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Cheap flights from San Francisco Bay Area to Cardiff from £671

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 2/5. Fares are subject to change and may not be available on all flights or dates of travel.
SFO — CWL
21 Apr — 28 Apr1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from San Francisco Bay Area to Cardiff

Enter your travel dates to find the best prices.

Cheapest flights from San Francisco Bay Area to Cardiff
Explore the most affordable flight options available from San Francisco Bay Area to Cardiff. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 22 March 2026.

Sat 2/517:40
SFO
-
CWL
1 stop19h 40m
Multiple Airlines
Sat 9/507:30
CWL
-
SFO
1 stop16h 25m
Multiple Airlines
Deal found 18/3£671
Wed 6/513:45
SFO
-
CWL
1 stop19h 00m
KLM
Wed 13/517:15
CWL
-
SFO
1 stop26h 30m
KLM
Deal found 22/3£735
Wed 6/507:25
SFO
-
CWL
2 stops17h 50m
Multiple Airlines
Wed 13/509:45
CWL
-
SFO
2 stops22h 20m
Multiple Airlines
Deal found 22/3£746
Wed 6/511:35
SJC
-
CWL
2 stops21h 10m
Delta
Wed 13/509:45
CWL
-
SJC
2 stops21h 15m
Delta
Deal found 22/3£746
Mon 4/517:35
SFO
-
CWL
1 stop21h 15m
Multiple Airlines
Mon 11/522:10
CWL
-
SFO
2 stops31h 45m
Multiple Airlines
Deal found 19/3£757
Sun 3/513:45
SFO
-
CWL
1 stop35h 30m
Delta
Thu 21/509:45
CWL
-
SFO
1 stop34h 00m
Delta
Deal found 18/3£772
Tue 5/512:34
OAK
-
CWL
2 stops20h 11m
Multiple Airlines
Tue 12/509:45
CWL
-
OAK
2 stops38h 40m
Multiple Airlines
Deal found 20/3£774
Sat 2/523:57
SFO
-
CWL
2 stops25h 18m
Delta
Thu 21/509:45
CWL
-
SFO
1 stop34h 00m
Delta
Deal found 18/3£776
Sun 3/513:45
SFO
-
CWL
1 stop35h 30m
Delta
Tue 19/509:45
CWL
-
SFO
2 stops22h 47m
Delta
Deal found 18/3£779
Sat 2/523:57
SFO
-
CWL
2 stops25h 18m
Delta
Tue 19/509:45
CWL
-
SFO
2 stops22h 47m
Delta
Deal found 18/3£783
Mon 4/507:20
SJC
-
CWL
2 stops25h 25m
KLM
Mon 11/517:15
CWL
-
SJC
2 stops30h 54m
KLM
Deal found 19/3£784
Thu 7/513:45
SFO
-
CWL
1 stop35h 30m
Delta
Thu 21/509:45
CWL
-
SFO
1 stop34h 00m
Delta
Deal found 18/3£809

Find flight deals from San Francisco Bay Area to Cardiff

Keep the following information in mind while searching for San Francisco Bay Area to Cardiff flight deals. Data was last updated 22 March 2026.

Round-trip from

£671
2/5-9/5
  • 2/5-9/5
  • 2 total stops
  • 36h 05m total
  • San Francisco Bay Area to Cardiff
Search Deals

Cheapflights Fare Finder

 
Customise your flight search to find flights from San Francisco Bay Area 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 858,174 searches. Data last updated 22 March 2026.
Use the filters below to find and compare flights from San Francisco Bay Area 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

Wed 6/5

06:20-09:15

2 stops18h 55m

Cardiff Wales

Wed 13/5

17:15-11:45

1 stop26h 30m

£739
Fastest return journey

San FranciscoCardiff

SFO - CWL

SFOCWL

San Francisco

Wed 6/5

07:25-09:15

2 stops17h 50m

Cardiff Wales

Wed 13/5

09:45-00:05

2 stops22h 20m

£746

San JoseCardiff

SJC - CWL

SJCCWL

San Jose

Wed 6/5

11:35-16:45

2 stops21h 10m

Cardiff Wales

Wed 13/5

09:45-23:00

2 stops21h 15m

£746

OaklandCardiff

OAK - CWL

OAKCWL

Oakland

Tue 5/5

12:34-16:45

2 stops20h 11m

Cardiff Wales

Tue 12/5

09:45-16:25

2 stops38h 40m

£774

San FranciscoCardiff

SFO - CWL

SFOCWL

San Francisco

Sat 2/5

23:57-09:15

2 stops25h 18m

Cardiff Wales

Tue 19/5

09:45-00:32

2 stops22h 47m

£783

San JoseCardiff

SJC - CWL

SJCCWL

San Jose

Mon 4/5

07:20-16:45

2 stops25h 25m

Cardiff Wales

Mon 11/5

17:15-16:09

2 stops30h 54m

£784

San FranciscoCardiff

SFO - CWL

SFOCWL

San Francisco

Fri 1/5

22:30-09:15

2 stops26h 45m

Cardiff Wales

Thu 21/5

09:45-00:32

2 stops22h 47m

£821

San FranciscoCardiff

SFO - CWL

SFOCWL

San Francisco

Mon 4/5

10:32-16:45

2 stops22h 13m

Cardiff Wales

Mon 11/5

09:45-00:32

2 stops22h 47m

£821

San FranciscoCardiff

SFO - CWL

SFOCWL

San Francisco

Mon 4/5

13:45-09:15

1 stop35h 30m

Cardiff Wales

Mon 11/5

17:15-11:45

1 stop26h 30m

£835

San JoseCardiff

SJC - CWL

SJCCWL

San Jose

Sat 2/5

07:20-16:45

2 stops25h 25m

Cardiff Wales

Sat 9/5

09:45-20:05

2 stops18h 20m

£858

Flights are sorted by cheapest return flights first.

Deals found on 22/3

Showing 1-10 of 17 resultsSorted by cheapest first
1
2

Best time to book a flight from San Francisco Bay Area to Cardiff

Have a flexible travel schedule? Discover the best time to fly to Cardiff from San Francisco Bay Area with our price prediction graph.
Estimated return 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.

Cheapflights Insights

Everything you need to know about your flight from San Francisco Bay Area to Cardiff
No data available for this route at this time. Please check back soon.

Reviews of airlines servicing Cardiff

Get insights into the airlines that provide service to Cardiff. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Cardiff. Reviews last updated 22 March 2026.
Check out reviews from past customers who have flown with KLM from San Francisco Bay Area to Cardiff to help guide your decision. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
KLM
7.8
Good
1,477 reviews
Check prices

Overall

7.8

Boarding

7.8

Entertainment

7.1

Crew

8.4

Comfort

7.6

Food

7.3

Reviews

1 / 20
2.0
Mediocre

Anonymous,Feb 2026

EZE - SCL

It was a short trip The aeroplane was delay I arrived in Chile late and I lost my fly with Qantas
KLM
7.8
Good
1,477 reviews
KLM
7.8
Good
1,477 reviews
Check prices

Overall

7.8

Boarding

7.8

Entertainment

7.1

Crew

8.4

Comfort

7.6

Food

7.3

Reviews

1 / 20
2.0
Mediocre

Anonymous,Feb 2026

EZE - SCL

It was a short trip The aeroplane was delay I arrived in Chile late and I lost my fly with Qantas

Related info for your journey

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

  • What airport do you fly into for flights to Cardiff from San Francisco Bay Area?

    Cardiff Wales (CWL) is the airport you will fly into if you book a flight from San Francisco Bay Area to Cardiff. It is only a 9.1 mi journey from Cardiff Wales (CWL) to Cardiff’s city center.

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

    There are many flights that can get you from San Francisco Bay Area to Cardiff in 18h 55m. Fly via KLM or Delta to get the fastest option. The distance between San Francisco Bay Area and Cardiff is about 5267 mi. When browsing for deals, the options you’ll see will be for both direct flights and flights with stops.

  • What are the most popular routes from San Francisco Bay Area to Cardiff?

    While some choose either San Francisco - Cardiff Wales or Oakland - Cardiff Wales, San Jose - Cardiff Wales is the most popular route from San Francisco Bay Area to Cardiff.

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

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

  • How can I find direct flights from San Francisco Bay Area 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 Bay Area to Cardiff.

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

    Yes. Cheapflights offers flight deals from San Francisco Bay Area 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

Travelling to a place near Cardiff?

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

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Top airline flying from San Francisco Bay Area to Cardiff

Discover the top airline that operate flights from San Francisco Bay Area to Cardiff. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 858,174 searches. Data last updated 22 March 2026.
AirlineCheapestAverageFlexibilityOn-time
KLMCheapest£575Average£618FlexibilityNo cancel feeOn-time75%
Search KLM flights

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How does Cheapflights help users find flights from San Francisco Bay Area to Cardiff?

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Why should you use Cheapflights to find cheap flight tickets from San Francisco Bay Area to Cardiff?

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Can Cheapflights find flights from San Francisco Bay Area to Cardiff with no change fees?

Users can book flights with no change fees policies with our dedicated filters. Book flights from San Francisco Bay Area to Cardiff flexibly with Cheapflights today.

Can Cheapflights notify me if prices for flights from San Francisco Bay Area to Cardiff become cheaper?

Yes, Cheapflights offers price alerts on San Francisco Bay Area to Cardiff flights so you can book your travel at the perfect time. Price Alerts can be enabled by clicking the bell icon next to the flight deals above and providing your email address where you want to receive the alerts.

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