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Cheap flights from Ireland to San Diego from £421

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 27/5. Fares are subject to change and may not be available on all flights or dates of travel.
DUB — SAN
22 Mar — 29 Mar1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Ireland to San Diego

Enter your travel dates to find the best prices.

Cheapest flights from Ireland to San Diego
Explore the most affordable flight options available from Ireland to San Diego. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 20 February 2026.

Fri 17/410:40
DUB
-
SAN
1 stop16h 37m
JetBlue
Tue 21/411:05
SAN
-
DUB
1 stop13h 15m
JetBlue
Deal found 19/2£485
Fri 3/409:30
DUB
-
SAN
1 stop16h 53m
Finnair
Sat 18/409:12
SAN
-
DUB
1 stop16h 33m
Finnair
Deal found 17/2£522
Mon 31/819:05
DUB
-
SAN
2 stops35h 50m
Scandinavian Airlines
Mon 21/910:00
SAN
-
DUB
2 stops41h 50m
Scandinavian Airlines
Deal found 17/2£549
Fri 27/213:25
DUB
-
SAN
1 stop30h 40m
Delta
Tue 3/311:16
SAN
-
DUB
2 stops20h 29m
Delta
Deal found 19/2£575
Wed 25/213:25
DUB
-
SAN
1 stop30h 40m
Delta
Tue 10/315:45
SAN
-
DUB
2 stops17h 00m
Delta
Deal found 16/2£577
Mon 2/313:25
DUB
-
SAN
1 stop30h 40m
Delta
Mon 9/313:02
SAN
-
DUB
1 stop12h 43m
Delta
Deal found 19/2£577
Wed 4/305:55
DUB
-
SAN
2 stops20h 50m
Delta
Wed 11/311:15
SAN
-
DUB
2 stops18h 25m
Delta
Deal found 19/2£582
Tue 1/909:30
DUB
-
SAN
1 stop21h 53m
Finnair
Tue 22/913:21
SAN
-
DUB
2 stops19h 54m
Finnair
Deal found 17/2£594

Find flight deals from Ireland to San Diego

Keep the following information in mind while searching for Ireland to San Diego flight deals. Data was last updated 20 February 2026.

Round-trip from

£485

One-way from

£421

Popular in

July

Cheapest in

May

Average price

£604
JetBlue
  • JetBlue
  • 17/4-21/4
  • 2 total stops
  • 29h 52m total
  • Ireland to San Diego
Search Deals
JetBlue
  • JetBlue
  • 27/5
  • 1 total stop
  • 17h 28m total
  • Ireland to San Diego
Search Deals
Highest demand for flights based on searches. 9% potential increase in price (£51 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease (£9 potential savings vs. average return price).
Search Deals
Average for round-trip flights in February 2026
Search Deals

Cheapflights Fare Finder

 
Customise your flight search to find flights from Ireland 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 20 February 2026.
Use the filters below to find and compare flights from Ireland to San Diego that are best for you.

Fly from

Ireland

Fly to

San Diego

Route

Depart

Return

Price

DublinSan Diego

DUB - SAN

DUBSAN

Dublin

Mon 2/3

13:25-12:05

1 stop30h 40m

San Diego

Mon 9/3

06:15-08:45

2 stops19h 30m

£578

DublinSan Diego

DUB - SAN

DUBSAN

Dublin

Wed 4/3

05:55-18:45

2 stops20h 50m

San Diego

Wed 11/3

11:15-12:40

2 stops18h 25m

£582

DublinSan Diego

DUB - SAN

DUBSAN

Dublin

Thu 5/3

20:40-16:10

1 stop27h 30m

San Diego

Sun 8/3

19:00-19:40

1 stop17h 40m

£608

DublinSan Diego

DUB - SAN

DUBSAN

Dublin

Tue 24/3

05:55-13:05

1 stop14h 10m

San Diego

Tue 21/4

06:15-08:20

2 stops18h 05m

£611

DublinSan Diego

DUB - SAN

DUBSAN

Dublin

Tue 3/3

08:50-20:20

2 stops19h 30m

San Diego

Mon 9/3

19:00-17:05

1 stop15h 05m

£612

DublinSan Diego

DUB - SAN

DUBSAN

Dublin

Tue 3/3

08:50-22:30

2 stops21h 40m

San Diego

Tue 10/3

13:34-19:40

2 stops23h 06m

£612

DublinSan Diego

DUB - SAN

DUBSAN

Dublin

Mon 2/3

08:50-20:20

2 stops19h 30m

San Diego

Tue 10/3

14:46-19:40

2 stops21h 54m

£612

DublinSan Diego

DUB - SAN

DUBSAN

Dublin

Thu 5/3

20:40-20:20

2 stops31h 40m

San Diego

Tue 10/3

14:46-19:40

2 stops21h 54m

£612

DublinSan Diego

DUB - SAN

DUBSAN

Dublin

Wed 1/4

08:55-11:50

1 stop34h 55m

San Diego

Wed 15/4

17:00-16:40

2 stops15h 40m

£616

DublinSan Diego

DUB - SAN

DUBSAN

Dublin

Wed 27/5

10:40-20:08

1 stop17h 28m

£421

Flights are sorted by cheapest return flights first.

Deals found on 18/2

Showing 1-10 of 16 results
1
2

Best time to book a flight from Ireland to San Diego

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

Cheapflights Insights

Everything you need to know about your flight from Ireland to San Diego

What is the cheapest month to book a flight from Ireland to San Diego?

Currently, September is the cheapest month in which you can book a flight from Ireland to San Diego (average of £383). Flying from Ireland to San Diego in July is currently the most expensive (average of £601). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

Related info for your journey

Find useful and relevant information for your journey from Ireland to San Diego. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly into for flights to San Diego from Ireland?

    For a flight from Ireland to San Diego, you will be flying into San Diego. San Diego (SAN) is just 2.6 mi from the center of the city.

  • How long is the flight from Ireland to San Diego?

    Delta and British Airways can get you from Ireland to San Diego in just under 27h 30m. Your travel time can differ by up to 3h 10m. Ireland and San Diego are separated by a distance of 5194 mi. Both multi-stop and direct flights can be found to your destination and back.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Ireland 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.

  • What is the cheapest month to book a flight from Ireland to San Diego?

    Currently, September is the cheapest month in which you can book a flight from Ireland to San Diego (average of £383). Flying from Ireland to San Diego in July is currently the most expensive (average of £601). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

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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Alternative routes for Ireland to San Diego

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Fly with Cheapflights

Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights from Ireland to San Diego?

Cheapflights helps you search for flights from Ireland to San Diego via 900+ travel sites so you don’t have to. After performing a flight search, users can also filter their flight selection by filtering for price, number of stops, airlines, and so on.

Why should you use Cheapflights to find cheap flight tickets from Ireland to San Diego?

Cheapflights helps you find that perfect flight to San Diego from Ireland by searching from hundreds of airlines and agencies you know and love. We are also free to use, in case you were wondering!

Can Cheapflights find flights from Ireland to San Diego with no change fees?

Certainly. Search results for flights to San Diego from Ireland shown to you on Cheapflights can be narrowed down with different useful search filters, which includes flexible booking options.

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

Yes, Cheapflights offers price alerts on Ireland to San Diego flights so you can book your travel at the perfect time. Price Alerts can be enabled by clicking the bell icon next to the flight deals above and providing your email address where you want to receive the alerts.

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