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Cheap flights from Cardiff to San Francisco Bay Area from £764

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 6/4. Fares are subject to change and may not be available on all flights or dates of travel.
CWL — SFO
26 Feb — 5 Mar1
1 adult

Cheap 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 21 February 2025.

Round-trip from

£764

Popular in

August

Cheapest in

March

Average price

£560
KLM
  • KLM
  • 6/4-13/4
  • 2 total stops
  • 62h 00m total
  • Cardiff to San Francisco Bay Area
Search Deals
Highest demand for flights based on searches. 39% potential increase in price (£431 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 10% potential price decrease (£64 potential savings vs. average return price).
Search Deals
Average for round-trip flights in February 2025
Search Deals

Find flight deals from Cardiff to San Francisco Bay Area

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 21 February 2025.

Sun 6/417:15CWL - SFO
1 stop26h 30mKLM
Sun 13/413:45SFO - CWL
1 stop35h 30mKLM
Deal found 20/2£764
Sun 6/409:50CWL - SFO
2 stops44h 51mVirgin Atlantic
Sun 13/407:25SFO - CWL
2 stops17h 50mVirgin Atlantic
Deal found 20/2£784
Sun 6/411:00CWL - SFO
3 stops44h 57mMultiple Airlines
Sun 13/411:40SFO - CWL
2 stops17h 05mMultiple Airlines
Deal found 20/2£831

Find flights from Cardiff to San Francisco Bay Area within your budget

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 21 February 2025.

Fly from

Cardiff

Fly to

San Francisco Bay Area

Route

Depart

Return

Price

CardiffSan Francisco

CWL - SFO

CWLSFO

Cardiff Wales

Sun 6/4

17:15-11:45

1 stop26h 30m

San Francisco

Sun 13/4

13:45-09:15

1 stop35h 30m

£764

CardiffSan Francisco

CWL - SFO

CWLSFO

Cardiff Wales

Sun 6/4

09:50-22:41

2 stops44h 51m

San Francisco

Sun 13/4

07:25-09:15

2 stops17h 50m

£784

CardiffSan Francisco

CWL - SFO

CWLSFO

Cardiff Wales

Sun 6/4

11:00-23:57

3 stops44h 57m

San Francisco

Sun 13/4

11:40-12:45

2 stops17h 05m

£831

Flights are sorted by cheapest return flights first.

Deals found on 20/2

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.

Travel insights for flights from Cardiff to San Francisco Bay Area

Get recent, data-driven insights about flights from Cardiff to San Francisco Bay Area including ideal travel times, pricing trends, and more.

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

Currently, February is the cheapest month in which you can book a flight from Cardiff to San Francisco Bay Area (average of £538). Flying from Cardiff to San Francisco Bay Area 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.

Rainfall in San Francisco Bay Area by month

Plan your trip to San Francisco Bay Area by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in San Francisco Bay Area ranges from 0.0 - 112.0 inches per month. January is typically the wettest month, when rainfall can reach 112.0 mm. July is typically the driest time to visit San Francisco Bay Area when rainfall is around 0.0 mm.

Temperature in San Francisco Bay Area by month

Plan your trip to San Francisco Bay Area by taking into account the average temperature totals by month.

If weather is an important factor for your trip to San Francisco Bay Area, use this chart to help with planning. For those seeking warmer temperatures, September is the ideal time of year to visit, when temperatures reach an average of 17.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 11.0 C).

Reviews of airlines servicing San Francisco Bay Area

Get insights into the airlines that provide service to San Francisco Bay Area. 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 Bay Area. Reviews last updated 21 February 2025.
KLM
7.8
Good
1,333 reviews
Check prices

Food

7.3

Boarding

7.8

Overall

7.8

Entertainment

7.2

Comfort

7.7

Crew

8.4

Reviews

1 / 20

8.0
Excellent

Anonymous,Dec 2024

YWG - YYZ

I could not select a seat prior to check in as systems not integrated. Different PNRs should be on reservation which would make process easier.

KLM
7.8
Good
1,333 reviews
KLM
7.8
Good
1,333 reviews
Check prices

Food

7.3

Boarding

7.8

Overall

7.8

Entertainment

7.2

Comfort

7.7

Crew

8.4

Reviews

1 / 20

8.0
Excellent

Anonymous,Dec 2024

YWG - YYZ

I could not select a seat prior to check in as systems not integrated. Different PNRs should be on reservation which would make process easier.

Virgin Atlantic
7.5
Good
654 reviews
KLM
7.8
Good
1,333 reviews
Check prices

Food

7.3

Boarding

7.8

Overall

7.8

Entertainment

7.2

Comfort

7.7

Crew

8.4

Reviews

1 / 20

8.0
Excellent

Anonymous,Dec 2024

YWG - YYZ

I could not select a seat prior to check in as systems not integrated. Different PNRs should be on reservation which would make process easier.

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.

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

    Most travelers choose Cardiff Wales - San Francisco, Cardiff Wales - San Jose or Cardiff Wales - Oakland 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.

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

    Currently, February is the cheapest month in which you can book a flight from Cardiff to San Francisco Bay Area (average of £538). Flying from Cardiff to San Francisco Bay Area 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

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

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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.

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