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

Currently, July is the cheapest month in which you can book a flight from San Francisco to Cardiff (average of £169). Flying from San Francisco to Cardiff in December is currently the most expensive (average of £263). 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.

In terms of precipitation, rainfall in Cardiff ranges from 50.0 - 90.0 inches per month. January is typically the wettest month, when rainfall can reach 90.0 mm. April is typically the driest time to visit Cardiff when rainfall is around 50.0 mm.

If weather is an important factor for your trip to Cardiff, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 18.0 C. Travellers hoping to avoid the cold should look outside of December, when temperatures are typically at their lowest (around 4.0 C).

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

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

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.

£671+ Flights from San Francisco to Cardiff

Cheap flight deals from San Francisco to Cardiff

Round-trip from	£671

Virgin Atlantic
27/9-4/10
2 total stops
45h 10m total
San Francisco to Cardiff

Search Deals

Find flight deals from San Francisco to Cardiff

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 15 August 2025.

Sat 27/913:45SFO - CWL

1 stop19h 00mVirgin Atlantic

Sat 4/1017:35CWL - SFO

1 stop26h 10mVirgin Atlantic

Deal found 13/8£671

Sat 27/906:45SFO - CWL

2 stops18h 30mKLM

Sat 4/1017:35CWL - SFO

1 stop26h 10mKLM

Deal found 13/8£692

Mon 29/1213:55SFO - CWL

1 stop19h 00mKLM

Tue 6/117:15CWL - SFO

2 stops28h 20mKLM

Deal found 13/8£906

Fri 26/900:45SFO - CWL

2 stops24h 30mDelta

Sat 4/1009:45CWL - SFO

2 stops20h 32mDelta

Deal found 13/8£970

Sat 27/907:30SFO - CWL

3 stops28h 40mMultiple Airlines

Sat 4/1009:45CWL - SFO

2 stops21h 23mMultiple Airlines

Deal found 13/8£1,705

Mon 29/1220:40SFO - CWL

3 stops30h 50mMultiple Airlines

Tue 6/112:00CWL - SFO

3 stops29h 50mMultiple Airlines

Deal found 13/8£2,792

Best flights from San Francisco to Cardiff
Discover carefully curated flight deals from San Francisco to Cardiff that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 15 August 2025.

Sat 27/913:45SFO - CWL

1 stop19h 00mVirgin Atlantic

Sat 4/1017:35CWL - SFO

1 stop26h 10mVirgin Atlantic

Deal found 13/8£671

Wed 11/213:55SFO - CWL

1 stop19h 00mKLM

Tue 17/210:20CWL - SFO

1 stop33h 30mKLM

Deal found 12/8£690

Wed 11/208:55SFO - CWL

2 stops24h 00mDelta

Tue 17/210:20CWL - SFO

2 stops20h 27mDelta

Deal found 12/8£749

Sat 27/906:45SFO - CWL

2 stops18h 30mKLM

Sat 4/1017:35CWL - SFO

1 stop26h 10mKLM

Deal found 13/8£692

Fri 26/900:45SFO - CWL

2 stops24h 30mDelta

Sat 4/1009:45CWL - SFO

2 stops20h 32mDelta

Deal found 13/8£970

Mon 29/1213:55SFO - CWL

1 stop19h 00mKLM

Tue 6/117:15CWL - SFO

2 stops28h 20mKLM

Deal found 13/8£906

Last-minute flights from San Francisco to Cardiff
Discover last-minute flight deals from San Francisco to Cardiff. Data last updated 15 August 2025 and is based on user searches.

Fri 26/900:45SFO - CWL

2 stops24h 30mDelta

Sat 4/1009:45CWL - SFO

2 stops20h 32mDelta

Deal found 13/8£970

Sat 27/913:45SFO - CWL

1 stop19h 00mVirgin Atlantic

Sat 4/1017:35CWL - SFO

1 stop26h 10mVirgin Atlantic

Deal found 13/8£671

Sat 27/906:45SFO - CWL

2 stops18h 30mKLM

Sat 4/1017:35CWL - SFO

1 stop26h 10mKLM

Deal found 13/8£692

Sat 27/907:30SFO - CWL

3 stops28h 40mMultiple Airlines

Sat 4/1009:45CWL - SFO

2 stops21h 23mMultiple Airlines

Deal found 13/8£1,705

Cheapflights Fare Finder

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

San FranciscoCardiff

SFO - CWL

SFOCWL

San Francisco

Sat 27/9

13:45-16:45

1 stop19h 00m

Cardiff Wales

Sat 4/10

17:35-11:45

1 stop26h 10m

£671

San FranciscoCardiff

SFO - CWL

SFOCWL

San Francisco

Wed 11/2

13:55-16:55

1 stop19h 00m

Cardiff Wales

Tue 17/2

10:20-11:50

1 stop33h 30m

£690

San FranciscoCardiff

SFO - CWL

SFOCWL

San Francisco

Sat 27/9

06:45-09:15

2 stops18h 30m

Cardiff Wales

Sat 4/10

17:35-11:45

1 stop26h 10m

£692

San FranciscoCardiff

SFO - CWL

SFOCWL

San Francisco

Wed 11/2

08:55-16:55

2 stops24h 00m

Cardiff Wales

Tue 17/2

10:20-22:47

2 stops20h 27m

£749

San FranciscoCardiff

SFO - CWL

SFOCWL

San Francisco

Mon 29/12

13:55-16:55

1 stop19h 00m

Cardiff Wales

Tue 6/1

17:15-13:35

2 stops28h 20m

£906

San FranciscoCardiff

SFO - CWL

SFOCWL

San Francisco

Fri 26/9

00:45-09:15

2 stops24h 30m

Cardiff Wales

Sat 4/10

09:45-22:17

2 stops20h 32m

£970

Flights are sorted by cheapest return flights first.

Deals found on 13/8

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

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.
What is the cheapest month to book a flight from San Francisco to Cardiff?
Currently, July is the cheapest month in which you can book a flight from San Francisco to Cardiff (average of £169). Flying from San Francisco to Cardiff in December is currently the most expensive (average of £263). 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.

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Barry

Bridgend

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Alternative routes for San Francisco to Cardiff

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

When you search for this flight from San Francisco to Cardiff, Cheapflights searches on 900+ travel sites to save you time finding great flight deals online. Additionally, we offer filter features so you can choose a preferred cabin class or airline, see different price ranges, and much more so you can book the flight for you.

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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Cheap flights from San Francisco to Cardiff from £671

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 27/9. Fares are subject to change and may not be available on all flights or dates of travel.

Cheap flight deals from San Francisco to Cardiff

Round-trip from

Find flight deals from San Francisco to Cardiff

Cheapest flights from San Francisco to CardiffExplore 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 15 August 2025.

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 15 August 2025.

Cheapflights Fare Finder

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

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.

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.

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

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

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

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

Travelling to a place near Cardiff?

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for San Francisco to Cardiff

See prices for flight routes from nearby airports that may be better suited for you.

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.

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

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

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

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

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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 15 August 2025.