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Shannon

$334+ 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 9/22. Fares are subject to change and may not be available on all flights or dates of travel.
SAN — SNN
jun. 17 — jun. 241
mar. 6/17
mar. 6/24
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 junio 12, 2025.

Round-trip from

$664
(American Airlines)

One-way from

$334
(Kiwi.com)

Popular in

November

Cheapest in

February

Average price

$1,038
From San Diego to Shannon
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One-way flight from San Diego to Shannon
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Highest demand for flights based on searches. 18% potential increase in price ($216 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($28 potential savings vs. average RT price).
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Average for round-trip flights in June 2025
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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 junio 12, 2025.

This American Airlines deal was found by Cheapflights users on 6/11. 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.
lun. 9/84:40 pmSAN - SNN
1 stop15h 30mAmerican Airlines
mar. 9/169:15 pmSNN - SAN
1 stop25h 35mAmerican Airlines
Deal found 6/11$664
This KLM deal was found by Cheapflights users on 6/10. 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.
mar. 7/226:30 amSAN - SNN
1 stop20h 40mMultiple Airlines
jue. 7/311:05 pmSNN - SAN
1 stop15h 36mMultiple Airlines
Deal found 6/10$665
This United Airlines deal was found by Cheapflights users on 6/10. 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.
mié. 7/2310:41 amSAN - SNN
1 stop12h 49mUnited Airlines
jue. 7/319:30 amSNN - SAN
1 stop32h 04mUnited Airlines
Deal found 6/10$674
This Air France deal was found by Cheapflights users on 6/10. 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.
mar. 7/226:30 amSAN - SNN
1 stop20h 40mAir France
vie. 8/11:05 pmSNN - SAN
1 stop18h 37mAir France
Deal found 6/10$765
This Delta deal was found by Cheapflights users on 6/11. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 7/39:55 pmSAN - SNN
1 stop29h 15mDelta
dom. 7/61:05 pmSNN - SAN
1 stop18h 36mDelta
Deal found 6/11$959
This Ovago deal was found by Cheapflights users on 6/9. 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 Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 6/233:27 pmSAN - SNN
2 stops16h 43mBritish Airways
lun. 6/309:15 pmSNN - SAN
2 stops26h 24mBritish Airways
Deal found 6/9$1,076

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 junio 12, 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

lun. 9/8

4:40 pm-4:10 pm

1 stop15h 30m

Shannon

mar. 9/16

9:15 pm-2:50 pm

1 stop25h 35m

$664

San DiegoShannon

SAN - SNN

SANSNN

San Diego

mar. 7/22

6:30 am-11:10 am

1 stop20h 40m

Shannon

jue. 7/31

1:05 pm-8:41 pm

1 stop15h 36m

$665

San DiegoShannon

SAN - SNN

SANSNN

San Diego

mié. 7/23

10:41 am-7:30 am

1 stop12h 49m

Shannon

jue. 7/31

9:30 am-9:34 am

1 stop32h 04m

$674

San DiegoShannon

SAN - SNN

SANSNN

San Diego

mar. 7/22

6:30 am-11:10 am

1 stop20h 40m

Shannon

vie. 8/1

1:05 pm-11:42 pm

1 stop18h 37m

$765

San DiegoShannon

SAN - SNN

SANSNN

San Diego

jue. 7/3

9:55 pm-11:10 am

1 stop29h 15m

Shannon

dom. 7/6

1:05 pm-11:41 pm

1 stop18h 36m

$959

San DiegoShannon

SAN - SNN

SANSNN

San Diego

lun. 6/23

3:27 pm-4:10 pm

2 stops16h 43m

Shannon

lun. 6/30

9:15 pm-3:39 pm

2 stops26h 24m

$1,076

San DiegoShannon

SAN - SNN

SANSNN

San Diego

lun. 9/22

3:10 pm-8:20 pm

3 stops45h 10m

$334

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/11

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 $959). 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 junio 12, 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.

Rainfall in Shannon by month

Plan your trip to Shannon by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Shannon, Clare ranges from 2.3 - 4.1 inches per month. October is typically the wettest month, when rainfall can reach 4.1 in. April is typically the driest time to visit Shannon, Clare when rainfall is around 2.3 in.

Temperature in Shannon by month

Plan your trip to Shannon by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Shannon, Clare, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 60.8 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 42.8 F).

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 junio 12, 2025.
Delta
8.0
Very good
7,946 reviews

Boarding

8.2

Comfort

7.9

Entertainment

7.9

Overall

8.0

Food

7.3

Crew

8.5

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
7,946 reviews
Delta
8.0
Very good
7,946 reviews

Boarding

8.2

Comfort

7.9

Entertainment

7.9

Overall

8.0

Food

7.3

Crew

8.5

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
1,463 reviews
Delta
8.0
Very good
7,946 reviews

Boarding

8.2

Comfort

7.9

Entertainment

7.9

Overall

8.0

Food

7.3

Crew

8.5

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
8,790 reviews
Delta
8.0
Very good
7,946 reviews

Boarding

8.2

Comfort

7.9

Entertainment

7.9

Overall

8.0

Food

7.3

Crew

8.5

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
7,946 reviews

Boarding

8.2

Comfort

7.9

Entertainment

7.9

Overall

8.0

Food

7.3

Crew

8.5

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.
British Airways
6.6
Okay
7,008 reviews
Delta
8.0
Very good
7,946 reviews

Boarding

8.2

Comfort

7.9

Entertainment

7.9

Overall

8.0

Food

7.3

Crew

8.5

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 ($664), United Airlines ($674), and Air France ($765) offers the cheapest pricing from San Diego to Shannon, Clare. American Airlines is 28% 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 $959). 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
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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 junio 12, 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$539Average$1,001FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$685Average$940FlexibilityNo cancel feeOn-time69%
British AirwaysCheapest$803Average$1,030FlexibilityNo cancel feeOn-time70%

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