HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
San Diego

$1,101+ Cheap flights from Cardiff (CWL) to San Diego (SAN)

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 1/16. Fares are subject to change and may not be available on all flights or dates of travel.
CWL — SAN
Jan 11 — Jan 181
Sun 1/11
Sun 1/18
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Cardiff to San Diego with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheap flight deals from Cardiff to San Diego

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 December 12, 2025.

This Trip.com deal was found by Cheapflights users on 12/11. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/125:15 pmCWL - SAN
3 stops51h 23mMultiple Airlines
Tue 12/2310:56 amSAN - CWL
3 stops45h 59mMultiple Airlines
Deal found 12/11$2,069
This KLM deal was found by Cheapflights users on 12/11. 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.
Fri 12/125:15 pmCWL - SAN
2 stops31h 05mKLM
Tue 12/236:15 amSAN - CWL
2 stops19h 35mKLM
Deal found 12/11$2,248

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 December 12, 2025.

Round-trip from

$1,101
(British Airways)
From Cardiff Wales to San Diego
Search Deals

Cheapflights Fare Finder

 
Customize 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 2,558,603 searches. Data last updated December 12, 2025.
Use the filters below to find and compare flights from Cardiff to San Diego that are best for you.

Fly from

Cardiff

Fly to

San Diego

Route

Depart

Return

Price

CardiffSan Diego

CWL - SAN

CWLSAN

Cardiff Wales

Fri 1/16

8:35 am-4:10 pm

2 stops39h 35m

San Diego

Mon 1/19

6:00 pm-8:05 am

2 stops54h 05m

$1,101

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/9

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 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 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?

    Airlines like British Airways fly from Cardiff to San Diego in about 39h 35m. The time it takes to get you to your destination can typically vary by up to . The distance between Cardiff and San Diego is about 5376 mi.

  • 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 vacation 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

Traveling to a place near San Diego?

Book flights to San Diego if you plan to visit one of these locations
El Cajon
Chula Vista
Coronado
La Mesa
Poway
Lemon Grove
Julian
National City

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.