • United Airlines - 487 flights to Contra Costa County per month
  • Air Canada - 261 flights to Contra Costa County per month
  • Alaska Airlines - 56 flights to Contra Costa County per month

How much is a flight to Contra Costa County?
If you're hunting down round-trip flights, fares ranged from $92 to $582 this week. The most affordable one-way ticket was $42, departing from Seattle (SEA).
How to book the cheapest flight to Contra Costa County?
Landing cheap flights to Contra Costa County is as simple as booking your ticket with Orbitz. But if you'd love to make sure you're getting the best flight deals around, here are a few tips worth following:

  • Depending on where you're taking off from, select the 'Nearby airports' function (located under the departure and arrival form fields). Oftentimes, other departure points will have more competitive fares.
  • If your plans aren't set in concrete, click on the 'Show flexible dates' option to compare flight deals for a variety of departure dates. You may find an amazing fare.
  • Select 'Show options' to filter your search results. You can pick your preferred seating class and airline here. Under 'Sort & Filter' to the left, you can even select whether you want to fly in the morning, afternoon or evening.
  • Once you've figured out your travel dates, don't delay booking your flight. Airfares generally become more expensive as the departure date nears.
  • Consider bundling your flights, hotels and car rentals into an Orbitz package deal to save cash.
  • Don't travel during the busy season if you can. By avoiding school vacations and summer, you can save loads on your airfares.

What is the best time to book a flight to Contra Costa County?
If your schedule allows, book your tickets to Contra Costa County in January. This is the best month for low airfares, followed by February and August. With a bit of organizing, you're guaranteed to find a cheap flight with Orbitz.
What day of the week is the cheapest to book a flight to Contra Costa County?
To pick up an unbeatable flight deal, make a booking on a Tuesday, Wednesday or Saturday. These are generally the cheapest days of the week to book seats to Contra Costa County.
What is the cheapest day of the week to fly to Contra Costa County?
Everyone enjoys a good bargain, so we recommend going early in the week for cheap flights to Contra Costa County. Orbitz data from 2020 shows you can lock in the best prices on flights that depart on Mondays. Tuesdays are the next cheapest day, while Saturdays are the dearest. Many passengers like to travel at the end of the week, so leave those Saturdays for catching up with pals.
What is the cheapest month to fly to Contra Costa County?
Travel during August if you're sticking to a budget. Orbitz data shows that this is generally the best month for cheap flights to Contra Costa County. June is when ticket prices are at their most expensive.
Which airlines allow free cancellation?
Life changes, and we think your ticket should be able to do the same. That's why Orbitz makes it easy to search for flights with no change fees and free cancellation. Just enter your travel details and then choose "Filter by flexible change policies." How's that for easy?
What do I need for the flight to Contra Costa County?
Whether you're a frequent flyer or it's your first time in the air, it helps to be organized when you travel. Here are a few things to keep in mind:

  • Ensure that you have your travel paperwork and some identification. For international journeys, you'll need to bring your passport. When purchasing your tickets, always use the same name, birth date and gender as stated on your government-issued ID.
  • A properly packed carry-on bag is just the ticket for a great flight experience. Given your flight to Contra Costa County is no quick hop, take enough snacks and activities to keep you busy. Something to read or listen to will help the hours pass.
  • Never mind what the season is at your destination, airplane cabins can get chilly. Carry an extra layer on your journey to stay warm and comfy.

How do I get cheap first-class/business deals to Contra Costa County?
There are ways of booking business or first-class airfares to Contra Costa County that won't burn a hole through your budget. Find a seat in the pointy end of the plane for less with these handy tips:

  • Being flexible isn't just for your yoga class. Have some room to move around your travel dates so you can pick up cheaper airfares when they pop up.
  • Many low-cost airlines nowadays have outstanding business-class seating without the pricey fees.
  • Take advantage of your airline's rewards program and use points to upgrade your seat. Alternatively, you can try bidding for an upgrade in an online auction.

What is the best time to go to Contra Costa County?
You'll have tons of fun whatever time of the year you decide to go to Contra Costa County, but May, June and August are the liveliest months. Want to fill your itinerary with loads of warm-weather adventures? Book your getaway close to June 20. This is when the summer season kicks off in the Northern Hemisphere. Expect the mercury to span between 55 ºF and 80 ºF during this time.

More to Explore

Fare, taxes & fees: Fares include all taxes and fees, except baggage fees. Rates shown reflect fares found by other Orbitz users over the past 7 days. Due to rapidly changing airline prices & seat availability, these fares may no longer be available.

Refunds/changes/cancellations: Itinerary changes, if permitted for the fare, will have a $30 service fee charged by Orbitz. Additional airline charges may apply.

Other conditions: Schedules, fares and rules are subject to change without notice. Seats are limited and may not be available on all flights/dates or in all markets. Lower fares may be available. Fares will not be honored retroactively or in exchange for any wholly/partially unused ticket. Tickets are non-transferable and non-refundable. Fare rules are provided for the selected itinerary before booking.