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Cheap flights from San Francisco to Cardiff from $314

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 6/1. 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 round-trip flights

Enter your travel dates to find the best prices.
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
$1,036Multiple Airlines
Mon, Jun 1 - Mon, Jun 8
WestJet Logo
6:00 am - 10:15 am
SFO
-
CWL
20h 15m
3 stops
WestJet Logo
11:35 am - 12:00 pm
CWL
-
SFO
32h 25m
2 stops
$1,062WestJet
Mon, Jun 1 - Mon, Jun 8
WestJet Logo
6:00 am - 10:15 am
SFO
-
CWL
20h 15m
3 stops
WestJet Logo
11:35 am - 12:00 pm
CWL
-
SFO
32h 25m
3 stops
$1,076WestJet
Mon, Jun 1 - Mon, Jun 8
Multiple Airlines Logo
8:30 am - 10:15 am
SFO
-
CWL
17h 45m
1 stop
Multiple Airlines Logo
11:35 am - 9:10 pm
CWL
-
SFO
17h 35m
1 stop
$1,080Multiple Airlines
Mon, Jun 1 - Mon, Jun 8
Multiple Airlines Logo
5:40 pm - 9:45 pm
SFO
-
CWL
20h 05m
1 stop
Multiple Airlines Logo
3:35 pm - 5:35 pm
CWL
-
SFO
34h 00m
2 stops
$1,088Multiple Airlines
Sun, May 3 - Fri, May 8
Multiple Airlines Logo
8:30 am - 10:15 am
SFO
-
CWL
17h 45m
1 stop
Multiple Airlines Logo
11:35 am - 12:00 pm
CWL
-
SFO
32h 25m
3 stops
$1,093Multiple Airlines
Mon, Jun 1 - Mon, Jun 8
Multiple Airlines Logo
5:40 pm - 9:45 pm
SFO
-
CWL
20h 05m
1 stop
Multiple Airlines Logo
10:45 pm - 3:55 pm
CWL
-
SFO
25h 10m
1 stop
$1,186Multiple Airlines
Sun, May 3 - Fri, May 8
Multiple Airlines Logo
7:25 am - 9:15 am
SFO
-
CWL
17h 50m
2 stops
Multiple Airlines Logo
9:45 am - 10:48 pm
CWL
-
SFO
21h 03m
2 stops
$1,350Multiple Airlines
Sun, May 3 - Fri, May 8
Multiple Airlines Logo
5:40 pm - 11:30 am
SFO
-
CWL
33h 50m
3 stops
Multiple Airlines Logo
3:35 pm - 5:35 pm
CWL
-
SFO
34h 00m
2 stops
$1,511Multiple Airlines
Sun, May 3 - Fri, May 8
Multiple Airlines Logo
5:40 pm - 11:30 am
SFO
-
CWL
33h 50m
3 stops
Multiple Airlines Logo
12:00 pm - 12:40 pm
CWL
-
SFO
32h 40m
3 stops
$1,879Multiple Airlines
Sun, May 3 - Fri, May 8

WestJet flights from San Francisco to Cardiff

Our best WestJet deals on San Francisco to Cardiff flight tickets
WestJet
Jun 1
SFO6:00 amSan Francisco
20h 15m
3 stops
CWL10:15 amCardiff Wales
Jun 8
CWL11:35 amCardiff Wales
32h 25m
2 stops
SFO12:00 pmSan Francisco
$1,062
WestJet
Jun 1
SFO6:00 amSan Francisco
20h 15m
3 stops
CWL10:15 amCardiff Wales
Jun 8
CWL11:35 amCardiff Wales
32h 25m
3 stops
SFO12:00 pmSan Francisco
$1,076

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 April 2, 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

Mon 6/1

6:00 am-10:15 am

2 stops20h 15m

Cardiff Wales

Mon 6/8

11:35 am-12:20 pm

1 stop32h 45m

$1,036

San FranciscoCardiff

SFO - CWL

SFOCWL

San Francisco

Mon 6/1

6:00 am-10:15 am

3 stops20h 15m

Cardiff Wales

Mon 6/8

11:35 am-12:00 pm

2 stops32h 25m

$1,062

San FranciscoCardiff

SFO - CWL

SFOCWL

San Francisco

Mon 6/1

6:00 am-10:15 am

3 stops20h 15m

Cardiff Wales

Mon 6/8

11:35 am-12:00 pm

3 stops32h 25m

$1,076
Quickest round-trip

San FranciscoCardiff

SFO - CWL

SFOCWL

San Francisco

Mon 6/1

8:30 am-10:15 am

1 stop17h 45m

Cardiff Wales

Mon 6/8

11:35 am-9:10 pm

1 stop17h 35m

$1,080

San FranciscoCardiff

SFO - CWL

SFOCWL

San Francisco

Sun 5/3

5:40 pm-9:45 pm

1 stop20h 05m

Cardiff Wales

Fri 5/8

3:35 pm-5:35 pm

2 stops34h 00m

$1,088

San FranciscoCardiff

SFO - CWL

SFOCWL

San Francisco

Mon 6/1

8:30 am-10:15 am

1 stop17h 45m

Cardiff Wales

Mon 6/8

11:35 am-12:00 pm

3 stops32h 25m

$1,093

San FranciscoCardiff

SFO - CWL

SFOCWL

San Francisco

Sun 5/3

5:40 pm-9:45 pm

1 stop20h 05m

Cardiff Wales

Fri 5/8

10:45 pm-3:55 pm

1 stop25h 10m

$1,186

San FranciscoCardiff

SFO - CWL

SFOCWL

San Francisco

Sun 5/3

7:25 am-9:15 am

2 stops17h 50m

Cardiff Wales

Fri 5/8

9:45 am-10:48 pm

2 stops21h 03m

$1,350

San FranciscoCardiff

SFO - CWL

SFOCWL

San Francisco

Sun 5/3

5:40 pm-11:30 am

3 stops33h 50m

Cardiff Wales

Fri 5/8

3:35 pm-5:35 pm

2 stops34h 00m

$1,511

San FranciscoCardiff

SFO - CWL

SFOCWL

San Francisco

Sun 5/3

5:40 pm-11:30 am

3 stops33h 50m

Cardiff Wales

Fri 5/8

12:00 pm-12:40 pm

3 stops32h 40m

$1,879

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 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

17h 45m

Direct flights

None
The fastest flight from San Francisco to Cardiff takes 17h 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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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 17h 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 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