Question 1

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

Accepted Answer

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.

Question 2

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

Accepted Answer

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

Question 3

How can momondo help me find flights to San Diego?

Accepted Answer

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.

Question 4

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

Accepted Answer

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.

Question 5

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

Accepted Answer

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.

Question 6

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

Accepted Answer

The ideal time to book your flight to San Diego is 21 days in advance, when prices tend to average €713. 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.

Question 7

Is there an alternative airport near San Diego?

Accepted Answer

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).

Question 8

Which airlines fly to San Diego?

Accepted Answer

British Airways is the airline most momondo users in Ireland opt for when booking flights to San Diego. United Airlines, Aer Lingus and American Airlines 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.

Question 9

United Airlines Flights to San Diego

Accepted Answer

The most popular airline for flights to San Diego on momondo is United Airlines, which operates 40 flights in this direction every week. Most depart out of Denver Intl, with the best deal for United Airlines flights to San Diego being €632 (return, Dublin to San Diego, momondo searches within the last 72 hours). In 9,094 United Airlines reviews, it is rated 7.4 by momondo users.

Question 10

American Airlines Flights to San Diego

Accepted Answer

€627 is the best return American Airlines deal to San Diego found on momondo in the last few days. The deal departed from Dublin. American Airlines has 43 flights to San Diego most weeks, with prices varying by availability. 11,054 momondo users have reviewed American Airlines, scoring the airline a 7.2/10 on average.

Question 11

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

Accepted Answer

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

Question 12

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

Accepted Answer

As of December 2025, there are 5 operators available to choose from for flights to San Diego Airport.

Question 13

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

Accepted Answer

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.

Question 14

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

Accepted Answer

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.

Question 15

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

Accepted Answer

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.

Question 16

How long does it take to fly to San Diego?

Accepted Answer

On average, it takes 20h 43m 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 16h 30m.

Question 17

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

Accepted Answer

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.

Question 18

What is the cheapest month to fly to San Diego?

Accepted Answer

The cheapest month to fly to San Diego from Ireland is in January. Flight prices, which tend to average around €636, are often lower during this time because this is during the off-season. If you’re not able to fly to San Diego in January, then March is your next best option. Flight prices from Ireland to San Diego during March average around €650.

Question 19

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

Accepted Answer

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 €713 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 €646 on momondo.

CHEAPEST MONTH TO FLY TO SAN DIEGO FROM DUBLIN	January	11% cheaper	Flying from Dublin to San Diego costs on average just €636 in January
MOST EXPENSIVE MONTH TO FLY TO SAN DIEGO FROM DUBLIN	August	20% more expensive	It costs about €859 for flights to San Diego from Dublin in August
MOST POPULAR MONTH TO FLY TO SAN DIEGO FROM DUBLIN	July	350% more users visited	More momondo users searched in flights to San Diego from Dublin in July than any other month

Best One-Way Price	€350
Best Round-Trip Price	€550
Fastest flight time	49h 45m
Popular in	August

€350 Cheap flights to San Diego

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight to San Diego departing on 24/1. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

Big names, great deals

Big names, great deals

Filter for what you want

Filter for what you want

Trusted and free

Trusted and free

Price Alerts

Price Alerts

Find the cheapest flights from Ireland to San Diego

Cheap return flights

Cheap one-way flights

Cheap last-minute flights

momondo Fare Finder

Use the filters below to find and compare flights to San Diego that are best for you.

See travel insights to San Diego from

San Diego flights insights and trends

What is the cheapest month to fly to San Diego?

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?

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

How long does it take to fly to San Diego?

On average, it takes 20h 43m 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 16h 30m.

Cheapest flights to San Diego

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

Cheap San Diego flight deals and tips

Summary info about San Diego flight prices, duration and airlines

Best One-Way Price

Best Round-Trip Price

Fastest flight time

Popular in

Frequently asked questions about flying to San Diego

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

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

Is there an alternative airport near San Diego?

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

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

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

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

Why use momondo?

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

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

How can momondo help me find flights to San Diego?

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

An easier way to manage your San Diego trip

We make it super easy to schedule, organise and travel with friends or family. Trips is free – and available to use no matter where you book.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

Find better results for your trip to San Diego

Popular Flights to San Diego

Popular routes according to searches in the past day on momondo