SAN - SNN

$463 Find Cheap Flights from San Diego to Shannon - Compare and Save

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from San Diego to Shannon departing on 8/29. 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, 0 bags

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

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from San Diego to Shannon, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from San Diego to Shannon, as well as popular online travel agencies
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Everything you should know

Cheapest round-trip
$806
United Airlines
Mon 8/3Wed 8/19
SAN - SNN • 2 stops
Cheapest one-way
$463
United Airlines
Sat 8/29
SAN - SNN • 3 stops
Top airlines
Cheapest • from $806 (round-trip)
Best reviews • 7.4 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
Nonstop flights
Not available
There are currently no direct flights between San Diego and Shannon. You'll need at least 1 connection.
Insights
Insights
Insights
Insights
Top layover airports
Cheapest • Avg $783 (round-trip)
Shortest trip • 12h 49m (one-way)
Insights
Insights
Insights
Insights
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KAYAK searches 100s of sites at once to find you the best travel deals.
We hope you love your trip to Shannon!
Flight Deals
Booking Insights
Flight Deals

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

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from San Diego to Shannon 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 San Diego to Shannon

Mon, Aug 3 - Wed, Aug 19
United Airlines Logo
6:20 am - 7:30 am
SAN
-
SNN
17h 10m
2 stops
United Airlines Logo
9:30 am - 5:26 pm
SNN
-
SAN
15h 56m
2 stops
$806United Airlines
Wed, Jul 15 - Tue, Jul 21
Delta Logo
10:54 am - 11:10 am
SAN
-
SNN
16h 16m
2 stops
Delta Logo
1:05 pm - 8:34 pm
SNN
-
SAN
15h 29m
1 stop
$852Delta
Wed, Jul 15 - Tue, Jul 21
Air France Logo
7:29 am - 11:10 am
SAN
-
SNN
19h 41m
1 stop
Air France Logo
1:05 pm - 11:43 pm
SNN
-
SAN
18h 38m
1 stop
$963Air France
Mon, Jul 6 - Thu, Jul 16
United Airlines Logo
6:40 am - 10:15 am
SAN
-
SNN
19h 35m
1 stop
United Airlines Logo
9:30 am - 6:32 pm
SNN
-
SAN
17h 02m
1 stop
$1,054United Airlines
Mon, Jul 6 - Thu, Jul 16
United Airlines Logo
6:20 am - 7:30 am
SAN
-
SNN
17h 10m
2 stops
United Airlines Logo
9:30 am - 5:20 pm
SNN
-
SAN
15h 50m
2 stops
$1,059United Airlines
Fri, Aug 21 - Tue, Aug 25
British Airways Logo
4:45 pm - 3:50 pm
SAN
-
SNN
15h 05m
1 stop
British Airways Logo
7:30 am - 5:50 pm
SNN
-
SAN
18h 20m
1 stop
$1,068British Airways
Fri, Aug 21 - Tue, Aug 25
British Airways Logo
7:24 am - 3:50 pm
SAN
-
SNN
24h 26m
2 stops
British Airways Logo
9:15 pm - 2:55 pm
SNN
-
SAN
25h 40m
1 stop
$1,072British Airways
Fri, Aug 21 - Tue, Aug 25
United Airlines Logo
8:45 am - 10:15 am
SAN
-
SNN
17h 30m
3 stops
United Airlines Logo
9:30 am - 8:45 pm
SNN
-
SAN
19h 15m
2 stops
$1,077United Airlines
Fri, Aug 21 - Tue, Aug 25
United Airlines Logo
8:00 am - 10:15 am
SAN
-
SNN
18h 15m
2 stops
United Airlines Logo
9:30 am - 7:55 pm
SNN
-
SAN
18h 25m
2 stops
$1,079United Airlines
Fri, Aug 21 - Tue, Aug 25
United Airlines Logo
8:45 am - 10:15 am
SAN
-
SNN
17h 30m
3 stops
United Airlines Logo
9:30 am - 8:45 pm
SNN
-
SAN
19h 15m
2 stops
$1,081United Airlines
Booking Insights

KAYAK's insights & trends for San Diego to Shannon flights

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

Which airlines provide the cheapest flights from San Diego to Shannon?

The cheapest round-trip price for the route for each airline clicked by KAYAK users in the last 5 days.

In the past 5 days, the cheapest round-trip tickets from San Diego to Shannon were found on United Airlines ($806) and Delta ($852).

Good to know

Cheapest flight$463
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 round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking flights from San Diego to Shannon

  • What is the cheapest flight from San Diego to Shannon?

    In the last 5 days, the lowest price for a flight from San Diego to Shannon was $463 for a one-way ticket and $806 for a round-trip.

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

    Yes, you’ll need a passport to travel to Shannon from San Diego.

  • Which airports will I be using when flying from San Diego to Shannon?

    When flying out of San Diego you will be using San Diego. You will be landing at Shannon, also known as Shannon.

  • Which aircraft models fly most regularly from San Diego to Shannon?

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from San Diego to Shannon?

    Star Alliance is the only airline alliance operating flights between San Diego and Shannon.

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

    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 from San Diego to Shannon.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Shannon from 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 from San Diego to Shannon?

    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 Shannon with an airline and back to San Diego with another airline. Booking your flights between San Diego and SNN can sometimes prove cheaper using this method.

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

    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 Shannon from San Diego up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top airline flying from San Diego to Shannon

 
See real verified KAYAK customer reviews for airlines flying from San Diego to Shannon. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from San Diego to Shannon? 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 9860 reviews
7.3Comfort
7.1Entertainment
7.7Boarding
6.7Food
8.1Crew
Airline reviews

I was promised by United Airline (operated by ANA) that I will be seated together with my kids as I am the only adult flying with two minors. We did not get seats together in our 11 hours flight from LA to Tokyo. When asked at the gate, ANA representative said United Airline should have informed them that there is a parent flying with two minors. He said they can’t do anything in the system as the flight is full. He ask me to ask passengers next to me and the kids if they are willing to change seats. This is ridiculous! However, I went in the flight and asked other passages but no one willing to change seats. 11 hours and we were seating separately. I was very disappointed with this. It made things super inconvenient for me.

2.0 MediocreAnonymous, Jun 2026
LAX - NRT
Read more United Airlines reviews

I was promised by United Airline (operated by ANA) that I will be seated together with my kids as I am the only adult flying with two minors. We did not get seats together in our 11 hours flight from LA to Tokyo. When asked at the gate, ANA representative said United Airline should have informed them that there is a parent flying with two minors. He said they can’t do anything in the system as the flight is full. He ask me to ask passengers next to me and the kids if they are willing to change seats. This is ridiculous! However, I went in the flight and asked other passages but no one willing to change seats. 11 hours and we were seating separately. I was very disappointed with this. It made things super inconvenient for me.

Service was professional and quick. Premium economy seat was comfortable given the class

It was perfect! United Airlines staff was extremely caring, super friendly and professional

The staff was extremely helpful and friendly at all times! They went above and beyond to get us into an earlier flight in San Diego to make our connection in SFO possible, because our original flight did actually not make it! I did so much appreciate the UA team and how they made this possible. We also didn’t have seats together on the long flight to Singapore, but they found us seats together last moment with no additional cost! Nobody sat next to us, so that we were able to sleep! Thanks to UA for improving their service and Underpricer for booking this trip! Please be careful: 1,5 hrs for transfer in San Francisco might not be enough time in the future

Over 2.5 hour maintenance delay on first morning flight with no acknowledgement, compensation or even gesture of good will. Aircraft had overnighted at airport so issue should have been addressed prior to boarding. Over 3.5 hours before first slow and deliberate beverage service.

United has maintenance issues and can then never recover. No operations ability and simple issues always turn into multiple hours long cascading delays. Worst airline on earth.

I paid for a confirmed upgraded aisle seat and was moved to a center seat in the back of the plane at the last minute.

Horrifying Almost 2 million miles. Bring your own food and drink. One coffee or drink every three hours. Have to order meals on app more than 24 hours ahead Tiny and dirty bathrooms

Flight was delayed but more than 90 minutes. This caused me to miss my available windows for pick-up by a friend. I had to pay $125 for an uber back home from the airport which was an added expense that I had not budgeted for my trip. Staff was friendly.

Seat pitch is horrible especially on the 15 hour flight. Gate crew at SFO was Outstanding. The flight crew was also great.

Everything you need to know for your flight from San Diego to Shannon

Information on your arrival and departure airports