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 £335. JetBlue flights start at £401 while deals on Finnair start at £407 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 53% 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 £612 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 £768 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 £612. Cheapflights users have found deals in the month of November for as cheap as £483. 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.

£335+ Flights from Ireland to San Diego

Cheap flight deals from Ireland to San Diego

Round-trip from	£506
One-way from	£335
Popular in	August
Cheapest in	November
Average price	£742

29/8-31/8
6 total stops
56h 02m total
Ireland to San Diego

Search Deals

WestJet
13/10
2 total stops
57h 50m total
Ireland to San Diego

Search Deals

Highest demand for flights based on searches. 13% potential increase in price (£73 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 July 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 18 July 2025.

Fri 29/820:50DUB - SAN

3 stops34h 47mMultiple Airlines

Sun 31/806:15SAN - DUB

3 stops21h 15mMultiple Airlines

Deal found 16/7£506

Sat 30/810:15DUB - SAN

2 stops20h 39mScandinavian Airlines

Sat 6/907:30SAN - DUB

2 stops24h 40mScandinavian Airlines

Deal found 15/7£540

Fri 29/812:15DUB - SAN

2 stops39h 33mIcelandair

Sun 31/811:16SAN - DUB

2 stops17h 59mIcelandair

Deal found 16/7£590

Mon 1/910:40DUB - SAN

1 stop17h 08mJetBlue

Mon 8/910:10SAN - DUB

1 stop14h 10mJetBlue

Deal found 17/7£591

Fri 5/1205:55DUB - SAN

2 stops20h 44mDelta

Fri 9/111:50SAN - DUB

2 stops19h 55mDelta

Deal found 18/7£621

Fri 29/809:50DUB - SAN

2 stops20h 03mAir Canada

Sun 31/808:10SAN - DUB

1 stop15h 35mAir Canada

Deal found 16/7£639

Sat 30/809:20DUB - SAN

1 stop18h 18mUnited Airlines

Sat 6/910:54SAN - DUB

2 stops16h 16mUnited Airlines

Deal found 15/7£641

Mon 25/809:00DUB - SAN

2 stops18h 46mLufthansa

Sun 7/911:17SAN - DUB

2 stops15h 03mLufthansa

Deal found 18/7£646

Mon 1/918:40DUB - SAN

2 stops34h 08mSWISS

Mon 8/912:52SAN - DUB

2 stops39h 18mSWISS

Deal found 17/7£659

Wed 30/711:45DUB - SAN

1 stop20h 24mAmerican Airlines

Tue 12/816:20SAN - DUB

2 stops16h 45mAmerican Airlines

Deal found 16/7£734

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 18 July 2025.

Fri 29/820:50DUB - SAN

3 stops34h 47mMultiple Airlines

Sun 31/806:15SAN - DUB

3 stops21h 15mMultiple Airlines

Deal found 16/7£506

Sat 30/810:15DUB - SAN

2 stops20h 39mScandinavian Airlines

Sat 6/907:30SAN - DUB

2 stops24h 40mScandinavian Airlines

Deal found 15/7£540

Fri 29/812:15DUB - SAN

2 stops39h 33mIcelandair

Sun 31/811:16SAN - DUB

2 stops17h 59mIcelandair

Deal found 16/7£590

Mon 1/910:40DUB - SAN

1 stop17h 08mJetBlue

Mon 8/910:10SAN - DUB

1 stop14h 10mJetBlue

Deal found 17/7£591

Thu 8/105:00DUB - SAN

2 stops20h 10mLufthansa

Tue 27/107:00SAN - DUB

2 stops20h 00mLufthansa

Deal found 18/7£600

Thu 8/108:50DUB - SAN

2 stops20h 07mDelta

Tue 27/122:10SAN - DUB

1 stop26h 35mDelta

Deal found 18/7£607

Thu 8/108:50DUB - SAN

1 stop15h 20mBritish Airways

Tue 27/118:00SAN - DUB

1 stop15h 00mBritish Airways

Deal found 18/7£614

Fri 29/809:50DUB - SAN

2 stops20h 03mAir Canada

Sun 31/808:10SAN - DUB

1 stop15h 35mAir Canada

Deal found 16/7£639

Sat 30/809:20DUB - SAN

1 stop18h 18mUnited Airlines

Sat 6/910:54SAN - DUB

2 stops16h 16mUnited Airlines

Deal found 15/7£641

Mon 1/918:40DUB - SAN

2 stops34h 08mSWISS

Mon 8/912:52SAN - DUB

2 stops39h 18mSWISS

Deal found 17/7£659

Wed 30/711:45DUB - SAN

1 stop20h 24mAmerican Airlines

Tue 12/816:20SAN - DUB

2 stops16h 45mAmerican Airlines

Deal found 16/7£734

Last-minute flights from Ireland to San Diego
Discover last-minute flight deals from Ireland to San Diego. Data last updated 18 July 2025 and is based on user searches.

Wed 23/713:35DUB - SAN

2 stops18h 09mUnited Airlines

Wed 30/712:44SAN - DUB

1 stop13h 36mUnited Airlines

Deal found 16/7£749

Wed 30/711:45DUB - SAN

1 stop20h 24mAmerican Airlines

Tue 12/816:20SAN - DUB

2 stops16h 45mAmerican Airlines

Deal found 16/7£734

Mon 25/811:30DUB - SAN

1 stop15h 27mJetBlue

Sun 7/920:15SAN - DUB

1 stop28h 45mJetBlue

Deal found 18/7£591

Mon 25/809:00DUB - SAN

2 stops18h 46mLufthansa

Sun 7/911:17SAN - DUB

2 stops15h 03mLufthansa

Deal found 18/7£646

Thu 28/805:55DUB - SAN

2 stops17h 59mDelta

Wed 10/906:20SAN - DUB

2 stops18h 25mDelta

Deal found 16/7£655

Fri 29/820:50DUB - SAN

3 stops34h 47mMultiple Airlines

Sun 31/806:15SAN - DUB

3 stops21h 15mMultiple Airlines

Deal found 16/7£506

Fri 29/812:15DUB - SAN

2 stops39h 33mIcelandair

Sun 31/811:16SAN - DUB

2 stops17h 59mIcelandair

Deal found 16/7£590

Fri 29/809:50DUB - SAN

2 stops20h 03mAir Canada

Sun 31/808:10SAN - DUB

1 stop15h 35mAir Canada

Deal found 16/7£639

Sat 30/810:15DUB - SAN

2 stops20h 39mScandinavian Airlines

Sat 6/907:30SAN - DUB

2 stops24h 40mScandinavian Airlines

Deal found 15/7£540

Sat 30/809:20DUB - SAN

1 stop18h 18mUnited Airlines

Sat 6/919:21SAN - DUB

3 stops30h 24mUnited Airlines

Deal found 16/7£641

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 18 July 2025.

Mon 13/1011:30DUB - SAN

2 stops57h 50mWestJet

Deal found 16/7£335

Thu 23/1010:40DUB - SAN

1 stop31h 50mJetBlue

Deal found 17/7£401

Thu 28/813:45DUB - SAN

1 stop17h 38mFinnair

Deal found 18/7£407

Fri 1/805:45DUB - SAN

2 stops45h 12mMultiple Airlines

Deal found 16/7£566

Mon 13/1008:50DUB - SAN

3 stops19h 26mUnited Airlines

Deal found 18/7£975

Fri 8/812:15DUB - SAN

2 stops19h 50mIcelandair

Deal found 17/7£1,079

Mon 4/821:10DUB - SAN

3 stops29h 44mScandinavian Airlines

Deal found 17/7£1,905

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 29/8

20:50-23:37

3 stops34h 47m

San Diego

Sun 31/8

06:15-11:30

3 stops21h 15m

£506

DublinSan Diego

DUB - SAN

DUBSAN

Dublin

Sat 30/8

10:15-22:54

2 stops20h 39m

San Diego

Sat 6/9

07:30-16:10

2 stops24h 40m

£540

DublinSan Diego

DUB - SAN

DUBSAN

Dublin

Fri 29/8

12:15-19:48

2 stops39h 33m

San Diego

Sun 31/8

11:16-13:15

2 stops17h 59m

£590

DublinSan Diego

DUB - SAN

DUBSAN

Dublin

Mon 1/9

10:40-19:48

1 stop17h 08m

San Diego

Mon 8/9

10:10-08:20

1 stop14h 10m

£591

DublinSan Diego

DUB - SAN

DUBSAN

Dublin

Thu 8/1

05:00-17:10

2 stops20h 10m

San Diego

Tue 27/1

07:00-11:00

2 stops20h 00m

£600

DublinSan Diego

DUB - SAN

DUBSAN

Dublin

Thu 8/1

08:50-20:57

2 stops20h 07m

San Diego

Tue 27/1

22:10-08:45

1 stop26h 35m

£607

DublinSan Diego

DUB - SAN

DUBSAN

Dublin

Thu 8/1

08:50-16:10

1 stop15h 20m

San Diego

Tue 27/1

18:00-17:00

1 stop15h 00m

£614

DublinSan Diego

DUB - SAN

DUBSAN

Dublin

Fri 29/8

09:50-21:53

2 stops20h 03m

San Diego

Sun 31/8

08:10-07:45

1 stop15h 35m

£639

DublinSan Diego

DUB - SAN

DUBSAN

Dublin

Sat 30/8

09:20-19:38

1 stop18h 18m

San Diego

Sat 6/9

10:54-11:10

2 stops16h 16m

£641

DublinSan Diego

DUB - SAN

DUBSAN

Dublin

Mon 1/9

18:40-20:48

2 stops34h 08m

San Diego

Mon 8/9

12:52-12:10

2 stops39h 18m

£659

Flights are sorted by cheapest return flights first.

Deals found on 17/7

Showing 1-10 of 18 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, Finnair, andSWISS 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

7,958 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

7,958 reviews

Delta

8.0

Very Good

7,958 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

1,316 reviews

Delta

8.0

Very Good

7,958 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

1,661 reviews

Delta

8.0

Very Good

7,958 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

8,865 reviews

Delta

8.0

Very Good

7,958 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

2,907 reviews

Delta

8.0

Very Good

7,958 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 £335. JetBlue flights start at £401 while deals on Finnair start at £407 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£502	Average£620	FlexibilityNo cancel fee	On-time70%	Search British Airways flights
United Airlines	Cheapest£530	Average£760	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.

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.

Cheap flights from Ireland to San Diego from £335

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 13/10. 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 18 July 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 18 July 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 18 July 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 18 July 2025.

Reviews of airlines servicing San Diego

Get a feel of what it's like to fly with Delta, Finnair, andSWISS 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 San Diego?

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?

100% Free

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 18 July 2025.