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 £410. JetBlue flights start at £450 while deals on Delta start at £1,821 one-way.

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.

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).

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 80% 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 £574 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 £705 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 £599. Cheapflights users have found deals in the month of November for as cheap as £471. 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.

£1,351+ Flights from Ireland to San Diego

Cheap flight deals from Ireland to San Diego

Round-trip from	£543
One-way from	£410
Popular in	August
Cheapest in	November
Average price	£594

KLM
5/12-9/1
3 total stops
52h 00m total
Ireland to San Diego

Search Deals

WestJet
7/8
3 total stops
34h 09m total
Ireland to San Diego

Search Deals

Highest demand for flights based on searches. 13% potential increase in price (£70 potential increase over avg. return price).

Search Deals

Cheapest flight prices on average. 2% potential price decrease (£11 potential savings vs. average return price).

Search Deals

Average for round-trip flights in June 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 27 June 2025.

Fri 5/1208:50DUB - SAN

1 stop35h 15mKLM

Fri 9/108:00SAN - DUB

2 stops16h 45mKLM

Deal found 25/6£543

Fri 5/1209:00DUB - SAN

1 stop33h 53mUnited Airlines

Fri 9/107:00SAN - DUB

1 stop17h 10mUnited Airlines

Deal found 26/6£544

Fri 5/1213:25DUB - SAN

1 stop30h 40mDelta

Fri 9/112:35SAN - DUB

2 stops19h 05mDelta

Deal found 26/6£545

Mon 11/809:20DUB - SAN

2 stops21h 46mMultiple Airlines

Mon 18/806:15SAN - DUB

2 stops20h 55mMultiple Airlines

Deal found 27/6£630

Mon 11/809:20DUB - SAN

1 stop18h 18mAir Canada

Mon 18/808:10SAN - DUB

1 stop15h 35mAir Canada

Deal found 27/6£632

Sat 9/811:35DUB - SAN

1 stop19h 09mLufthansa

Sat 16/817:15SAN - DUB

1 stop15h 40mLufthansa

Deal found 25/6£649

Thu 17/710:40DUB - SAN

1 stop17h 09mJetBlue

Mon 4/811:14SAN - DUB

1 stop13h 46mJetBlue

Deal found 25/6£664

Mon 11/821:10DUB - SAN

3 stops29h 44mScandinavian Airlines

Mon 18/811:10SAN - DUB

3 stops24h 15mScandinavian Airlines

Deal found 26/6£724

Mon 7/718:50DUB - SAN

2 stops32h 59mTAP AIR PORTUGAL

Sun 20/711:14SAN - DUB

2 stops22h 51mTAP AIR PORTUGAL

Deal found 25/6£1,614

Tue 28/1013:00DUB - SAN

1 stop15h 23mAmerican Airlines

Wed 12/1106:24SAN - DUB

1 stop18h 36mAmerican Airlines

Deal found 26/6£1,972

Wed 19/1106:40DUB - SAN

1 stop17h 25mBritish Airways

Wed 3/1212:48SAN - DUB

2 stops20h 12mBritish Airways

Deal found 26/6£1,997

Tue 28/1011:30DUB - SAN

2 stops18h 13mIcelandair

Wed 12/1106:15SAN - DUB

2 stops20h 00mIcelandair

Deal found 25/6£2,102

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 27 June 2025.

Fri 5/1208:50DUB - SAN

1 stop35h 15mKLM

Fri 9/108:00SAN - DUB

2 stops16h 45mKLM

Deal found 25/6£543

Fri 5/1209:00DUB - SAN

1 stop33h 53mUnited Airlines

Fri 9/107:00SAN - DUB

1 stop17h 10mUnited Airlines

Deal found 26/6£544

Fri 5/1213:25DUB - SAN

1 stop30h 40mDelta

Fri 9/112:35SAN - DUB

2 stops19h 05mDelta

Deal found 26/6£545

Mon 11/809:20DUB - SAN

2 stops21h 46mMultiple Airlines

Mon 18/806:15SAN - DUB

2 stops20h 55mMultiple Airlines

Deal found 27/6£630

Mon 11/809:20DUB - SAN

1 stop18h 18mAir Canada

Mon 18/808:10SAN - DUB

1 stop15h 35mAir Canada

Deal found 27/6£632

Sat 9/811:35DUB - SAN

1 stop19h 09mLufthansa

Sat 16/817:15SAN - DUB

1 stop15h 40mLufthansa

Deal found 25/6£649

Thu 17/710:40DUB - SAN

1 stop17h 09mJetBlue

Mon 4/811:14SAN - DUB

1 stop13h 46mJetBlue

Deal found 25/6£664

Mon 11/821:10DUB - SAN

3 stops29h 44mScandinavian Airlines

Mon 18/811:10SAN - DUB

3 stops24h 15mScandinavian Airlines

Deal found 26/6£724

Mon 7/718:50DUB - SAN

2 stops32h 59mTAP AIR PORTUGAL

Sun 20/711:14SAN - DUB

2 stops22h 51mTAP AIR PORTUGAL

Deal found 25/6£1,614

Tue 28/1013:00DUB - SAN

1 stop15h 23mAmerican Airlines

Wed 12/1106:24SAN - DUB

1 stop18h 36mAmerican Airlines

Deal found 26/6£1,972

Wed 19/1106:40DUB - SAN

1 stop17h 25mBritish Airways

Wed 3/1212:48SAN - DUB

2 stops20h 12mBritish Airways

Deal found 26/6£1,997

Tue 28/1011:30DUB - SAN

2 stops18h 13mIcelandair

Wed 12/1106:15SAN - DUB

2 stops20h 00mIcelandair

Deal found 25/6£2,102

Last-minute flights from Ireland to San Diego
Discover last-minute flight deals from Ireland to San Diego. Data last updated 27 June 2025 and is based on user searches.

Wed 2/705:55DUB - SAN

2 stops21h 56mLufthansa

Tue 8/716:00SAN - DUB

2 stops35h 10mLufthansa

Deal found 26/6£774

Thu 3/709:20DUB - SAN

2 stops19h 52mUnited Airlines

Thu 17/708:45SAN - DUB

2 stops17h 35mUnited Airlines

Deal found 25/6£688

Mon 7/711:30DUB - SAN

1 stop30h 59mJetBlue

Sun 20/720:30SAN - DUB

1 stop27h 50mJetBlue

Deal found 26/6£684

Mon 7/721:10DUB - SAN

3 stops29h 44mScandinavian Airlines

Sun 20/707:30SAN - DUB

2 stops27h 55mScandinavian Airlines

Deal found 26/6£892

Mon 7/718:50DUB - SAN

2 stops32h 59mTAP AIR PORTUGAL

Sun 20/711:14SAN - DUB

2 stops22h 51mTAP AIR PORTUGAL

Deal found 25/6£1,614

Mon 7/721:10DUB - SAN

3 stops29h 44mScandinavian Airlines

Sun 20/709:59SAN - DUB

3 stops25h 26mScandinavian Airlines

Deal found 26/6£892

Thu 10/711:35DUB - SAN

2 stops19h 07mLufthansa

Wed 23/717:15SAN - DUB

1 stop15h 40mLufthansa

Deal found 24/6£691

Thu 17/710:40DUB - SAN

1 stop17h 09mJetBlue

Mon 4/811:14SAN - DUB

1 stop13h 46mJetBlue

Deal found 25/6£664

Wed 30/711:35DUB - SAN

1 stop19h 09mMultiple Airlines

Wed 13/808:10SAN - DUB

1 stop15h 35mMultiple Airlines

Deal found 25/6£640

Thu 31/705:55DUB - SAN

2 stops17h 59mDelta

Sat 23/808:00SAN - DUB

1 stop16h 45mDelta

Deal found 25/6£638

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 27 June 2025.

Thu 7/810:00DUB - SAN

3 stops34h 09mWestJet

Deal found 25/6£410

Wed 23/710:40DUB - SAN

1 stop17h 09mJetBlue

Deal found 25/6£450

Thu 7/816:45DUB - SAN

2 stops33h 10mMultiple Airlines

Deal found 25/6£466

Thu 7/810:00DUB - SAN

1 stop20h 38mDelta

Deal found 25/6£1,821

Mon 4/821:10DUB - SAN

3 stops29h 44mScandinavian Airlines

Deal found 25/6£1,840

Thu 7/810:40DUB - SAN

1 stop36h 45mLufthansa

Deal found 25/6£5,965

Fri 8/808:35DUB - SAN

1 stop14h 15mBritish Airways

Deal found 25/6£6,757

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

Fri 5/12

08:50-12:05

1 stop35h 15m

San Diego

Fri 9/1

08:00-08:45

2 stops16h 45m

£543

DublinSan Diego

DUB - SAN

DUBSAN

Dublin

Fri 5/12

09:00-10:53

1 stop33h 53m

San Diego

Fri 9/1

07:00-08:10

1 stop17h 10m

£544

DublinSan Diego

DUB - SAN

DUBSAN

Dublin

Fri 5/12

13:25-12:05

1 stop30h 40m

San Diego

Fri 9/1

12:35-15:40

2 stops19h 05m

£545

DublinSan Diego

DUB - SAN

DUBSAN

Dublin

Mon 11/8

09:20-23:06

2 stops21h 46m

San Diego

Mon 18/8

06:15-11:10

2 stops20h 55m

£630

DublinSan Diego

DUB - SAN

DUBSAN

Dublin

Mon 11/8

09:20-19:38

1 stop18h 18m

San Diego

Mon 18/8

08:10-07:45

1 stop15h 35m

£632

DublinSan Diego

DUB - SAN

DUBSAN

Dublin

Sat 9/8

11:35-22:44

1 stop19h 09m

San Diego

Sat 16/8

17:15-16:55

1 stop15h 40m

£649

DublinSan Diego

DUB - SAN

DUBSAN

Dublin

Thu 17/7

10:40-19:49

1 stop17h 09m

San Diego

Mon 4/8

11:14-09:00

1 stop13h 46m

£664

DublinSan Diego

DUB - SAN

DUBSAN

Dublin

Mon 11/8

21:10-18:54

3 stops29h 44m

San Diego

Mon 18/8

11:10-19:25

3 stops24h 15m

£724

DublinSan Diego

DUB - SAN

DUBSAN

Dublin

Mon 7/7

18:50-19:49

2 stops32h 59m

San Diego

Sun 20/7

11:14-18:05

2 stops22h 51m

£1,614

DublinSan Diego

DUB - SAN

DUBSAN

Dublin

Tue 28/10

13:00-21:23

1 stop15h 23m

San Diego

Wed 12/11

06:24-09:00

1 stop18h 36m

£1,972

Flights are sorted by cheapest return flights first.

Deals found on 25/6

Showing 1-10 of 19 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.

Reviews of airlines servicing San Diego

Get a feel of what it's like to fly with Delta, KLM, andUnited 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.

Delta

8.0

Very Good

7,963 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

7,963 reviews

Delta

8.0

Very Good

7,963 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

1,365 reviews

Delta

8.0

Very Good

7,963 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

8,838 reviews

Delta

8.0

Very Good

7,963 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

JetBlue

7.3

Good

2,921 reviews

Delta

8.0

Very Good

7,963 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

Scandinavian Airlines

7.3

Good

1,412 reviews

Delta

8.0

Very Good

7,963 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 £410. JetBlue flights start at £450 while deals on Delta start at £1,821 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

Coronado

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£493	Average£606	FlexibilityNo cancel fee	On-time70%	Search British Airways flights
United Airlines	Cheapest£523	Average£744	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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Our users can plan ahead with confidence and find flights with no change fees

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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 £410

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 7/8. 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 27 June 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 27 June 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 27 June 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 27 June 2025.

Reviews of airlines servicing San Diego

Get a feel of what it's like to fly with Delta, KLM, andUnited 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.

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 27 June 2025.