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$351+ Cheap flights from Dublin (DUB) to San Diego (SAN)

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 9/11. Fares are subject to change and may not be available on all flights or dates of travel.
DUB — SAN
Aug 23 — Aug 301
Sat 8/23
Sat 8/30
1 adult, Economy
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Cheapflights Tip: The best prices from Dublin to San Diego are usually found in November or February, booked 21 days in advance, depart on a Friday or Monday and return on a Monday

Cheap flight deals from Dublin to San Diego

Discover tips and strategies to find the most affordable flight options for your journey from Dublin (DUB) to San Diego (SAN). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated August 18, 2025.

Round-trip from

$655
(OneTravel)

One-way from

$351
(Kiwi.com)

Popular in

August

Cheapest in

November

Average price

$1,009
From Dublin to San Diego
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One-way flight from Dublin to San Diego
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Highest demand for flights based on searches. 13% potential increase in price ($125 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($18 potential savings vs. average RT price).
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Average for round-trip flights in August 2025
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Find flight deals from Dublin to San Diego

Cheapest flights from Dublin to San Diego
Explore the most affordable flight options available from Dublin to San Diego. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 18, 2025.

This OneTravel deal was found by Cheapflights users on 8/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure OneTravel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/1912:30 pmDUB - SAN
2 stops40h 19mScandinavian Airlines
Wed 11/2610:00 amSAN - DUB
2 stops41h 45mScandinavian Airlines
Deal found 8/16$655
This OneTravel deal was found by Cheapflights users on 8/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure OneTravel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/112:40 pmDUB - SAN
2 stops42h 49mScandinavian Airlines
Wed 10/88:00 amSAN - DUB
2 stops43h 50mScandinavian Airlines
Deal found 8/17$659
This Kiwi.com deal was found by Cheapflights users on 8/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/133:25 pmDUB - SAN
1 stop14h 59mMultiple Airlines
Sat 9/207:15 amSAN - DUB
1 stop20h 20mMultiple Airlines
Deal found 8/16$672
This Kiwi.com deal was found by Cheapflights users on 8/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/151:00 pmDUB - SAN
1 stop18h 44mMultiple Airlines
Mon 9/2211:28 amSAN - DUB
1 stop16h 17mMultiple Airlines
Deal found 8/16$739
This Aunt Betty deal was found by Cheapflights users on 8/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Aunt Betty is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/118:45 amDUB - SAN
1 stop15h 25mAer Lingus
Thu 12/256:22 amSAN - DUB
2 stops19h 53mAer Lingus
Deal found 8/17$767
This Bravofly deal was found by Cheapflights users on 8/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Bravofly is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/2811:30 amDUB - SAN
1 stop15h 27mJetBlue
Wed 9/1010:11 amSAN - DUB
1 stop14h 09mJetBlue
Deal found 8/17$777
This oojo deal was found by Cheapflights users on 8/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/1512:15 pmDUB - SAN
2 stops30h 15mIcelandair
Wed 10/228:15 pmSAN - DUB
2 stops30h 50mIcelandair
Deal found 8/16$780
This Kiwi.com deal was found by Cheapflights users on 8/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/1510:45 amDUB - SAN
2 stops40h 05mMultiple Airlines
Wed 10/228:48 amSAN - DUB
1 stop15h 37mMultiple Airlines
Deal found 8/16$792
This Booking.com deal was found by Cheapflights users on 8/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/198:40 pmDUB - SAN
1 stop27h 30mBritish Airways
Wed 11/266:00 pmSAN - DUB
1 stop15h 00mBritish Airways
Deal found 8/17$795
This Expedia deal was found by Cheapflights users on 8/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/1511:30 amDUB - SAN
1 stop16h 00mJetBlue
Wed 10/2210:10 amSAN - DUB
1 stop14h 10mJetBlue
Deal found 8/16$796

Cheapflights Fare Finder

 
Customize your flight search to find flights from Dublin 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 2,558,603 searches. Data last updated August 18, 2025.
Use the filters below to find and compare flights from Dublin to San Diego that are best for you.

Fly from

Dublin

Fly to

San Diego

Route

Depart

Return

Price

DublinSan Diego

DUB - SAN

DUBSAN

Dublin

Wed 11/19

12:30 pm-8:49 pm

2 stops40h 19m

San Diego

Wed 11/26

10:00 am-11:45 am

2 stops41h 45m

$655

DublinSan Diego

DUB - SAN

DUBSAN

Dublin

Wed 10/1

12:40 pm-11:29 pm

2 stops42h 49m

San Diego

Wed 10/8

8:00 am-11:50 am

2 stops43h 50m

$659

DublinSan Diego

DUB - SAN

DUBSAN

Dublin

Sat 9/13

3:25 pm-10:24 pm

1 stop14h 59m

San Diego

Sat 9/20

7:15 am-11:35 am

1 stop20h 20m

$672

DublinSan Diego

DUB - SAN

DUBSAN

Dublin

Wed 10/22

11:35 am-10:59 pm

1 stop19h 24m

San Diego

Sun 10/26

8:00 am-5:10 am

1 stop14h 10m

$739

DublinSan Diego

DUB - SAN

DUBSAN

Dublin

Mon 9/15

1:00 pm-11:44 pm

1 stop18h 44m

San Diego

Mon 9/22

11:28 am-11:45 am

1 stop16h 17m

$739

DublinSan Diego

DUB - SAN

DUBSAN

Dublin

Thu 12/11

8:45 am-4:10 pm

1 stop15h 25m

San Diego

Thu 12/25

6:22 am-10:15 am

2 stops19h 53m

$767

DublinSan Diego

DUB - SAN

DUBSAN

Dublin

Thu 8/28

11:30 am-6:57 pm

1 stop15h 27m

San Diego

Wed 9/10

10:11 am-8:20 am

1 stop14h 09m

$777

DublinSan Diego

DUB - SAN

DUBSAN

Dublin

Wed 10/15

12:15 pm-10:30 am

2 stops30h 15m

San Diego

Wed 10/22

8:15 pm-11:05 am

2 stops30h 50m

$780

DublinSan Diego

DUB - SAN

DUBSAN

Dublin

Thu 12/11

1:10 pm-4:10 pm

1 stop35h 00m

San Diego

Thu 12/25

6:00 pm-5:25 pm

1 stop15h 25m

$792

DublinSan Diego

DUB - SAN

DUBSAN

Dublin

Thu 9/11

9:10 am-6:16 pm

3 stops41h 06m

$351

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/17

Showing 1-10 of 16 results
1
2

Best time to book a flight from Dublin to San Diego

Have a flexible travel schedule? Discover the best time to fly to San Diego from Dublin with our price prediction graph.
Estimated round-trip 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 Dublin to San Diego

How far ahead should I book a flight from Dublin to San Diego?

Use this chart to determine the optimal time to book a round-trip flight from Dublin to San Diego. Price data was last updated on August 8, 2025.

Booking 21 days in advance of your planned departure date is, on average, the best time to get cheap flights from Dublin to San Diego. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

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

Currently, August is the cheapest month in which you can book a flight from Dublin to San Diego (average of $286). Flying from Dublin to San Diego in March is currently the most expensive (average of $366). 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.

How much does it cost to fly round-trip from Dublin to San Diego?

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 August 18, 2025.
Read through reviews of airlines operating flights from Dublin to San Diego, such as United Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
United Airlines
7.4
Good
8,925 reviews

Food

6.6

Crew

8.1

Entertainment

7.1

Boarding

7.7

Comfort

7.3

Overall

7.4

Reviews

1 / 20
4.0
Okay

Thomas,Apr 2025

TPE - SFO

The boarding experience was okay. The dietary food choices were limited, the midway snacks were hard and dry. The seat was uncomfortable - stiff seat cushion, seat back kept springing back to the upright position, narrow seat width. Love the app and the ability to track my luggage. Flight crew was efficient.
United Airlines
7.4
Good
8,925 reviews
United Airlines
7.4
Good
8,925 reviews

Food

6.6

Crew

8.1

Entertainment

7.1

Boarding

7.7

Comfort

7.3

Overall

7.4

Reviews

1 / 20
4.0
Okay

Thomas,Apr 2025

TPE - SFO

The boarding experience was okay. The dietary food choices were limited, the midway snacks were hard and dry. The seat was uncomfortable - stiff seat cushion, seat back kept springing back to the upright position, narrow seat width. Love the app and the ability to track my luggage. Flight crew was efficient.

Related info for your journey

Find useful and relevant information for your journey from Dublin 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 is the cheapest airline to fly from Dublin to San Diego round-trip?

    United Airlines, at $726, was found to be the cheapest airline from Dublin to San Diego.. United Airlines is priced at 11% lower than the current average price of a flight leaving 3 months from now.

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

    Yes. In addition to deals on Dublin to San Diego flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Dublin to San Diego?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Dublin to San Diego.

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

    Yes. Cheapflights offers flight deals from Dublin 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 Dublin to San Diego?

    Currently, August is the cheapest month in which you can book a flight from Dublin to San Diego (average of $286). Flying from Dublin to San Diego in March is currently the most expensive (average of $366). 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

Traveling to a place near San Diego?

Book flights to San Diego if you plan to visit one of these locations
El Cajon
Chula Vista
Coronado
La Mesa
Poway
National City
Lemon Grove
Imperial Beach
Alpine

Browse thousands of different options on Cheapflights for your next trip

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Top airline flying from Dublin to San Diego

Discover the top airline that operate flights from Dublin 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 2,558,603 searches. Data last updated August 18, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$726Average$789FlexibilityNo cancel feeOn-time69%

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