$382 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 9/13. 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

Mon, Sep 1 - Mon, Sep 15
 Logo
12:50 pm - 8:19 pmDUB-SAN
15h 29m1 stop
 Logo
8:33 am - 8:15 amSAN-DUB
15h 42m1 stop
Fri, Sep 12 - Fri, Sep 19
 Logo
7:50 am - 6:42 pmDUB-SAN
42h 52m3 stops
 Logo
6:15 am - 7:00 pmSAN-DUB
28h 45m3 stops
Fri, Oct 10 - Fri, Oct 17
JetBlue Logo
11:30 am - 7:30 pmDUB-SAN
16h 00m1 stop
JetBlue Logo
10:10 am - 8:20 amSAN-DUB
14h 10m1 stop
$775JetBlue
Find Deal
Thu, Aug 28 - Wed, Sep 10
JetBlue Logo
10:40 am - 7:48 pmDUB-SAN
17h 08m1 stop
JetBlue Logo
10:11 am - 8:20 amSAN-DUB
14h 09m1 stop
$780JetBlue
Find Deal
Fri, Sep 12 - Fri, Sep 19
Icelandair Logo
12:15 pm - 10:58 pmDUB-SAN
18h 43m2 stops
Icelandair Logo
9:35 pm - 11:05 amSAN-DUB
29h 30m2 stops
$795Icelandair
Find Deal
Fri, Dec 5 - Fri, Jan 9
British Airways Logo
8:50 am - 4:10 pmDUB-SAN
15h 20m1 stop
British Airways Logo
6:00 pm - 7:50 pmSAN-DUB
17h 50m1 stop
$802British Airways
Find Deal
Fri, Dec 5 - Fri, Jan 9
British Airways Logo
8:35 pm - 4:10 pmDUB-SAN
27h 35m1 stop
British Airways Logo
6:00 pm - 7:50 pmSAN-DUB
17h 50m1 stop
$808British Airways
Find Deal
Wed, Nov 5 - Sat, Nov 29
United Airlines Logo
9:00 am - 11:18 amDUB-SAN
34h 18m1 stop
United Airlines Logo
6:15 am - 8:10 amSAN-DUB
17h 55m2 stops
$809United Airlines
Find Deal
Wed, Nov 5 - Sat, Nov 29
United Airlines Logo
9:00 am - 10:29 pmDUB-SAN
21h 29m2 stops
United Airlines Logo
6:15 am - 8:10 amSAN-DUB
17h 55m2 stops
$814United Airlines
Find Deal
Fri, Dec 5 - Fri, Jan 9
Icelandair Logo
11:30 am - 12:07 amDUB-SAN
20h 37m2 stops
Icelandair Logo
9:40 am - 10:15 amSAN-DUB
16h 35m2 stops
$829Icelandair
Find Deal
Booking Insights

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 $994 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, which saves you about 18% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 7 weeks before departure.


Good to know

Low seasonFebruary
Cheapest flight$382
Best time to beat the crowds with an average 11% drop in price.
Most popular time to fly with an average 21% 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 2,333 direct flights from within Ireland to San Diego. The most common day for departures is Sunday, 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.

Reviews of the 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 8894 reviews
6.6Food
8.1Crew
7.3Comfort
7.1Entertainment
7.7Boarding
Airline reviews

Ok. Get a different kosher caterer. The food was odd.

10.0 ExcellentMarian, Jul 2025MUC - LAX
Read more United Airlines reviews

Ok. Get a different kosher caterer. The food was odd.

Our experience on United Airlines was extremely poor. The plane was extremely cold throughout our entire flight- which multiple people complained about- and we had to wait 2 hours to get a blanket which was too thin and barely helped warm us up. As well as this, none of the entertainment features were working so we had to sit through a roughly 10 hour flight with nothing to keep our attention, including the actual flight path screen. It was an extremely disappointing experience and I would hope that this gets fixed if we ever choose United Airlines again.

I really enjoyed flying with United airlines amazing experience , good customer service and great food

1.It will be better if sandwich is warm. 2.The food is too salty. 3.Breakfast needs some vegetables or fruits.

Boarded plane and then delayed 1.5 hours while on the plane

It was all good flight was on time, service was good I enjoyed a few movies and everything was smooth

Horrific. They missed my connecting flight to San Diego. I didn’t get there until Monday at 9am when I had a mandatory court settlement conference scheduled at 6am since we had parties on the east coast. This caused many issues. All because United apparently forgot to hold the doors open until my flight landed that only had a 10 minute delay. This was the last flight to Southern California. So I couldn’t even rent a car to finish the trip. United cannot be trusted when traveling on specific days and times since weather didn’t have anything to do with the delays.

My flight was delayed a very short period of time but they did not hold my connecting flight to San Diego, also through United. So they closed the doors before we got off our plane. They would only have to help the door open for another five to ten minutes. So I missed a court deadline for a manditory mediation settlement conference for my client. I had to get an associate to be there in person and be on the phone with him relaying what he needs to do the entire time. The court was very upset with me and so was my client. United cannot be trusted.

We were given vouchers we couldn’t use with a 5.5 hour delay

Really good 😊 the woman at the gate entrance was a little rude checking in our carry-on but i dont think she worked for the airline, she worked for the airport at sacramento, other than that amazing.

Everything you need to know for your flight to San Diego

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

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