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Cheap flights from San Francisco to Cardiff from £480

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 18/6. 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
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
06:00 - 10:15
SFO
-
CWL
20h 15m
3 stops
Multiple Airlines Logo
22:25 - 21:55
CWL
-
SFO
31h 30m
3 stops
£742Multiple Airlines
Mon, 1 Jun - Mon, 31 Aug
Multiple Airlines Logo
06:00 - 10:15
SFO
-
CWL
20h 15m
3 stops
Multiple Airlines Logo
22:50 - 21:55
CWL
-
SFO
31h 05m
3 stops
£781Multiple Airlines
Sun, 5 Jul - Thu, 9 Jul
Multiple Airlines Logo
18:45 - 10:15
SFO
-
CWL
55h 30m
2 stops
Multiple Airlines Logo
11:35 - 12:20
CWL
-
SFO
32h 45m
1 stop
£784Multiple Airlines
Mon, 1 Jun - Mon, 31 Aug
Multiple Airlines Logo
06:00 - 10:15
SFO
-
CWL
20h 15m
3 stops
Multiple Airlines Logo
22:25 - 21:02
CWL
-
SFO
30h 37m
2 stops
£816Multiple Airlines
Mon, 1 Jun - Mon, 31 Aug
WestJet Logo
06:00 - 10:15
SFO
-
CWL
20h 15m
3 stops
WestJet Logo
11:35 - 12:00
CWL
-
SFO
56h 25m
2 stops
£833WestJet
Sun, 5 Jul - Thu, 9 Jul
Multiple Airlines Logo
16:30 - 10:15
SFO
-
CWL
33h 45m
3 stops
Multiple Airlines Logo
21:45 - 13:50
CWL
-
SFO
24h 05m
2 stops
£855Multiple Airlines
Thu, 18 Jun - Sun, 28 Jun
Multiple Airlines Logo
17:40 - 21:45
SFO
-
CWL
20h 05m
1 stop
Multiple Airlines Logo
22:50 - 21:55
CWL
-
SFO
31h 05m
2 stops
£862Multiple Airlines
Sun, 5 Jul - Thu, 9 Jul
Multiple Airlines Logo
06:00 - 10:15
SFO
-
CWL
20h 15m
3 stops
Multiple Airlines Logo
11:35 - 21:02
CWL
-
SFO
17h 27m
1 stop
£877Multiple Airlines
Mon, 1 Jun - Mon, 31 Aug
Multiple Airlines Logo
19:30 - 10:15
SFO
-
CWL
30h 45m
2 stops
Multiple Airlines Logo
21:45 - 13:50
CWL
-
SFO
24h 05m
2 stops
£886Multiple Airlines
Thu, 18 Jun - Sun, 28 Jun
Multiple Airlines Logo
16:30 - 10:15
SFO
-
CWL
33h 45m
3 stops
Multiple Airlines Logo
21:45 - 21:55
CWL
-
SFO
32h 10m
3 stops
£890Multiple Airlines
Thu, 18 Jun - Sun, 28 Jun

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WestJet flights from San Francisco to Cardiff

Our best WestJet deals on San Francisco to Cardiff flight tickets
WestJet
5 Jul
SFO06:00San Francisco
20h 15m
3 stops
CWL10:15Cardiff Wales
9 Jul
CWL11:35Cardiff Wales
56h 25m
2 stops
SFO12:00San Francisco
£833
WestJet
8 Jun
SFO18:05San Francisco
56h 10m
2 stops
CWL10:15Cardiff Wales
15 Jun
CWL11:35Cardiff Wales
32h 25m
2 stops
SFO12:00San Francisco
£946
WestJet
5 Jul
SFO06:00San Francisco
44h 15m
2 stops
CWL10:15Cardiff Wales
9 Jul
CWL11:35Cardiff Wales
42h 20m
2 stops
SFO21:55San Francisco
£963

KLM flights from San Francisco to Cardiff

Our best KLM deals on San Francisco to Cardiff flight tickets
KLM
1 Jun
SFO13:45San Francisco
35h 30m
1 stop
CWL09:15Cardiff Wales
31 Aug
CWL17:15Cardiff Wales
26h 30m
1 stop
SFO11:45San Francisco
£899
KLM
5 Jul
SFO13:45San Francisco
35h 30m
1 stop
CWL09:15Cardiff Wales
9 Jul
CWL17:15Cardiff Wales
26h 30m
1 stop
SFO11:45San Francisco
£1,221
KLM
5 Jul
SFO17:25San Francisco
15h 20m
2 stops
CWL16:45Cardiff Wales
9 Jul
CWL17:15Cardiff Wales
26h 30m
1 stop
SFO11:45San Francisco
£1,225

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 27 April 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

Mon 1/6

06:00-10:15

3 stops20h 15m

Cardiff Wales

Mon 31/8

22:25-21:55

3 stops31h 30m

£742

San FranciscoCardiff

SFO - CWL

SFOCWL

San Francisco

Sun 5/7

06:00-10:15

3 stops20h 15m

Cardiff Wales

Thu 9/7

22:50-21:55

3 stops31h 05m

£781

San FranciscoCardiff

SFO - CWL

SFOCWL

San Francisco

Mon 1/6

18:45-10:15

2 stops55h 30m

Cardiff Wales

Mon 31/8

11:35-12:20

1 stop32h 45m

£784

San FranciscoCardiff

SFO - CWL

SFOCWL

San Francisco

Mon 1/6

06:00-10:15

3 stops20h 15m

Cardiff Wales

Mon 31/8

22:25-21:02

2 stops30h 37m

£816

San FranciscoCardiff

SFO - CWL

SFOCWL

San Francisco

Sun 5/7

06:00-10:15

3 stops20h 15m

Cardiff Wales

Thu 9/7

11:35-12:00

2 stops56h 25m

£833

San FranciscoCardiff

SFO - CWL

SFOCWL

San Francisco

Thu 18/6

16:30-10:15

3 stops33h 45m

Cardiff Wales

Sun 28/6

21:45-13:50

2 stops24h 05m

£855

San FranciscoCardiff

SFO - CWL

SFOCWL

San Francisco

Sun 5/7

17:40-21:45

1 stop20h 05m

Cardiff Wales

Thu 9/7

22:50-21:55

2 stops31h 05m

£862
Fastest return journey

San FranciscoCardiff

SFO - CWL

SFOCWL

San Francisco

Mon 1/6

06:00-10:15

3 stops20h 15m

Cardiff Wales

Mon 31/8

11:35-21:02

1 stop17h 27m

£877

San FranciscoCardiff

SFO - CWL

SFOCWL

San Francisco

Thu 18/6

19:30-10:15

2 stops30h 45m

Cardiff Wales

Sun 28/6

21:45-13:50

2 stops24h 05m

£886

San FranciscoCardiff

SFO - CWL

SFOCWL

San Francisco

Thu 18/6

16:30-10:15

3 stops33h 45m

Cardiff Wales

Sun 28/6

21:45-21:55

3 stops32h 10m

£890

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 and KLM are the most popular carriers 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 15m

Direct flights

None
The fastest flight from San Francisco to Cardiff takes 20h 15m
There are no direct flights from San Francisco to Cardiff. There are no popular flight routes from San Francisco to Cardiff.
Search flight deals

Frequently asked questions about flying from San Francisco to Cardiff

  • How far is San Francisco to Cardiff Wales by plane?

    San Francisco and Cardiff Wales are 5259.3 mi apart from one another. A reasonable flight in good conditions will take 20h 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 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