How long is the flight from Cardiff to San Francisco?

There are many flights that can get you from Cardiff to San Francisco in 45h 13m. Fly via Virgin Atlantic to get the fastest option. There are 5267 mi between Cardiff and San Francisco.

In terms of precipitation, rainfall in San Francisco 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 when rainfall is around 0.0 mm.

If weather is an important factor for your trip to San Francisco, 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).

What is the cheapest time of day to fly from CWL to SFO?

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Cardiff to San Francisco as you normally would.

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.

£678+ Cheap Flights from Cardiff to San Francisco

Cheap flight deals from Cardiff to San Francisco

Enter your travel dates to find the best prices.

Cheapest

Best

Last-minute

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 2 October 2026.

Sun 15/1110:20 -

2 stops44h 09m

Sun 22/1121:35 -

2 stops28h 10m

Deal found 1/10£678

Sat 14/1110:20 -

2 stops45h 13m

Sat 21/1117:53 -

2 stops55h 52m

Deal found 30/9£715

Sun 15/1110:20 -

1 stop33h 25m

Sun 22/1113:50 -

1 stop19h 10m

Deal found 1/10£740

Sat 14/1110:20 -

1 stop33h 25m

Sat 21/1113:50 -

1 stop19h 10m

Deal found 30/9£918

Sat 28/1110:20 -

2 stops33h 18m

Fri 4/1214:00 -

2 stops35h 50m

Deal found 29/9£1,760

Find flight deals from Cardiff to San Francisco

Round-trip from	£678

Virgin Atlantic
15/11-22/11
4 total stops
72h 19m total
Cardiff to San Francisco

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Use the filters below to find and compare flights from Cardiff to San Francisco that are best for you.

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Route

Depart

Return

Price

Cheapest return flight

CardiffSan Francisco

CWL Cardiff Wales - SFO San Francisco

CWLSFO

Cardiff Wales

Sat 14/11

10:20-23:33

2 stops45h 13m

San Francisco

Sat 21/11

17:53-09:45

2 stops55h 52m

£715

Fastest return journey

CardiffSan Francisco

CWL Cardiff Wales - SFO San Francisco

CWLSFO

Cardiff Wales

Sun 15/11

10:20-11:45

1 stop33h 25m

San Francisco

Sun 22/11

13:50-17:00

1 stop19h 10m

£740

CardiffSan Francisco

CWL Cardiff Wales - SFO San Francisco

CWLSFO

Cardiff Wales

Sat 14/11

17:30-11:45

1 stop26h 15m

San Francisco

Sat 21/11

17:53-17:00

2 stops39h 07m

£926

CardiffSan Francisco

CWL Cardiff Wales - SFO San Francisco

CWLSFO

Cardiff Wales

Sat 28/11

10:20-11:38

2 stops33h 18m

San Francisco

Fri 4/12

14:00-09:50

2 stops35h 50m

£1,760

CardiffSan Francisco

CWL Cardiff Wales - SFO San Francisco

CWLSFO

Cardiff Wales

Sat 28/11

10:20-11:45

1 stop33h 25m

San Francisco

Fri 4/12

13:50-17:00

1 stop19h 10m

£4,949

Flights are sorted by cheapest return flights first.

Deals found on 30/9

Sorted by cheapest first

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.

CWL-SFO

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

How long is the flight from Cardiff to San Francisco?
There are many flights that can get you from Cardiff to San Francisco in 45h 13m. Fly via Virgin Atlantic to get the fastest option. There are 5267 mi between Cardiff and San Francisco.
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.

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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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Cheap flights from Cardiff to San Francisco from £678

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 15/11. Fares are subject to change and may not be available on all flights or dates of travel.

Cheap flight deals from Cardiff to San Francisco

Cheapest flights from Cardiff to San FranciscoExplore 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 2 October 2026.

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 2 October 2026.

Best flights from Cardiff to San FranciscoDiscover carefully curated flight deals from Cardiff to San Francisco that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 2 October 2026.

Discover carefully curated flight deals from Cardiff to San Francisco that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 2 October 2026.

Last-minute flights from Cardiff to San FranciscoDiscover last-minute flight deals from Cardiff to San Francisco. Data last updated 2 October 2026 and is based on user searches.

Discover last-minute flight deals from Cardiff to San Francisco. Data last updated 2 October 2026 and is based on user searches.

Find flight deals from Cardiff to San Francisco

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Use the filters below to find and compare flights from Cardiff to San Francisco that are best for you.

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.

Related info for your journey

How long is the flight from Cardiff to San Francisco?

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

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

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

Travelling to a place near San Francisco?

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for Cardiff to San Francisco

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Complete your trip

Complete your trip to San Francisco by adding a car hire and/or hotel booking to your travel itinerary.

Direct flights to California

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Search flights from Cardiff to San Francisco by cabin class

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Cardiff and San Francisco flights

Browse other Cardiff and San Francisco flight options. Last updated on 2 October 2026.

Other flights from Cardiff

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Other flights to San Francisco

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Fly with Cheapflights

How does Cheapflights help users find flights from Cardiff to San Francisco?

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

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

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

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Travel Smart

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 2 October 2026.

Best flights from Cardiff to San Francisco
Discover carefully curated flight deals from Cardiff to San Francisco that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 2 October 2026.

Last-minute flights from Cardiff to San Francisco
Discover last-minute flight deals from Cardiff to San Francisco. Data last updated 2 October 2026 and is based on user searches.