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 58% 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 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.

£330 Cheap Flights from Cardiff to San Francisco in 2025/26

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Find the cheapest flights from Cardiff to San Francisco

Round-trip

One-way

Cheap return flights

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17:25 - 11:50

CWL

SFO

26h 25m1 stop

13:55 - 16:45

SFO

CWL

18h 50m1 stop

£600KLM

Thu, 22 Jan - Thu, 29 Jan

10:20 - 20:58

CWL

SFO

18h 38m2 stops

09:00 - 09:50

SFO

CWL

16h 50m2 stops

£610KLM

Thu, 22 Jan - Thu, 29 Jan

10:20 - 11:50

CWL

SFO

33h 30m1 stop

09:00 - 09:50

SFO

CWL

16h 50m2 stops

£618Multiple Airlines

Thu, 22 Jan - Thu, 29 Jan

17:25 - 16:05

CWL

SFO

30h 40m3 stops

13:00 - 16:55

SFO

CWL

43h 55m3 stops

£779Multiple Airlines

Thu, 22 Jan - Thu, 29 Jan

17:25 - 16:05

CWL

SFO

30h 40m3 stops

15:10 - 22:00

SFO

CWL

22h 50m2 stops

£805Multiple Airlines

Thu, 22 Jan - Thu, 29 Jan

17:30 - 14:35

CWL

SFO

29h 05m3 stops

16:40 - 22:00

SFO

CWL

21h 20m2 stops

£1,245Multiple Airlines

Sun, 21 Dec - Thu, 1 Jan

21:20 - 15:35

CWL

SFO

26h 15m1 stop

19:55 - 19:40

SFO

CWL

39h 45m2 stops

£1,250Multiple Airlines

Sun, 21 Dec - Thu, 1 Jan

17:30 - 16:45

CWL

SFO

55h 15m3 stops

13:55 - 16:45

SFO

CWL

18h 50m1 stop

£1,293Multiple Airlines

Sun, 21 Dec - Thu, 1 Jan

10:15 - 13:05

CWL

SFO

34h 50m3 stops

15:05 - 09:50

SFO

CWL

34h 45m3 stops

£1,336Multiple Airlines

Sun, 21 Dec - Thu, 1 Jan

10:15 - 11:50

CWL

SFO

33h 35m1 stop

13:55 - 16:45

SFO

CWL

18h 50m1 stop

£1,354KLM

Sun, 21 Dec - Thu, 1 Jan

KLM flights from Cardiff to San Francisco

Our best KLM deals on Cardiff to San Francisco flight tickets

KLM

22 Jan

CWL17:25Cardiff Wales

26h 25m

1 stop

SFO11:50San Francisco

29 Jan

SFO13:55San Francisco

18h 50m

1 stop

CWL16:45Cardiff Wales

£600

Find similar

KLM

22 Jan

CWL10:20Cardiff Wales

18h 38m

2 stops

SFO20:58San Francisco

29 Jan

SFO09:00San Francisco

16h 50m

2 stops

CWL09:50Cardiff Wales

£610

Find similar

KLM

21 Dec

CWL10:15Cardiff Wales

33h 35m

1 stop

SFO11:50San Francisco

1 Jan

SFO13:55San Francisco

18h 50m

1 stop

CWL16:45Cardiff Wales

£1,354

Find similar

Fly from

Fly to

Route

Depart

Return

Price

CardiffSan Francisco

CWL - SFO

CWLSFO

Cardiff Wales

Thu 22/1

17:25-11:50

1 stop26h 25m

San Francisco

Thu 29/1

13:55-16:45

1 stop18h 50m

£600

CardiffSan Francisco

CWL - SFO

CWLSFO

Cardiff Wales

Thu 22/1

10:20-20:58

2 stops18h 38m

San Francisco

Thu 29/1

09:00-09:50

2 stops16h 50m

£610

CardiffSan Francisco

CWL - SFO

CWLSFO

Cardiff Wales

Thu 22/1

10:20-11:50

1 stop33h 30m

San Francisco

Thu 29/1

09:00-09:50

2 stops16h 50m

£618

CardiffSan Francisco

CWL - SFO

CWLSFO

Cardiff Wales

Thu 22/1

17:25-16:05

3 stops30h 40m

San Francisco

Thu 29/1

13:00-16:55

3 stops43h 55m

£779

CardiffSan Francisco

CWL - SFO

CWLSFO

Cardiff Wales

Thu 22/1

17:25-16:05

3 stops30h 40m

San Francisco

Thu 29/1

15:10-22:00

2 stops22h 50m

£805

CardiffSan Francisco

CWL - SFO

CWLSFO

Cardiff Wales

Sun 21/12

17:30-14:35

3 stops29h 05m

San Francisco

Thu 1/1

16:40-22:00

2 stops21h 20m

£1,245

CardiffSan Francisco

CWL - SFO

CWLSFO

Cardiff Wales

Sun 21/12

21:20-15:35

1 stop26h 15m

San Francisco

Thu 1/1

19:55-19:40

2 stops39h 45m

£1,250

CardiffSan Francisco

CWL - SFO

CWLSFO

Cardiff Wales

Sun 21/12

17:30-16:45

3 stops55h 15m

San Francisco

Thu 1/1

13:55-16:45

1 stop18h 50m

£1,293

CardiffSan Francisco

CWL - SFO

CWLSFO

Cardiff Wales

Sun 21/12

10:15-13:05

3 stops34h 50m

San Francisco

Thu 1/1

15:05-09:50

3 stops34h 45m

£1,336

CardiffSan Francisco

CWL - SFO

CWLSFO

Cardiff Wales

Sun 21/12

10:15-11:50

1 stop33h 35m

San Francisco

Thu 1/1

13:55-16:45

1 stop18h 50m

£1,354

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted 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 £675. 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 £1,035. 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

Fastest flight time	26h 30m
Direct flights	None

The fastest flight from Cardiff to San Francisco takes 26h 30m

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 30m, 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.

Santa Clara

Carmel-by-the-Sea

Seaside

Big Sur

Rohnert Park

Campbell

Palo Alto

Santa Cruz

South San Francisco

Capitola

Novato

Sausalito

San Bruno

Woodland

Redwood City

Aptos

Pacific Grove

Burlingame

Modesto

Sunnyvale

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.