HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
San Diego

$382+ Cheap flights from Ireland to San Diego (SAN)

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 5/12. Fares are subject to change and may not be available on all flights or dates of travel.
DUB — 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 Ireland 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 Ireland to San Diego

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 December 12, 2025.

This United Airlines deal was found by Cheapflights users on 12/10. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/179:30 amDUB - SAN
2 stops18h 22mUnited Airlines
Sun 12/2110:30 pmSAN - DUB
1 stop25h 40mUnited Airlines
Deal found 12/10$907
This Finnair 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 Finnair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/1111:30 amDUB - SAN
2 stops18h 23mMultiple Airlines
Sat 12/2710:42 amSAN - DUB
1 stop12h 28mMultiple Airlines
Deal found 12/11$1,014
This Expedia deal was found by Cheapflights users on 12/10. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/1710:40 amDUB - SAN
2 stops17h 12mLufthansa
Sun 12/2112:11 pmSAN - DUB
2 stops35h 59mLufthansa
Deal found 12/10$1,018
This Delta deal was found by Cheapflights users on 12/10. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/115:55 amDUB - SAN
2 stops21h 22mDelta
Sat 12/276:20 amSAN - DUB
2 stops17h 25mDelta
Deal found 12/10$1,026
This United Airlines deal was found by Cheapflights users on 12/10. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/129:00 amDUB - SAN
2 stops22h 42mUnited Airlines
Sat 12/203:00 pmSAN - DUB
2 stops33h 10mUnited Airlines
Deal found 12/10$1,038
This United Airlines deal was found by Cheapflights users on 12/10. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/2910:40 amDUB - SAN
2 stops19h 52mUnited Airlines
Fri 1/167:00 amSAN - DUB
1 stop17h 10mUnited Airlines
Deal found 12/10$1,081
This Delta 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/298:55 amDUB - SAN
2 stops20h 43mDelta
Fri 1/1610:00 pmSAN - DUB
1 stop26h 45mDelta
Deal found 12/11$1,132
This American Airlines 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/267:50 amSNN - SAN
2 stops20h 09mAmerican Airlines
Tue 12/303:03 pmSAN - SNN
2 stops36h 27mAmerican Airlines
Deal found 12/11$1,133
This Finnair deal was found by Cheapflights users on 12/10. 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 Finnair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/2912:55 pmDUB - SAN
1 stop19h 04mMultiple Airlines
Fri 1/166:00 pmSAN - DUB
1 stop17h 50mMultiple Airlines
Deal found 12/10$1,160
This lastminute.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 lastminute.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/268:05 pmSNN - SAN
1 stop28h 05mMultiple Airlines
Tue 12/307:14 amSAN - SNN
2 stops20h 16mMultiple Airlines
Deal found 12/11$1,190
This lol.travel 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 lol.travel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/277:50 amSNN - SAN
1 stop16h 20mMultiple Airlines
Wed 12/3110:42 amSAN - SNN
2 stops16h 48mMultiple Airlines
Deal found 12/11$1,256
This American Airlines 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/277:50 amSNN - SAN
2 stops32h 43mAmerican Airlines
Wed 12/317:14 amSAN - SNN
2 stops20h 16mAmerican Airlines
Deal found 12/11$1,356

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 December 12, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$646
(lastminute.com)

One-way from

$382
(Mytrip)

Popular in

August

Cheapest in

January

Average price

$882
Provider with most accurate pricing for Dublin-San Diego flight deals.
Search Deals
Provider most trusted by Cheapflights users for Dublin-San Diego flights.
Search Deals
From Ireland to San Diego
Search Deals
One-way flight from Ireland to San Diego
Search Deals
Highest demand for flights based on searches. 11% potential increase in price ($110 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease ($16 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in December 2025
Search Deals

Cheapflights Fare Finder

 
Customize 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 2,558,603 searches. Data last updated December 12, 2025.
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

Fri 1/16

12:30 pm-9:05 pm

2 stops40h 35m

San Diego

Thu 1/29

2:55 pm-6:20 pm

2 stops19h 25m

$646

DublinSan Diego

DUB - SAN

DUBSAN

Dublin

Wed 2/4

7:05 pm-10:47 pm

2 stops35h 42m

San Diego

Sun 2/8

10:45 am-11:45 am

2 stops41h 00m

$657

DublinSan Diego

DUB - SAN

DUBSAN

Dublin

Mon 1/26

12:30 pm-10:47 pm

2 stops42h 17m

San Diego

Mon 2/2

2:55 pm-11:45 am

2 stops36h 50m

$667

DublinSan Diego

DUB - SAN

DUBSAN

Dublin

Wed 2/11

12:30 pm-11:04 pm

2 stops42h 34m

San Diego

Wed 2/18

10:37 am-6:20 pm

2 stops23h 43m

$667

DublinSan Diego

DUB - SAN

DUBSAN

Dublin

Sun 1/18

10:10 am-12:05 am

2 stops45h 55m

San Diego

Sat 1/31

2:55 pm-11:45 am

2 stops36h 50m

$761

DublinSan Diego

DUB - SAN

DUBSAN

Dublin

Fri 1/16

5:55 am-6:58 pm

2 stops21h 03m

San Diego

Thu 1/29

11:43 am-3:45 pm

2 stops20h 02m

$802

DublinSan Diego

DUB - SAN

DUBSAN

Dublin

Fri 2/6

12:05 pm-10:50 pm

2 stops18h 45m

San Diego

Fri 2/13

6:00 pm-7:50 pm

1 stop17h 50m

$803

DublinSan Diego

DUB - SAN

DUBSAN

Dublin

Sun 1/25

8:50 am-8:37 pm

2 stops19h 47m

San Diego

Sun 2/1

10:15 pm-8:45 am

1 stop26h 30m

$805

DublinSan Diego

DUB - SAN

DUBSAN

Dublin

Mon 1/26

6:00 pm-11:45 am

2 stops49h 45m

San Diego

Mon 2/2

9:10 am-8:20 am

1 stop15h 10m

$805

ShannonSan Diego

SNN - SAN

SNNSAN

Shannon

Mon 1/26

7:50 am-4:10 pm

1 stop16h 20m

San Diego

Mon 2/2

6:00 pm-4:45 pm

1 stop14h 45m

$813

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/9

Showing 1-10 of 22 results
1
2
3

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 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.

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, June is the cheapest month in which you can book a flight from Ireland to San Diego (average of $486). Flying from Ireland to San Diego in July is currently the most expensive (average of $807). 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?

    Scandinavian Airlines, Aer Lingus, and British Airways can get you from Ireland to San Diego in just under 16h 20m. Your travel time can differ by up to 24h 15m. Airlines will cover a distance of 5132 mi. Both multi-stop and nonstop flights can be found to your destination and back.

  • What are the cheapest airlines to fly from Ireland to San Diego one-way?

    The cheapest airlines for a one-way flight from Ireland to San Diego are Aer Lingus ($553), British Airways ($573), and American Airlines ($672).

  • What are the most popular routes from Ireland to San Diego?

    The most popular route from Ireland to San Diego is Dublin - San Diego. You may also consider Shannon - San Diego or Cork - San Diego.

  • 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 vacation 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, June is the cheapest month in which you can book a flight from Ireland to San Diego (average of $486). Flying from Ireland to San Diego in July is currently the most expensive (average of $807). 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

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.

Alternative routes for Ireland to San Diego

See prices for flight routes from nearby airports that may be better suited for you.
Charles de Gaulle to Los Angeles flights
Heathrow to Los Angeles flights
Frankfurt to Los Angeles flights
Orly to Los Angeles flights
Charles de Gaulle to San Francisco flights
Frederic Chopin to Los Angeles flights
Heathrow to Las Vegas flights
Charles de Gaulle to Las Vegas flights
Frankfurt to Las Vegas flights
Heathrow to San Francisco flights
Frankfurt to San Francisco flights
Orly to Las Vegas flights
Malpensa to Los Angeles flights
Munich to San Francisco flights
Beauvais-Tille to Los Angeles flights
Munich to Los Angeles flights
Linate to Los Angeles flights
Frankfurt to Ontario flights
Gatwick to Los Angeles flights
Amsterdam to Los Angeles flights
Frankfurt to Santa Ana flights
Bruxelles-National to Los Angeles flights
Vienna to San Francisco flights
London City to Los Angeles flights
Charles de Gaulle to Burbank flights
Vienna to Los Angeles flights
Leonardo da Vinci/Fiumicino to Los Angeles flights
Gatwick to Las Vegas flights
Stansted to Los Angeles flights
Barcelona-El Prat to Los Angeles flights
Zurich to Los Angeles flights
Heathrow to Ontario flights
Zurich to San Francisco flights
Duesseldorf Intl to Los Angeles flights
Madrid to Los Angeles flights
Gatwick to San Francisco flights
Bruxelles-National to Burbank flights
London City to Las Vegas flights
Orly to San Francisco flights
Frankfurt-Hahn to Los Angeles flights
Heathrow to Santa Ana flights
Luton to Los Angeles flights
London City to San Francisco flights
Berlin to Los Angeles flights
Frederic Chopin to San Francisco flights

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.