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Cheap flights from Ireland to San Diego from £344

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 26/1. Fares are subject to change and may not be available on all flights or dates of travel.
DUB — SAN
5 Dec — 12 Dec1
1 adult
1 adult, Economy, 0 bags

Cheap 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 5 November 2025.

Round-trip from

£497

One-way from

£344

Popular in

August

Cheapest in

January

Average price

£703
Scandinavian Airlines
  • Scandinavian Airlines
  • 20/2-24/2
  • 4 total stops
  • 59h 13m total
  • Ireland to San Diego
Search Deals
Aer Lingus
  • Aer Lingus
  • 26/1
  • 1 total stop
  • 28h 25m total
  • Ireland to San Diego
Search Deals
Highest demand for flights based on searches. 11% potential increase in price (£60 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (£10 potential savings vs. average return price).
Search Deals
Average for round-trip flights in November 2025
Search Deals

Find 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 5 November 2025.

Sun 23/1110:10DUB - SAN
2 stops20h 45mScandinavian Airlines
Tue 9/1216:04SAN - DUB
2 stops18h 16mScandinavian Airlines
Deal found 4/11£580
Wed 12/1108:50DUB - SAN
2 stops19h 44mDelta
Mon 17/1112:16SAN - DUB
2 stops19h 29mDelta
Deal found 4/11£615
Sun 23/1109:00DUB - SAN
1 stop34h 53mUnited Airlines
Tue 9/1211:02SAN - DUB
2 stops15h 18mUnited Airlines
Deal found 4/11£617
Mon 10/1105:55DUB - SAN
2 stops17h 32mKLM
Sun 23/1112:16SAN - DUB
1 stop35h 29mKLM
Deal found 3/11£619
Mon 22/1211:30DUB - SAN
2 stops17h 32mMultiple Airlines
Mon 12/118:00SAN - DUB
1 stop17h 40mMultiple Airlines
Deal found 4/11£620
Thu 27/1113:25DUB - SAN
2 stops28h 27mDelta
Sun 30/1109:59SAN - DUB
2 stops18h 41mDelta
Deal found 3/11£620
Thu 11/1211:30DUB - SAN
2 stops18h 23mMultiple Airlines
Sat 27/1207:14SAN - DUB
1 stop15h 56mMultiple Airlines
Deal found 5/11£623

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 5 November 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

Wed 21/1

08:45-16:10

1 stop15h 25m

San Diego

Wed 4/2

18:00-17:45

1 stop15h 45m

£566

DublinSan Diego

DUB - SAN

DUBSAN

Dublin

Sun 23/11

10:10-22:55

2 stops20h 45m

San Diego

Tue 9/12

16:04-18:20

2 stops18h 16m

£580

DublinSan Diego

DUB - SAN

DUBSAN

Dublin

Fri 20/2

18:15-16:10

1 stop29h 55m

San Diego

Tue 24/2

18:00-17:00

1 stop15h 00m

£607

DublinSan Diego

DUB - SAN

DUBSAN

Dublin

Thu 19/2

20:40-16:10

1 stop27h 30m

San Diego

Sun 22/2

18:00-16:50

1 stop14h 50m

£607

DublinSan Diego

DUB - SAN

DUBSAN

Dublin

Sun 23/11

09:00-11:53

1 stop34h 53m

San Diego

Tue 9/12

06:30-08:10

2 stops17h 40m

£616

DublinSan Diego

DUB - SAN

DUBSAN

Dublin

Thu 27/11

13:25-09:52

2 stops28h 27m

San Diego

Sun 30/11

06:24-07:45

1 stop17h 21m

£617

DublinSan Diego

DUB - SAN

DUBSAN

Dublin

Mon 22/12

11:30-21:02

2 stops17h 32m

San Diego

Mon 12/1

18:00-19:40

1 stop17h 40m

£620

DublinSan Diego

DUB - SAN

DUBSAN

Dublin

Thu 11/12

11:30-19:02

1 stop15h 32m

San Diego

Sat 27/12

10:42-07:10

1 stop12h 28m

£623

DublinSan Diego

DUB - SAN

DUBSAN

Dublin

Mon 26/1

19:45-16:10

1 stop28h 25m

£344

DublinSan Diego

DUB - SAN

DUBSAN

Dublin

Wed 14/1

08:45-16:10

1 stop15h 25m

£425

Flights are sorted by cheapest return flights first.

Deals found on 3/11

Showing 1-10 of 17 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, June is the cheapest month in which you can book a flight from Ireland to San Diego (average of £372). Flying from Ireland to San Diego in July is currently the most expensive (average of £617). 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.

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

Find hourly flight availability from Ireland to San Diego. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 5 November 2025.

Unlike in the morning, when flights are generally more expensive, you can save up to 27% on flights from Ireland to San Diego by exploring options for tickets in the evening.

Reviews of airlines servicing San Diego

Get insights into the airlines that provide service to San Diego. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to San Diego. Reviews last updated 5 November 2025.
Get a feel of what it's like to fly with United Airlines and British Airways from Ireland to San Diego by reading reviews from past customers. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
United Airlines
7.4
Good
9,001 reviews
Check prices

Food

6.6

Crew

8.1

Entertainment

7.1

Overall

7.4

Comfort

7.3

Boarding

7.7

Reviews

1 / 20
10.0
Excellent

Anonymous,Sept 2025

FRA - SFO

Lufthansa was amazing, I wish United States based airlines operated like them.
United Airlines
7.4
Good
9,001 reviews
United Airlines
7.4
Good
9,001 reviews
Check prices

Food

6.6

Crew

8.1

Entertainment

7.1

Overall

7.4

Comfort

7.3

Boarding

7.7

Reviews

1 / 20
10.0
Excellent

Anonymous,Sept 2025

FRA - SFO

Lufthansa was amazing, I wish United States based airlines operated like them.
British Airways
6.7
Okay
7,495 reviews
United Airlines
7.4
Good
9,001 reviews
Check prices

Food

6.6

Crew

8.1

Entertainment

7.1

Overall

7.4

Comfort

7.3

Boarding

7.7

Reviews

1 / 20
10.0
Excellent

Anonymous,Sept 2025

FRA - SFO

Lufthansa was amazing, I wish United States based airlines operated like them.

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?

    Aer Lingus, Scandinavian Airlines, and British Airways can get you from Ireland to San Diego in just under 15h 25m. Your travel time can differ by up to 14h 30m. 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, June is the cheapest month in which you can book a flight from Ireland to San Diego (average of £372). Flying from Ireland to San Diego in July is currently the most expensive (average of £617). 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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Top 2 airlines flying from Ireland to San Diego

Discover the top 2 airlines that operate flights from Ireland to San Diego. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 858,174 searches. Data last updated 5 November 2025.
AirlineCheapestAverageFlexibilityOn-time
British AirwaysCheapest£515Average£600FlexibilityNo cancel feeOn-time70%
Search British Airways flights
United AirlinesCheapest£543Average£695FlexibilityNo cancel feeOn-time69%
Search United Airlines flights

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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