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Cheap flights from San Diego to Cardiff from £788

This is the cheapest return flight price found by a momondo user in the last 72 hours by searching for a flight from San Diego to Cardiff departing on 22/9. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
1 adult, Economy, 0 bags
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Find the cheapest flights from San Diego to Cardiff

Cheap return flights

Enter your travel dates to find the best prices.
KLM Logo
13:40 - 09:15
SAN
-
CWL
35h 35m
1 stop
KLM Logo
09:45 - 11:50
CWL
-
SAN
34h 05m
1 stop
£788KLM
Tue, 22 Sep - Mon, 28 Sep
KLM Logo
13:40 - 09:15
SAN
-
CWL
35h 35m
1 stop
KLM Logo
09:45 - 11:50
CWL
-
SAN
34h 05m
1 stop
£790KLM
Tue, 22 Sep - Mon, 28 Sep
KLM Logo
13:35 - 16:45
SAN
-
CWL
19h 10m
2 stops
KLM Logo
09:45 - 11:50
CWL
-
SAN
34h 05m
1 stop
£792KLM
Tue, 22 Sep - Mon, 28 Sep
KLM Logo
07:00 - 09:15
SAN
-
CWL
18h 15m
2 stops
KLM Logo
09:45 - 11:50
CWL
-
SAN
34h 05m
1 stop
£793KLM
Tue, 22 Sep - Mon, 28 Sep
KLM Logo
06:20 - 09:15
SAN
-
CWL
18h 55m
2 stops
KLM Logo
09:45 - 11:50
CWL
-
SAN
34h 05m
1 stop
£794KLM
Tue, 22 Sep - Mon, 28 Sep
KLM Logo
07:00 - 09:15
SAN
-
CWL
18h 15m
2 stops
KLM Logo
09:45 - 23:43
CWL
-
SAN
21h 58m
2 stops
£799KLM
Wed, 23 Sep - Tue, 29 Sep
KLM Logo
06:20 - 09:15
SAN
-
CWL
18h 55m
2 stops
KLM Logo
17:15 - 15:19
CWL
-
SAN
30h 04m
2 stops
£800KLM
Tue, 22 Sep - Mon, 28 Sep
KLM Logo
07:00 - 09:15
SAN
-
CWL
18h 15m
2 stops
KLM Logo
09:45 - 23:43
CWL
-
SAN
21h 58m
2 stops
£800KLM
Wed, 23 Sep - Tue, 29 Sep
KLM Logo
06:20 - 09:15
SAN
-
CWL
18h 55m
2 stops
KLM Logo
17:15 - 15:19
CWL
-
SAN
30h 04m
2 stops
£801KLM
Tue, 22 Sep - Mon, 28 Sep
KLM Logo
13:40 - 16:45
SAN
-
CWL
19h 05m
1 stop
KLM Logo
09:45 - 22:29
CWL
-
SAN
20h 44m
2 stops
£837KLM
Tue, 28 Apr - Tue, 5 May

KLM flights from San Diego to Cardiff

Our best KLM deals on San Diego to Cardiff flight tickets
KLM
22 Sept
SAN13:40San Diego
35h 35m
1 stop
CWL09:15Cardiff Wales
28 Sept
CWL09:45Cardiff Wales
34h 05m
1 stop
SAN11:50San Diego
£788
KLM
22 Sept
SAN13:40San Diego
35h 35m
1 stop
CWL09:15Cardiff Wales
28 Sept
CWL09:45Cardiff Wales
34h 05m
1 stop
SAN11:50San Diego
£790
KLM
22 Sept
SAN13:35San Diego
19h 10m
2 stops
CWL16:45Cardiff Wales
28 Sept
CWL09:45Cardiff Wales
34h 05m
1 stop
SAN11:50San Diego
£792

momondo Fare Finder

 
Customise your flight search to find flights from San Diego 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, momondo users made 279,928 searches. Data last updated 1 April 2026.
Use the filters below to find and compare flights from San Diego to Cardiff that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

San DiegoCardiff

SAN - CWL

SANCWL

San Diego

Tue 22/9

13:40-09:15

1 stop35h 35m

Cardiff Wales

Mon 28/9

09:45-11:50

1 stop34h 05m

£788

San DiegoCardiff

SAN - CWL

SANCWL

San Diego

Tue 22/9

13:40-09:15

1 stop35h 35m

Cardiff Wales

Mon 28/9

09:45-11:50

1 stop34h 05m

£790

San DiegoCardiff

SAN - CWL

SANCWL

San Diego

Tue 22/9

13:35-16:45

2 stops19h 10m

Cardiff Wales

Mon 28/9

09:45-11:50

1 stop34h 05m

£792

San DiegoCardiff

SAN - CWL

SANCWL

San Diego

Tue 22/9

07:00-09:15

2 stops18h 15m

Cardiff Wales

Mon 28/9

09:45-11:50

1 stop34h 05m

£793

San DiegoCardiff

SAN - CWL

SANCWL

San Diego

Tue 22/9

06:20-09:15

2 stops18h 55m

Cardiff Wales

Mon 28/9

09:45-11:50

1 stop34h 05m

£794

San DiegoCardiff

SAN - CWL

SANCWL

San Diego

Wed 23/9

07:00-09:15

2 stops18h 15m

Cardiff Wales

Tue 29/9

09:45-23:43

2 stops21h 58m

£799

San DiegoCardiff

SAN - CWL

SANCWL

San Diego

Tue 22/9

06:20-09:15

2 stops18h 55m

Cardiff Wales

Mon 28/9

17:15-15:19

2 stops30h 04m

£800

San DiegoCardiff

SAN - CWL

SANCWL

San Diego

Wed 23/9

07:00-09:15

2 stops18h 15m

Cardiff Wales

Tue 29/9

09:45-23:43

2 stops21h 58m

£800

San DiegoCardiff

SAN - CWL

SANCWL

San Diego

Tue 22/9

06:20-09:15

2 stops18h 55m

Cardiff Wales

Mon 28/9

17:15-15:19

2 stops30h 04m

£801
Fastest return journey

San DiegoCardiff

SAN - CWL

SANCWL

San Diego

Tue 28/4

13:40-16:45

1 stop19h 05m

Cardiff Wales

Tue 5/5

09:45-22:29

2 stops20h 44m

£837

Flights are sorted by cheapest return flights first.

Sorted by cheapest first

When to book flights from San Diego to Cardiff

Are you open to changing your travel dates? Check out the ideal times to fly from San Diego to Cardiff according to our flight data. Find out which month and days have the cheapest flights.
Estimated return price

Cheap San Diego to Cardiff (SAN to CWL) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from San Diego to Cardiff

Fastest flight time

19h 00m

Direct flights

None
The fastest flight from San Diego to Cardiff takes 19h 00m
There are no direct flights from San Diego to Cardiff. There are no popular flight routes from San Diego to Cardiff.
Search flight deals

  • How far is San Diego to Cardiff Wales by plane?

    San Diego and Cardiff Wales are 5377.4 mi apart from one another. Typically, this will take 19h 00m by plane in normal conditions.

  • When did momondo last update prices for flights from San Diego Airport to Cardiff Wales Airport?

    Prices for flights from San Diego Airport to Cardiff Wales Airport refresh daily.

  • How old do you have to be to fly from San Diego Airport to Cardiff Wales Airport?

    The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from San Diego Airport to Cardiff Wales Airport.

  • What documentation or ID do you need to fly to Cardiff Wales Airport?

    The necessary travel and health documents for your Cardiff Wales Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

  • How do I get Price Alerts for flights from San Diego to Cardiff?

    Confirm your travel details to search for the latest offers for flights from San Diego to Cardiff. While browsing offers there will be the option to toggle “Price Alerts”. You’ll then receive updates when prices for the flight route increase or decrease.

  • How can I save money on flights from San Diego to Cardiff with momondo?

    Leverage our AI within our “Price Forecast” tool, which predicts if it’s better to book now or wait until prices decrease. You can strategically pick the best days to fly and save money on your trip by using our “Price Calendar” tool. “Explore” shows an overview of how much it costs to fly to anywhere from a selected city or airport. Our “Discover” content is a great option for travel inspiration and money-saving tips, while “Price Alerts” will update you when prices change, so you can book when fares are right.

  • How does momondo find its flight prices?

    We compare prices from 700+ competitors to help you find the price that works best for you. momondo operates in over 30 international markets, bringing you access to a wide range of fares and deals. Search for your travel using momondo for a diverse range of options from airlines and OTAs.

Travelling to a place near Cardiff?

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

Why use momondo?

Why should I use momondo to find a flight deal from San Diego to Cardiff?

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from San Diego to Cardiff for you.

Can I find flights from San Diego to Cardiff with flexible booking policies on momondo?

All flight searches from San Diego to Cardiff on momondo can be filtered to show those which offer flexible booking policies.

How can momondo help me find flights from San Diego to Cardiff?

Once you have performed a search for San Diego to Cardiff flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

I’m not ready to book a flight from San Diego to Cardiff right now. Can momondo alert me if prices change?

Of course. momondo tracks the price of San Diego to Cardiff flights. All you need is a valid email address and we will do the rest; it is that quick and easy.

An easier way to manage your Cardiff trip

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Find better results for your trip to the United Kingdom

Airports servicing Wales

Holyhead Anglesey Airport