Which airlines fly to San Diego?

British Airways is the airline most momondo users in Ireland opt for when booking flights to San Diego. United Airlines and KLM are also popular choices when flying to San Diego from Ireland. Most major airlines flying from Ireland to San Diego will offer flights on a regular basis, though your options may vary depending on what airport you fly from.

KLM Flights to San Diego

The most popular airline for flights to San Diego on momondo is KLM, which operates 19 flights in this direction every week. Most depart out of Atlanta Hartsfield-Jackson, with the best deal for KLM flights to San Diego being €569 (return, Dublin to San Diego, momondo searches within the last 72 hours). In 1,385 KLM reviews, it is rated 7.8 by momondo users.

United Airlines Flights to San Diego

€632 is the best return United Airlines deal to San Diego found on momondo in the last few days. The deal departed from Dublin. United Airlines has 38 flights to San Diego most weeks, with prices varying by availability. 8,934 momondo users have reviewed United Airlines, scoring the airline a 7.4/10 on average.

How long does it take to fly to San Diego?

On average, it takes 14h 15m to fly from Ireland to San Diego if you fly out of Dublin (the most popular airport in Ireland) and into San Diego (the most popular airport in San Diego). If you’re flying out of Cork and into San Diego, then the flight time is around 24h.

€322 Cheap Flights to San Diego in 2025

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Find the cheapest flights from Ireland to San Diego

Round-trip

One-way

Cheap return flights

10:10 - 22:55DUB-SAN

20h 45m2 stops

10:00 - 18:20SAN-DUB

25h 20m3 stops

€513Scandinavian Airlines

Find Deal

Sat, 7 Mar - Tue, 10 Mar

12:30 - 23:06DUB-SAN

41h 36m2 stops

11:02 - 09:25SAN-DUB

38h 23m2 stops

€514Scandinavian Airlines

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Fri, 31 Oct - Thu, 13 Nov

15:15 - 21:03DUB-SAN

13h 48m1 stop

14:30 - 13:20SAN-DUB

15h 50m1 stop

€580

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Sat, 7 Mar - Tue, 10 Mar

11:35 - 18:50DUB-SAN

15h 15m1 stop

08:00 - 05:10SAN-DUB

14h 10m1 stop

€586

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Wed, 22 Oct - Tue, 28 Oct

20:40 - 16:10DUB-SAN

27h 30m1 stop

18:00 - 17:05SAN-DUB

15h 05m1 stop

€656British Airways

Find Deal

Mon, 22 Dec - Mon, 12 Jan

18:00 - 17:10DUB-SAN

30h 10m1 stop

18:00 - 19:45SAN-DUB

17h 45m1 stop

€657British Airways

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Thu, 30 Oct - Wed, 12 Nov

09:20 - 15:51DUB-SAN

14h 31m1 stop

13:47 - 09:55SAN-DUB

13h 08m1 stop

€665United Airlines

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Fri, 17 Oct - Tue, 28 Oct

09:20 - 15:51DUB-SAN

14h 31m1 stop

12:07 - 10:20SAN-DUB

15h 13m2 stops

€666United Airlines

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Sun, 19 Oct - Thu, 30 Oct

05:55 - 15:23DUB-SAN

17h 28m2 stops

07:00 - 08:45SAN-DUB

17h 45m1 stop

€668KLM

Find Deal

Fri, 5 Dec - Fri, 9 Jan

17:20 - 12:00DUB-SAN

26h 40m1 stop

07:40 - 07:45SAN-DUB

17h 05m1 stop

€675KLM

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Sat, 18 Oct - Thu, 30 Oct

Fly from

Route

Depart

Return

Price

DublinSan Diego

DUB - SAN

DUBSAN

Dublin

Sat 7/3

10:10-22:55

2 stops20h 45m

San Diego

Tue 10/3

10:00-18:20

3 stops25h 20m

€513

DublinSan Diego

DUB - SAN

DUBSAN

Dublin

Fri 31/10

12:30-23:06

2 stops41h 36m

San Diego

Thu 13/11

11:02-09:25

2 stops38h 23m

€514

DublinSan Diego

DUB - SAN

DUBSAN

Dublin

Sat 7/3

15:15-21:03

1 stop13h 48m

San Diego

Tue 10/3

14:30-13:20

1 stop15h 50m

€580

DublinSan Diego

DUB - SAN

DUBSAN

Dublin

Wed 22/10

11:35-18:50

1 stop15h 15m

San Diego

Tue 28/10

08:00-05:10

1 stop14h 10m

€586

DublinSan Diego

DUB - SAN

DUBSAN

Dublin

Mon 22/12

20:40-16:10

1 stop27h 30m

San Diego

Mon 12/1

18:00-17:05

1 stop15h 05m

€656

DublinSan Diego

DUB - SAN

DUBSAN

Dublin

Thu 30/10

18:00-17:10

1 stop30h 10m

San Diego

Wed 12/11

18:00-19:45

1 stop17h 45m

€657

DublinSan Diego

DUB - SAN

DUBSAN

Dublin

Fri 17/10

09:20-15:51

1 stop14h 31m

San Diego

Tue 28/10

13:47-09:55

1 stop13h 08m

€665

DublinSan Diego

DUB - SAN

DUBSAN

Dublin

Sun 19/10

09:20-15:51

1 stop14h 31m

San Diego

Thu 30/10

12:07-10:20

2 stops15h 13m

€666

DublinSan Diego

DUB - SAN

DUBSAN

Dublin

Fri 5/12

05:55-15:23

2 stops17h 28m

San Diego

Fri 9/1

07:00-08:45

1 stop17h 45m

€668

DublinSan Diego

DUB - SAN

DUBSAN

Dublin

Sat 18/10

17:20-12:00

1 stop26h 40m

San Diego

Thu 30/10

07:40-07:45

1 stop17h 05m

€675

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

San Diego flights insights and trends

Explore insights for your San Diego flight to craft the best travel plan

Prices

Other information

What is the cheapest month to fly to San Diego?

The cheapest month to fly to San Diego from Ireland is in November. Flight prices, which tend to average around €620, are often lower during this time because this is during the off-season. If you’re not able to fly to San Diego in November, then February is your next best option. Flight prices from Ireland to San Diego during February average around €623.

What is the cheapest day to depart on your flight to San Diego?

The cheapest day to depart from Ireland to San Diego is on a Monday when prices can be found for as low as €641. Be sure to avoid booking your departure on a Sunday as prices are generally higher than usual. According to our data, the average ticket price to San Diego on Sunday is €948.

What is the cheapest time of day to depart on your flight to San Diego?

According to our data, the cheapest time of day to fly to San Diego is in the morning. momondo users have found flights departing from Ireland to San Diego in the morning for as low as €690. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. At midday is when there is more demand to fly to San Diego, so prices are often more expensive at around €704 per ticket.

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

You are more likely to see cheaper flights to San Diego from Ireland when booking weeks ahead of your departure date. In general, you can expect to find flights to San Diego for around €700 when searching weeks before you fly. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to San Diego from Ireland for as low as €621 on momondo.

Cheapest flights to San Diego

Find the cheapest flights to San Diego from your nearest city or airport

Find flights from Dublin to San Diego

CHEAPEST MONTH TO FLY TO SAN DIEGO FROM DUBLIN	November	12% cheaper	Flying from Dublin to San Diego costs on average just €620 in November
MOST EXPENSIVE MONTH TO FLY TO SAN DIEGO FROM DUBLIN	August	22% more expensive	It costs about €860 for flights to San Diego from Dublin in August
MOST POPULAR MONTH TO FLY TO SAN DIEGO FROM DUBLIN	July	400% more users visited	More momondo users searched in flights to San Diego from Dublin in July than any other month

Cheap San Diego flight deals and tips

Summary info about San Diego flight prices, duration and airlines

Best One-Way Price	€322
Best Round-Trip Price	€513
Fastest flight time	14h 00m
Popular in	August

The best one-way flight price to San Diego from Ireland in the last 72 hours is €322 (Dublin to San Diego).

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The best round-trip flight price to San Diego from Ireland in the last 72 hours is €513 (Dublin to San Diego).

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The fastest flight to San Diego from Ireland takes 14h 00m (Dublin to San Diego).

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August has the highest demand for flights to San Diego, with a 13% price increase on average.

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Frequently asked questions about flying to San Diego

When is the best time to plan a beach trip to San Diego?

Beaches like Mission Beach are most often visited during August, as the weather is usually above 70 degrees Fahrenheit (21°C) with a low chance of rain.

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

The ideal time to book your flight to San Diego is 21 days in advance, when prices tend to average €700. Keep in mind that you might be able to find cheaper flights to San Diego at any time. In fact, our users found flights for as low as €456 in the past 72 hours.

Is there an alternative airport near San Diego?

Finding an alternative and possibly cheaper destination airport near San Diego is possible. If you are planning a flight to San Diego, consider booking flights to San Diego Carlsbad-Palomar Airport (47 km from San Diego city centre), Santa Ana J. Wayne/Orange Cnty Airport (126 km from San Diego city centre), Palm Springs Airport (138 km from San Diego city centre), Long Beach Municipal Airport (153 km from San Diego city centre) or Ontario Airport (155 km from San Diego city centre).

When did momondo last update prices for flights to San Diego Airport?

Prices for flights to San Diego Airport are refreshed on a daily basis.

How many operators does momondo search for flights to San Diego Airport?

As of September 2025, there are 4 operators available to choose from for flights to San Diego Airport.

How old do you have to be to fly to San Diego Airport?

The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel to San Diego Airport.

What documentation or ID do you need to fly to San Diego Airport?

The travel and health documents you'll need for your trip to San Diego Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's licence and a passport that is valid for six months after your intended arrival at San Diego Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

Why use momondo?

Why should I use momondo to find a flight deal to San Diego?

We help find the flight that best suits your needs; momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight for you.

Can I find flights to San Diego with flexible booking policies on momondo?

Yes. momondo enables you to select and highlight flights to San Diego with this policy.

How can momondo help me find flights to San Diego?

momondo helps you find the best flight to San Diego by providing filters to narrow your choice of flights to those matching your criteria. You can select fights based on numerous factors such as price, departure and landing times, airport and airline.

I’m not ready to book a flight to San Diego right now. Can momondo alert me if prices change?

Yes momondo offers price alerts on flights to San Diego. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.