Cheap flights from Ireland to San Diego from £391

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 22/11. Fares are subject to change and may not be available on all flights or dates of travel.
DUB — SAN
8 Sep — 15 Sep1
1 adult

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 3 September 2025.

Round-trip from

£455

One-way from

£391

Popular in

August

Cheapest in

November

Average price

£627
Scandinavian Airlines
  • Scandinavian Airlines
  • 19/11-24/11
  • 4 total stops
  • 83h 08m total
  • Ireland to San Diego
WestJet
  • WestJet
  • 22/11
  • 2 total stops
  • 35h 00m total
  • Ireland to San Diego
Highest demand for flights based on searches. 13% potential increase in price (£69 potential increase over avg. return price).
Cheapest flight prices on average. 2% potential price decrease (£10 potential savings vs. average return price).
Average for round-trip flights in September 2025

Find 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 3 September 2025.

Fri 14/1119:05DUB - SAN
2 stops35h 50mScandinavian Airlines
Mon 24/1111:02SAN - DUB
2 stops40h 43mScandinavian Airlines
Deal found 3/9£455
Fri 5/1219:05DUB - SAN
2 stops35h 49mScandinavian Airlines
Fri 9/108:00SAN - DUB
2 stops41h 25mScandinavian Airlines
Deal found 2/9£463
Sat 15/1110:10DUB - SAN
2 stops45h 33mScandinavian Airlines
Wed 26/1110:00SAN - DUB
2 stops41h 45mScandinavian Airlines
Deal found 3/9£481
Sun 16/1110:10DUB - SAN
2 stops45h 33mScandinavian Airlines
Wed 26/1110:00SAN - DUB
2 stops41h 45mScandinavian Airlines
Deal found 3/9£507
Sat 11/1010:15DUB - SAN
2 stops44h 16mScandinavian Airlines
Thu 30/1012:00SAN - DUB
2 stops38h 25mScandinavian Airlines
Deal found 2/9£513
Fri 14/1119:05DUB - SAN
2 stops35h 50mScandinavian Airlines
Tue 25/1116:04SAN - DUB
2 stops35h 41mScandinavian Airlines
Deal found 3/9£546
Fri 17/1011:35DUB - SAN
1 stop14h 55mLufthansa
Fri 24/1006:48SAN - DUB
1 stop18h 57mLufthansa
Deal found 2/9£570
Sun 16/1110:10DUB - SAN
2 stops45h 33mScandinavian Airlines
Tue 25/1110:00SAN - DUB
2 stops41h 45mScandinavian Airlines
Deal found 3/9£572
Thu 16/1008:35DUB - SAN
1 stop14h 15mBritish Airways
Thu 30/1019:00SAN - DUB
1 stop17h 50mBritish Airways
Deal found 2/9£575
Sun 21/1220:40DUB - SAN
1 stop27h 30mBritish Airways
Mon 29/1218:00SAN - DUB
1 stop17h 40mBritish Airways
Deal found 2/9£577
Sat 18/1005:55DUB - SAN
2 stops17h 56mMultiple Airlines
Thu 23/1008:00SAN - DUB
2 stops15h 45mMultiple Airlines
Deal found 2/9£578

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 3 September 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 19/11

12:30-22:55

2 stops42h 25m

San Diego

Mon 24/11

11:02-11:45

2 stops40h 43m

£455

DublinSan Diego

DUB - SAN

DUBSAN

Dublin

Sat 15/11

10:10-23:43

2 stops45h 33m

San Diego

Mon 24/11

11:02-11:45

2 stops40h 43m

£455

DublinSan Diego

DUB - SAN

DUBSAN

Dublin

Tue 18/11

12:30-22:55

2 stops42h 25m

San Diego

Mon 24/11

11:02-11:45

2 stops40h 43m

£455

DublinSan Diego

DUB - SAN

DUBSAN

Dublin

Mon 17/11

19:05-22:55

2 stops35h 50m

San Diego

Mon 24/11

11:02-11:45

2 stops40h 43m

£455

DublinSan Diego

DUB - SAN

DUBSAN

Dublin

Fri 21/11

19:05-22:55

2 stops35h 50m

San Diego

Mon 24/11

11:02-11:45

2 stops40h 43m

£455

DublinSan Diego

DUB - SAN

DUBSAN

Dublin

Thu 20/11

12:30-22:55

2 stops42h 25m

San Diego

Mon 24/11

11:02-11:45

2 stops40h 43m

£455

DublinSan Diego

DUB - SAN

DUBSAN

Dublin

Fri 14/11

19:05-22:55

2 stops35h 50m

San Diego

Mon 24/11

11:02-11:45

2 stops40h 43m

£455

DublinSan Diego

DUB - SAN

DUBSAN

Dublin

Fri 5/12

19:05-22:54

2 stops35h 49m

San Diego

Fri 9/1

08:00-09:25

2 stops41h 25m

£463

DublinSan Diego

DUB - SAN

DUBSAN

Dublin

Fri 21/11

19:05-22:55

2 stops35h 50m

San Diego

Wed 26/11

10:00-11:45

2 stops41h 45m

£481

DublinSan Diego

DUB - SAN

DUBSAN

Dublin

Thu 20/11

12:30-22:55

2 stops42h 25m

San Diego

Thu 27/11

11:02-09:25

2 stops38h 23m

£481

Flights are sorted by cheapest return flights first.

Deals found on 2/9

Showing 1-10 of 14 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, January is the cheapest month in which you can book a flight from Ireland to San Diego (average of £585). Flying from Ireland to San Diego in July is currently the most expensive (average of £920). 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 3 September 2025.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Ireland to San Diego as you normally would.

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 3 September 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.

Food

6.6

Boarding

7.7

Comfort

7.3

Overall

7.4

Crew

8.1

Entertainment

7.1

Reviews

1 / 20
4.0
Okay

Thomas,Apr 2025

TPE - SFO

The boarding experience was okay. The dietary food choices were limited, the midway snacks were hard and dry. The seat was uncomfortable - stiff seat cushion, seat back kept springing back to the upright position, narrow seat width. Love the app and the ability to track my luggage. Flight crew was efficient.

Food

6.6

Boarding

7.7

Comfort

7.3

Overall

7.4

Crew

8.1

Entertainment

7.1

Reviews

1 / 20
4.0
Okay

Thomas,Apr 2025

TPE - SFO

The boarding experience was okay. The dietary food choices were limited, the midway snacks were hard and dry. The seat was uncomfortable - stiff seat cushion, seat back kept springing back to the upright position, narrow seat width. Love the app and the ability to track my luggage. Flight crew was efficient.

Food

6.6

Boarding

7.7

Comfort

7.3

Overall

7.4

Crew

8.1

Entertainment

7.1

Reviews

1 / 20
4.0
Okay

Thomas,Apr 2025

TPE - SFO

The boarding experience was okay. The dietary food choices were limited, the midway snacks were hard and dry. The seat was uncomfortable - stiff seat cushion, seat back kept springing back to the upright position, narrow seat width. Love the app and the ability to track my luggage. Flight crew was efficient.

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 can get you from Ireland to San Diego in just under 42h 25m. Your travel time can differ by up to . Ireland and San Diego are separated by a distance of 5194 mi.

  • 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, January is the cheapest month in which you can book a flight from Ireland to San Diego (average of £585). Flying from Ireland to San Diego in July is currently the most expensive (average of £920). 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

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.

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 3 September 2025.
AirlineCheapestAverageFlexibilityOn-time
British AirwaysCheapest£502Average£606FlexibilityNo cancel feeOn-time70%
Search British Airways flights
United AirlinesCheapest£530Average£676FlexibilityNo 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.

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.