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Shannon

$284+ Cheap flights from San Diego (SAN) to Shannon (SNN)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 8/5. Fares are subject to change and may not be available on all flights or dates of travel.
SAN — SNN
Jul 8 — Jul 151
Tue 7/8
Tue 7/15
1 adult, Economy
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Cheap flight deals from San Diego to Shannon

Discover tips and strategies to find the most affordable flight options for your journey from San Diego (SAN) to Shannon (SNN). 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 July 3, 2025.

Round-trip from

$635
(American Airlines)

Popular in

November

Cheapest in

February

Average price

$923
From San Diego to Shannon
Search Deals
Highest demand for flights based on searches. 19% potential increase in price ($218 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($29 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in July 2025
Search Deals

Find flight deals from San Diego to Shannon

Cheapest flights from San Diego to Shannon
Explore the most affordable flight options available from San Diego to Shannon. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 3, 2025.

This American Airlines deal was found by Cheapflights users on 7/3. 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.
Sun 8/177:50 pmSAN - SNN
1 stop16h 45mAmerican Airlines
Sun 8/249:15 pmSNN - SAN
1 stop25h 35mAmerican Airlines
Deal found 7/3$635
This United Airlines deal was found by Cheapflights users on 7/1. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/228:00 amSAN - SNN
2 stops18h 15mUnited Airlines
Tue 7/2912:30 pmSNN - SAN
2 stops16h 42mUnited Airlines
Deal found 7/1$666
This Delta deal was found by Cheapflights users on 7/1. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/2211:00 amSAN - SNN
2 stops16h 10mDelta
Fri 8/11:05 pmSNN - SAN
2 stops28h 18mDelta
Deal found 7/1$671
This Air France deal was found by Cheapflights users on 7/1. 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 France is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/241:05 pmSAN - SNN
1 stop14h 05mAir France
Fri 8/11:05 pmSNN - SAN
1 stop18h 37mAir France
Deal found 7/1$766
This KLM deal was found by Cheapflights users on 7/3. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/306:30 amSAN - SNN
1 stop20h 40mMultiple Airlines
Tue 9/91:05 pmSNN - SAN
1 stop18h 37mMultiple Airlines
Deal found 7/3$806
This Gurufare deal was found by Cheapflights users on 7/3. 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 Gurufare is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 7/128:30 pmSAN - SNN
1 stop25h 25mAer Lingus
Wed 7/302:35 pmSNN - SAN
1 stop36h 20mAer Lingus
Deal found 7/3$945
This Lufthansa deal was found by Cheapflights users on 7/1. 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 Lufthansa is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/245:50 pmSAN - SNN
2 stops32h 25mLufthansa
Tue 7/2912:30 pmSNN - SAN
2 stops19h 45mLufthansa
Deal found 7/1$1,006
This British Airways deal was found by Cheapflights users on 6/30. 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 British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/77:50 pmSAN - SNN
1 stop31h 30mBritish Airways
Wed 7/164:55 pmSNN - SAN
1 stop29h 55mBritish Airways
Deal found 6/30$5,969

Cheapflights Fare Finder

Customize your flight search to find flights from San Diego to Shannon 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 July 3, 2025.
Use the filters below to find and compare flights from San Diego to Shannon that are best for you.

Fly from

San Diego

Fly to

Shannon

Route

Depart

Return

Price

San DiegoShannon

SAN - SNN

SANSNN

San Diego

Sun 8/17

7:50 pm-8:35 pm

1 stop16h 45m

Shannon

Sun 8/24

9:15 pm-2:50 pm

1 stop25h 35m

$635

San DiegoShannon

SAN - SNN

SANSNN

San Diego

Tue 7/22

6:30 am-11:10 am

1 stop20h 40m

Shannon

Tue 7/29

1:05 pm-7:57 pm

1 stop14h 52m

$666

San DiegoShannon

SAN - SNN

SANSNN

San Diego

Tue 7/22

6:25 am-11:10 am

2 stops20h 45m

Shannon

Thu 7/31

1:05 pm-8:41 pm

1 stop15h 36m

$671

San DiegoShannon

SAN - SNN

SANSNN

San Diego

Thu 7/24

10:41 am-7:30 am

1 stop12h 49m

Shannon

Tue 7/29

12:30 pm-7:11 pm

1 stop14h 41m

$716

San DiegoShannon

SAN - SNN

SANSNN

San Diego

Thu 7/24

1:05 pm-11:10 am

1 stop14h 05m

Shannon

Fri 8/1

1:05 pm-11:42 pm

1 stop18h 37m

$766

San DiegoShannon

SAN - SNN

SANSNN

San Diego

Thu 7/24

5:50 pm-10:15 am

2 stops32h 25m

Shannon

Tue 7/29

12:30 pm-12:15 am

2 stops19h 45m

$1,006

San DiegoShannon

SAN - SNN

SANSNN

San Diego

Tue 8/5

7:04 pm-1:10 pm

3 stops34h 06m

$284

San DiegoShannon

SAN - SNN

SANSNN

San Diego

Tue 8/5

1:05 pm-11:10 am

1 stop14h 05m

$451

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/3

Best time to book a flight from San Diego to Shannon

Have a flexible travel schedule? Discover the best time to fly to Shannon from San Diego 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.

Cheapflights Insights

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

What is the cheapest month to book a flight from San Diego to Shannon, Clare?

Currently, February is the cheapest month in which you can book a flight from San Diego to Shannon, Clare (average of $533). Flying from San Diego to Shannon, Clare in June is currently the most expensive (average of $938). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from SAN to SNN?

Find hourly flight availability from San Diego to Shannon. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated July 3, 2025.

One of the essential ways to save on airfare from San Diego to Shannon, Clare is to remain as flexible as possible. Flights that are in the afternoon tend to be the most expensive. A flight at noon could potentially save you up to 5% on airfare.

Reviews of airlines servicing Shannon

Get insights into the airlines that provide service to Shannon. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Shannon. Reviews last updated July 3, 2025.
Read through reviews of airlines operating flights from San Diego to Shannon, such as Delta, Air France, and United Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,970 reviews

Entertainment

7.9

Overall

8.0

Comfort

7.9

Crew

8.5

Boarding

8.2

Food

7.3

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
Delta
8.0
Very good
7,970 reviews
Delta
8.0
Very good
7,970 reviews

Entertainment

7.9

Overall

8.0

Comfort

7.9

Crew

8.5

Boarding

8.2

Food

7.3

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
Air France
7.5
Good
1,473 reviews
Delta
8.0
Very good
7,970 reviews

Entertainment

7.9

Overall

8.0

Comfort

7.9

Crew

8.5

Boarding

8.2

Food

7.3

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
United Airlines
7.4
Good
8,845 reviews
Delta
8.0
Very good
7,970 reviews

Entertainment

7.9

Overall

8.0

Comfort

7.9

Crew

8.5

Boarding

8.2

Food

7.3

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
American Airlines
7.2
Good
10,000 reviews
Delta
8.0
Very good
7,970 reviews

Entertainment

7.9

Overall

8.0

Comfort

7.9

Crew

8.5

Boarding

8.2

Food

7.3

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
Air Canada
7.1
Good
9,678 reviews
Delta
8.0
Very good
7,970 reviews

Entertainment

7.9

Overall

8.0

Comfort

7.9

Crew

8.5

Boarding

8.2

Food

7.3

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Related info for your journey

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

  • What are the cheapest airlines flying from San Diego to Shannon, Clare round-trip?

    According to our current data, American Airlines ($635), Delta ($671), and United Airlines ($679) offers the cheapest pricing from San Diego to Shannon, Clare. American Airlines is 31% cheaper than the average price of flights available within the next 90 days to this destination.

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

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

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

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

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

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

  • What is the cheapest month to book a flight from San Diego to Shannon, Clare?

    Currently, February is the cheapest month in which you can book a flight from San Diego to Shannon, Clare (average of $533). Flying from San Diego to Shannon, Clare in June is currently the most expensive (average of $938). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Traveling to a place near San Diego?

Book flights to San Diego if you plan to visit one of these locations
Ennis

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Top 3 airlines flying from San Diego to Shannon

Discover the top 3 airlines that operate flights from San Diego to Shannon. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated July 3, 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$553Average$1,001FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$685Average$910FlexibilityNo cancel feeOn-time69%
British AirwaysCheapest$803Average$1,030FlexibilityNo cancel feeOn-time70%

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