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Cheap flights from San Francisco to Cardiff from $401

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 9/10. 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

Find the cheapest flights from San Francisco to Cardiff

Cheap round-trip flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
5:40 pm - 10:50 pm
SFO
-
CWL
21h 10m
1 stop
Multiple Airlines Logo
10:10 pm - 12:20 pm
CWL
-
SFO
46h 10m
2 stops
$970Multiple Airlines
Tue, Aug 18 - Mon, Sep 7
Multiple Airlines Logo
5:35 pm - 10:20 pm
SFO
-
CWL
20h 45m
1 stop
Multiple Airlines Logo
10:10 pm - 4:20 pm
CWL
-
SFO
26h 10m
2 stops
$1,000Multiple Airlines
Thu, Sep 10 - Mon, Sep 14
Multiple Airlines Logo
5:35 pm - 10:50 pm
SFO
-
CWL
21h 15m
1 stop
Multiple Airlines Logo
11:35 am - 4:40 pm
CWL
-
SFO
37h 05m
2 stops
$1,005Multiple Airlines
Mon, Aug 10 - Mon, Aug 24
Virgin Atlantic Logo
1:45 pm - 9:15 am
SFO
-
CWL
35h 30m
1 stop
Virgin Atlantic Logo
5:15 pm - 11:45 am
CWL
-
SFO
26h 30m
1 stop
$1,066Virgin Atlantic
Thu, Sep 10 - Mon, Sep 14
KLM Logo
1:45 pm - 4:45 pm
SFO
-
CWL
19h 00m
1 stop
KLM Logo
5:15 pm - 11:45 am
CWL
-
SFO
26h 30m
1 stop
$1,091KLM
Tue, Aug 18 - Mon, Sep 7
Virgin Atlantic Logo
12:20 pm - 9:15 am
SFO
-
CWL
36h 55m
2 stops
Virgin Atlantic Logo
9:45 am - 8:32 pm
CWL
-
SFO
18h 47m
2 stops
$1,103Virgin Atlantic
Thu, Sep 10 - Mon, Sep 14
Multiple Airlines Logo
1:20 pm - 10:50 pm
SFO
-
CWL
25h 30m
2 stops
Multiple Airlines Logo
11:35 am - 12:00 pm
CWL
-
SFO
32h 25m
2 stops
$1,112Multiple Airlines
Mon, Aug 10 - Mon, Aug 24
Multiple Airlines Logo
8:10 am - 10:50 pm
SFO
-
CWL
30h 40m
3 stops
Multiple Airlines Logo
11:35 am - 12:00 pm
CWL
-
SFO
32h 25m
2 stops
$1,125Multiple Airlines
Mon, Aug 10 - Mon, Aug 24
KLM Logo
1:45 pm - 4:45 pm
SFO
-
CWL
19h 00m
1 stop
KLM Logo
5:15 pm - 11:45 am
CWL
-
SFO
26h 30m
1 stop
$1,163KLM
Mon, Aug 10 - Mon, Aug 24
Multiple Airlines Logo
6:05 pm - 10:15 am
SFO
-
CWL
32h 10m
2 stops
Multiple Airlines Logo
11:35 am - 10:20 am
CWL
-
SFO
30h 45m
2 stops
$1,205Multiple Airlines
Tue, Aug 18 - Mon, Sep 7

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Virgin Atlantic flights from San Francisco to Cardiff

Our best Virgin Atlantic deals on San Francisco to Cardiff flight tickets
Virgin Atlantic
Sep 10
SFO1:45 pmSan Francisco
35h 30m
1 stop
CWL9:15 amCardiff Wales
Sep 14
CWL5:15 pmCardiff Wales
26h 30m
1 stop
SFO11:45 amSan Francisco
$1,066
Virgin Atlantic
Sep 10
SFO12:20 pmSan Francisco
36h 55m
2 stops
CWL9:15 amCardiff Wales
Sep 14
CWL9:45 amCardiff Wales
18h 47m
2 stops
SFO8:32 pmSan Francisco
$1,103
Virgin Atlantic
Aug 15
SFO10:36 amSan Francisco
22h 09m
2 stops
CWL4:45 pmCardiff Wales
Aug 22
CWL5:35 pmCardiff Wales
26h 10m
1 stop
SFO11:45 amSan Francisco
$5,837

WestJet flights from San Francisco to Cardiff

Our best WestJet deals on San Francisco to Cardiff flight tickets
WestJet
Sep 5
SFO6:05 pmSan Francisco
56h 10m
2 stops
CWL10:15 amCardiff Wales
Sep 12
CWL11:35 amCardiff Wales
56h 25m
2 stops
SFO12:00 pmSan Francisco
$1,283
WestJet
Sep 1
SFO6:00 amSan Francisco
44h 15m
2 stops
CWL10:15 amCardiff Wales
Sep 8
CWL11:35 amCardiff Wales
32h 25m
2 stops
SFO12:00 pmSan Francisco
$1,527
WestJet
Aug 15
SFO6:05 pmSan Francisco
32h 10m
2 stops
CWL10:15 amCardiff Wales
Aug 22
CWL11:35 amCardiff Wales
56h 25m
2 stops
SFO12:00 pmSan Francisco
$1,532

momondo Fare Finder

 
Customize 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 832,500 searches. Data last updated July 19, 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 round-trip

San FranciscoCardiff

SFO - CWL

SFOCWL

San Francisco

Tue 8/18

5:40 pm-10:50 pm

1 stop21h 10m

Cardiff Wales

Mon 9/7

10:10 pm-12:20 pm

2 stops46h 10m

$970

San FranciscoCardiff

SFO - CWL

SFOCWL

San Francisco

Thu 9/10

5:35 pm-10:20 pm

1 stop20h 45m

Cardiff Wales

Mon 9/14

10:10 pm-4:20 pm

2 stops26h 10m

$1,000

San FranciscoCardiff

SFO - CWL

SFOCWL

San Francisco

Mon 8/10

5:35 pm-10:50 pm

1 stop21h 15m

Cardiff Wales

Mon 8/24

11:35 am-4:40 pm

2 stops37h 05m

$1,005

San FranciscoCardiff

SFO - CWL

SFOCWL

San Francisco

Thu 9/10

1:45 pm-9:15 am

1 stop35h 30m

Cardiff Wales

Mon 9/14

5:15 pm-11:45 am

1 stop26h 30m

$1,066
Quickest round-trip

San FranciscoCardiff

SFO - CWL

SFOCWL

San Francisco

Tue 8/18

1:45 pm-4:45 pm

1 stop19h 00m

Cardiff Wales

Mon 9/7

5:15 pm-11:45 am

1 stop26h 30m

$1,091

San FranciscoCardiff

SFO - CWL

SFOCWL

San Francisco

Thu 9/10

12:20 pm-9:15 am

2 stops36h 55m

Cardiff Wales

Mon 9/14

9:45 am-8:32 pm

2 stops18h 47m

$1,103

San FranciscoCardiff

SFO - CWL

SFOCWL

San Francisco

Mon 8/10

1:20 pm-10:50 pm

2 stops25h 30m

Cardiff Wales

Mon 8/24

11:35 am-12:00 pm

2 stops32h 25m

$1,112

San FranciscoCardiff

SFO - CWL

SFOCWL

San Francisco

Mon 8/10

8:10 am-10:50 pm

3 stops30h 40m

Cardiff Wales

Mon 8/24

11:35 am-12:00 pm

2 stops32h 25m

$1,125

San FranciscoCardiff

SFO - CWL

SFOCWL

San Francisco

Mon 8/10

1:45 pm-4:45 pm

1 stop19h 00m

Cardiff Wales

Mon 8/24

5:15 pm-11:45 am

1 stop26h 30m

$1,163

San FranciscoCardiff

SFO - CWL

SFOCWL

San Francisco

Tue 8/18

6:05 pm-10:15 am

2 stops32h 10m

Cardiff Wales

Mon 9/7

11:35 am-10:20 am

2 stops30h 45m

$1,205

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 19 resultsSorted by cheapest 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

Can stopping save me money on San Francisco to Cardiff flights?

You could potentially save up to 26% on your flight if you consider stops on a San Francisco to Cardiff flight.

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

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.
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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 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.

Traveling to a place near Cardiff?

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

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.

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Tue 8/18
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Cabin classes currently available on flights to Cardiff

List of cabin classes available on flights landing in Cardiff. Availability may vary depending on flight origin and airline.
First Class to Cardiff
Business Class to Cardiff