SAN - SNN

€521 Find Cheap Flights from San Diego to Shannon – Compare and Save

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1 adult, Economy, 0 bags

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Everything you should know

Cheapest return flight
€649
Typical prices: €724-€1,067
United Airlines
Wed 18/4Sun 22/4
SAN - SNN • 2 stops
Cheapest one-way flight
€521
Typical prices: €441-€3,461
Multiple Airlines
Tue 18/12
SAN - SNN • 3 stops
Direct flights
Not available
There are currently no direct flights between San Diego and Shannon. You'll need to take a connecting flight to reach the destination.
Insights
Insights
When to travel
March
Cheapest • 50% price drop
July
Most popular
Good to know
+1
Good to know
+1
Top stopover airports
London Heathrow (LHR)
Cheapest • Avg €688 (return)
Newark (EWR)
Shortest trip • 14h 03m (one-way)
Insights
Insights
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We hope you enjoy your trip to Shannon!
Flight Deals
Booking Insights
Flight Deals

Cheap Flights from San Diego to Shannon (SAN-SNN)

 
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent return flight deals from San Diego to Shannon

Sun, 18 Apr - Thu, 22 Apr
United Airlines Logo
07:00 - 10:15SAN  San Diego-SNN Shannon
19h 15m2 stops Denver Intl Newark
United Airlines Logo
12:30 - 22:38SNN  Shannon-SAN San Diego
18h 08m1 stop Newark
€649United Airlines
14 hours ago
Mon, 19 Apr - Mon, 26 Apr
United Airlines Logo
11:20 - 10:15SAN  San Diego-SNN Shannon
14h 55m2 stops Denver Intl Newark
United Airlines Logo
12:30 - 22:38SNN  Shannon-SAN San Diego
18h 08m1 stop Newark
€690United Airlines
2 days ago
Mon, 19 Apr - Mon, 26 Apr
United Airlines Logo
07:10 - 10:15SAN  San Diego-SNN Shannon
19h 05m1 stop Newark
United Airlines Logo
12:30 - 22:28SNN  Shannon-SAN San Diego
17h 58m2 stops Newark Denver Intl
€694United Airlines
2 days ago
Sun, 18 Apr - Thu, 22 Apr
United Airlines Logo
07:10 - 10:15SAN  San Diego-SNN Shannon
19h 05m1 stop Newark
United Airlines Logo
12:30 - 22:38SNN  Shannon-SAN San Diego
18h 08m1 stop Newark
€710United Airlines
3+ days ago
Sun, 18 Apr - Thu, 22 Apr
United Airlines Logo
07:10 - 10:15SAN  San Diego-SNN Shannon
19h 05m1 stop Newark
United Airlines Logo
12:30 - 22:38SNN  Shannon-SAN San Diego
18h 08m1 stop Newark
€750United Airlines
14 hours ago
Mon, 1 Feb - Mon, 8 Feb
British Airways Logo
18:00 - 19:25SAN  San Diego-SNN Shannon
17h 25m1 stop London Heathrow
British Airways Logo
20:05 - 17:21SNN  Shannon-SAN San Diego
29h 16m2 stops London Heathrow Dallas/Fort Worth
€839British Airways
2 days ago
Mon, 1 Feb - Mon, 8 Feb
British Airways Logo
08:00 - 11:30SAN  San Diego-SNN Shannon
19h 30m2 stops Dallas/Fort Worth London Heathrow
British Airways Logo
20:05 - 17:21SNN  Shannon-SAN San Diego
29h 16m2 stops London Heathrow Dallas/Fort Worth
€842British Airways
2 days ago
Mon, 1 Feb - Mon, 8 Feb
British Airways Logo
18:00 - 16:45SAN  San Diego-SNN Shannon
14h 45m1 stop London Heathrow
British Airways Logo
20:05 - 16:10SNN  Shannon-SAN San Diego
28h 05m1 stop London Heathrow
€849British Airways
2 days ago
Mon, 11 Jan - Fri, 22 Jan
British Airways Logo
18:00 - 16:45SAN  San Diego-SNN Shannon
14h 45m1 stop London Heathrow
British Airways Logo
07:50 - 16:10SNN  Shannon-SAN San Diego
16h 20m1 stop London Heathrow
€883British Airways
3+ days ago
Mon, 11 Jan - Fri, 22 Jan
British Airways Logo
13:04 - 19:25SAN  San Diego-SNN Shannon
22h 21m2 stops Phoenix Sky Harbor Intl London Heathrow
British Airways Logo
07:50 - 16:10SNN  Shannon-SAN San Diego
16h 20m1 stop London Heathrow
€887British Airways
3+ days ago
Booking Insights

Price, demand, and travel trends for San Diego to Shannon flights

Use KAYAK data on prices, travel dates, airlines, and seasonal trends to compare options and book flights with more confidence.

How much is a return flight from San Diego to Shannon?

Return flights from San Diego to Shannon typically range from €724 to €1,067. The lowest price found in the past 5 days was €649 on United Airlines.

What's the cheapest day of the week to fly from San Diego to Shannon?

Based on deals KAYAK users found in the last 12 months, Friday is the cheapest day of the week to fly from San Diego to Shannon. It’s 50% cheaper than the average day, while Saturday is the most expensive, with prices 16% higher.

Find deals

Key details for San Diego to Shannon flights

Low season

January

Cheapest flight

€521
Beat the crowds with an average 90% drop in traveller numbers.
The most popular month to fly with an average 55% increase in traveller numbers.
One-way flight from San Diego to Shannon

When to book flights from San Diego to Shannon

Are your dates flexible? Find out the best times to travel from San Diego to Shannon based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated return price

Your San Diego to Shannon flight questions, answered

Find helpful answers about this route, including flight times, airports, airlines, and booking tips.

  • How long is a flight from San Diego to Shannon?

    A direct flight from San Diego to Shannon takes 00m, covering 13,291 km.

  • Do I need a passport to fly from San Diego to Shannon?

    Yes, a valid passport is required for this international route. Many destinations require at least six months of validity beyond your travel dates. Check your passport expiry well before booking.

  • How much should I expect to pay for a San Diego to Shannon flight?

    Return flights from San Diego to Shannon range from €724 to €1,067, with an average of €919 over the past 12 months. Anything below €724 counts as a good deal.

  • Have flight prices from San Diego to Shannon changed much recently?

    Yes. Based on fares seen in the past 5 days, return flight prices on this route showed a wide range, from about €649 to €2,464. That means the highest observed fare was about 4x higher than the lowest one.

  • How are flight prices from San Diego to Shannon looking right now?

    One-way fares from San Diego to Shannon are currently higher than usual. Average one-way flight prices are about €1,855, which is 139% above the typical average for this route.

  • Which car hire options are available at Shannon Airport (SNN)?

    Shannon Airport (SNN) hosts 5 major car hire companies, with daily rates starting from around €3 for economy cars. Top options include:

    • Budget
    • Sixt
    • Europcar
    • Easirent
    • Thrifty

  • Which airports can I use when flying from San Diego to Shannon?

    Flights from San Diego to Shannon usually depart from San Diego (SAN) and arrive at Shannon (SNN).

  • Which airports do connecting flights from San Diego to Shannon pass through?

    One-stop flights from San Diego to Shannon most commonly connect through:

    • New York John F Kennedy Intl (JFK) – 39% of one-stop connections
    • London Heathrow (LHR) – 39% of one-stop connections
    • Chicago O'Hare Intl (ORD) – 14% of one-stop connections
    • Boston Logan Intl (BOS) – 4% of one-stop connections

  • Can I save money by using flexible dates for flights from San Diego to Shannon?

    Yes. Flexible dates can save you up to 57% on flights from San Diego to Shannon. Friday is the cheapest departure day at €462 return on average, while Saturday is the most expensive at €1,067, a difference of €605.

    KAYAK's flexible dates feature shows options up to three days before and after your selected dates, making it easier to compare nearby fares.

  • How much time can I save by choosing a different stopover airport from San Diego to Shannon?

    Flying via Newark (EWR) gives the shortest average 1-stop total travel time of 14h 03m, compared to 14h 09m via Chicago O'Hare Intl (ORD) and 15h 15m via New York John F Kennedy Intl (JFK).

  • What is the time difference between San Diego and Shannon?

    Shannon is 8 hours ahead of San Diego (Irish Time vs Pacific Time). Plan for the time shift when scheduling connections or first-day activities.

Your guide to booking San Diego to Shannon flights

Get tips on when to book, when to fly, and what to know before your trip.
  • If your dates are flexible, aim for a Friday departure and avoid flying on Saturday. On this route, Friday flights average €462, about €605 less than Saturday fares (57% savings) based on the last 12 months.
  • If you can choose when to travel, plan your San Diego to Shannon trip for March. Fares historically average €462 return in that month – typically €605 less than the most expensive month, which is June (based on the last 12 months).
  • If you're arriving late at night and need somewhere to stay, check out these hotels close to Shannon Airport.

    • Park Inn by Radisson Shannon Airport
    • Treacys Oakwood Hotel, Shannon
    • Carrygerry Country House

More options for your flight from San Diego to Shannon

Complete your trip to Shannon with a hotel stay or car hire

Car hire in Shannon
Hotels in Shannon
Holidays in Shannon