Find flights
When to book
Airlines
FAQs

Cheap flights from Ireland to San Diego from £500

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 16/1. Fares are subject to change and may not be available on all flights or dates of travel.
DUB — SAN
21 Dec — 28 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 21 November 2025.

Round-trip from

£500

Popular in

August

Cheapest in

January

Average price

£673
Scandinavian Airlines
  • Scandinavian Airlines
  • 16/1-20/1
  • 4 total stops
  • 81h 43m 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 21 November 2025.

Thu 11/1211:30DUB - SAN
1 stop15h 32mMultiple Airlines
Sat 27/1209:40SAN - DUB
1 stop13h 30mMultiple Airlines
Deal found 20/11£627
Thu 27/1112:05DUB - SAN
1 stop16h 28mUnited Airlines
Sun 30/1107:00SAN - DUB
1 stop17h 10mUnited Airlines
Deal found 20/11£636
Thu 27/1105:55DUB - SAN
2 stops20h 25mDelta
Sun 30/1109:59SAN - DUB
2 stops18h 41mDelta
Deal found 19/11£701
Fri 19/1210:40DUB - SAN
2 stops30h 59mUnited Airlines
Fri 26/1222:30SAN - DUB
1 stop25h 40mUnited Airlines
Deal found 20/11£734
Mon 29/1212:05DUB - SAN
2 stops29h 39mUnited Airlines
Fri 16/109:00SAN - DUB
2 stops15h 10mUnited Airlines
Deal found 20/11£763
Mon 29/1219:45DUB - SAN
1 stop28h 25mBritish Airways
Fri 16/113:58SAN - DUB
2 stops16h 22mBritish Airways
Deal found 19/11£793
Fri 19/1206:40DUB - SAN
2 stops21h 35mBritish Airways
Fri 2/108:13SAN - DUB
2 stops19h 52mBritish Airways
Deal found 19/11£1,185
Wed 19/1120:40DUB - SAN
2 stops29h 24mBritish Airways
Sat 29/1109:42SAN - DUB
2 stops16h 33mBritish Airways
Deal found 19/11£1,210
Thu 18/1205:55DUB - SAN
2 stops17h 28mKLM
Thu 1/106:15SAN - DUB
1 stop17h 30mKLM
Deal found 20/11£1,402

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 21 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

Fri 16/1

12:30-21:05

2 stops40h 35m

San Diego

Tue 20/1

10:37-11:45

2 stops41h 08m

£500

DublinSan Diego

DUB - SAN

DUBSAN

Dublin

Fri 16/1

08:50-16:10

1 stop15h 20m

San Diego

Tue 20/1

18:00-09:40

1 stop31h 40m

£608

DublinSan Diego

DUB - SAN

DUBSAN

Dublin

Fri 16/1

05:10-19:54

2 stops22h 44m

San Diego

Tue 20/1

07:00-08:10

1 stop17h 10m

£612

DublinSan Diego

DUB - SAN

DUBSAN

Dublin

Thu 11/12

11:30-19:02

1 stop15h 32m

San Diego

Sat 27/12

09:40-07:10

1 stop13h 30m

£627

DublinSan Diego

DUB - SAN

DUBSAN

Dublin

Thu 15/1

10:40-19:54

2 stops17h 14m

San Diego

Wed 28/1

06:15-07:30

2 stops17h 15m

£627

DublinSan Diego

DUB - SAN

DUBSAN

Dublin

Thu 8/1

11:30-20:41

2 stops17h 11m

San Diego

Wed 21/1

09:21-08:40

2 stops15h 19m

£629

DublinSan Diego

DUB - SAN

DUBSAN

Dublin

Thu 8/1

10:40-20:42

2 stops18h 02m

San Diego

Wed 21/1

06:15-07:30

2 stops17h 15m

£651

DublinSan Diego

DUB - SAN

DUBSAN

Dublin

Fri 19/12

10:40-09:39

2 stops30h 59m

San Diego

Fri 26/12

22:30-08:10

1 stop25h 40m

£734

DublinSan Diego

DUB - SAN

DUBSAN

Dublin

Sun 21/12

15:20-23:59

3 stops40h 39m

£553

DublinSan Diego

DUB - SAN

DUBSAN

Dublin

Sat 20/12

04:15-10:31

2 stops38h 16m

£3,018

Flights are sorted by cheapest return flights first.

Deals found on 20/11

Showing 1-10 of 11 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 21 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 21 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
9,029 reviews
Check prices

Comfort

7.3

Crew

8.1

Entertainment

7.1

Boarding

7.7

Food

6.6

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
9,029 reviews
United Airlines
7.4
Good
9,029 reviews
Check prices

Comfort

7.3

Crew

8.1

Entertainment

7.1

Boarding

7.7

Food

6.6

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.
British Airways
6.7
Okay
7,533 reviews
United Airlines
7.4
Good
9,029 reviews
Check prices

Comfort

7.3

Crew

8.1

Entertainment

7.1

Boarding

7.7

Food

6.6

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, British Airways, and Lufthansa can get you from Ireland to San Diego in just under 15h 20m. Your travel time can differ by up to 25h 15m. 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

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.
Heathrow to Los Angeles flights
Heathrow to San Francisco flights
Heathrow to Las Vegas flights
Gatwick to Los Angeles flights
London City to Los Angeles flights
Gatwick to Las Vegas flights
Gatwick to San Francisco flights
Stansted to Los Angeles flights
Heathrow to Ontario flights
London City to Las Vegas flights
London City to San Francisco flights
Heathrow to Santa Ana flights
Luton to Los Angeles flights
Heathrow to San Jose flights
Heathrow to Burbank flights
Heathrow to Oakland flights
Heathrow to San Diego flights
Stansted to San Francisco flights
Stansted to Las Vegas flights
Gatwick to Oakland flights
Luton to San Francisco flights
Gatwick to San Jose flights
Manchester to Las Vegas flights
Gatwick to Santa Ana flights
Gatwick to Burbank flights
Luton to Las Vegas flights
Manchester to Los Angeles flights
Heathrow to Long Beach flights
Gatwick to San Diego flights
London City to San Diego flights
Manchester to Santa Ana flights
Manchester to San Francisco flights
Manchester to Ontario flights
Gatwick to Sacramento flights
Edinburgh to San Francisco flights
Heathrow to Santa Rosa flights
Birmingham to San Francisco flights
Glasgow Intl to Los Angeles flights
Newcastle upon Tyne to Los Angeles flights
Amsterdam to Los Angeles flights
Manchester to Burbank flights
Heathrow to Sacramento flights
London City to Burbank flights
Edinburgh to Los Angeles flights
Birmingham to Las Vegas flights
Newcastle upon Tyne to Ontario flights
London City to Sacramento flights
London City to Santa Ana flights
Birmingham to Los Angeles flights
Glasgow Intl to San Diego flights

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 21 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.

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.