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Cheap flights from Dublin to San Diego from £405

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 1/5. Fares are subject to change and may not be available on all flights or dates of travel.
DUB — SAN
6 Jan — 13 Jan1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Dublin to San Diego

Enter your travel dates to find the best prices.

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 7 December 2025.

Thu 11/1211:30DUB - SAN
2 stops18h 23mMultiple Airlines
Sat 27/1208:13SAN - DUB
1 stop14h 57mMultiple Airlines
Deal found 7/12£696
Thu 11/1210:40DUB - SAN
2 stops17h 16mUnited Airlines
Sat 27/1207:00SAN - DUB
2 stops16h 10mUnited Airlines
Deal found 6/12£723
Sat 6/1220:40DUB - SAN
1 stop27h 25mBritish Airways
Sun 14/1218:00SAN - DUB
1 stop14h 50mBritish Airways
Deal found 6/12£743
Sun 7/1205:55DUB - SAN
2 stops17h 28mMultiple Airlines
Sat 13/1207:20SAN - DUB
2 stops16h 25mMultiple Airlines
Deal found 4/12£748
Sat 6/1205:55DUB - SAN
2 stops20h 01mDelta
Sat 13/1206:20SAN - DUB
2 stops17h 25mDelta
Deal found 5/12£749
Sun 7/1209:00DUB - SAN
1 stop34h 53mUnited Airlines
Sat 13/1210:52SAN - DUB
1 stop13h 18mUnited Airlines
Deal found 4/12£753
Sat 6/1209:00DUB - SAN
1 stop34h 53mUnited Airlines
Sat 13/1207:00SAN - DUB
1 stop17h 10mUnited Airlines
Deal found 4/12£754
Sat 6/1209:45DUB - SAN
1 stop18h 57mKLM
Sat 13/1207:50SAN - DUB
1 stop15h 55mKLM
Deal found 4/12£756

Find 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 7 December 2025.

Round-trip from

£481

One-way from

£405

Popular in

August

Cheapest in

January

Average price

£661
Scandinavian Airlines
  • Scandinavian Airlines
  • 20/1-27/1
  • 4 total stops
  • 77h 25m total
  • Dublin to San Diego
Search Deals
JetBlue
  • JetBlue
  • 1/5
  • 1 total stop
  • 15h 13m total
  • Dublin to San Diego
Search Deals
Highest demand for flights based on searches. 11% potential increase in price (£62 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease (£9 potential savings vs. average return price).
Search Deals
Average for round-trip flights in December 2025
Search Deals

Cheapflights Fare Finder

 
Customise 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 858,174 searches. Data last updated 7 December 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

Tue 20/1

12:30-21:05

2 stops40h 35m

San Diego

Tue 27/1

14:55-11:45

2 stops36h 50m

£481

DublinSan Diego

DUB - SAN

DUBSAN

Dublin

Wed 4/2

19:05-22:47

2 stops35h 42m

San Diego

Sun 8/2

14:55-11:45

2 stops36h 50m

£493

DublinSan Diego

DUB - SAN

DUBSAN

Dublin

Fri 17/4

19:00-17:50

1 stop30h 50m

San Diego

Wed 22/4

19:40-17:30

1 stop13h 50m

£583

DublinSan Diego

DUB - SAN

DUBSAN

Dublin

Tue 20/1

08:55-19:08

2 stops18h 13m

San Diego

Tue 27/1

07:05-08:45

1 stop17h 40m

£596

DublinSan Diego

DUB - SAN

DUBSAN

Dublin

Fri 16/1

05:55-20:22

2 stops22h 27m

San Diego

Thu 29/1

07:05-08:45

1 stop17h 40m

£603

DublinSan Diego

DUB - SAN

DUBSAN

Dublin

Mon 19/1

05:55-19:08

2 stops21h 13m

San Diego

Mon 26/1

07:05-08:45

1 stop17h 40m

£604

DublinSan Diego

DUB - SAN

DUBSAN

Dublin

Wed 21/1

05:55-20:37

2 stops22h 42m

San Diego

Wed 28/1

06:35-08:45

2 stops18h 10m

£604

DublinSan Diego

DUB - SAN

DUBSAN

Dublin

Fri 16/1

05:55-18:53

2 stops20h 58m

San Diego

Sat 24/1

07:05-08:45

1 stop17h 40m

£604

DublinSan Diego

DUB - SAN

DUBSAN

Dublin

Wed 4/2

08:50-16:10

1 stop15h 20m

San Diego

Sun 8/2

18:00-19:40

1 stop17h 40m

£618

DublinSan Diego

DUB - SAN

DUBSAN

Dublin

Fri 1/5

11:45-18:58

1 stop15h 13m

£405

Flights are sorted by cheapest return flights first.

Deals found on 5/12

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 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 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 return flight from Dublin to San Diego. Price data was last updated on 5 December 2025.

To ensure you get the cheapest price possible for a flight from Dublin to San Diego, you should look to book at least 21 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

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

Currently, June is the cheapest month in which you can book a flight from Dublin to San Diego (average of £364). Flying from Dublin to San Diego in July is currently the most expensive (average of £605). 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 DUB to SAN?

Find hourly flight availability from Dublin 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 7 December 2025.

It’s typically best to fly out from Dublin to San Diego in the evening. Doing so could potentially save you 25% on the flight price compared to flying in the afternoon, which is usually more expensive.

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 7 December 2025.
Check out reviews from past customers who have flown with United Airlines from Dublin to San Diego to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
United Airlines
7.4
Good
9,072 reviews
Check prices

Crew

8.1

Boarding

7.7

Overall

7.4

Entertainment

7.1

Comfort

7.3

Food

6.6

Reviews

1 / 20
10.0
Excellent

Anonymous,Sept 2025

FRA - SFO

Lufthansa was amazing, I wish United States based airlines operated like them.
United Airlines
7.4
Good
9,072 reviews
United Airlines
7.4
Good
9,072 reviews
Check prices

Crew

8.1

Boarding

7.7

Overall

7.4

Entertainment

7.1

Comfort

7.3

Food

6.6

Reviews

1 / 20
10.0
Excellent

Anonymous,Sept 2025

FRA - SFO

Lufthansa was amazing, I wish United States based airlines operated like them.

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.

  • How long is the flight from Dublin to San Diego?

    A quick flight from Dublin to San Diego can take about 18h 13m. Scandinavian Airlines provides one of the quickest options available for as low as £596. The distance from Dublin to San Diego is about 5194 mi. When browsing for deals, the options you’ll see will be for both direct flights and flights with stops.

  • What is the cheapest airline to fly from Dublin to San Diego round-trip?

    Flying on United Airlines is currently your cheapest option to San Diego, with prices starting at £533. Users have found that United Airlines is 15% cheaper than the other options available to this destination.

  • 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 holiday 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, June is the cheapest month in which you can book a flight from Dublin to San Diego (average of £364). Flying from Dublin to San Diego in July is currently the most expensive (average of £605). 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 San Diego?

Book flights to San Diego if you plan to visit one of these locations
Coronado
El Cajon

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 858,174 searches. Data last updated 7 December 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest£533Average£659FlexibilityNo 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 Dublin to San Diego?

Deals for Dublin to San Diego flights are sourced from 900+ travel sites when you use Cheapflights. When all flight results come back, Cheapflights lets you sort and filter flights using different criteria to choose better, like price, airport, cabin class, and plenty of other options.

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

Cheapflights simply makes it quick and affordable to book flights from Dublin to San Diego by bringing together all flight options from hundreds of airlines and agencies online — and put it in one place for you to choose from. Plus, Cheapflights is 100% free to use for all.

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

Certainly. Search results for flights to San Diego from Dublin 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 Dublin to San Diego become cheaper?

Yes, Cheapflights has a feature called Price Alert, which notifies users when flight prices change. Track prices for your flight to San Diego from Dublin today and book when prices fit your budget.

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