$371 Find Cheap Flights from Ireland to San Diego

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight to San Diego departing on 10/2. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy

KAYAK searches hundreds of travel sites at once for deals on flights to San Diego

 
These are the airlines KAYAK users have selected most often from within our search results for flights to San Diego, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results for flights to San Diego, as well as popular online travel agencies
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Cheap Flights from Ireland to San Diego

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Ireland to San Diego that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Ireland to San Diego

Wed, Oct 8 - Tue, Oct 14
Scandinavian Airlines Logo
7:05 pm - 6:56 pmDUB-SAN
31h 51m2 stops
Scandinavian Airlines Logo
10:00 am - 6:15 pmSAN-DUB
24h 15m2 stops
$665Scandinavian Airlines
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Fri, Dec 5 - Fri, Jan 9
Delta Logo
1:25 pm - 12:05 pmDUB-SAN
30h 40m1 stop
Delta Logo
12:35 pm - 3:40 pmSAN-DUB
19h 05m2 stops
$738Delta
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Fri, Dec 5 - Fri, Jan 9
KLM Logo
8:50 am - 12:05 pmDUB-SAN
35h 15m1 stop
KLM Logo
7:00 am - 8:45 amSAN-DUB
17h 45m1 stop
$739KLM
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Fri, Dec 5 - Fri, Jan 9
KLM Logo
1:25 pm - 12:05 pmDUB-SAN
30h 40m1 stop
KLM Logo
7:00 am - 8:45 amSAN-DUB
17h 45m1 stop
$741KLM
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Wed, Oct 8 - Tue, Oct 14
British Airways Logo
10:50 am - 6:00 pmDUB-SAN
15h 10m1 stop
British Airways Logo
4:40 pm - 7:30 pmSAN-DUB
18h 50m1 stop
$759British Airways
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Fri, Nov 14 - Sun, Nov 30
Logo
2:05 pm - 8:26 amDUB-SAN
26h 21m1 stop
Logo
8:40 am - 7:15 amSAN-DUB
14h 35m1 stop
$777
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Tue, Nov 11 - Sun, Nov 30
British Airways Logo
8:30 pm - 4:05 pmDUB-SAN
27h 35m1 stop
British Airways Logo
6:10 pm - 7:55 amSAN-DUB
29h 45m1 stop
$789British Airways
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Fri, Nov 14 - Sun, Nov 30
United Airlines Logo
9:00 am - 9:53 pmDUB-SAN
20h 53m3 stops
United Airlines Logo
10:00 pm - 10:05 amSAN-DUB
28h 05m1 stop
$795United Airlines
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Fri, Nov 14 - Sun, Nov 30
United Airlines Logo
9:00 am - 9:53 pmDUB-SAN
20h 53m3 stops
United Airlines Logo
6:15 am - 7:10 amSAN-DUB
16h 55m2 stops
$801United Airlines
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Wed, Jul 2 - Wed, Jul 23
Logo
11:30 am - 12:09 pmDUB-SAN
32h 39m2 stops
Logo
6:15 am - 10:55 pmSAN-DUB
32h 40m3 stops
$806
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KAYAK's insights & trends for flights to San Diego

Get data-powered insights and trends for flights to San Diego to help you find the cheapest flights, the best time to fly and much more.

What is the cheapest month to fly to San Diego?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for flights to San Diego, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights to San Diego is November, where tickets cost $728 on average for return flights. On the other hand, the most expensive months are August and July, where the average cost of tickets from Ireland is $1,025 and $1,003 respectively. For one-way flights, the best month to travel is November with an average price of $728.

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

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights to San Diego, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

To get a below average price, you should book around 4 weeks before departure. For the absolute cheapest price, our data suggests you should book 7 weeks before departure.

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Good to know

Low seasonFebruary
High seasonJuly
Cheapest flight$371
Best time to beat the crowds with an average 12% drop in price.
Most popular time to fly with an average 22% increase in price.
Flight from Dublin to San Diego

FAQs - booking San Diego flights

  • How far is San Diego Airport from central San Diego?

    Central San Diego is 3 miles away from San Diego Airport.

  • What is the name of San Diego’s airport?

    There is only 1 airport in San Diego, called San Diego Airport (SAN). It can also be referred to as Lindbergh Field, San Diego, or San Diego Intl.

  • What is the cheapest day to fly to San Diego?

    Based on KAYAK data, the cheapest day to fly to San Diego is Friday where round-trip tickets can be as cheap as $780. On the other hand, the most expensive day to fly is Tuesday, where round-trip prices are $869 on average.

  • How does KAYAK find such low prices on flights to San Diego?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights to San Diego.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket to San Diego?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to San Diego is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights to San Diego?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to San Diego with an airline and back with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight to San Diego?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to San Diego up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

  • What is the cheapest time of day to fly to San Diego?

    The cheapest time of day to fly to San Diego is generally in the afternoon, when round-trip flights cost $774 on average. The most expensive time of day to fly to San Diego is generally in the morning, which is peak travel time and where the average cost of a ticket is $811.

  • How many direct flights to San Diego are there each week?

    Each week there are around 2,221 direct flights from within Ireland to San Diego. The most common day for departures is Friday, with 16% of flights taking off on this day.

Top tips for finding cheap flights to San Diego

  • Enter your preferred departure airport and travel dates into the search form above to unlock the latest San Diego flight deals.

Top airline flying from Ireland to San Diego

 
See real verified KAYAK customer reviews for airlines flying to San Diego. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline from Ireland to San Diego. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with to San Diego? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.4
United AirlinesOverall score based on 8791 reviews
8.1Crew
7.7Boarding
7.3Comfort
6.6Food
7.1Entertainment
Airline reviews

Boarding was mayhem. Late boarding by 15 minutes because of lack of staff (missing 1 flight attendant. We had to wait for an arrival of another plane before we could board). Flight was a little rough, but cannot blame on airlines.

8.0 ExcellentLawrence, Jun 2025HNL - SFO
Read more United Airlines reviews

Boarding was mayhem. Late boarding by 15 minutes because of lack of staff (missing 1 flight attendant. We had to wait for an arrival of another plane before we could board). Flight was a little rough, but cannot blame on airlines.

Great experience…left a bit behind schedule but made up fir that in the air and landed 10 minutes early 😁

Airbus plane, nice and polite staff, entertainment even as it was a short flight.

United out of SFO is having issues with catering so none of our meals were loaded on the plane and no offer of compensation for our tickets purchased was offered.

Its good expeince but in enternteiment please be like you tube the music i like or movie

I needed to make changes to my flights. When I called customer service, they assisted me with care professionalism.

A bit rush for transit. Food and entertainment are not available

Wonderful and fast TSA checkpoint. The line was fast and our gate was close by

The gate was too far away for the connecting flight

Generally good. The aisles have gotten narrower which can slow down boarding. Flight crew was great! Healthier complimentary snacks would be appreciated. Due to earthquake in San Francisco we had to circle in air space for a bit but then had a smooth landing. I laud the flight crew for their patience ;)

Everything you need to know for your flight to San Diego

Information on the airport you'll fly into in San Diego

San Diego (SAN)

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