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Cheap flights from San Francisco to Cardiff from £257

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 5/8. Fares are subject to change and may not be available on all flights or dates of travel.
SFO — CWL
29 Jun — 6 Jul1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from San Francisco to Cardiff

Enter your travel dates to find the best prices.

Cheapest flights from San Francisco to Cardiff
Explore the most affordable flight options available from San Francisco to Cardiff. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 30 May 2026.

Tue 1/917:40
SFO
-
CWL
1 stop21h 45m
Multiple Airlines
Fri 11/922:45
CWL
-
SFO
2 stops25h 35m
Multiple Airlines
Deal found 26/5£732
Tue 1/914:21
SFO
-
CWL
2 stops18h 24m
Delta
Fri 11/909:45
CWL
-
SFO
2 stops20h 49m
Delta
Deal found 26/5£760
Thu 10/913:45
SFO
-
CWL
1 stop19h 00m
KLM
Tue 15/917:15
CWL
-
SFO
1 stop26h 30m
KLM
Deal found 28/5£788
Thu 10/906:00
SFO
-
CWL
2 stops19h 15m
Virgin Atlantic
Tue 15/917:15
CWL
-
SFO
1 stop26h 30m
Virgin Atlantic
Deal found 28/5£791
Thu 10/919:35
SFO
-
CWL
2 stops30h 40m
Multiple Airlines
Tue 15/923:15
CWL
-
SFO
3 stops30h 40m
Multiple Airlines
Deal found 28/5£797
Sun 12/717:40
SFO
-
CWL
1 stop20h 05m
Multiple Airlines
Sun 19/721:45
CWL
-
SFO
2 stops46h 35m
Multiple Airlines
Deal found 28/5£854
Wed 8/714:19
SFO
-
CWL
2 stops18h 26m
Multiple Airlines
Fri 17/709:45
CWL
-
SFO
2 stops19h 10m
Multiple Airlines
Deal found 27/5£898

Find flight deals from San Francisco to Cardiff

Discover tips and strategies to find the most affordable flight options for your journey from San Francisco (SFO) to Cardiff (CWL). 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 30 May 2026.

Round-trip from

£732

One-way from

£257
1/9-11/9
  • 1/9-11/9
  • 3 total stops
  • 47h 20m total
  • San Francisco to Cardiff
Search Deals
WestJet
  • WestJet
  • 5/8
  • 3 total stops
  • 20h 15m total
  • San Francisco to Cardiff
Search Deals

Cheapflights Fare Finder

 
Customise your flight search to find flights from San Francisco to Cardiff 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 30 May 2026.
Use the filters below to find and compare flights from San Francisco to Cardiff that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight
Fastest return journey

San FranciscoCardiff

SFO - CWL

SFOCWL

San Francisco

Tue 1/9

14:21-16:45

2 stops18h 24m

Cardiff Wales

Fri 11/9

09:45-22:34

2 stops20h 49m

£760

San FranciscoCardiff

SFO - CWL

SFOCWL

San Francisco

Thu 10/9

13:45-16:45

1 stop19h 00m

Cardiff Wales

Tue 15/9

17:15-11:45

1 stop26h 30m

£788

San FranciscoCardiff

SFO - CWL

SFOCWL

San Francisco

Thu 10/9

06:00-09:15

2 stops19h 15m

Cardiff Wales

Tue 15/9

17:15-11:45

1 stop26h 30m

£791

San FranciscoCardiff

SFO - CWL

SFOCWL

San Francisco

Thu 10/9

07:10-10:15

3 stops43h 05m

Cardiff Wales

Tue 15/9

23:15-21:55

3 stops30h 40m

£817

San FranciscoCardiff

SFO - CWL

SFOCWL

San Francisco

Sun 12/7

17:40-21:45

1 stop20h 05m

Cardiff Wales

Sun 19/7

21:45-12:20

2 stops46h 35m

£854

San FranciscoCardiff

SFO - CWL

SFOCWL

San Francisco

Tue 1/9

19:30-10:15

3 stops30h 45m

Cardiff Wales

Fri 11/9

22:45-17:35

2 stops26h 50m

£857

San FranciscoCardiff

SFO - CWL

SFOCWL

San Francisco

Wed 8/7

13:45-09:15

1 stop35h 30m

Cardiff Wales

Fri 17/7

09:45-20:55

2 stops19h 10m

£926

San FranciscoCardiff

SFO - CWL

SFOCWL

San Francisco

Fri 10/7

10:35-17:05

2 stops22h 30m

Cardiff Wales

Fri 17/7

09:45-00:33

2 stops22h 48m

£977

San FranciscoCardiff

SFO - CWL

SFOCWL

San Francisco

Sun 23/8

06:00-10:15

2 stops20h 15m

Cardiff Wales

Thu 27/8

11:35-21:55

2 stops42h 20m

£1,052

San FranciscoCardiff

SFO - CWL

SFOCWL

San Francisco

Sun 12/7

13:45-16:45

1 stop19h 00m

Cardiff Wales

Sun 19/7

17:15-11:45

1 stop26h 30m

£1,087

Flights are sorted by cheapest return flights first.

Deals found on 27/5

Showing 1-10 of 21 resultsSorted by cheapest first
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Best time to book a flight from San Francisco to Cardiff

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

Related info for your journey

Find useful and relevant information for your journey from San Francisco to Cardiff. 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 San Francisco to Cardiff?

    Airlines like Delta, KLM, and Virgin Atlantic fly from San Francisco to Cardiff in about 18h 24m. The time it takes to get you to your destination can typically vary by up to 51m. Airlines will cover a distance of 5267 mi. This flight may include one or multiple stops.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from San Francisco to Cardiff 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

Travelling to a place near Cardiff?

Book flights to Cardiff if you plan to visit one of these locations
Barry
Bridgend

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

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 Cardiff from San Francisco.

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

Users can book flights with no change fees policies with our dedicated filters. Book flights from San Francisco to Cardiff flexibly with Cheapflights today.

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