Find flights
When to book
Airlines
FAQs

Cheap flights from Ireland to San Diego from £308

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 9/5. Fares are subject to change and may not be available on all flights or dates of travel.
DUB — SAN
8 Apr — 15 Apr1
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 April 2025.

Round-trip from

£528

One-way from

£308

Popular in

August

Cheapest in

November

Average price

£598
1/5-7/5
  • 1/5-7/5
  • 6 total stops
  • 69h 57m total
  • Ireland to San Diego
Search Deals
WestJet
  • WestJet
  • 9/5
  • 2 total stops
  • 57h 50m total
  • Ireland to San Diego
Search Deals
Highest demand for flights based on searches. 14% potential increase in price (£86 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (£13 potential savings vs. average return price).
Search Deals
Average for round-trip flights in April 2025
Search Deals

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 April 2025.

Thu 1/516:20DUB - SAN
3 stops40h 22mMultiple Airlines
Wed 7/506:15SAN - DUB
3 stops29h 35mMultiple Airlines
Deal found 1/4£528
Tue 2/905:55DUB - SAN
1 stop14h 05mDelta
Thu 11/912:35SAN - DUB
2 stops18h 25mDelta
Deal found 2/4£561
Tue 2/905:55DUB - SAN
1 stop14h 05mKLM
Thu 11/911:00SAN - DUB
1 stop13h 45mKLM
Deal found 2/4£562
Fri 5/1220:35DUB - SAN
1 stop27h 30mBritish Airways
Fri 9/118:10SAN - DUB
1 stop17h 35mBritish Airways
Deal found 1/4£566
Tue 22/411:30DUB - SAN
1 stop16h 51mJetBlue
Tue 29/410:36SAN - DUB
1 stop13h 44mJetBlue
Deal found 2/4£574
Fri 5/1209:00DUB - SAN
2 stops34h 22mUnited Airlines
Fri 9/107:00SAN - DUB
2 stops16h 00mUnited Airlines
Deal found 2/4£598
Sat 17/508:40DUB - SAN
2 stops19h 44mSWISS
Sat 24/516:10SAN - DUB
2 stops17h 40mSWISS
Deal found 2/4£639
Sat 17/510:15DUB - SAN
2 stops20h 56mScandinavian Airlines
Sat 24/511:15SAN - DUB
3 stops23h 10mScandinavian Airlines
Deal found 1/4£652
Tue 1/417:45DUB - SAN
1 stop29h 40mLufthansa
Sat 5/410:16SAN - DUB
2 stops16h 04mLufthansa
Deal found 1/4£795
Sat 9/809:20DUB - SAN
2 stops19h 30mAir Canada
Sat 23/806:30SAN - DUB
2 stops17h 45mAir Canada
Deal found 2/4£804
Mon 12/514:15DUB - SAN
2 stops16h 29mIcelandair
Mon 26/511:08SAN - DUB
2 stops18h 07mIcelandair
Deal found 2/4£892
Fri 11/409:10DUB - SAN
2 stops20h 17mAir France
Fri 25/411:51SAN - DUB
2 stops26h 49mAir France
Deal found 1/4£2,875

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 April 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

Thu 1/5

16:20-00:42

3 stops40h 22m

San Diego

Wed 7/5

06:15-19:50

3 stops29h 35m

£528

DublinSan Diego

DUB - SAN

DUBSAN

Dublin

Tue 2/9

05:55-12:00

1 stop14h 05m

San Diego

Thu 11/9

12:35-15:00

2 stops18h 25m

£561

DublinSan Diego

DUB - SAN

DUBSAN

Dublin

Tue 2/9

05:55-12:00

1 stop14h 05m

San Diego

Thu 11/9

11:00-08:45

1 stop13h 45m

£562

DublinSan Diego

DUB - SAN

DUBSAN

Dublin

Tue 22/4

11:30-20:21

1 stop16h 51m

San Diego

Tue 29/4

10:36-08:20

1 stop13h 44m

£574

DublinSan Diego

DUB - SAN

DUBSAN

Dublin

Fri 16/5

09:20-22:09

1 stop20h 49m

San Diego

Fri 23/5

16:55-07:45

1 stop30h 50m

£620

DublinSan Diego

DUB - SAN

DUBSAN

Dublin

Sat 17/5

08:40-20:24

2 stops19h 44m

San Diego

Sat 24/5

16:10-12:10

2 stops36h 00m

£639

DublinSan Diego

DUB - SAN

DUBSAN

Dublin

Sat 17/5

10:15-23:11

2 stops20h 56m

San Diego

Sat 24/5

11:15-18:25

3 stops23h 10m

£652

DublinSan Diego

DUB - SAN

DUBSAN

Dublin

Sat 9/8

09:20-20:50

2 stops19h 30m

San Diego

Sat 23/8

06:30-08:15

2 stops17h 45m

£804

DublinSan Diego

DUB - SAN

DUBSAN

Dublin

Mon 12/5

14:15-22:44

2 stops16h 29m

San Diego

Mon 26/5

11:08-13:15

2 stops18h 07m

£892

DublinSan Diego

DUB - SAN

DUBSAN

Dublin

Thu 1/5

05:55-15:25

2 stops17h 30m

San Diego

Thu 1/5

17:15-22:15

2 stops21h 00m

£3,076

Flights are sorted by cheapest return flights first.

Deals found on 1/4

Showing 1-10 of 13 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 April 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.

Rainfall in San Diego by month

Plan your trip to San Diego by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in San Diego ranges from 0.0 - 58.0 inches per month. February is typically the wettest month, when rainfall can reach 58.0 mm. July is typically the driest time to visit San Diego when rainfall is around 0.0 mm.

Temperature in San Diego by month

Plan your trip to San Diego by taking into account the average temperature totals by month.

If weather is an important factor for your trip to San Diego, use this chart to help with planning. For those seeking warmer temperatures, August is the ideal time of year to visit, when temperatures reach an average of 22.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 14.0 C).

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 April 2025.
To help decide which airline to fly from Ireland to San Diego, see what other customers have to say about Delta, KLM and SWISS. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very Good
7,897 reviews
Check prices

Boarding

8.2

Comfort

7.9

Food

7.3

Crew

8.5

Entertainment

7.9

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
Delta
8.0
Very Good
7,897 reviews
Delta
8.0
Very Good
7,897 reviews
Check prices

Boarding

8.2

Comfort

7.9

Food

7.3

Crew

8.5

Entertainment

7.9

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
KLM
7.8
Good
1,323 reviews
Delta
8.0
Very Good
7,897 reviews
Check prices

Boarding

8.2

Comfort

7.9

Food

7.3

Crew

8.5

Entertainment

7.9

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
SWISS
7.5
Good
1,574 reviews
Delta
8.0
Very Good
7,897 reviews
Check prices

Boarding

8.2

Comfort

7.9

Food

7.3

Crew

8.5

Entertainment

7.9

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
United Airlines
7.4
Good
8,616 reviews
Delta
8.0
Very Good
7,897 reviews
Check prices

Boarding

8.2

Comfort

7.9

Food

7.3

Crew

8.5

Entertainment

7.9

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
JetBlue
7.3
Good
2,922 reviews
Delta
8.0
Very Good
7,897 reviews
Check prices

Boarding

8.2

Comfort

7.9

Food

7.3

Crew

8.5

Entertainment

7.9

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

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.

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

    To fly one-way, consider booking your trip with WestJet, which is currently one of the cheapest options available, starting at £308. JetBlue flights start at £426 while deals on United Airlines start at £918 one-way.

  • 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 Ireland?

Book flights to Ireland if you plan to visit one of these locations
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
London City to Los Angeles flights
Gatwick to San Francisco flights
London City to San Francisco flights
Gatwick to Los Angeles flights
Heathrow to Ontario flights
London City to Las Vegas flights
Heathrow to Santa Ana flights
Luton to Los Angeles flights
Heathrow to Long Beach flights
Gatwick to Las Vegas flights
Heathrow to San Diego flights
Heathrow to Burbank flights
Heathrow to San Jose flights
Manchester to Las Vegas flights
Gatwick to Burbank flights
Heathrow to Oakland flights
Manchester to Los Angeles flights
Stansted to Los Angeles flights
Gatwick to Santa Ana flights
Gatwick to San Jose flights
Gatwick to Oakland flights
Stansted to San Francisco flights
London City to San Diego flights
Gatwick to San Diego flights
Luton to San Francisco flights
Manchester to San Francisco flights
London City to Santa Ana flights
London City to Burbank flights
Stansted to Las Vegas flights
Southend to Los Angeles flights
Birmingham to Los Angeles flights
Heathrow to Reno flights
Manchester to Ontario flights
Glasgow Intl to Los Angeles flights
Luton to Las Vegas flights
Manchester to Santa Ana flights
Glasgow Intl to San Francisco flights
Heathrow to San Luis Obispo flights
Newcastle upon Tyne to Los Angeles flights
Gatwick to Reno flights
London City to Oakland flights
Edinburgh to San Francisco flights
Edinburgh to Las Vegas flights
Manchester to San Jose flights
Heathrow to Sacramento flights
Edinburgh to Los Angeles flights
Manchester 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 3 April 2025.
AirlineCheapestAverageFlexibilityOn-time
British AirwaysCheapest£522Average£642FlexibilityNo cancel feeOn-time70%
Search British Airways flights
United AirlinesCheapest£555Average£788FlexibilityNo 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.