Which airlines fly to San Francisco?

KLM, Virgin Atlantic and Aer Lingus are the top three most popular airlines that fly to San Francisco from Cardiff according to our data. KLM is the first choice among our users, with 57% of people opting to fly with this airline when travelling to San Francisco. Keep in mind that there are 4 different airlines that fly to San Francisco on a routine basis, so you have a few additional options to choose from.

When did momondo last update prices for flights from Cardiff Wales Airport to San Francisco Airport?

Prices for flights from Cardiff Wales Airport to San Francisco Airport refresh daily.

How old do you have to be to fly from Cardiff Wales Airport to San Francisco Airport?

Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Cardiff Wales Airport to San Francisco Airport.

What documentation or ID do you need to fly to San Francisco Airport?

The necessary travel and health documents for your San Francisco Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

£524 Cheap Flights from Cardiff to San Francisco in 2025/26

1 adult

0 bags

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Find the cheapest flights from Cardiff to San Francisco

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10:20 - 23:13CWL-SFO

20h 53m2 stops

07:00 - 09:50SFO-CWL

18h 50m2 stops

£617Delta

Find Deal

Thu, 4 Dec - Thu, 11 Dec

10:20 - 11:50CWL-SFO

33h 30m1 stop

05:50 - 09:50SFO-CWL

44h 00m2 stops

£621Virgin Atlantic

Find Deal

Thu, 4 Dec - Thu, 11 Dec

10:20 - 11:50CWL-SFO

33h 30m1 stop

13:55 - 16:45SFO-CWL

18h 50m1 stop

£647Multiple Airlines

Find Deal

Thu, 4 Dec - Thu, 11 Dec

17:25 - 16:05CWL-SFO

30h 40m3 stops

16:40 - 22:00SFO-CWL

21h 20m2 stops

£829Multiple Airlines

Find Deal

Thu, 4 Dec - Thu, 11 Dec

10:20 - 12:50CWL-SFO

33h 30m1 stop

15:00 - 16:45SFO-CWL

17h 45m2 stops

£835Delta

Find Deal

Thu, 26 Mar - Mon, 30 Mar

10:20 - 12:50CWL-SFO

33h 30m1 stop

13:45 - 16:45SFO-CWL

19h 00m1 stop

£836Virgin Atlantic

Find Deal

Thu, 26 Mar - Mon, 30 Mar

10:20 - 23:15CWL-SFO

19h 55m2 stops

00:40 - 09:15SFO-CWL

24h 35m2 stops

£839Delta

Find Deal

Thu, 26 Mar - Sun, 29 Mar

10:20 - 23:15CWL-SFO

19h 55m2 stops

23:55 - 16:45SFO-CWL

32h 50m2 stops

£840Delta

Find Deal

Thu, 26 Mar - Mon, 30 Mar

10:20 - 22:47CWL-SFO

19h 27m2 stops

00:40 - 09:15SFO-CWL

24h 35m2 stops

£956Delta

Find Deal

Thu, 26 Mar - Sun, 29 Mar

10:20 - 23:15CWL-SFO

19h 55m2 stops

00:40 - 09:15SFO-CWL

24h 35m2 stops

£1,227Delta

Find Deal

Thu, 26 Mar - Sun, 29 Mar

Delta flights from Cardiff to San Francisco

Our best Delta deals on Cardiff to San Francisco flight tickets

Delta

4 Dec

CWL10:20Cardiff Wales

20h 53m

2 stops

SFO23:13San Francisco

11 Dec

SFO07:00San Francisco

18h 50m

2 stops

CWL09:50Cardiff Wales

£617

Find similar

Delta

26 Mar

CWL10:20Cardiff Wales

33h 30m

1 stop

SFO12:50San Francisco

30 Mar

SFO15:00San Francisco

17h 45m

2 stops

CWL16:45Cardiff Wales

£835

Find similar

Delta

26 Mar

CWL10:20Cardiff Wales

19h 55m

2 stops

SFO23:15San Francisco

29 Mar

SFO00:40San Francisco

24h 35m

2 stops

CWL09:15Cardiff Wales

£839

Find similar

Virgin Atlantic flights from Cardiff to San Francisco

Our best Virgin Atlantic deals on Cardiff to San Francisco flight tickets

Virgin Atlantic

4 Dec

CWL10:20Cardiff Wales

33h 30m

1 stop

SFO11:50San Francisco

11 Dec

SFO05:50San Francisco

44h 00m

2 stops

CWL09:50Cardiff Wales

£621

Find similar

Virgin Atlantic

26 Mar

CWL10:20Cardiff Wales

33h 30m

1 stop

SFO12:50San Francisco

30 Mar

SFO13:45San Francisco

19h 00m

1 stop

CWL16:45Cardiff Wales

£836

Find similar

Fly from

Fly to

Route

Depart

Return

Price

CardiffSan Francisco

CWL - SFO

CWLSFO

Cardiff Wales

Thu 4/12

10:20-23:13

2 stops20h 53m

San Francisco

Thu 11/12

07:00-09:50

2 stops18h 50m

£617

CardiffSan Francisco

CWL - SFO

CWLSFO

Cardiff Wales

Thu 4/12

10:20-11:50

1 stop33h 30m

San Francisco

Thu 11/12

05:50-09:50

2 stops44h 00m

£621

CardiffSan Francisco

CWL - SFO

CWLSFO

Cardiff Wales

Thu 4/12

10:20-11:50

1 stop33h 30m

San Francisco

Thu 11/12

13:55-16:45

1 stop18h 50m

£647

CardiffSan Francisco

CWL - SFO

CWLSFO

Cardiff Wales

Thu 4/12

17:25-16:05

3 stops30h 40m

San Francisco

Thu 11/12

16:40-22:00

2 stops21h 20m

£829

CardiffSan Francisco

CWL - SFO

CWLSFO

Cardiff Wales

Thu 26/3

10:20-12:50

1 stop33h 30m

San Francisco

Mon 30/3

15:00-16:45

2 stops17h 45m

£835

CardiffSan Francisco

CWL - SFO

CWLSFO

Cardiff Wales

Thu 26/3

10:20-12:50

1 stop33h 30m

San Francisco

Mon 30/3

13:45-16:45

1 stop19h 00m

£836

CardiffSan Francisco

CWL - SFO

CWLSFO

Cardiff Wales

Thu 26/3

10:20-23:15

2 stops19h 55m

San Francisco

Sun 29/3

00:40-09:15

2 stops24h 35m

£839

CardiffSan Francisco

CWL - SFO

CWLSFO

Cardiff Wales

Thu 26/3

10:20-23:15

2 stops19h 55m

San Francisco

Mon 30/3

23:55-16:45

2 stops32h 50m

£840

CardiffSan Francisco

CWL - SFO

CWLSFO

Cardiff Wales

Thu 26/3

10:20-22:47

2 stops19h 27m

San Francisco

Sun 29/3

00:40-09:15

2 stops24h 35m

£956

CardiffSan Francisco

CWL - SFO

CWLSFO

Cardiff Wales

Thu 26/3

10:20-23:15

2 stops19h 55m

San Francisco

Sun 29/3

00:40-09:15

2 stops24h 35m

£1,227

Flights are sorted by cheapest return flights first.

Sorted by cheapest first

How to get the cheapest flight ticket from Cardiff to San Francisco

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

Prices

Airlines

What is the cheapest day to depart on your flight to San Francisco?

The cheapest day to depart on your flight to San Francisco is on a Friday when prices can be found for as low as £671. This is often the case because there is less demand to fly during this day of the week. Flights from Cardiff to San Francisco on a Saturday will generally be more expensive and average around £1,028. Keep in mind that these prices on both days could fluctuate depending on the season and the demand.

When to book flights from Cardiff to San Francisco

Are you open to changing your travel dates? Check out the ideal times to fly from Cardiff to San Francisco according to our flight data. Find out which month and days have the cheapest flights.

Estimated return price

Cheap Cardiff to San Francisco (CWL to SFO) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Cardiff to San Francisco

Direct flights	None

There are no direct flights from Cardiff to San Francisco. There are no popular flight routes from Cardiff to San Francisco.

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How far is Cardiff Wales to San Francisco by plane?
The straight-line distance from Cardiff Wales to San Francisco is 5259.0 mi. Flights usually cover this in 19h 27m, depending on flying conditions and air traffic around both airports.
When did momondo last update prices for flights from Cardiff Wales Airport to San Francisco Airport?
Prices for flights from Cardiff Wales Airport to San Francisco Airport refresh daily.
How old do you have to be to fly from Cardiff Wales Airport to San Francisco Airport?
Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Cardiff Wales Airport to San Francisco Airport.
What documentation or ID do you need to fly to San Francisco Airport?
The necessary travel and health documents for your San Francisco Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

Carmel-by-the-Sea

Santa Clara

Seaside

Big Sur

Rohnert Park

Sunnyvale

San Ramon

South San Francisco

Capitola

Campbell

Palo Alto

Sausalito

San Bruno

Woodland

Santa Cruz

Redwood City

Burlingame

Modesto

Aptos

Fremont

Why use momondo?

Why should I use momondo to find a flight deal from Cardiff to San Francisco?

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from Cardiff to San Francisco for you.

Can I find flights from Cardiff to San Francisco with flexible booking policies on momondo?

momondo does allow users to show only those flights to San Francisco from Cardiff which offer a flexible booking policy as well as other useful filters and features.

How can momondo help me find flights from Cardiff to San Francisco?

momondo helps you find the best flight between Cardiff and San Francisco by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

I’m not ready to book a flight from Cardiff to San Francisco right now. Can momondo alert me if prices change?

If you are simply researching potential flights to San Francisco, momondo offers a useful price alert feature which will track prices for flights to San Francisco from Cardiff and alert you when they change.