How long is the flight from San Diego to Cardiff?

Delta and KLM can get you from San Diego to Cardiff in just under 20h 53m. Your travel time can differ by up to 3h 02m. The distance from San Diego to Cardiff is about 5376 mi. This flight may include one or multiple stops.

In terms of precipitation, rainfall in Cardiff ranges from 2.0 - 3.5 inches per month. January is typically the wettest month, when rainfall can reach 3.5 in. April is typically the driest time to visit Cardiff when rainfall is around 2.0 in.

If weather is an important factor for your trip to Cardiff, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 64.4 F. Travelers looking to avoid the cold should look outside of December, when temperatures are typically at their lowest (around 39.2 F).

What is the cheapest time of day to fly from SAN to CWL?

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from San Diego to Cardiff as you normally would.

Most accurate provider : When it comes to deals on San Diego-Cardiff flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on San Diego-Cardiff flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from San Diego-Cardiff flight searches over the past month and is updated monthly.

Most trusted provider : When it comes to deals on San Diego-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 Diego-Cardiff flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

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

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

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

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

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

Yes. Cheapflights offers flight deals from San Diego 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.

$1,425+ Flights from San Diego to Cardiff

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1. Tell us where you want to go

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Cheap flight deals from San Diego to Cardiff

Cheapest flights from San Diego to Cardiff
Explore the most affordable flight options available from San Diego to Cardiff. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 29, 2026.

Fri 3/1310:00 am

SAN

CWL

2 stops23h 55m

Delta

Fri 3/2010:20 am

CWL

SAN

2 stops20h 51m

Delta

Deal found 1/27

$1,425

Fri 3/131:02 pm

SAN

CWL

2 stops20h 53m

KLM

Fri 3/205:15 pm

CWL

SAN

1 stop26h 50m

KLM

Deal found 1/27

$1,525

Fri 3/137:00 pm

SAN

CWL

3 stops33h 30m

Multiple Airlines

Fri 3/208:35 am

CWL

SAN

3 stops22h 24m

Multiple Airlines

Deal found 1/27

$5,547

Best flights from San Diego to Cardiff
Discover carefully curated flight deals from San Diego to Cardiff that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated January 29, 2026.

Fri 3/1310:00 am

SAN

CWL

2 stops23h 55m

Delta

Fri 3/2010:20 am

CWL

SAN

2 stops20h 51m

Delta

Deal found 1/27

$1,425

Fri 3/131:02 pm

SAN

CWL

2 stops20h 53m

KLM

Fri 3/205:15 pm

CWL

SAN

1 stop26h 50m

KLM

Deal found 1/27

$1,525

Fri 3/137:00 pm

SAN

CWL

3 stops33h 30m

Multiple Airlines

Fri 3/208:35 am

CWL

SAN

3 stops22h 24m

Multiple Airlines

Deal found 1/27

$5,547

Find flight deals from San Diego to Cardiff

Most accurate provider	FlightHub 3 stars
Most trusted provider	FlightHub 3 stars
Round-trip from	$1,425 (Delta)

Provider with most accurate pricing for San Diego-Cardiff Wales flight deals.

Search Deals

Provider most trusted by Cheapflights users for San Diego-Cardiff Wales flights.

Search Deals

From San Diego to Cardiff Wales

Search Deals

Fly from

Fly to

Route

Depart

Return

Price

San DiegoCardiff

SAN - CWL

SANCWL

San Diego

Fri 3/13

10:00 am-4:55 pm

2 stops23h 55m

Cardiff Wales

Fri 3/20

10:20 am-12:11 am

2 stops20h 51m

$1,425

San DiegoCardiff

SAN - CWL

SANCWL

San Diego

Fri 3/13

1:02 pm-4:55 pm

2 stops20h 53m

Cardiff Wales

Fri 3/20

5:15 pm-1:05 pm

1 stop26h 50m

$1,525

San DiegoCardiff

SAN - CWL

SANCWL

San Diego

Fri 3/13

7:00 pm-11:30 am

3 stops33h 30m

Cardiff Wales

Fri 3/20

8:35 am-11:59 pm

3 stops22h 24m

$5,547

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/27

Compare providers for flights from San Diego to Cardiff

Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from San Diego to Cardiff in January.

Provider	Price Accuracy	Trust Score*
Expedia	Price Accuracy1 star	Trust Score*3 stars
FlightHub	Price Accuracy3 stars	Trust 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 Diego-Cardiff flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on San Diego-Cardiff flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from San Diego-Cardiff flight searches over the past month and is updated monthly.
Most trusted provider: When it comes to deals on San Diego-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 Diego-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 Diego to Cardiff

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

How long is the flight from San Diego to Cardiff?
Delta and KLM can get you from San Diego to Cardiff in just under 20h 53m. Your travel time can differ by up to 3h 02m. The distance from San Diego to Cardiff is about 5376 mi. This flight may include one or multiple stops.
Can I find deals for flights from San Diego to Cardiff that include hotel bookings?
Yes. In addition to deals on San Diego to Cardiff flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from San Diego to Cardiff?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from San Diego to Cardiff.
Can I find deals for business class flights from San Diego to Cardiff?
Yes. Cheapflights offers flight deals from San Diego 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.

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$1,425+ Cheap flights from San Diego (SAN) 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 3/13. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from San Diego to Cardiff with Cheapflights

1. Tell us where you want to go

2. Select your favorite providers

3. Compare prices and book

Cheap flight deals from San Diego to Cardiff

Cheapest flights from San Diego to CardiffExplore the most affordable flight options available from San Diego to Cardiff. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 29, 2026.

Explore the most affordable flight options available from San Diego to Cardiff. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 29, 2026.

Find flight deals from San Diego to Cardiff

Most accurate provider

Most trusted provider

Round-trip from

Cheapflights Fare Finder

Use the filters below to find and compare flights from San Diego to Cardiff that are best for you.

Compare providers for flights from San Diego 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 Diego to Cardiff in January.

Best time to book a flight from San Diego to Cardiff

Have a flexible travel schedule? Discover the best time to fly to Cardiff from San Diego with our price prediction graph.

Related info for your journey

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

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

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

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

Traveling to a place near Cardiff?

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Cheapest flights from San Diego to Cardiff
Explore the most affordable flight options available from San Diego to Cardiff. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 29, 2026.