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Cheap flights from Cardiff to San Diego from £920

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 23/7. Fares are subject to change and may not be available on all flights or dates of travel.
CWL — SAN
9 Jul — 16 Jul1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Cardiff to San Diego

Enter your travel dates to find the best prices.

Cheapest flights from Cardiff to San Diego
Explore the most affordable flight options available from Cardiff to San Diego. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 9 June 2026.

Thu 23/709:45
CWL
-
SAN
2 stops20h 16m
Delta
Thu 30/715:19
SAN
-
CWL
2 stops17h 26m
Delta
Deal found 8/6£920
Tue 21/717:15
CWL
-
SAN
2 stops35h 20m
Virgin Atlantic
Tue 28/721:55
SAN
-
CWL
2 stops27h 20m
Virgin Atlantic
Deal found 6/6£923
Thu 23/709:45
CWL
-
SAN
2 stops20h 16m
KLM
Thu 30/713:40
SAN
-
CWL
1 stop35h 35m
KLM
Deal found 8/6£930
Tue 21/709:45
CWL
-
SAN
2 stops21h 58m
Delta
Tue 28/713:40
SAN
-
CWL
1 stop19h 05m
Delta
Deal found 6/6£947
Sat 25/717:35
CWL
-
SAN
2 stops35h 01m
Virgin Atlantic
Fri 31/721:55
SAN
-
CWL
2 stops27h 20m
Virgin Atlantic
Deal found 6/6£983
Sun 19/709:50
CWL
-
SAN
2 stops21h 53m
Delta
Sun 26/706:15
SAN
-
CWL
2 stops19h 00m
Delta
Deal found 4/6£1,010
Tue 21/711:35
CWL
-
SAN
3 stops34h 35m
WestJet
Tue 28/715:30
SAN
-
CWL
2 stops34h 45m
WestJet
Deal found 6/6£1,011
Thu 23/711:35
CWL
-
SAN
3 stops34h 35m
Multiple Airlines
Thu 30/717:05
SAN
-
CWL
3 stops33h 10m
Multiple Airlines
Deal found 8/6£1,082
Thu 23/711:35
CWL
-
SAN
2 stops58h 35m
WestJet
Thu 30/717:00
SAN
-
CWL
2 stops33h 15m
WestJet
Deal found 8/6£1,204
Sat 25/711:35
CWL
-
SAN
3 stops32h 18m
Multiple Airlines
Fri 31/708:15
SAN
-
CWL
2 stops18h 00m
Multiple Airlines
Deal found 6/6£1,600

Find flight deals from Cardiff to San Diego

Discover tips and strategies to find the most affordable flight options for your journey from Cardiff (CWL) to San Diego (SAN). 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 9 June 2026.

Round-trip from

£920
Delta
  • Delta
  • 23/7-30/7
  • 4 total stops
  • 37h 42m total
  • Cardiff to San Diego
Search Deals

Cheapflights Fare Finder

 
Customise your flight search to find flights from Cardiff to San Diego 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 9 June 2026.
Use the filters below to find and compare flights from Cardiff to San Diego that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight
Fastest return journey

CardiffSan Diego

CWL - SAN

CWLSAN

Cardiff Wales

Thu 23/7

09:45-22:01

2 stops20h 16m

San Diego

Thu 30/7

15:19-16:45

2 stops17h 26m

£920

CardiffSan Diego

CWL - SAN

CWLSAN

Cardiff Wales

Tue 21/7

17:15-20:35

2 stops35h 20m

San Diego

Tue 28/7

21:55-09:15

2 stops27h 20m

£923

CardiffSan Diego

CWL - SAN

CWLSAN

Cardiff Wales

Thu 23/7

09:45-22:01

2 stops20h 16m

San Diego

Thu 30/7

13:40-09:15

1 stop35h 35m

£930

CardiffSan Diego

CWL - SAN

CWLSAN

Cardiff Wales

Tue 21/7

09:45-23:43

2 stops21h 58m

San Diego

Tue 28/7

13:40-16:45

1 stop19h 05m

£947

CardiffSan Diego

CWL - SAN

CWLSAN

Cardiff Wales

Sun 19/7

09:50-23:43

2 stops21h 53m

San Diego

Sun 26/7

06:15-09:15

2 stops19h 00m

£1,010

CardiffSan Diego

CWL - SAN

CWLSAN

Cardiff Wales

Tue 21/7

11:35-14:10

3 stops34h 35m

San Diego

Tue 28/7

15:30-10:15

2 stops34h 45m

£1,011

CardiffSan Diego

CWL - SAN

CWLSAN

Cardiff Wales

Thu 23/7

11:35-11:53

2 stops32h 18m

San Diego

Thu 30/7

17:05-10:15

3 stops33h 10m

£1,082

CardiffSan Diego

CWL - SAN

CWLSAN

Cardiff Wales

Thu 23/7

11:35-14:10

2 stops58h 35m

San Diego

Thu 30/7

17:00-10:15

2 stops33h 15m

£1,204

Flights are sorted by cheapest return flights first.

Deals found on 8/6

Sorted by cheapest first

Best time to book a flight from Cardiff to San Diego

Have a flexible travel schedule? Discover the best time to fly to San Diego from Cardiff 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.

Related info for your journey

Find useful and relevant information for your journey from Cardiff to San Diego. 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 Cardiff to San Diego?

    Departing from Cardiff to San Diego will take you 20h 16m. The distance between Cardiff and San Diego is about 5376 mi. This flight may include one or multiple stops.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Cardiff to San Diego 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 San Diego?

Book flights to San Diego if you plan to visit one of these locations
Coronado
El Cajon

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Can Cheapflights notify me if prices for flights from Cardiff to San Diego become cheaper?

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