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 £386. JetBlue flights start at £405 while deals on United Airlines start at £953 one-way.

How far in advance should I book a flight from Ireland to San Diego?

Users have found that booking a flight from Ireland to San Diego at least 22 days early can save you up to 74% on average compared to booking a flight this week. If booking 22 days before your flight isn’t an option for you, users have found flights from Ireland to San Diego for as little as £590 when booking for a departure date within the next two weeks. You can also check prices now. Some users have found airline tickets as low as £699 for flights departing within the next 3 days.

What is the cheapest month to fly from Ireland to San Diego?

November can be a great time to fly to San Diego from Ireland with a flight ticket averaging about £618. Cheapflights users have found deals in the month of November for as cheap as £484. The most expensive prices can be found in the month of August.

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.

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.

£716+ Flights from Ireland to San Diego - Compare & Save Big

Cheap flight deals from Ireland to San Diego

Round-trip from	£570
One-way from	£386
Popular in	August
Cheapest in	November
Average price	£598

British Airways
20/5-27/5
3 total stops
35h 06m total
Ireland to San Diego

Search Deals

WestJet
19/7
2 total stops
32h 45m total
Ireland to San Diego

Search Deals

Highest demand for flights based on searches. 15% potential increase in price (£83 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 May 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 1 May 2025.

Fri 5/1210:45DUB - SAN

2 stops19h 06mBritish Airways

Fri 9/116:58SAN - DUB

2 stops16h 02mBritish Airways

Deal found 30/4£567

Thu 8/505:55DUB - SAN

1 stop14h 05mDelta

Sat 24/514:10SAN - DUB

2 stops16h 50mDelta

Deal found 30/4£570

Fri 5/1211:30DUB - SAN

1 stop18h 12mMultiple Airlines

Fri 9/109:52SAN - DUB

1 stop14h 48mMultiple Airlines

Deal found 30/4£579

Thu 12/611:30DUB - SAN

1 stop15h 32mJetBlue

Mon 30/611:00SAN - DUB

1 stop14h 00mJetBlue

Deal found 30/4£605

Thu 12/609:20DUB - SAN

1 stop18h 25mUnited Airlines

Mon 30/622:00SAN - DUB

2 stops27h 45mUnited Airlines

Deal found 30/4£630

Thu 8/508:40DUB - SAN

2 stops21h 34mSWISS

Sat 24/516:10SAN - DUB

2 stops17h 40mSWISS

Deal found 30/4£650

Wed 23/711:45DUB - SAN

1 stop14h 11mFinnair

Mon 28/713:12SAN - DUB

1 stop14h 28mFinnair

Deal found 30/4£690

Thu 31/709:50DUB - SAN

2 stops16h 45mAir Canada

Sat 23/822:30SAN - DUB

2 stops25h 45mAir Canada

Deal found 30/4£769

Thu 17/720:15DUB - SAN

2 stops29h 59mScandinavian Airlines

Mon 4/809:59SAN - DUB

3 stops25h 26mScandinavian Airlines

Deal found 30/4£1,068

Fri 19/1208:55DUB - SAN

1 stop15h 10mAer Lingus

Thu 1/118:10SAN - DUB

1 stop13h 30mAer Lingus

Deal found 30/4£1,673

Tue 28/1009:45DUB - SAN

1 stop17h 41mKLM

Wed 12/1107:00SAN - DUB

1 stop17h 45mKLM

Deal found 30/4£1,778

Best flights from Ireland to San Diego
Discover carefully curated flight deals from Ireland to San Diego that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 1 May 2025.

Tue 20/508:35DUB - SAN

2 stops18h 41mBritish Airways

Tue 27/516:40SAN - DUB

1 stop16h 25mBritish Airways

Deal found 29/4£570

Tue 27/505:55DUB - SAN

1 stop14h 05mDelta

Tue 3/606:20SAN - DUB

1 stop17h 35mDelta

Deal found 29/4£572

Wed 14/513:20DUB - SAN

1 stop30h 40mKLM

Wed 21/506:20SAN - DUB

1 stop17h 35mKLM

Deal found 30/4£574

Thu 12/611:30DUB - SAN

1 stop15h 32mJetBlue

Mon 30/611:00SAN - DUB

1 stop14h 00mJetBlue

Deal found 30/4£605

Thu 12/609:20DUB - SAN

1 stop18h 25mUnited Airlines

Mon 30/622:00SAN - DUB

2 stops27h 45mUnited Airlines

Deal found 30/4£630

Thu 31/713:45DUB - SAN

1 stop17h 42mMultiple Airlines

Sat 23/815:30SAN - DUB

1 stop34h 15mMultiple Airlines

Deal found 30/4£680

Wed 23/711:45DUB - SAN

1 stop14h 11mFinnair

Mon 28/713:12SAN - DUB

1 stop14h 28mFinnair

Deal found 30/4£690

Thu 31/709:50DUB - SAN

2 stops16h 45mAir Canada

Sat 23/822:30SAN - DUB

2 stops25h 45mAir Canada

Deal found 30/4£769

Sun 15/608:40DUB - SAN

2 stops22h 05mSWISS

Sun 22/606:30SAN - DUB

2 stops21h 40mSWISS

Deal found 30/4£861

Thu 17/720:15DUB - SAN

2 stops29h 59mScandinavian Airlines

Mon 4/809:59SAN - DUB

3 stops25h 26mScandinavian Airlines

Deal found 30/4£1,068

Last-minute flights from Ireland to San Diego
Discover last-minute flight deals from Ireland to San Diego. Data last updated 1 May 2025 and is based on user searches.

Wed 7/509:20DUB - SAN

1 stop14h 49mUnited Airlines

Wed 14/511:10SAN - DUB

2 stops16h 00mUnited Airlines

Deal found 30/4£635

Wed 7/510:40DUB - SAN

2 stops19h 34mLufthansa

Wed 14/510:30SAN - DUB

2 stops15h 50mLufthansa

Deal found 30/4£704

Thu 8/505:55DUB - SAN

1 stop14h 05mDelta

Sat 24/514:10SAN - DUB

2 stops16h 50mDelta

Deal found 30/4£570

Thu 8/508:40DUB - SAN

2 stops21h 34mSWISS

Sat 24/516:10SAN - DUB

2 stops17h 40mSWISS

Deal found 30/4£650

One-way flights from Ireland to San Diego
Search for one-way flight options from Ireland to San Diego. Find affordable one-way fares based on user searches. Data last updated 1 May 2025.

Sat 19/709:45DUB - SAN

2 stops32h 45mWestJet

Deal found 30/4£386

Fri 9/511:30DUB - SAN

1 stop15h 42mJetBlue

Deal found 30/4£405

Fri 29/808:50DUB - SAN

3 stops21h 24mUnited Airlines

Deal found 30/4£953

Cheapflights Fare Finder

Use the filters below to find and compare flights from Ireland to San Diego that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

DublinSan Diego

DUB - SAN

DUBSAN

Dublin

Tue 20/5

08:35-19:16

2 stops18h 41m

San Diego

Tue 27/5

16:40-17:05

1 stop16h 25m

£570

DublinSan Diego

DUB - SAN

DUBSAN

Dublin

Tue 27/5

05:55-12:00

1 stop14h 05m

San Diego

Tue 3/6

06:20-07:55

1 stop17h 35m

£572

DublinSan Diego

DUB - SAN

DUBSAN

Dublin

Wed 14/5

13:20-12:00

1 stop30h 40m

San Diego

Wed 21/5

06:20-07:55

1 stop17h 35m

£574

DublinSan Diego

DUB - SAN

DUBSAN

Dublin

Thu 12/6

11:30-19:02

1 stop15h 32m

San Diego

Mon 30/6

11:00-09:00

1 stop14h 00m

£605

DublinSan Diego

DUB - SAN

DUBSAN

Dublin

Thu 12/6

09:20-19:45

1 stop18h 25m

San Diego

Mon 30/6

22:00-09:45

2 stops27h 45m

£630

DublinSan Diego

DUB - SAN

DUBSAN

Dublin

Thu 31/7

13:45-23:27

1 stop17h 42m

San Diego

Sat 23/8

15:30-09:45

1 stop34h 15m

£680

DublinSan Diego

DUB - SAN

DUBSAN

Dublin

Wed 23/7

11:45-17:56

1 stop14h 11m

San Diego

Mon 28/7

13:12-11:40

1 stop14h 28m

£690

DublinSan Diego

DUB - SAN

DUBSAN

Dublin

Thu 31/7

09:50-18:35

2 stops16h 45m

San Diego

Sat 23/8

22:30-08:15

2 stops25h 45m

£769

DublinSan Diego

DUB - SAN

DUBSAN

Dublin

Sun 15/6

08:40-22:45

2 stops22h 05m

San Diego

Sun 22/6

06:30-12:10

2 stops21h 40m

£861

DublinSan Diego

DUB - SAN

DUBSAN

Dublin

Thu 17/7

20:15-18:14

2 stops29h 59m

San Diego

Mon 4/8

09:59-19:25

3 stops25h 26m

£1,068

Flights are sorted by cheapest return flights first.

Deals found on 30/4

Showing 1-10 of 13 results

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?

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

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

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

To help decide which airline to fly from Ireland to San Diego, see what other customers have to say about Delta, KLM and Finnair. 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

7,934 reviews

Check prices

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

7,934 reviews

Delta

8.0

Very Good

7,934 reviews

Check prices

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

1,334 reviews

Delta

8.0

Very Good

7,934 reviews

Check prices

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

Finnair

7.6

Good

1,275 reviews

Delta

8.0

Very Good

7,934 reviews

Check prices

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

1,588 reviews

Delta

8.0

Very Good

7,934 reviews

Check prices

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

8,696 reviews

Delta

8.0

Very Good

7,934 reviews

Check prices

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

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 £386. JetBlue flights start at £405 while deals on United Airlines start at £953 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

El Cajon

Browse thousands of different options on Cheapflights for your next trip

Top 2 airlines flying from Ireland to San Diego

Airline	Cheapest	Average	Flexibility	On-time
British Airways	Cheapest£506	Average£608	FlexibilityNo cancel fee	On-time70%	Search British Airways flights
United Airlines	Cheapest£538	Average£764	FlexibilityNo cancel fee	On-time69%	Search United Airlines flights

Fly with Cheapflights

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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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.

Cheap flights from Ireland to San Diego from £386

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 19/7. Fares are subject to change and may not be available on all flights or dates of travel.

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 1 May 2025.

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Find flight deals from Ireland to San Diego

Cheapest flights from Ireland to San DiegoExplore 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 1 May 2025.

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 1 May 2025.

Cheapflights Fare Finder

Use the filters below to find and compare flights from Ireland to San Diego that are best for you.

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.

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?

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 1 May 2025.

Rainfall in San Diego by month

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

Temperature in San Diego by month

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

Reviews of airlines servicing San Diego

To help decide which airline to fly from Ireland to San Diego, see what other customers have to say about Delta, KLM and Finnair. 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.

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?

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

Can I find deals for flights from Ireland to San Diego that include hotel bookings?

How can I find direct flights from Ireland to San Diego?

Can I find deals for business class flights from Ireland to San Diego?

What is the cheapest month to book a flight from Ireland to San Diego?

Travelling to a place near Ireland?

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

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?

Why should you use Cheapflights to find cheap flight tickets from Ireland to San Diego?

Can Cheapflights find flights from Ireland to San Diego with no change fees?

Can Cheapflights notify me if prices for flights from Ireland to San Diego become cheaper?

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Book with Flexibility

Travel Smart

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 1 May 2025.