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Cheap flights from Ireland to San Diego from £406

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 1/5. Fares are subject to change and may not be available on all flights or dates of travel.
DUB — SAN
21 Jan — 28 Jan1
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 22 December 2025.

Mon 29/1211:30DUB - SAN
1 stop15h 23mMultiple Airlines
Fri 16/118:00SAN - DUB
1 stop15h 00mMultiple Airlines
Deal found 20/12£617
Mon 29/1206:00DUB - SAN
2 stops20h 05mDelta
Fri 16/122:30SAN - DUB
2 stops26h 15mDelta
Deal found 20/12£657
Tue 23/1208:50DUB - SAN
2 stops22h 38mDelta
Fri 9/110:37SAN - DUB
2 stops21h 08mDelta
Deal found 19/12£728
Fri 19/1209:45DUB - SAN
1 stop19h 33mDelta
Thu 1/106:15SAN - DUB
2 stops17h 30mDelta
Deal found 19/12£1,501
Sun 21/1220:40DUB - SAN
2 stops29h 30mMultiple Airlines
Sat 3/109:23SAN - DUB
1 stop15h 17mMultiple Airlines
Deal found 21/12£1,816
Fri 19/1210:40DUB - SAN
1 stop20h 11mUnited Airlines
Sat 3/107:00SAN - DUB
1 stop17h 10mUnited Airlines
Deal found 19/12£1,890
Sun 21/1210:40DUB - SAN
2 stops18h 07mUnited Airlines
Sat 3/106:30SAN - DUB
2 stops17h 40mUnited Airlines
Deal found 20/12£1,893

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 22 December 2025.

Round-trip from

£502

One-way from

£406

Popular in

August

Cheapest in

January

Average price

£659
Scandinavian Airlines
  • Scandinavian Airlines
  • 17/4-23/4
  • 4 total stops
  • 85h 58m total
  • Ireland to San Diego
Search Deals
JetBlue
  • JetBlue
  • 1/5
  • 1 total stop
  • 17h 28m total
  • Ireland to San Diego
Search Deals
Highest demand for flights based on searches. 11% potential increase in price (£61 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 December 2025
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 22 December 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 17/4

11:10-23:43

2 stops44h 33m

San Diego

Thu 23/4

08:00-09:25

2 stops41h 25m

£502

DublinSan Diego

DUB - SAN

DUBSAN

Dublin

Thu 26/2

12:30-00:05

2 stops43h 35m

San Diego

Mon 2/3

08:00-11:45

2 stops43h 45m

£511

DublinSan Diego

DUB - SAN

DUBSAN

Dublin

Thu 26/2

08:50-16:10

1 stop15h 20m

San Diego

Mon 2/3

14:46-17:05

2 stops18h 19m

£567

DublinSan Diego

DUB - SAN

DUBSAN

Dublin

Mon 9/3

08:50-17:10

1 stop15h 20m

San Diego

Sun 15/3

19:00-16:50

1 stop14h 50m

£568

DublinSan Diego

DUB - SAN

DUBSAN

Dublin

Thu 22/1

08:50-16:10

1 stop15h 20m

San Diego

Wed 4/2

13:19-17:00

2 stops19h 41m

£568

DublinSan Diego

DUB - SAN

DUBSAN

Dublin

Tue 3/3

08:50-16:10

1 stop15h 20m

San Diego

Mon 9/3

19:00-17:05

1 stop15h 05m

£568

DublinSan Diego

DUB - SAN

DUBSAN

Dublin

Fri 1/5

11:45-18:58

1 stop15h 13m

£406

DublinSan Diego

DUB - SAN

DUBSAN

Dublin

Sun 22/3

11:30-21:39

2 stops17h 09m

£511

DublinSan Diego

DUB - SAN

DUBSAN

Dublin

Mon 6/4

20:55-17:50

1 stop28h 55m

£523

DublinSan Diego

DUB - SAN

DUBSAN

Dublin

Tue 7/4

20:20-17:50

1 stop29h 30m

£523

Flights are sorted by cheapest return flights first.

Deals found on 19/12

Showing 1-10 of 12 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 £363). Flying from Ireland to San Diego in July is currently the most expensive (average of £603). 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 22 December 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 22 December 2025.
Get a feel of what it's like to fly with United Airlines 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
9,102 reviews
Check prices

Comfort

7.3

Crew

8.1

Entertainment

7.1

Food

6.6

Boarding

7.7

Overall

7.4

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
9,102 reviews
United Airlines
7.4
Good
9,102 reviews
Check prices

Comfort

7.3

Crew

8.1

Entertainment

7.1

Food

6.6

Boarding

7.7

Overall

7.4

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?

    Scandinavian Airlines and British Airways can get you from Ireland to San Diego in just under 15h 20m. Your travel time can differ by up to 29h 13m. 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 £363). Flying from Ireland to San Diego in July is currently the most expensive (average of £603). 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 airline flying from Ireland to San Diego

Discover the top airline 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 22 December 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest£531Average£762FlexibilityNo 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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