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$469+ Cheap flights from Cardiff (CWL) to San Francisco (SFO)

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 1/15. Fares are subject to change and may not be available on all flights or dates of travel.
CWL — SFO
ene. 11 — ene. 181
dom. 1/11
dom. 1/18
1 adult, Economy
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Cheap 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 diciembre 12, 2025.

This Mytrip deal was found by Cheapflights users on 12/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom. 12/215:30 pmCWL - SFO
3 stops29h 05mMultiple Airlines
jue. 1/14:40 pmSFO - CWL
2 stops21h 20mMultiple Airlines
Deal found 12/10$1,660
This ChecknFly deal was found by Cheapflights users on 12/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure ChecknFly is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom. 12/2110:15 amCWL - SFO
1 stop33h 35mKLM
jue. 1/11:55 pmSFO - CWL
1 stop18h 50mKLM
Deal found 12/10$1,805

Find 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 diciembre 12, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
1 star

Round-trip from

$790
(Expedia)

One-way from

$469
(Kiwi.com)
Provider with most accurate pricing for Cardiff Wales-San Francisco flight deals.
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Provider most trusted by Cheapflights users for Cardiff Wales-San Francisco flights.
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From Cardiff Wales to San Francisco
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One-way flight from Cardiff Wales to San Francisco
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Cheapflights Fare Finder

 
Customize 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 2,558,603 searches. Data last updated diciembre 12, 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

dom. 1/25

5:30 pm-3:58 pm

2 stops30h 28m

San Francisco

dom. 2/1

1:54 pm-4:55 pm

2 stops43h 01m

$790

CardiffSan Francisco

CWL - SFO

CWLSFO

Cardiff Wales

dom. 1/25

5:30 pm-2:35 pm

3 stops29h 05m

San Francisco

dom. 2/1

4:40 pm-11:05 pm

2 stops22h 25m

$992

CardiffSan Francisco

CWL - SFO

CWLSFO

Cardiff Wales

jue. 1/15

10:30 am-4:05 pm

3 stops37h 35m

$469

CardiffSan Francisco

CWL - SFO

CWLSFO

Cardiff Wales

vie. 1/16

4:05 pm-2:45 pm

3 stops30h 40m

$507

CardiffSan Francisco

CWL - SFO

CWLSFO

Cardiff Wales

mar. 1/13

4:45 pm-3:35 pm

2 stops30h 50m

$695

CardiffSan Francisco

CWL - SFO

CWLSFO

Cardiff Wales

mar. 1/6

8:55 pm-9:08 pm

3 stops56h 13m

$1,027

CardiffSan Francisco

CWL - SFO

CWLSFO

Cardiff Wales

mar. 1/6

10:20 am-11:50 am

1 stop33h 30m

$1,511

CardiffSan Francisco

CWL - SFO

CWLSFO

Cardiff Wales

mar. 1/13

5:25 pm-11:50 am

1 stop26h 25m

$1,511

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/10

  • Most accurate provider: When it comes to deals on Cardiff-San Francisco flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Cardiff-San Francisco flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Cardiff-San Francisco flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Cardiff-San Francisco flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Cardiff-San Francisco flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

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 round-trip 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 $571). Flying from Cardiff to San Francisco in June is currently the most expensive (average of $959). 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?

    A quick flight from Cardiff to San Francisco can take about 30h 28m. KLM provides one of the quickest options available for as low as $790. The distance from Cardiff to San Francisco is about 5267 mi.

  • 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 vacation 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 $571). Flying from Cardiff to San Francisco in June is currently the most expensive (average of $959). 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

Traveling to a place near San Francisco?

Book flights to San Francisco if you plan to visit one of these locations
Roseville
South San Francisco
Santa Cruz
Livermore
Turlock
Manteca
Watsonville
Sunnyvale
Santa Clara
San Bruno
Redwood City
Daly City
Vallejo
Hollister
Foster City
Union City
Davis
San Ramon
Burlingame
Milpitas

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