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Cheap flights from Cardiff to San Francisco from £558

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 27/8. Fares are subject to change and may not be available on all flights or dates of travel.
CWL — SFO
20 juil. — 27 juil.1
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 15 juillet 2025.

Round-trip from

£558
Delta
  • Delta
  • 27/8-3/9
  • 4 total stops
  • 38h 45m 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 15 juillet 2025.

mer. 27/809:50CWL - SFO
2 stops20h 59mDelta
mer. 3/907:29SFO - CWL
2 stops17h 46mDelta
Deal found 13/7£558
mer. 27/817:15CWL - SFO
1 stop26h 30mVirgin Atlantic
mer. 3/907:00SFO - CWL
2 stops18h 15mVirgin Atlantic
Deal found 13/7£584
jeu. 28/809:50CWL - SFO
2 stops18h 16mKLM
jeu. 4/913:45SFO - CWL
1 stop35h 25mKLM
Deal found 14/7£588
jeu. 28/807:55CWL - SFO
3 stops23h 18mMultiple Airlines
jeu. 4/911:35SFO - CWL
2 stops16h 25mMultiple Airlines
Deal found 14/7£903
ven. 18/709:00CWL - SFO
2 stops36h 50mBritish Airways
ven. 25/719:20SFO - CWL
2 stops32h 10mBritish Airways
Deal found 13/7£1,437

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 15 juillet 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

mer. 27/8

09:50-22:49

2 stops20h 59m

San Francisco

mer. 3/9

07:29-09:15

2 stops17h 46m

£558

CardiffSan Francisco

CWL - SFO

CWLSFO

Cardiff Wales

mer. 27/8

17:15-11:45

1 stop26h 30m

San Francisco

mer. 3/9

07:00-09:15

2 stops18h 15m

£584

CardiffSan Francisco

CWL - SFO

CWLSFO

Cardiff Wales

jeu. 28/8

09:50-20:06

2 stops18h 16m

San Francisco

jeu. 4/9

13:45-09:10

1 stop35h 25m

£588

CardiffSan Francisco

CWL - SFO

CWLSFO

Cardiff Wales

jeu. 28/8

07:55-23:13

3 stops23h 18m

San Francisco

jeu. 4/9

11:35-12:00

2 stops16h 25m

£903

Flights are sorted by cheapest return flights first.

Deals found on 13/7

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.

Reviews of airlines servicing San Francisco

Get insights into the airlines that provide service to San Francisco. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to San Francisco. Reviews last updated 15 juillet 2025.
Read through reviews of airlines operating flights from Cardiff to San Francisco, such as Delta, KLM, andVirgin Atlantic. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.

Boarding

8.2

Crew

8.5

Food

7.3

Entertainment

7.9

Comfort

7.9

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
8.0
Very Good

Boarding

8.2

Crew

8.5

Food

7.3

Entertainment

7.9

Comfort

7.9

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Boarding

8.2

Crew

8.5

Food

7.3

Entertainment

7.9

Comfort

7.9

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Boarding

8.2

Crew

8.5

Food

7.3

Entertainment

7.9

Comfort

7.9

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

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.
  • What are the cheapest airlines flying from Cardiff to San Francisco round-trip?

    Our cheapest airline available from Cardiff to San Francisco is Delta. Our recent data shows that you can find tickets from as low as £558 on this airline. Additional options worth looking into are Virgin Atlantic and KLM, starting at £584 and £588 round-trip.

  • 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
Vallejo
Newark
South San Francisco
Bodega Bay
Pacific Grove
Union City

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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.

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