Cheap flights from Cardiff to San Francisco from £700

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 11/10. Fares are subject to change and may not be available on all flights or dates of travel.
CWL — SFO
3 Sep — 10 Sep1
1 adult

Cheap flight deals from Cardiff to San Francisco

Discover tips and strategies to find the most affordable flight options for your journey from Cardiff (CWL) to San Francisco (SFO). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated 29 August 2025.

Round-trip from

£700
Air France
  • Air France
  • 11/10-18/10
  • 3 total stops
  • 51h 10m total
  • Cardiff to San Francisco

Find flight deals from Cardiff to San Francisco

Cheapest flights from Cardiff to San Francisco
Explore the most affordable flight options available from Cardiff to San Francisco. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 29 August 2025.

Sat 11/1017:35CWL - SFO
2 stops32h 10mAir France
Sat 18/1013:45SFO - CWL
1 stop19h 00mAir France
Deal found 27/8£700
Sat 11/1009:45CWL - SFO
2 stops20h 50mDelta
Fri 17/1000:35SFO - CWL
2 stops24h 40mDelta
Deal found 27/8£744
Sat 11/1017:35CWL - SFO
1 stop26h 10mKLM
Sat 18/1013:45SFO - CWL
1 stop19h 00mKLM
Deal found 27/8£769
Sat 11/1009:00CWL - SFO
3 stops32h 30mMultiple Airlines
Sat 18/1007:30SFO - CWL
3 stops19h 05mMultiple Airlines
Deal found 27/8£875
Fri 19/1217:25CWL - SFO
2 stops34h 41mVirgin Atlantic
Fri 2/119:17SFO - CWL
2 stops54h 33mVirgin Atlantic
Deal found 27/8£1,081
Fri 19/1222:25CWL - SFO
1 stop25h 10mMultiple Airlines
Fri 2/117:20SFO - CWL
1 stop22h 00mMultiple Airlines
Deal found 27/8£1,141
Fri 19/1217:25CWL - SFO
1 stop26h 25mKLM
Fri 2/107:00SFO - CWL
2 stops18h 50mKLM
Deal found 27/8£1,164

Cheapflights Fare Finder

 
Customise your flight search to find flights from Cardiff to San Francisco 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 29 August 2025.
Use the filters below to find and compare flights from Cardiff to San Francisco that are best for you.

Fly from

Cardiff

Fly to

San Francisco

Route

Depart

Return

Price

CardiffSan Francisco

CWL - SFO

CWLSFO

Cardiff Wales

Sat 11/10

17:35-17:45

2 stops32h 10m

San Francisco

Sat 18/10

11:25-16:45

2 stops21h 20m

£700

CardiffSan Francisco

CWL - SFO

CWLSFO

Cardiff Wales

Sat 11/10

09:45-22:35

2 stops20h 50m

San Francisco

Fri 17/10

00:35-09:15

2 stops24h 40m

£744

CardiffSan Francisco

CWL - SFO

CWLSFO

Cardiff Wales

Sat 11/10

17:35-11:45

1 stop26h 10m

San Francisco

Sat 18/10

13:45-16:45

1 stop19h 00m

£769

CardiffSan Francisco

CWL - SFO

CWLSFO

Cardiff Wales

Sat 11/10

09:00-09:30

3 stops32h 30m

San Francisco

Sat 18/10

07:30-10:35

3 stops19h 05m

£875

CardiffSan Francisco

CWL - SFO

CWLSFO

Cardiff Wales

Fri 19/12

17:25-20:06

2 stops34h 41m

San Francisco

Fri 2/1

19:17-09:50

2 stops54h 33m

£1,081

CardiffSan Francisco

CWL - SFO

CWLSFO

Cardiff Wales

Fri 19/12

22:25-15:35

1 stop25h 10m

San Francisco

Fri 2/1

17:20-23:20

1 stop22h 00m

£1,141

CardiffSan Francisco

CWL - SFO

CWLSFO

Cardiff Wales

Fri 19/12

17:25-11:50

1 stop26h 25m

San Francisco

Fri 2/1

07:00-09:50

2 stops18h 50m

£1,164

Flights are sorted by cheapest return flights first.

Deals found on 27/8

Best time to book a flight from Cardiff to San Francisco

Have a flexible travel schedule? Discover the best time to fly to San Francisco 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

What is the cheapest month to book a flight from Cardiff to San Francisco?

Currently, February is the cheapest month in which you can book a flight from Cardiff to San Francisco (average of £538). Flying from Cardiff to San Francisco in July is currently the most expensive (average of £803). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

Related info for your journey

Find useful and relevant information for your journey from Cardiff to San Francisco. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
  • How long is the flight from Cardiff to San Francisco?

    There are many flights that can get you from Cardiff to San Francisco in 20h 50m. Fly via Air France, Delta, or KLM to get the fastest option. There are 5267 mi between Cardiff and San Francisco. Both multi-stop and direct flights can be found to your destination and back.

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

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

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

    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.

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

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

  • What is the cheapest month to book a flight from Cardiff to San Francisco?

    Currently, February is the cheapest month in which you can book a flight from Cardiff to San Francisco (average of £538). Flying from Cardiff to San Francisco in July is currently the most expensive (average of £803). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Travelling to a place near San Francisco?

Book flights to San Francisco if you plan to visit one of these locations
Santa Cruz
Newark
South San Francisco
Bodega Bay
Pacific Grove
Union City

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?

Cheapflights makes it easy to find Cardiff to San Francisco 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?

By finding flights from multiple airlines and providers at completely no cost, Cheapflights helps millions of users like you annually find the best flights to San Francisco from Cardiff.

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

Certainly. Search results for flights to San Francisco from Cardiff shown to you on Cheapflights can be narrowed down with different useful search filters, which includes flexible booking options.

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

Yes, Cheapflights offers price alerts on Cardiff to San Francisco flights so you can book your travel at the perfect time. Price Alerts can be enabled by clicking the bell icon next to the flight deals above and providing your email address where you want to receive the alerts.

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.