What is the cheapest airline that flies from San Francisco to Cardiff Wales?

Delta is the most popular carrier operating from San Francisco to Cardiff Wales

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

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

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

The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from San Francisco Airport to Cardiff Wales Airport.

What documentation or ID do you need to fly to Cardiff Wales Airport?

The travel and health documents required for your trip to Cardiff Wales Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Cardiff Wales Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

$484 Cheap Flights from San Francisco to Cardiff in 2025/26

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Find the cheapest flights from San Francisco to Cardiff

Round-trip

One-way

Cheap round-trip flights

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1:55 pm - 4:55 pmSFO-CWL

19h 00m1 stop

10:20 am - 11:50 amCWL-SFO

33h 30m1 stop

$771Multiple Airlines

Find Deal

Tue, Dec 2 - Tue, Dec 9

1:55 pm - 4:55 pmSFO-CWL

19h 00m1 stop

10:20 am - 11:05 pmCWL-SFO

20h 45m2 stops

$782Multiple Airlines

Find Deal

Tue, Dec 2 - Tue, Dec 9

10:30 am - 4:55 pmSFO-CWL

22h 25m2 stops

10:20 am - 11:05 pmCWL-SFO

20h 45m2 stops

$786Delta

Find Deal

Tue, Dec 2 - Tue, Dec 9

1:55 pm - 4:55 pmSFO-CWL

19h 00m1 stop

10:20 am - 11:50 amCWL-SFO

33h 30m1 stop

$809Delta

Find Deal

Fri, Feb 6 - Tue, Feb 10

1:55 pm - 4:55 pmSFO-CWL

19h 00m1 stop

10:20 am - 11:50 amCWL-SFO

33h 30m1 stop

$811Delta

Find Deal

Fri, Feb 6 - Tue, Feb 10

6:10 am - 4:55 pmSFO-CWL

26h 45m2 stops

10:20 am - 11:50 amCWL-SFO

33h 30m1 stop

$814Delta

Find Deal

Fri, Feb 6 - Tue, Feb 10

1:55 pm - 4:55 pmSFO-CWL

19h 00m1 stop

5:25 pm - 5:43 pmCWL-SFO

32h 18m2 stops

$1,271KLM

Find Deal

Mon, Dec 29 - Tue, Jan 6

1:55 pm - 4:55 pmSFO-CWL

19h 00m1 stop

10:20 am - 11:50 amCWL-SFO

33h 30m1 stop

$1,328Multiple Airlines

Find Deal

Mon, Dec 29 - Tue, Jan 6

1:55 pm - 4:55 pmSFO-CWL

19h 00m1 stop

5:25 pm - 5:43 pmCWL-SFO

32h 18m2 stops

$1,339KLM

Find Deal

Mon, Dec 29 - Tue, Jan 6

3:40 pm - 4:55 pmSFO-CWL

17h 15m2 stops

5:25 pm - 5:43 pmCWL-SFO

32h 18m2 stops

$1,496KLM

Find Deal

Mon, Dec 29 - Tue, Jan 6

Delta flights from San Francisco to Cardiff

Our best Delta deals on San Francisco to Cardiff flight tickets

Delta

Dec 2

SFO10:30 amSan Francisco

22h 25m

2 stops

CWL4:55 pmCardiff Wales

Dec 9

CWL10:20 amCardiff Wales

20h 45m

2 stops

SFO11:05 pmSan Francisco

$786

Find similar

Delta

Feb 6

SFO1:55 pmSan Francisco

19h 00m

1 stop

CWL4:55 pmCardiff Wales

Feb 10

CWL10:20 amCardiff Wales

33h 30m

1 stop

SFO11:50 amSan Francisco

$809

Find similar

Delta

Feb 6

SFO1:55 pmSan Francisco

19h 00m

1 stop

CWL4:55 pmCardiff Wales

Feb 10

CWL10:20 amCardiff Wales

33h 30m

1 stop

SFO11:50 amSan Francisco

$811

Find similar

KLM flights from San Francisco to Cardiff

Our best KLM deals on San Francisco to Cardiff flight tickets

KLM

Dec 29

SFO1:55 pmSan Francisco

19h 00m

1 stop

CWL4:55 pmCardiff Wales

Jan 6

CWL5:25 pmCardiff Wales

32h 18m

2 stops

SFO5:43 pmSan Francisco

$1,271

Find similar

KLM

Dec 29

SFO1:55 pmSan Francisco

19h 00m

1 stop

CWL4:55 pmCardiff Wales

Jan 6

CWL5:25 pmCardiff Wales

32h 18m

2 stops

SFO5:43 pmSan Francisco

$1,339

Find similar

KLM

Dec 29

SFO3:40 pmSan Francisco

17h 15m

2 stops

CWL4:55 pmCardiff Wales

Jan 6

CWL5:25 pmCardiff Wales

32h 18m

2 stops

SFO5:43 pmSan Francisco

$1,496

Find similar

Fly from

Fly to

Route

Depart

Return

Price

San FranciscoCardiff

SFO - CWL

SFOCWL

San Francisco

Tue 12/2

1:55 pm-4:55 pm

1 stop19h 00m

Cardiff Wales

Tue 12/9

10:20 am-11:50 am

1 stop33h 30m

$771

San FranciscoCardiff

SFO - CWL

SFOCWL

San Francisco

Tue 12/2

1:55 pm-4:55 pm

1 stop19h 00m

Cardiff Wales

Tue 12/9

10:20 am-11:05 pm

2 stops20h 45m

$782

San FranciscoCardiff

SFO - CWL

SFOCWL

San Francisco

Tue 12/2

10:30 am-4:55 pm

2 stops22h 25m

Cardiff Wales

Tue 12/9

10:20 am-11:05 pm

2 stops20h 45m

$786

San FranciscoCardiff

SFO - CWL

SFOCWL

San Francisco

Fri 2/6

1:55 pm-4:55 pm

1 stop19h 00m

Cardiff Wales

Tue 2/10

10:20 am-11:50 am

1 stop33h 30m

$809

San FranciscoCardiff

SFO - CWL

SFOCWL

San Francisco

Fri 2/6

1:55 pm-4:55 pm

1 stop19h 00m

Cardiff Wales

Tue 2/10

10:20 am-11:50 am

1 stop33h 30m

$811

San FranciscoCardiff

SFO - CWL

SFOCWL

San Francisco

Fri 2/6

6:10 am-4:55 pm

2 stops26h 45m

Cardiff Wales

Tue 2/10

10:20 am-11:50 am

1 stop33h 30m

$814

San FranciscoCardiff

SFO - CWL

SFOCWL

San Francisco

Mon 12/29

1:55 pm-4:55 pm

1 stop19h 00m

Cardiff Wales

Tue 1/6

5:25 pm-5:43 pm

2 stops32h 18m

$1,271

San FranciscoCardiff

SFO - CWL

SFOCWL

San Francisco

Mon 12/29

1:55 pm-4:55 pm

1 stop19h 00m

Cardiff Wales

Tue 1/6

10:20 am-11:50 am

1 stop33h 30m

$1,328

San FranciscoCardiff

SFO - CWL

SFOCWL

San Francisco

Mon 12/29

1:55 pm-4:55 pm

1 stop19h 00m

Cardiff Wales

Tue 1/6

5:25 pm-5:43 pm

2 stops32h 18m

$1,339

San FranciscoCardiff

SFO - CWL

SFOCWL

San Francisco

Mon 12/29

3:40 pm-4:55 pm

2 stops17h 15m

Cardiff Wales

Tue 1/6

5:25 pm-5:43 pm

2 stops32h 18m

$1,496

Flights are sorted by cheapest round-trip flights first.

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

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 Cardiff?

The cheapest day to depart on your flight to Cardiff is on a Thursday when prices can be found for as low as $812. This is often the case because there is less demand to fly during this day of the week. If your travel schedule is flexible, try to avoid departing on a Wednesday because tickets tend to average around $832. These prices are subject to change though, so be sure to set up a Price Alert for flights to Cardiff.

What is the cheapest time of day to depart on your flight to Cardiff?

Flying to Cardiff from San Francisco at noon is the least expensive time of day to depart. momondo users have found prices as low as $776 when looking at flights departing at noon. If you have a flexible travel schedule, then try to avoid flying in the morning when prices are $828 on average. Flights to Cardiff from San Francisco in the morning are generally more expensive because this time of day is more convenient for travelers’ schedules.

When to book flights from San Francisco to Cardiff

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

Estimated round-trip price

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

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

Direct flights	None

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

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How far is San Francisco to Cardiff Wales by plane?
San Francisco and Cardiff Wales are 5259.0 mi apart from one another. A reasonable flight in good conditions will take 17h 15m.
When did momondo last update prices for flights from San Francisco Airport to Cardiff Wales Airport?
Prices for flights from San Francisco Airport to Cardiff Wales Airport are updated daily.
How old do you have to be to fly from San Francisco Airport to Cardiff Wales Airport?
The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from San Francisco Airport to Cardiff Wales Airport.
What documentation or ID do you need to fly to Cardiff Wales Airport?
The travel and health documents required for your trip to Cardiff Wales Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Cardiff Wales Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

Why use momondo?

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

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 San Francisco to Cardiff for you.

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

All flight searches from San Francisco to Cardiff on momondo can be filtered to show those which offer flexible booking policies.

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

momondo provides multiple filters to help you find the best flight to Cardiff from San Francisco. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

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

If you are not ready to book a flight from San Francisco to Cardiff now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Cardiff and let you know when they change.