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Cheap flights from San Francisco to Cardiff from $292

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 7/29. 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 round-trip flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
7:30 pm - 10:15 am
SFO
-
CWL
30h 45m
3 stops
Multiple Airlines Logo
11:35 am - 12:00 pm
CWL
-
SFO
32h 25m
2 stops
$893Multiple Airlines
Sun, Jun 7 - Mon, Jun 22
Multiple Airlines Logo
1:20 pm - 10:15 am
SFO
-
CWL
36h 55m
1 stop
Multiple Airlines Logo
11:35 am - 12:20 pm
CWL
-
SFO
32h 45m
1 stop
$929Multiple Airlines
Sun, Jun 7 - Mon, Jun 22
Multiple Airlines Logo
4:45 pm - 10:50 pm
SFO
-
CWL
22h 05m
2 stops
Multiple Airlines Logo
3:35 pm - 5:35 pm
CWL
-
SFO
34h 00m
2 stops
$957Multiple Airlines
Mon, Apr 13 - Fri, Apr 17
Multiple Airlines Logo
6:00 am - 10:15 am
SFO
-
CWL
20h 15m
2 stops
Multiple Airlines Logo
11:35 am - 12:20 pm
CWL
-
SFO
32h 45m
1 stop
$978Multiple Airlines
Sun, Jun 7 - Mon, Jun 22
Multiple Airlines Logo
8:05 am - 10:15 am
SFO
-
CWL
18h 10m
2 stops
Multiple Airlines Logo
11:35 am - 12:00 pm
CWL
-
SFO
32h 25m
2 stops
$982Multiple Airlines
Sun, Jun 7 - Mon, Jun 22
Multiple Airlines Logo
7:30 pm - 10:15 am
SFO
-
CWL
30h 45m
3 stops
Multiple Airlines Logo
11:35 am - 10:20 am
CWL
-
SFO
30h 45m
3 stops
$984Multiple Airlines
Sun, Jun 7 - Mon, Jun 22
Multiple Airlines Logo
6:20 pm - 11:05 pm
SFO
-
CWL
20h 45m
1 stop
Multiple Airlines Logo
3:55 pm - 2:35 pm
CWL
-
SFO
30h 40m
2 stops
$1,026Multiple Airlines
Sun, Feb 22 - Wed, Feb 25
Multiple Airlines Logo
4:45 pm - 10:00 pm
SFO
-
CWL
21h 15m
2 stops
Multiple Airlines Logo
3:35 pm - 5:35 pm
CWL
-
SFO
34h 00m
2 stops
$1,035Multiple Airlines
Sun, Apr 12 - Fri, Apr 17
Multiple Airlines Logo
8:10 am - 10:00 pm
SFO
-
CWL
29h 50m
3 stops
Multiple Airlines Logo
3:35 pm - 5:35 pm
CWL
-
SFO
34h 00m
2 stops
$1,038Multiple Airlines
Sun, Apr 12 - Fri, Apr 17
Multiple Airlines Logo
4:45 pm - 10:50 pm
SFO
-
CWL
22h 05m
2 stops
Multiple Airlines Logo
3:35 pm - 5:35 pm
CWL
-
SFO
34h 00m
2 stops
$1,041Multiple Airlines
Mon, Apr 20 - Fri, Apr 24

KLM flights from San Francisco to Cardiff

Our best KLM deals on San Francisco to Cardiff flight tickets
KLM
Feb 23
SFO1:55 pmSan Francisco
19h 00m
1 stop
CWL4:55 pmCardiff Wales
Feb 25
CWL5:25 pmCardiff Wales
26h 25m
1 stop
SFO11:50 amSan Francisco
$1,104
KLM
Mar 15
SFO2:55 pmSan Francisco
18h 50m
1 stop
CWL4:45 pmCardiff Wales
Mar 19
CWL10:20 amCardiff Wales
33h 30m
1 stop
SFO12:50 pmSan Francisco
$1,105
KLM
Mar 15
SFO2:55 pmSan Francisco
18h 50m
1 stop
CWL4:45 pmCardiff Wales
Mar 19
CWL10:20 amCardiff Wales
19h 16m
2 stops
SFO10:36 pmSan Francisco
$1,115

Delta flights from San Francisco to Cardiff

Our best Delta deals on San Francisco to Cardiff flight tickets
Delta
Feb 23
SFO10:20 amSan Francisco
22h 35m
2 stops
CWL4:55 pmCardiff Wales
Feb 26
CWL10:20 amCardiff Wales
18h 51m
2 stops
SFO9:11 pmSan Francisco
$1,119
Delta
Mar 15
SFO7:00 amSan Francisco
19h 50m
2 stops
CWL9:50 amCardiff Wales
Mar 19
CWL10:20 amCardiff Wales
19h 55m
2 stops
SFO11:15 pmSan Francisco
$1,120

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 February 11, 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

San FranciscoCardiff

SFO - CWL

SFOCWL

San Francisco

Sun 6/7

7:30 pm-10:15 am

3 stops30h 45m

Cardiff Wales

Mon 6/22

11:35 am-12:00 pm

2 stops32h 25m

$893

San FranciscoCardiff

SFO - CWL

SFOCWL

San Francisco

Sun 6/7

1:20 pm-10:15 am

1 stop36h 55m

Cardiff Wales

Mon 6/22

11:35 am-12:20 pm

1 stop32h 45m

$929

San FranciscoCardiff

SFO - CWL

SFOCWL

San Francisco

Mon 4/13

4:45 pm-10:50 pm

2 stops22h 05m

Cardiff Wales

Fri 4/17

3:35 pm-5:35 pm

2 stops34h 00m

$957

San FranciscoCardiff

SFO - CWL

SFOCWL

San Francisco

Sun 6/7

6:00 am-10:15 am

2 stops20h 15m

Cardiff Wales

Mon 6/22

11:35 am-12:20 pm

1 stop32h 45m

$978

San FranciscoCardiff

SFO - CWL

SFOCWL

San Francisco

Sun 6/7

8:05 am-10:15 am

2 stops18h 10m

Cardiff Wales

Mon 6/22

11:35 am-12:00 pm

2 stops32h 25m

$982

San FranciscoCardiff

SFO - CWL

SFOCWL

San Francisco

Sun 6/7

7:30 pm-10:15 am

3 stops30h 45m

Cardiff Wales

Mon 6/22

11:35 am-10:20 am

3 stops30h 45m

$984

San FranciscoCardiff

SFO - CWL

SFOCWL

San Francisco

Sun 2/22

6:20 pm-11:05 pm

1 stop20h 45m

Cardiff Wales

Wed 2/25

3:55 pm-2:35 pm

2 stops30h 40m

$1,026

San FranciscoCardiff

SFO - CWL

SFOCWL

San Francisco

Sun 4/12

4:45 pm-10:00 pm

2 stops21h 15m

Cardiff Wales

Fri 4/17

3:35 pm-5:35 pm

2 stops34h 00m

$1,035

San FranciscoCardiff

SFO - CWL

SFOCWL

San Francisco

Sun 4/12

8:10 am-10:00 pm

3 stops29h 50m

Cardiff Wales

Fri 4/17

3:35 pm-5:35 pm

2 stops34h 00m

$1,038

San FranciscoCardiff

SFO - CWL

SFOCWL

San Francisco

Mon 4/20

4:45 pm-10:50 pm

2 stops22h 05m

Cardiff Wales

Fri 4/24

3:35 pm-5:35 pm

2 stops34h 00m

$1,041

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 13 resultsSorted by cheapest first
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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 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

18h 50m

Direct flights

None
The fastest flight from San Francisco to Cardiff takes 18h 50m
There are no direct flights from San Francisco to Cardiff. There are no popular flight routes from San Francisco to Cardiff.
Search flight deals

  • 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.

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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