Find flights
When to book
FAQs

Cheap flights from Cardiff to San Francisco Bay Area from £426

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 12/10. Fares are subject to change and may not be available on all flights or dates of travel.
CWL — SFO
19 Jun — 26 Jun1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Cardiff to San Francisco Bay Area

Enter your travel dates to find the best prices.

Cheapest flights from Cardiff to San Francisco Bay Area
Explore the most affordable flight options available from Cardiff to San Francisco Bay Area. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 20 May 2026.

Mon 15/611:35
CWL
-
SFO
3 stops32h 25m
WestJet
Wed 24/606:00
SFO
-
CWL
3 stops20h 15m
WestJet
Deal found 16/5£679
Mon 15/611:35
CWL
-
SFO
1 stop31h 15m
Multiple Airlines
Wed 24/606:35
SFO
-
CWL
2 stops19h 40m
Multiple Airlines
Deal found 18/5£806
Mon 15/609:45
CWL
-
SFO
2 stops23h 14m
Delta
Wed 24/606:00
SFO
-
CWL
2 stops19h 15m
Delta
Deal found 18/5£809
Mon 15/617:15
CWL
-
SFO
1 stop26h 30m
Air France
Wed 24/613:45
SFO
-
CWL
1 stop19h 00m
Air France
Deal found 18/5£866

Find flight deals from Cardiff to San Francisco Bay Area

Keep the following information in mind while searching for Cardiff to San Francisco Bay Area flight deals. Data was last updated 20 May 2026.

Round-trip from

£679

One-way from

£426
WestJet
  • WestJet
  • 15/6-24/6
  • 6 total stops
  • 52h 40m total
  • Cardiff to San Francisco Bay Area
Search Deals
12/10
  • 12/10
  • 3 total stops
  • 48h 25m total
  • Cardiff to San Francisco Bay Area
Search Deals

Cheapflights Fare Finder

 
Customise your flight search to find flights from Cardiff to San Francisco Bay Area that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 858,174 searches. Data last updated 20 May 2026.
Use the filters below to find and compare flights from Cardiff to San Francisco Bay Area that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

CardiffSan Francisco

CWL - SFO

CWLSFO

Cardiff Wales

Mon 15/6

11:35-12:00

3 stops32h 25m

San Francisco

Wed 24/6

06:00-10:15

3 stops20h 15m

£679
Fastest return journey

CardiffSan Francisco

CWL - SFO

CWLSFO

Cardiff Wales

Mon 15/6

09:45-00:59

2 stops23h 14m

San Francisco

Wed 24/6

06:00-09:15

2 stops19h 15m

£809

CardiffSan Francisco

CWL - SFO

CWLSFO

Cardiff Wales

Mon 15/6

11:35-12:00

2 stops32h 25m

San Francisco

Wed 24/6

06:00-10:15

2 stops20h 15m

£814

CardiffSan Francisco

CWL - SFO

CWLSFO

Cardiff Wales

Mon 15/6

17:15-11:45

1 stop26h 30m

San Francisco

Wed 24/6

13:45-16:45

1 stop19h 00m

£912
Cheapest one-way
Fastest single journey

CardiffSan Francisco

CWL - SFO

CWLSFO

Cardiff Wales

Mon 12/10

22:10-14:35

3 stops48h 25m

£426

Flights are sorted by cheapest return flights first.

Deals found on 16/5

Sorted by cheapest first

Best time to book a flight from Cardiff to San Francisco Bay Area

Have a flexible travel schedule? Discover the best time to fly to San Francisco Bay Area from Cardiff with our price prediction graph.
Estimated return price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Cardiff to San Francisco Bay Area
No data available for this route at this time. Please check back soon.

Related info for your journey

Find useful and relevant information for your journey from Cardiff to San Francisco Bay Area. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly from for flights from Cardiff to San Francisco Bay Area?

    For a flight from Cardiff to San Francisco Bay Area, you will be flying from Cardiff Wales. Cardiff Wales (CWL) is just 9.1 mi from the center of the city.

  • How long is the flight from Cardiff to San Francisco Bay Area?

    For as low as £809, WestJet can have you in San Francisco Bay Area from Cardiff in 23h 14m. There are 5267 mi between Cardiff and San Francisco Bay Area. When browsing for deals, the options you’ll see will be for both direct flights and flights with stops.

  • What are the most popular routes from Cardiff to San Francisco Bay Area?

    Most travelers choose Cardiff Wales - San Francisco, Cardiff Wales - Oakland or Cardiff Wales - San Jose when deciding on the best route from Cardiff to San Francisco Bay Area.

  • Can I find deals for flights from Cardiff to San Francisco Bay Area that include hotel bookings?

    Yes. In addition to deals on Cardiff to San Francisco Bay Area flights, Cheapflights offers holiday packages that include both flights and hotel.

  • How can I find direct flights from Cardiff to San Francisco Bay Area?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Cardiff to San Francisco Bay Area.

  • Can I find deals for business class flights from Cardiff to San Francisco Bay Area?

    Yes. Cheapflights offers flight deals from Cardiff to San Francisco Bay Area by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights from Cardiff to San Francisco Bay Area?

Cheapflights makes it easy to find Cardiff to San Francisco Bay Area flights by helping our users search from 900+ travel sites for deals. We also provide you with filters for cabin, price, airline, airports, number of stops, and many more to narrow down that perfect flight.

Why should you use Cheapflights to find cheap flight tickets from Cardiff to San Francisco Bay Area?

Cheapflights simply makes it quick and affordable to book flights from Cardiff to San Francisco Bay Area by bringing together all flight options from hundreds of airlines and agencies online — and put it in one place for you to choose from. Plus, Cheapflights is 100% free to use for all.

Can Cheapflights find flights from Cardiff to San Francisco Bay Area with no change fees?

Cheapflights does show flights with no change fees to all users. To see these options for flights from Cardiff to San Francisco Bay Area, users can toggle the no change fees filter when performing a flight search.

Can Cheapflights notify me if prices for flights from Cardiff to San Francisco Bay Area become cheaper?

Yes, and it’s super simple to set up. Click the bell icon next to the flight deals above and provide a valid email address to enable Price Alerts. That’s it!

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.