SAN - SNN

$334 Find Cheap Flights from San Diego to Shannon

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 9/22. 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 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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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, Sep 8 - Tue, Sep 16
American Airlines Logo
4:40 pm - 4:10 pmSAN-SNN
15h 30m1 stop
American Airlines Logo
9:15 pm - 2:50 pmSNN-SAN
25h 35m1 stop
$664American Airlines
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Tue, Jul 22 - Thu, Jul 31
 Logo
6:30 am - 11:10 amSAN-SNN
20h 40m1 stop
 Logo
1:05 pm - 8:41 pmSNN-SAN
15h 36m1 stop
Wed, Jul 23 - Thu, Jul 31
United Airlines Logo
10:41 am - 7:30 amSAN-SNN
12h 49m1 stop
United Airlines Logo
9:30 am - 9:34 amSNN-SAN
32h 04m1 stop
$674United Airlines
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Tue, Jul 22 - Mon, Aug 4
United Airlines Logo
8:00 am - 10:15 amSAN-SNN
18h 15m2 stops
United Airlines Logo
12:30 pm - 9:12 pmSNN-SAN
16h 42m2 stops
$725United Airlines
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Tue, Jul 22 - Fri, Aug 1
Air France Logo
6:30 am - 11:10 amSAN-SNN
20h 40m1 stop
Air France Logo
1:05 pm - 11:42 pmSNN-SAN
18h 37m1 stop
$765Air France
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Tue, Jul 22 - Fri, Aug 1
Air France Logo
6:25 am - 11:10 amSAN-SNN
20h 45m2 stops
Air France Logo
1:05 pm - 11:42 pmSNN-SAN
18h 37m1 stop
$770Air France
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Thu, Jul 3 - Sun, Jul 6
Delta Logo
9:55 pm - 11:10 amSAN-SNN
29h 15m1 stop
Delta Logo
1:05 pm - 11:41 pmSNN-SAN
18h 36m1 stop
$959Delta
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Fri, Jul 4 - Sun, Jul 6
Delta Logo
8:00 am - 11:10 amSAN-SNN
19h 10m2 stops
Delta Logo
1:05 pm - 11:29 pmSNN-SAN
18h 24m2 stops
$1,045Delta
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Mon, Jun 23 - Mon, Jun 30
British Airways Logo
3:27 pm - 4:10 pmSAN-SNN
16h 43m2 stops
British Airways Logo
9:15 pm - 3:39 pmSNN-SAN
26h 24m2 stops
$1,076British Airways
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Wed, Jul 23 - Sat, Aug 2
British Airways Logo
2:27 pm - 4:10 pmSAN-SNN
17h 43m2 stops
British Airways Logo
7:40 am - 2:50 pmSNN-SAN
15h 10m1 stop
$1,094British Airways
Find Deal
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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.

What is the cheapest month to fly from San Diego to Shannon?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from San Diego to Shannon, 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 from San Diego to Shannon is February, where tickets cost $598 (return) on average. On the other hand, the most expensive months are November and December, where the average cost of round-trip tickets is $1,238 and $1,137 respectively.

Good to know

Low seasonJanuary
High seasonSeptember
Cheapest flight$334
Best time to beat the crowds with an average 9% drop in price.
Most popular time to fly and prices are also 3% lower on average.
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 3 days, the lowest price for a flight from San Diego to Shannon was $334 for a one-way ticket and $664 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?

    oneworld, Star Alliance, and SkyTeam are the airline alliances operating flights between San Diego and Shannon, with SkyTeam being the most commonly used for this route.

  • Which is the best airline for flights from San Diego to Shannon, United Airlines or American Airlines?

    The two airlines most popular with KAYAK users for flights from San Diego to Shannon are United Airlines and American Airlines. With an average price for the route of $940 and an overall rating of 7.4, United Airlines is the most popular choice. American Airlines is also a great choice for the route, with an average price of $1,001 and an overall rating of 7.2.

  • 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.

Top 3 airlines serving 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 8790 reviews
6.6Food
7.7Boarding
7.3Comfort
7.0Entertainment
8.1Crew
Airline reviews

it was so bad. I tried to board my flight from vancouver to saskatoon. And to my surprise they did not board me cause the flight was changed and no email was send to me. and on my boarding pass which i got from seattle says different flight. I did not knew anyone from Vancouver, air canada crew was rude, i asked for today flight but they were rude and i had early morning dental appointment in saskatoon. I was so much in pain and my whole day is wasted today. and i suffered alot. They did provide me hotel but they did not provide me any food. I am really really disappointed first time had so bad experience with air canada. I may think twice to book it again. If i can get any reply or any composition that would be great. Thanks

2.0 MediocreAnonymous, Jun 2025LAX - SEA
Read more United Airlines reviews

it was so bad. I tried to board my flight from vancouver to saskatoon. And to my surprise they did not board me cause the flight was changed and no email was send to me. and on my boarding pass which i got from seattle says different flight. I did not knew anyone from Vancouver, air canada crew was rude, i asked for today flight but they were rude and i had early morning dental appointment in saskatoon. I was so much in pain and my whole day is wasted today. and i suffered alot. They did provide me hotel but they did not provide me any food. I am really really disappointed first time had so bad experience with air canada. I may think twice to book it again. If i can get any reply or any composition that would be great. Thanks

Very comfortable (upgraded to business class). The audio on my screen didn’t work, but I managed to play the audio through my phone while watching the screen.

The food was the worst I’ve had on any flight I’ve ever been on.

I was supposed to be on business class at first class from Denver back to Miami due to weather changes. I missed my connection and it’s put on a flight to Fort Lauderdale. Instead of honoring my business class/1st class ticket, they put me in coach, but there were two first class seats open. I think it’s absolutely disgusting that I paid for first class $1300 ticket and they put me in economy and they had to open seats available and I have still not been refunded the difference. I ended up having to eat a snack box instead of the meal I was supposed to get and did not get home till 2 AM so I think that’s a little pathetic that I had to live off crackers for dinner And my poor dog ate some cheese and salami. Oh yes, apparently when they switched me to the new flight they forgot to mention I had a service dog

Flight was late as pilot crew had to land at different airport in their previous flight. Passengers boarded and had to wait for pilots inside plane. Series of incomplete and unnecessary announcements by an annoying voice, rather than complete, informative announcements.

Breakfast was not loaded at SFO due to catering company change. Seems like a major airline at a major hub would have thought of something else or warned passengers to pick up food before boarding a 3 hour flight.

Boarding seemed to be organized bedlam. For what ever reason, preboarding took longer than 20 minutes. Made the plane 20 minutes late taking off. Luckily we arrived on time. Flight crew seemed very friendly. Only slight turbulence.

They hired a new catering company the same day of my flight. They botched the job by not delivering the right carts and after THREE HOURS waiting, the flight crew timed out (flight was 19 hours long and FAA rules state crew can’t work more than 14 hours long). So they CANCELED OUR FLIGHT!! Worst experience ever. Avoid UAL at all costs.

The personnel were professional and friendly. The Boeing 737 Max 9 is too claustrophobic and was very warm at both airport gates, and still warm in the air.

While the staff was pleasant and helpful, the following observations are for your awareness. There was some delay on the tarmac on take off and landing. The paid lunch/food offerings were limited. Entertainment was only available on WiFi at a cost.

Flight was full, and would have preferred an aisle seat, but due to getting a late ticket ,the seat I had was adequate. The flight crew were very help full and hard working. Food and drink were excellent for the 11hr flight. Overall I was pleased with flight, and would recommend British Airways again.

Eventless. It was a good flight and good crew. Can’t complaint.

Very helpful ground crew after an earlier flight delay and being rebooked on a different flight.

British Airways staff are very polite and willing to help.

The plane was late and then sat on the runway for almost 45 minutes before taking off.

We kept being told that the flight was full and that all overhead compartments were full and therefore had to check in our hand luggage. We were some of the last people to board and noticed that there was still sufficient space in the overhead compartments. We were obliged to check in hand luggage when there was space and so had to wait at luggage retrieval which took a while to then noticed damage to our luggage - not a great experience!

Worst seats I’ve ever had !!! The seats were very narrow and uncomfortable and misaligned with the seats in front of mine leading to bottom of the seat in front of mine pressing on my legs for 15.5 hours !

This was an overnight flight. There was no meal service in first class, just a simple snack basket was offered along with beverages. There should have been some type of continental breakfast prior to arrival in PHL. As an Executive Platinum American Airlines Advantage member, I received no name recognition from the first class flight attendant. When disembarking at PHL, the flight attendants were more interested in their cell phones than saying "thank you" to the passengers as they disembarked.

The flight was quick and to the point. The crew just did their job w/o excessive talking and everything was just perfect.

Awkward carry on process. Forced to check all carry on. No overhead space of worthiness. Left delayed, but made up the time. Crew was amicable.

The payment system was not working so was unable to connect wifi the entire flight

Dreadfully long wait for bags at Dublin coming off an already late flight.

The delay was not communicated via text and the person who helped with check in also didn’t inform me about the delay. I ended up missing my connection and it was a waste of 5 hours. The crew didn’t mention there would be someone at the gate informing of if I would be rebooked and there was no signage. Overall a very poor experience. The British Airways app was also very buggy, and didn’t work. I will avoid flying with British Airways when possible.

Cancelled flight minutes before boarding. Rescheduled flight was two days later

The flight attendants were EXTREMELY personable and appreciated the service, lights going off after dinner (probably the norm, but I haven’t flown evening overnight flights in a while). Thank you!

Business class seats were very dated on my plane. Very little storage, charging ports were not easily accessible, tv screen kept flopping away. Vegetarian food was disappointing: hardly any protein and severely under-seasoned. Crew was lovely.

The food was pathetic. There wasn't much leg room and recline space for such a long flight. No tea/ coffee for a 2-3 hour connecting flight without purchasing! Really!?

Flight was delayed and there was boarding pass and flight information errors resulting in confusion and stress

I was charged fees for check in bags at the airport by British Airways. It was supposed to be no charge but Kayak messed up my booking apparently and I had to pay for check in bags. I paid $175.

Aer Lingus was the actual airline so they handled everything professionally.

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

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