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.

$426 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

1:55 pm - 4:55 pmSFO-CWL

19h 00m1 stop

5:15 pm - 11:50 amCWL-SFO

26h 35m1 stop

$825Virgin Atlantic

Find Deal

Thu, Feb 26 - Mon, Mar 2

6:00 am - 9:50 amSFO-CWL

19h 50m2 stops

10:20 am - 11:50 amCWL-SFO

33h 30m1 stop

$830Delta

Find Deal

Thu, Feb 26 - Mon, Mar 2

6:00 am - 4:55 pmSFO-CWL

26h 55m2 stops

10:20 am - 11:51 pmCWL-SFO

45h 31m2 stops

$840Delta

Find Deal

Thu, Feb 26 - Mon, Mar 2

1:55 pm - 4:55 pmSFO-CWL

19h 00m1 stop

10:20 am - 11:50 amCWL-SFO

33h 30m1 stop

$847Delta

Find Deal

Thu, Feb 26 - Mon, Mar 2

12:40 am - 9:50 amSFO-CWL

25h 10m2 stops

10:20 am - 6:20 pmCWL-SFO

40h 00m2 stops

$862Delta

Find Deal

Wed, Feb 25 - Mon, Mar 2

1:55 pm - 4:55 pmSFO-CWL

19h 00m1 stop

5:15 pm - 11:50 amCWL-SFO

26h 35m1 stop

$877KLM

Find Deal

Thu, Feb 26 - Mon, Mar 2

12:40 am - 9:50 amSFO-CWL

25h 10m2 stops

10:20 am - 10:47 pmCWL-SFO

20h 27m2 stops

$907Delta

Find Deal

Wed, Feb 25 - Mon, Mar 2

1:55 pm - 4:55 pmSFO-CWL

19h 00m1 stop

10:20 am - 10:47 pmCWL-SFO

20h 27m2 stops

$960Multiple Airlines

Find Deal

Mon, Dec 29 - Sat, Jan 10

1:55 pm - 4:55 pmSFO-CWL

19h 00m1 stop

10:20 am - 11:50 amCWL-SFO

33h 30m1 stop

$1,017KLM

Find Deal

Mon, Dec 29 - Tue, Jan 6

8:40 pm - 11:30 amSFO-CWL

30h 50m3 stops

12:00 pm - 9:50 amCWL-SFO

29h 50m3 stops

$3,791Multiple Airlines

Find Deal

Mon, Dec 29 - Sat, Jan 10

KLM flights from San Francisco to Cardiff

Our best KLM deals on San Francisco to Cardiff flight tickets

KLM

Feb 26

SFO1:55 pmSan Francisco

19h 00m

1 stop

CWL4:55 pmCardiff Wales

Mar 2

CWL5:15 pmCardiff Wales

26h 35m

1 stop

SFO11:50 amSan Francisco

$877

Find similar

KLM

Dec 29

SFO1:55 pmSan Francisco

19h 00m

1 stop

CWL4:55 pmCardiff Wales

Jan 6

CWL10:20 amCardiff Wales

33h 30m

1 stop

SFO11:50 amSan Francisco

$1,017

Find similar

KLM

Dec 29

SFO1:55 pmSan Francisco

19h 00m

1 stop

CWL4:55 pmCardiff Wales

Jan 6

CWL5:15 pmCardiff Wales

28h 10m

2 stops

SFO1:25 pmSan Francisco

$1,250

Find similar

Delta flights from San Francisco to Cardiff

Our best Delta deals on San Francisco to Cardiff flight tickets

Delta

Feb 26

SFO6:00 amSan Francisco

19h 50m

2 stops

CWL9:50 amCardiff Wales

Mar 2

CWL10:20 amCardiff Wales

33h 30m

1 stop

SFO11:50 amSan Francisco

$830

Find similar

Delta

Feb 26

SFO6:00 amSan Francisco

26h 55m

2 stops

CWL4:55 pmCardiff Wales

Mar 2

CWL10:20 amCardiff Wales

45h 31m

2 stops

SFO11:51 pmSan Francisco

$840

Find similar

Delta

Feb 26

SFO1:55 pmSan Francisco

19h 00m

1 stop

CWL4:55 pmCardiff Wales

Mar 2

CWL10:20 amCardiff Wales

33h 30m

1 stop

SFO11:50 amSan Francisco

$847

Find similar

Fly from

Fly to

Route

Depart

Return

Price

San FranciscoCardiff

SFO - CWL

SFOCWL

San Francisco

Thu 2/26

1:55 pm-4:55 pm

1 stop19h 00m

Cardiff Wales

Mon 3/2

5:15 pm-11:50 am

1 stop26h 35m

$825

San FranciscoCardiff

SFO - CWL

SFOCWL

San Francisco

Thu 2/26

6:00 am-9:50 am

2 stops19h 50m

Cardiff Wales

Mon 3/2

10:20 am-11:50 am

1 stop33h 30m

$830

San FranciscoCardiff

SFO - CWL

SFOCWL

San Francisco

Thu 2/26

6:00 am-4:55 pm

2 stops26h 55m

Cardiff Wales

Mon 3/2

10:20 am-11:51 pm

2 stops45h 31m

$840

San FranciscoCardiff

SFO - CWL

SFOCWL

San Francisco

Thu 2/26

1:55 pm-4:55 pm

1 stop19h 00m

Cardiff Wales

Mon 3/2

10:20 am-11:50 am

1 stop33h 30m

$847

San FranciscoCardiff

SFO - CWL

SFOCWL

San Francisco

Wed 2/25

12:40 am-9:50 am

2 stops25h 10m

Cardiff Wales

Mon 3/2

10:20 am-6:20 pm

2 stops40h 00m

$862

San FranciscoCardiff

SFO - CWL

SFOCWL

San Francisco

Thu 2/26

1:55 pm-4:55 pm

1 stop19h 00m

Cardiff Wales

Mon 3/2

5:15 pm-11:50 am

1 stop26h 35m

$877

San FranciscoCardiff

SFO - CWL

SFOCWL

San Francisco

Wed 2/25

12:40 am-9:50 am

2 stops25h 10m

Cardiff Wales

Mon 3/2

10:20 am-10:47 pm

2 stops20h 27m

$907

San FranciscoCardiff

SFO - CWL

SFOCWL

San Francisco

Mon 12/29

1:55 pm-4:55 pm

1 stop19h 00m

Cardiff Wales

Sat 1/10

10:20 am-10:47 pm

2 stops20h 27m

$960

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

$1,017

San FranciscoCardiff

SFO - CWL

SFOCWL

San Francisco

Mon 12/29

8:40 pm-11:30 am

3 stops30h 50m

Cardiff Wales

Sat 1/10

12:00 pm-9:50 am

3 stops29h 50m

$3,791

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 13 resultsSorted by cheapest first

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 18h 50m.
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.