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Cheap flights from San Francisco to Cardiff from £513

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 3/9. 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
17:40 - 21:45
SFO
-
CWL
20h 05m
1 stop
Multiple Airlines Logo
23:15 - 20:50
CWL
-
SFO
29h 35m
2 stops
£751Multiple Airlines
Sun, 9 Aug - Tue, 18 Aug
Virgin Atlantic Logo
13:45 - 09:15
SFO
-
CWL
35h 30m
1 stop
Virgin Atlantic Logo
17:15 - 11:45
CWL
-
SFO
26h 30m
1 stop
£758Virgin Atlantic
Sun, 9 Aug - Tue, 18 Aug
Delta Logo
13:45 - 16:45
SFO
-
CWL
19h 00m
1 stop
Delta Logo
09:45 - 11:45
CWL
-
SFO
34h 00m
1 stop
£773Delta
Sun, 9 Aug - Tue, 18 Aug
Delta Logo
10:45 - 16:45
SFO
-
CWL
22h 00m
2 stops
Delta Logo
09:45 - 18:13
CWL
-
SFO
40h 28m
2 stops
£777Delta
Sun, 9 Aug - Tue, 18 Aug
Multiple Airlines Logo
13:45 - 16:45
SFO
-
CWL
19h 00m
1 stop
Multiple Airlines Logo
17:15 - 21:02
CWL
-
SFO
35h 47m
2 stops
£798Multiple Airlines
Sun, 9 Aug - Tue, 18 Aug
Delta Logo
09:30 - 16:45
SFO
-
CWL
23h 15m
2 stops
Delta Logo
09:45 - 22:00
CWL
-
SFO
20h 15m
2 stops
£810Delta
Sun, 9 Aug - Tue, 18 Aug
Multiple Airlines Logo
15:37 - 16:45
SFO
-
CWL
17h 08m
2 stops
Multiple Airlines Logo
17:15 - 21:02
CWL
-
SFO
35h 47m
2 stops
£819Multiple Airlines
Sun, 9 Aug - Tue, 18 Aug
WestJet Logo
18:05 - 10:15
SFO
-
CWL
32h 10m
3 stops
WestJet Logo
11:35 - 12:00
CWL
-
SFO
32h 25m
3 stops
£844WestJet
Sun, 9 Aug - Tue, 18 Aug
WestJet Logo
18:05 - 10:15
SFO
-
CWL
32h 10m
3 stops
WestJet Logo
11:35 - 12:00
CWL
-
SFO
32h 25m
2 stops
£864WestJet
Sun, 9 Aug - Tue, 18 Aug
Delta Logo
09:20 - 17:05
SFO
-
CWL
23h 45m
2 stops
Delta Logo
09:45 - 00:33
CWL
-
SFO
22h 48m
2 stops
£987Delta
Fri, 31 Jul - Fri, 7 Aug

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Delta flights from San Francisco to Cardiff

Our best Delta deals on San Francisco to Cardiff flight tickets
Delta
9 Aug
SFO13:45San Francisco
19h 00m
1 stop
CWL16:45Cardiff Wales
18 Aug
CWL09:45Cardiff Wales
34h 00m
1 stop
SFO11:45San Francisco
£773
Delta
9 Aug
SFO10:45San Francisco
22h 00m
2 stops
CWL16:45Cardiff Wales
18 Aug
CWL09:45Cardiff Wales
40h 28m
2 stops
SFO18:13San Francisco
£777
Delta
9 Aug
SFO09:30San Francisco
23h 15m
2 stops
CWL16:45Cardiff Wales
18 Aug
CWL09:45Cardiff Wales
20h 15m
2 stops
SFO22:00San Francisco
£810

Virgin Atlantic flights from San Francisco to Cardiff

Our best Virgin Atlantic deals on San Francisco to Cardiff flight tickets
Virgin Atlantic
9 Aug
SFO13:45San Francisco
35h 30m
1 stop
CWL09:15Cardiff Wales
18 Aug
CWL17:15Cardiff Wales
26h 30m
1 stop
SFO11:45San Francisco
£758
Virgin Atlantic
31 Jul
SFO13:45San Francisco
35h 30m
1 stop
CWL09:15Cardiff Wales
7 Aug
CWL17:15Cardiff Wales
26h 30m
1 stop
SFO11:45San Francisco
£1,243

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 8 July 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

Sun 9/8

17:40-21:45

1 stop20h 05m

Cardiff Wales

Tue 18/8

23:15-20:50

2 stops29h 35m

£751

San FranciscoCardiff

SFO - CWL

SFOCWL

San Francisco

Sun 9/8

13:45-09:15

1 stop35h 30m

Cardiff Wales

Tue 18/8

17:15-11:45

1 stop26h 30m

£758

San FranciscoCardiff

SFO - CWL

SFOCWL

San Francisco

Sun 9/8

13:45-16:45

1 stop19h 00m

Cardiff Wales

Tue 18/8

09:45-11:45

1 stop34h 00m

£773

San FranciscoCardiff

SFO - CWL

SFOCWL

San Francisco

Sun 9/8

10:45-16:45

2 stops22h 00m

Cardiff Wales

Tue 18/8

09:45-18:13

2 stops40h 28m

£777

San FranciscoCardiff

SFO - CWL

SFOCWL

San Francisco

Sun 9/8

13:45-16:45

1 stop19h 00m

Cardiff Wales

Tue 18/8

17:15-21:02

2 stops35h 47m

£798
Fastest return journey

San FranciscoCardiff

SFO - CWL

SFOCWL

San Francisco

Sun 9/8

09:30-16:45

2 stops23h 15m

Cardiff Wales

Tue 18/8

09:45-22:00

2 stops20h 15m

£810

San FranciscoCardiff

SFO - CWL

SFOCWL

San Francisco

Sun 9/8

15:37-16:45

2 stops17h 08m

Cardiff Wales

Tue 18/8

17:15-21:02

2 stops35h 47m

£818

San FranciscoCardiff

SFO - CWL

SFOCWL

San Francisco

Sun 9/8

18:05-10:15

3 stops32h 10m

Cardiff Wales

Tue 18/8

11:35-12:00

3 stops32h 25m

£844

San FranciscoCardiff

SFO - CWL

SFOCWL

San Francisco

Sun 9/8

18:05-10:15

3 stops32h 10m

Cardiff Wales

Tue 18/8

11:35-12:00

2 stops32h 25m

£864

San FranciscoCardiff

SFO - CWL

SFOCWL

San Francisco

Fri 31/7

09:20-17:05

2 stops23h 45m

Cardiff Wales

Fri 7/8

09:45-00:33

2 stops22h 48m

£987

Flights are sorted by cheapest return flights first.

Showing 1-10 of 15 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 Aer Lingus 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 05m

Direct flights

None
The fastest flight from San Francisco to Cardiff takes 20h 05m
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 05m.

  • 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