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Cardiff

$978+ Cheap flights from San Francisco (SFO) to Cardiff (CWL)

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 7/5. Fares are subject to change and may not be available on all flights or dates of travel.
SFO — CWL
May 18 — May 251
Mon 5/18
Mon 5/25
1 adult, Economy
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1. Tell us where you want to go

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Cheap flight deals from San Francisco to Cardiff

Cheapest flights from San Francisco to Cardiff
Explore the most affordable flight options available from San Francisco to Cardiff. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 18, 2026.

This Kiwi.com deal was found by Cheapflights users on 4/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 7/55:40 pm
SFO
-
CWL
1 stop20h 05m
Multiple Airlines
Tue 7/1411:35 am
CWL
-
SFO
2 stops42h 20m
Multiple Airlines
Deal found 4/13$978
This Kiwi.com deal was found by Cheapflights users on 4/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/86:00 am
SFO
-
CWL
2 stops20h 15m
Multiple Airlines
Mon 6/1511:35 am
CWL
-
SFO
1 stop32h 45m
Multiple Airlines
Deal found 4/15$986
This Mytrip deal was found by Cheapflights users on 4/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/86:00 am
SFO
-
CWL
2 stops20h 15m
WestJet
Mon 6/1511:35 am
CWL
-
SFO
2 stops32h 25m
WestJet
Deal found 4/15$996
This KLM deal was found by Cheapflights users on 4/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/21:50 pm
SFO
-
CWL
1 stop19h 05m
KLM
Wed 12/210:20 am
CWL
-
SFO
1 stop33h 30m
KLM
Deal found 4/17$1,012
This KLM deal was found by Cheapflights users on 4/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/97:00 am
SFO
-
CWL
2 stops18h 50m
KLM
Tue 12/810:20 am
CWL
-
SFO
1 stop33h 30m
KLM
Deal found 4/17$1,016
This Delta deal was found by Cheapflights users on 4/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/21:50 pm
SFO
-
CWL
1 stop19h 05m
Delta
Wed 12/210:20 am
CWL
-
SFO
2 stops20h 19m
Delta
Deal found 4/17$1,045
This Kiwi.com deal was found by Cheapflights users on 4/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/71:20 pm
SFO
-
CWL
1 stop36h 55m
Multiple Airlines
Tue 7/1411:35 am
CWL
-
SFO
1 stop32h 45m
Multiple Airlines
Deal found 4/13$1,047
This Delta deal was found by Cheapflights users on 4/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/110:31 am
SFO
-
CWL
2 stops22h 14m
Delta
Tue 12/110:20 am
CWL
-
SFO
2 stops20h 19m
Delta
Deal found 4/17$1,050
This Kiwi.com deal was found by Cheapflights users on 4/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 6/1410:58 pm
SFO
-
CWL
2 stops27h 17m
Multiple Airlines
Sat 6/2011:35 am
CWL
-
SFO
1 stop32h 45m
Multiple Airlines
Deal found 4/13$1,054

Find flight deals from San Francisco to Cardiff

Discover tips and strategies to find the most affordable flight options for your journey from San Francisco (SFO) to Cardiff (CWL). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated April 18, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$978
(Kiwi.com)
Provider with most accurate pricing for San Francisco-Cardiff Wales flight deals.
Search Deals
Provider most trusted by Cheapflights users for San Francisco-Cardiff Wales flights.
Search Deals
From San Francisco to Cardiff Wales
Search Deals

Cheapflights 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, Cheapflights users made 2,558,603 searches. Data last updated April 18, 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

Sun 7/5

5:40 pm-9:45 pm

1 stop20h 05m

Cardiff Wales

Tue 7/14

11:35 am-9:55 pm

2 stops42h 20m

$978

San FranciscoCardiff

SFO - CWL

SFOCWL

San Francisco

Mon 6/8

6:00 am-10:15 am

2 stops20h 15m

Cardiff Wales

Mon 6/15

11:35 am-12:20 pm

1 stop32h 45m

$986

San FranciscoCardiff

SFO - CWL

SFOCWL

San Francisco

Mon 6/8

6:00 am-10:15 am

2 stops20h 15m

Cardiff Wales

Mon 6/15

11:35 am-12:00 pm

2 stops32h 25m

$996

San FranciscoCardiff

SFO - CWL

SFOCWL

San Francisco

Thu 5/28

8:44 pm-10:15 am

2 stops29h 31m

Cardiff Wales

Thu 6/4

11:35 am-12:20 pm

1 stop32h 45m

$1,192

San FranciscoCardiff

SFO - CWL

SFOCWL

San Francisco

Sat 5/30

1:20 pm-10:15 am

1 stop36h 55m

Cardiff Wales

Sat 6/6

11:35 am-12:20 pm

1 stop32h 45m

$1,292

San FranciscoCardiff

SFO - CWL

SFOCWL

San Francisco

Wed 7/8

2:19 pm-9:15 am

2 stops34h 56m

Cardiff Wales

Mon 7/13

9:45 am-8:19 pm

2 stops42h 34m

$1,316

San FranciscoCardiff

SFO - CWL

SFOCWL

San Francisco

Mon 7/6

10:35 am-4:45 pm

2 stops22h 10m

Cardiff Wales

Mon 7/13

9:45 am-8:19 pm

2 stops42h 34m

$1,316

San FranciscoCardiff

SFO - CWL

SFOCWL

San Francisco

Tue 7/7

4:00 pm-9:15 am

2 stops33h 15m

Cardiff Wales

Mon 7/13

9:45 am-8:55 pm

2 stops43h 10m

$1,326

San FranciscoCardiff

SFO - CWL

SFOCWL

San Francisco

Sat 5/30

6:00 am-10:15 am

2 stops44h 15m

Cardiff Wales

Sat 6/6

11:35 am-9:55 pm

2 stops42h 20m

$1,331
Quickest round-trip

San FranciscoCardiff

SFO - CWL

SFOCWL

San Francisco

Fri 7/10

1:45 pm-5:05 pm

1 stop19h 20m

Cardiff Wales

Tue 7/14

5:15 pm-11:45 am

1 stop26h 30m

$1,526

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/13

Sorted by cheapest first

Compare providers for flights from San Francisco to Cardiff

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from San Francisco to Cardiff in April.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on San Francisco-Cardiff flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on San Francisco-Cardiff flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from San Francisco-Cardiff flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on San Francisco-Cardiff flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for San Francisco-Cardiff flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from San Francisco to Cardiff

Have a flexible travel schedule? Discover the best time to fly to Cardiff from San Francisco with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Related info for your journey

Find useful and relevant information for your journey from San Francisco to Cardiff. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from San Francisco to Cardiff?

    For as low as $996, WestJet can have you in Cardiff from San Francisco in 20h 15m. The distance between San Francisco and Cardiff is about 5267 mi.

  • Can I find deals for flights from San Francisco to Cardiff that include hotel bookings?

    Yes. In addition to deals on San Francisco to Cardiff flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from San Francisco to Cardiff?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from San Francisco to Cardiff.

  • Can I find deals for business class flights from San Francisco to Cardiff?

    Yes. Cheapflights offers flight deals from San Francisco to Cardiff by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

See more FAQs

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