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Cheap flights from San Francisco to Cardiff from £268

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from San Francisco to Cardiff departing on 2/6. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
1 adult, Economy, 0 bags
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Find the cheapest flights from San Francisco to Cardiff

Cheap return flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
18:05 - 10:15
SFO
-
CWL
32h 10m
2 stops
Multiple Airlines Logo
11:35 - 12:20
CWL
-
SFO
32h 45m
1 stop
£646Multiple Airlines
Tue, 2 Jun - Tue, 16 Jun
Multiple Airlines Logo
16:30 - 10:15
SFO
-
CWL
33h 45m
2 stops
Multiple Airlines Logo
11:35 - 10:20
CWL
-
SFO
30h 45m
2 stops
£698Multiple Airlines
Tue, 2 Jun - Tue, 16 Jun
KLM Logo
13:45 - 16:45
SFO
-
CWL
19h 00m
1 stop
KLM Logo
17:15 - 11:45
CWL
-
SFO
26h 30m
1 stop
£705KLM
Mon, 13 Apr - Mon, 20 Apr
Multiple Airlines Logo
16:30 - 10:15
SFO
-
CWL
33h 45m
3 stops
Multiple Airlines Logo
11:35 - 10:20
CWL
-
SFO
30h 45m
2 stops
£707Multiple Airlines
Tue, 2 Jun - Tue, 16 Jun
Multiple Airlines Logo
13:20 - 10:15
SFO
-
CWL
36h 55m
1 stop
Multiple Airlines Logo
11:35 - 12:20
CWL
-
SFO
32h 45m
1 stop
£712Multiple Airlines
Tue, 2 Jun - Tue, 16 Jun
KLM Logo
13:45 - 17:05
SFO
-
CWL
19h 20m
1 stop
KLM Logo
17:15 - 11:45
CWL
-
SFO
26h 30m
1 stop
£726KLM
Fri, 4 Sep - Mon, 14 Sep
KLM Logo
06:20 - 09:15
SFO
-
CWL
18h 55m
2 stops
KLM Logo
09:45 - 01:23
CWL
-
SFO
23h 38m
2 stops
£729KLM
Fri, 24 Apr - Fri, 1 May
WestJet Logo
18:05 - 10:15
SFO
-
CWL
32h 10m
3 stops
WestJet Logo
11:35 - 12:00
CWL
-
SFO
32h 25m
3 stops
£731WestJet
Tue, 2 Jun - Tue, 16 Jun
KLM Logo
06:20 - 09:15
SFO
-
CWL
18h 55m
2 stops
KLM Logo
09:45 - 11:45
CWL
-
SFO
34h 00m
1 stop
£743KLM
Fri, 24 Apr - Fri, 1 May
Delta Logo
13:45 - 16:45
SFO
-
CWL
19h 00m
1 stop
Delta Logo
09:45 - 23:54
CWL
-
SFO
22h 09m
2 stops
£750Delta
Mon, 13 Apr - Mon, 20 Apr

KLM flights from San Francisco to Cardiff

Our best KLM deals on San Francisco to Cardiff flight tickets
KLM
13 Apr
SFO13:45San Francisco
19h 00m
1 stop
CWL16:45Cardiff Wales
20 Apr
CWL17:15Cardiff Wales
26h 30m
1 stop
SFO11:45San Francisco
£705
KLM
4 Sept
SFO13:45San Francisco
19h 20m
1 stop
CWL17:05Cardiff Wales
14 Sept
CWL17:15Cardiff Wales
26h 30m
1 stop
SFO11:45San Francisco
£726
KLM
24 Apr
SFO06:20San Francisco
18h 55m
2 stops
CWL09:15Cardiff Wales
1 May
CWL09:45Cardiff Wales
23h 38m
2 stops
SFO01:23San Francisco
£729

Delta flights from San Francisco to Cardiff

Our best Delta deals on San Francisco to Cardiff flight tickets
Delta
13 Apr
SFO13:45San Francisco
19h 00m
1 stop
CWL16:45Cardiff Wales
20 Apr
CWL09:45Cardiff Wales
22h 09m
2 stops
SFO23:54San Francisco
£750
Delta
13 Apr
SFO10:32San Francisco
22h 13m
2 stops
CWL16:45Cardiff Wales
20 Apr
CWL09:45Cardiff Wales
22h 09m
2 stops
SFO23:54San Francisco
£753

momondo Fare Finder

 
Customise your flight search to find flights from San Francisco to Cardiff that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 279,928 searches. Data last updated 15 March 2026.
Use the filters below to find and compare flights from San Francisco to Cardiff that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

San FranciscoCardiff

SFO - CWL

SFOCWL

San Francisco

Tue 2/6

18:05-10:15

2 stops32h 10m

Cardiff Wales

Tue 16/6

11:35-12:20

1 stop32h 45m

£646

San FranciscoCardiff

SFO - CWL

SFOCWL

San Francisco

Tue 2/6

16:30-10:15

2 stops33h 45m

Cardiff Wales

Tue 16/6

11:35-10:20

2 stops30h 45m

£698

San FranciscoCardiff

SFO - CWL

SFOCWL

San Francisco

Mon 13/4

13:45-16:45

1 stop19h 00m

Cardiff Wales

Mon 20/4

17:15-11:45

1 stop26h 30m

£705

San FranciscoCardiff

SFO - CWL

SFOCWL

San Francisco

Tue 2/6

16:30-10:15

3 stops33h 45m

Cardiff Wales

Tue 16/6

11:35-10:20

2 stops30h 45m

£707

San FranciscoCardiff

SFO - CWL

SFOCWL

San Francisco

Tue 2/6

13:20-10:15

1 stop36h 55m

Cardiff Wales

Tue 16/6

11:35-12:20

1 stop32h 45m

£712

San FranciscoCardiff

SFO - CWL

SFOCWL

San Francisco

Fri 4/9

13:45-17:05

1 stop19h 20m

Cardiff Wales

Mon 14/9

17:15-11:45

1 stop26h 30m

£726

San FranciscoCardiff

SFO - CWL

SFOCWL

San Francisco

Fri 24/4

06:20-09:15

2 stops18h 55m

Cardiff Wales

Fri 1/5

09:45-01:23

2 stops23h 38m

£729

San FranciscoCardiff

SFO - CWL

SFOCWL

San Francisco

Tue 2/6

18:05-10:15

3 stops32h 10m

Cardiff Wales

Tue 16/6

11:35-12:00

3 stops32h 25m

£731

San FranciscoCardiff

SFO - CWL

SFOCWL

San Francisco

Fri 24/4

06:20-09:15

2 stops18h 55m

Cardiff Wales

Fri 1/5

09:45-11:45

1 stop34h 00m

£743
Fastest return journey

San FranciscoCardiff

SFO - CWL

SFOCWL

San Francisco

Mon 13/4

13:45-16:45

1 stop19h 00m

Cardiff Wales

Mon 20/4

09:45-23:54

2 stops22h 09m

£750

Flights are sorted by cheapest return flights first.

Showing 1-10 of 13 resultsSorted by cheapest first
1
2

See travel insights to Cardiff from

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

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

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

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 return 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

Fastest flight time

20h 45m

Direct flights

None
The fastest flight from San Francisco to Cardiff takes 20h 45m
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 20h 45m.

  • 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 refresh daily.

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

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

    The required travel and health documents for your Cardiff Wales Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Cardiff Wales Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

Travelling to a place near Cardiff?

Book flights to Cardiff if you plan to visit one of these locations
Barry
Bridgend

Why use momondo?

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

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to Cardiff from San Francisco.

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

Yes. momondo enables you to select and highlight flights to Cardiff from San Francisco with this policy.

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

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to Cardiff from San Francisco.

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

Yes. momondo can track prices for San Francisco to Cardiff flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.

An easier way to manage your Cardiff trip

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Find better results for your trip to the United Kingdom

Airports servicing Wales

Holyhead Anglesey Airport