Cheap flights from Cardiff to San Diego from £839
This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 26/3. Fares are subject to change and may not be available on all flights or dates of travel.
Find flight deals from Cardiff to San Diego
Best flights from Cardiff to San DiegoDiscover carefully curated flight deals from Cardiff to San Diego that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 28 October 2025.
Discover carefully curated flight deals from Cardiff to San Diego that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 28 October 2025.
Cheap 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 28 October 2025.
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Fly from
Fly to
Route
Depart
Return
Price
CardiffSan Diego
CWL - SAN
CWLSAN
Cardiff Wales
Thu 26/3
10:20-12:19
2 stops32h 59m
San Diego
Mon 30/3
16:30-09:15
2 stops56h 45m
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.
Related info for your journey
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Alternative routes for Cardiff to San Diego
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How does Cheapflights help users find flights from Cardiff to San Diego?
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Why should you use Cheapflights to find cheap flight tickets from Cardiff to San Diego?
It’s simple! Cheapflights, which is free to use for everyone, saves millions of users time and money every year by helping them find the cheapest and most suitable flights from Cardiff to San Diego.
Can Cheapflights find flights from Cardiff to San Diego with no change fees?
Yes, we can. To see specific flights from Cardiff to San Diego with no change fees, users can toggle flexible booking options after using the search form above to find flights.
Can Cheapflights notify me if prices for flights from Cardiff to San Diego become cheaper?
Yes! Start tracking prices for Cardiff to San Diego flights today and get alerted whenever prices for these flights change. To access this feature, click the bell icon next to the flight deals above, which will prompt you for a valid email address to receive your alerts.