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$813+ Cheap flights from Shannon (SNN) to San Diego (SAN)

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 1/26. Fares are subject to change and may not be available on all flights or dates of travel.
SNN — SAN
Jan 11 — Jan 181
Sun 1/11
Sun 1/18
1 adult, Economy
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Cheap flight deals from Shannon to San Diego

Cheapest flights from Shannon to San Diego
Explore the most affordable flight options available from Shannon to San Diego. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 12, 2025.

This American Airlines deal was found by Cheapflights users on 12/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/267:50 amSNN - SAN
2 stops20h 09mAmerican Airlines
Tue 12/303:03 pmSAN - SNN
2 stops36h 27mAmerican Airlines
Deal found 12/11$1,133
This lastminute.com deal was found by Cheapflights users on 12/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure lastminute.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/268:05 pmSNN - SAN
1 stop28h 05mMultiple Airlines
Tue 12/307:14 amSAN - SNN
2 stops20h 16mMultiple Airlines
Deal found 12/11$1,190
This lol.travel deal was found by Cheapflights users on 12/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure lol.travel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/277:50 amSNN - SAN
1 stop16h 20mMultiple Airlines
Wed 12/3110:42 amSAN - SNN
2 stops16h 48mMultiple Airlines
Deal found 12/11$1,256
This American Airlines deal was found by Cheapflights users on 12/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/277:50 amSNN - SAN
2 stops32h 43mAmerican Airlines
Wed 12/317:14 amSAN - SNN
2 stops20h 16mAmerican Airlines
Deal found 12/11$1,356
This lastminute.com deal was found by Cheapflights users on 12/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure lastminute.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/268:05 pmSNN - SAN
1 stop28h 05mAer Lingus
Tue 12/306:00 pmSAN - SNN
1 stop33h 30mAer Lingus
Deal found 12/11$1,461
This Air Canada deal was found by Cheapflights users on 12/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/277:50 amSNN - SAN
3 stops22h 42mAir Canada
Wed 12/317:00 amSAN - SNN
3 stops25h 45mAir Canada
Deal found 12/11$2,424

Find flight deals from Shannon to San Diego

Discover tips and strategies to find the most affordable flight options for your journey from Shannon (SNN) to San Diego (SAN). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated December 12, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$813
(Aer Lingus)
Provider with most accurate pricing for Shannon-San Diego flight deals.
Search Deals
Provider most trusted by Cheapflights users for Shannon-San Diego flights.
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From Shannon to San Diego
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Cheapflights Fare Finder

 
Customize your flight search to find flights from Shannon to San Diego that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated December 12, 2025.
Use the filters below to find and compare flights from Shannon to San Diego that are best for you.

Fly from

Shannon

Fly to

San Diego

Route

Depart

Return

Price

ShannonSan Diego

SNN - SAN

SNNSAN

Shannon

Mon 1/26

7:50 am-4:10 pm

1 stop16h 20m

San Diego

Mon 2/2

6:00 pm-4:45 pm

1 stop14h 45m

$813

ShannonSan Diego

SNN - SAN

SNNSAN

Shannon

Mon 2/9

8:05 pm-3:57 pm

2 stops27h 52m

San Diego

Mon 2/16

6:00 pm-7:25 pm

1 stop17h 25m

$833

ShannonSan Diego

SNN - SAN

SNNSAN

Shannon

Mon 1/26

7:50 am-10:26 pm

2 stops22h 36m

San Diego

Mon 2/2

6:00 pm-4:45 pm

1 stop14h 45m

$833

ShannonSan Diego

SNN - SAN

SNNSAN

Shannon

Wed 3/4

7:50 am-4:10 pm

1 stop16h 20m

San Diego

Sun 3/8

7:00 pm-4:45 pm

1 stop14h 45m

$982

ShannonSan Diego

SNN - SAN

SNNSAN

Shannon

Wed 2/4

7:50 am-8:36 pm

2 stops20h 46m

San Diego

Sun 2/8

6:00 pm-4:45 pm

1 stop14h 45m

$987

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/11

Compare providers for flights from Shannon to San Diego

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Shannon to San Diego in December.
ProviderPrice AccuracyTrust Score*
eDreamsPrice Accuracy3 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*1 star

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Shannon, Clare-San Diego flights, users find the pricing of eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Shannon, Clare-San Diego flight deals on Cheapflights vs. eDreams >95% of the time. Price accuracy is based on data collected from Shannon, Clare-San Diego flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Shannon, Clare-San Diego flights, Cheapflights users trust eDreams the most. eDreams has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Shannon, Clare-San Diego flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Shannon to San Diego

Have a flexible travel schedule? Discover the best time to fly to San Diego from Shannon with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Related info for your journey

Find useful and relevant information for your journey from Shannon to San Diego. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from Shannon, Clare to San Diego?

    For as low as $813, Aer Lingus can have you in San Diego from Shannon, Clare in 16h 20m. Airlines will cover a distance of 5132 mi. This flight may include one or multiple stops.

  • Can I find deals for flights from Shannon to San Diego that include hotel bookings?

    Yes. In addition to deals on Shannon to San Diego flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Shannon to San Diego?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Shannon to San Diego.

  • Can I find deals for business class flights from Shannon to San Diego?

    Yes. Cheapflights offers flight deals from Shannon to San Diego by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

See more FAQs

Traveling to a place near San Diego?

Book flights to San Diego if you plan to visit one of these locations
El Cajon
Chula Vista
Coronado
La Mesa
Poway
Lemon Grove
Julian
National City

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