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.

£584 Cheap Flights from Cardiff to San Francisco in 2026

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Find the cheapest flights from Cardiff to San Francisco

Round-trip

One-way

Cheap return flights

Enter your travel dates to find the best prices.

10:20 - 23:15

CWL

SFO

19h 55m

2 stops

07:00 - 09:50

SFO

CWL

19h 50m

2 stops

£603KLM

Wed, 18 Mar - Wed, 25 Mar

10:20 - 12:50

CWL

SFO

33h 30m

1 stop

07:00 - 09:50

SFO

CWL

19h 50m

2 stops

£626KLM

Wed, 18 Mar - Wed, 25 Mar

17:30 - 11:50

CWL

SFO

26h 20m

1 stop

14:55 - 16:55

SFO

CWL

19h 00m

1 stop

£635KLM

Sun, 1 Mar - Mon, 9 Mar

17:30 - 11:50

CWL

SFO

26h 20m

1 stop

14:20 - 16:55

SFO

CWL

19h 35m

2 stops

£655KLM

Sun, 1 Mar - Mon, 9 Mar

10:20 - 12:50

CWL

SFO

33h 30m

1 stop

14:55 - 16:55

SFO

CWL

19h 00m

1 stop

£657KLM

Wed, 18 Mar - Wed, 25 Mar

17:30 - 15:51

CWL

SFO

30h 21m

2 stops

08:00 - 09:50

SFO

CWL

18h 50m

2 stops

£660KLM

Sun, 1 Mar - Mon, 9 Mar

17:20 - 11:50

CWL

SFO

26h 30m

1 stop

13:55 - 16:55

SFO

CWL

19h 00m

1 stop

£694KLM

Mon, 16 Feb - Mon, 23 Feb

10:20 - 22:36

CWL

SFO

19h 16m

2 stops

07:00 - 09:50

SFO

CWL

19h 50m

2 stops

£732Virgin Atlantic

Thu, 19 Mar - Thu, 26 Mar

10:20 - 22:36

CWL

SFO

19h 16m

2 stops

14:55 - 16:45

SFO

CWL

18h 50m

1 stop

£738Delta

Thu, 19 Mar - Thu, 26 Mar

10:20 - 12:50

CWL

SFO

33h 30m

1 stop

14:55 - 16:45

SFO

CWL

18h 50m

1 stop

£739Multiple Airlines

Thu, 19 Mar - Thu, 26 Mar

KLM flights from Cardiff to San Francisco

Our best KLM deals on Cardiff to San Francisco flight tickets

KLM

18 Mar

CWL10:20Cardiff Wales

19h 55m

2 stops

SFO23:15San Francisco

25 Mar

SFO07:00San Francisco

19h 50m

2 stops

CWL09:50Cardiff Wales

£603

KLM

18 Mar

CWL10:20Cardiff Wales

33h 30m

1 stop

SFO12:50San Francisco

25 Mar

SFO07:00San Francisco

19h 50m

2 stops

CWL09:50Cardiff Wales

£626

KLM

1 Mar

CWL17:30Cardiff Wales

26h 20m

1 stop

SFO11:50San Francisco

9 Mar

SFO14:55San Francisco

19h 00m

1 stop

CWL16:55Cardiff Wales

£635

Virgin Atlantic flights from Cardiff to San Francisco

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

Virgin Atlantic

19 Mar

CWL10:20Cardiff Wales

19h 16m

2 stops

SFO22:36San Francisco

26 Mar

SFO07:00San Francisco

19h 50m

2 stops

CWL09:50Cardiff Wales

£732

Virgin Atlantic

20 Mar

CWL17:15Cardiff Wales

46h 41m

2 stops

SFO08:56San Francisco

27 Mar

SFO14:20San Francisco

34h 55m

2 stops

CWL08:15Cardiff Wales

£747

Virgin Atlantic

20 Mar

CWL17:15Cardiff Wales

26h 35m

1 stop

SFO12:50San Francisco

27 Mar

SFO21:35San Francisco

35h 10m

2 stops

CWL15:45Cardiff Wales

£865

Fly from

Fly to

Route

Depart

Return

Price

CardiffSan Francisco

CWL - SFO

CWLSFO

Cardiff Wales

Wed 18/3

10:20-23:15

2 stops19h 55m

San Francisco

Wed 25/3

07:00-09:50

2 stops19h 50m

£603

CardiffSan Francisco

CWL - SFO

CWLSFO

Cardiff Wales

Wed 18/3

10:20-12:50

1 stop33h 30m

San Francisco

Wed 25/3

07:00-09:50

2 stops19h 50m

£626

CardiffSan Francisco

CWL - SFO

CWLSFO

Cardiff Wales

Sun 1/3

17:30-11:50

1 stop26h 20m

San Francisco

Mon 9/3

14:55-16:55

1 stop19h 00m

£635

CardiffSan Francisco

CWL - SFO

CWLSFO

Cardiff Wales

Sun 1/3

17:30-11:50

1 stop26h 20m

San Francisco

Mon 9/3

14:20-16:55

2 stops19h 35m

£655

CardiffSan Francisco

CWL - SFO

CWLSFO

Cardiff Wales

Wed 18/3

10:20-12:50

1 stop33h 30m

San Francisco

Wed 25/3

14:55-16:55

1 stop19h 00m

£657

CardiffSan Francisco

CWL - SFO

CWLSFO

Cardiff Wales

Sun 1/3

17:30-15:51

2 stops30h 21m

San Francisco

Mon 9/3

08:00-09:50

2 stops18h 50m

£660

CardiffSan Francisco

CWL - SFO

CWLSFO

Cardiff Wales

Mon 16/2

17:20-11:50

1 stop26h 30m

San Francisco

Mon 23/2

13:55-16:55

1 stop19h 00m

£694

CardiffSan Francisco

CWL - SFO

CWLSFO

Cardiff Wales

Thu 19/3

10:20-22:36

2 stops19h 16m

San Francisco

Thu 26/3

07:00-09:50

2 stops19h 50m

£732

CardiffSan Francisco

CWL - SFO

CWLSFO

Cardiff Wales

Thu 19/3

10:20-22:36

2 stops19h 16m

San Francisco

Thu 26/3

14:55-16:45

1 stop18h 50m

£738

CardiffSan Francisco

CWL - SFO

CWLSFO

Cardiff Wales

Thu 19/3

10:20-12:50

1 stop33h 30m

San Francisco

Thu 26/3

14:55-16:45

1 stop18h 50m

£739

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

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 56% of people opting to fly with this airline when travelling to San Francisco. Keep in mind that there are 3 different airlines that fly to San Francisco on a routine basis, so you have a few additional options to choose from.

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

Fastest flight time	26h 20m
Direct flights	None

The fastest flight from Cardiff to San Francisco takes 26h 20m

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 26h 20m, 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.

Sunnyvale

Santa Clara

Seaside

Big Sur

Rohnert Park

Campbell

Palo Alto

Santa Cruz

Roseville

Novato

South San Francisco

Capitola

Aptos

Sausalito

San Bruno

Woodland

Pacific Grove

Redwood City

Mill Valley

Burlingame

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.