SAN - SNN

$302 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 9/17. 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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Flights 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

Sat, Aug 23 - Fri, Sep 5
United Airlines Logo
10:41 am - 7:30 amSAN-SNN
12h 49m1 stop
United Airlines Logo
9:45 am - 3:50 pmSNN-SAN
14h 05m1 stop
$716United Airlines
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Fri, Aug 22 - Fri, Sep 5
United Airlines Logo
9:45 pm - 7:30 amSAN-SNN
25h 45m2 stops
United Airlines Logo
9:45 am - 3:50 pmSNN-SAN
14h 05m1 stop
$720United Airlines
Find Deal
Fri, Aug 22 - Fri, Sep 5
United Airlines Logo
6:40 am - 7:30 amSAN-SNN
16h 50m1 stop
United Airlines Logo
9:45 am - 3:50 pmSNN-SAN
14h 05m1 stop
$760United Airlines
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Sat, Sep 13 - Sat, Sep 20
American Airlines Logo
4:40 pm - 4:05 pmSAN-SNN
15h 25m1 stop
American Airlines Logo
7:40 am - 6:00 pmSNN-SAN
18h 20m1 stop
$773American Airlines
Find Deal
Sat, Sep 13 - Sat, Sep 20
United Airlines Logo
10:54 am - 10:15 amSAN-SNN
15h 21m2 stops
United Airlines Logo
9:30 am - 3:50 pmSNN-SAN
14h 20m1 stop
$776United Airlines
Find Deal
Fri, Sep 12 - Sat, Sep 20
United Airlines Logo
8:37 pm - 7:30 amSAN-SNN
26h 53m2 stops
United Airlines Logo
9:30 am - 3:50 pmSNN-SAN
14h 20m1 stop
$780United Airlines
Find Deal
Fri, Sep 12 - Sat, Sep 20
United Airlines Logo
8:37 pm - 7:30 amSAN-SNN
26h 53m2 stops
United Airlines Logo
9:30 am - 7:42 pmSNN-SAN
18h 12m2 stops
$781United Airlines
Find Deal
Fri, Sep 12 - Sat, Sep 20
American Airlines Logo
4:40 pm - 3:50 pmSAN-SNN
15h 10m1 stop
American Airlines Logo
7:40 am - 6:00 pmSNN-SAN
18h 20m1 stop
$849American Airlines
Find Deal
Sat, Sep 13 - Sat, Sep 20
 Logo
8:10 am - 11:20 amSAN-SNN
19h 10m2 stops
 Logo
5:30 pm - 7:35 pmSNN-SAN
34h 05m3 stops
Fri, Sep 12 - Sat, Sep 20
American Airlines Logo
4:40 pm - 3:50 pmSAN-SNN
15h 10m1 stop
American Airlines Logo
7:40 am - 2:50 pmSNN-SAN
15h 10m1 stop
$898American Airlines
Find Deal
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.

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 $656 (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
Cheapest flight$302
Best time to beat the crowds with an average 9% drop in price.
Most popular time to fly and prices are also 9% 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 $302 for a one-way ticket and $716 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, SkyTeam, and oneworld are the airline alliances operating flights between San Diego and Shannon, with oneworld 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 $902 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 $777 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.

Reviews of the top airlines 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 8896 reviews
7.3Comfort
7.7Boarding
8.1Crew
7.1Entertainment
6.6Food
Airline reviews

I learned that seating towards the end of plane that a line forms for the restroom and people use your chair as a hand railing, bumping your seat consistently. I was seated in the aisle. I think that next time if I am towards the back row I would want to sit in the middle or window seat.

6.0 GoodLeilani, Jul 2025SFO - KOA
Read more United Airlines reviews

I learned that seating towards the end of plane that a line forms for the restroom and people use your chair as a hand railing, bumping your seat consistently. I was seated in the aisle. I think that next time if I am towards the back row I would want to sit in the middle or window seat.

The best airline I have ever travel , really good customer service, attention and service !!

United sent me a mileage plus number last year but that number is invalid so I can’t use it to check into flights or collect mileage. There is human to speak about the problem, only computers who keep asking me if I am using the correct email. It’s so frustrating and I cannot resolve it.

Not a great experience. We paid for the upgrade for premium economy seats and seated ourselves in very comfortable seats. Someone came along with the same seat on their boarding pass. The aircraft had been changed and as a result we were booted out and sent further back to small uncomfortable seats. After complaining we were moved to emergency row seats, which gave us more leg room but the seats don’t recline. For people in our 70’s we found having to sit upright from California to NJ very uncomfortable. Not sure why they chose to move senior citizens instead of the two people that were allowed to take the more comfortable seats. Not happy.

Everything was great. Only thing that could’ve made it better was buy on board options for hot food, but the snacks were decent. The flight attendants were great. I had no complaints. I was able to make it to my destination safely

Boarded plane and then delayed 1.5 hours while on the plane

Horrific. They missed my connecting flight to San Diego. I didn’t get there until Monday at 9am when I had a mandatory court settlement conference scheduled at 6am since we had parties on the east coast. This caused many issues. All because United apparently forgot to hold the doors open until my flight landed that only had a 10 minute delay. This was the last flight to Southern California. So I couldn’t even rent a car to finish the trip. United cannot be trusted when traveling on specific days and times since weather didn’t have anything to do with the delays.

Really good 😊 the woman at the gate entrance was a little rude checking in our carry-on but i dont think she worked for the airline, she worked for the airport at sacramento, other than that amazing.

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.

Our flight was 1.5 hours delayed. There was no weather for the inbound flight, so I don't understand why. This meant a VERY late arrival and only a quick nap before my morning flight.

Delayed flight, so I switched fights to SFO to Phoenix , Phoenix to DSM. Excellent service through American Airlines

AA re-routed flight from HNL to LAX due to delay. My group of 3 with reserved seats in row 9 was broken up, with one assigned to a middle seat, another in the last row of the plane. Not happy. No explanation to the delay. No apologies. No compensation. Would have been nice to be offered an Admiral Club admission or a voucher for the extra 3 hours of layover in LAX. Could not hear the boarding gate announcements in LAX. Adjacent gate was boarding at the same time. Loud speakers were competing against each other. Barely made my boarding group.

Almost a 6 hour flight and the only food option is a cheese plate… and chips. Also how is it there are no options for texting on American. I’ll be going back to delta and united.

Bad food, small seats that didn’t recline. I thought I was buying a quantas ticket so I feel like I got scammed

The chair cushions may need an upgrade. I have been noticing they are so worn out, thin so you’d sit in a dip 😄. Other than that, all was an enjoyable trip. Thanks AA!

Cramped seats. FAA should make airlines have more legroom, for even short people complain

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.

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

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