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$743+ 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 5/26. Fares are subject to change and may not be available on all flights or dates of travel.
SNN — SAN
Mar 31 — Apr 71
Mon 3/31
Mon 4/7
1 adult, Economy
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Cheap 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 March 26, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$743
(Delta)
Provider with most accurate pricing for Shannon-San Diego flight deals.
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Provider most trusted by Cheapflights users for Shannon-San Diego flights.
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From Shannon to San Diego
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Find 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 March 26, 2025.

This Delta deal was found by Cheapflights users on 3/25. 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.
Mon 5/261:05 pmSNN - SAN
1 stop18h 48mDelta
Sat 5/319:59 pmSAN - SNN
1 stop29h 11mDelta
Deal found 3/25$743
This Mytrip deal was found by Cheapflights users on 3/25. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/19:15 pmSNN - SAN
3 stops32h 59mMultiple Airlines
Wed 5/72:30 pmSAN - SNN
2 stops17h 40mMultiple Airlines
Deal found 3/25$814
This United Airlines deal was found by Cheapflights users on 3/25. 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.
Thu 5/112:30 pmSNN - SAN
2 stops19h 29mUnited Airlines
Wed 5/78:10 amSAN - SNN
2 stops18h 05mUnited Airlines
Deal found 3/25$830
This American Airlines deal was found by Cheapflights users on 3/25. 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.
Wed 4/97:40 amSNN - SAN
2 stops18h 48mAmerican Airlines
Sun 4/134:30 pmSAN - SNN
2 stops15h 40mAmerican Airlines
Deal found 3/25$872

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 March 26, 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 5/26

1:05 pm-11:53 pm

1 stop18h 48m

San Diego

Sat 5/31

9:59 pm-11:10 am

1 stop29h 11m

$743

ShannonSan Diego

SNN - SAN

SNNSAN

Shannon

Thu 5/1

9:15 pm-10:14 pm

3 stops32h 59m

San Diego

Wed 5/7

2:30 pm-4:10 pm

2 stops17h 40m

$814

ShannonSan Diego

SNN - SAN

SNNSAN

Shannon

Thu 5/1

12:30 pm-11:59 pm

2 stops19h 29m

San Diego

Wed 5/7

8:10 am-10:15 am

2 stops18h 05m

$830

ShannonSan Diego

SNN - SAN

SNNSAN

Shannon

Wed 4/9

7:40 am-6:28 pm

2 stops18h 48m

San Diego

Sun 4/13

4:30 pm-4:10 pm

2 stops15h 40m

$872

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/25

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 March.
ProviderPrice AccuracyTrust Score*
eDreamsPrice Accuracy3 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars

*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 FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Shannon, Clare-San Diego flight deals on Cheapflights vs. FlightHub >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 FlightHub the most. FlightHub 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.

Cheapflights Insights

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

Rainfall in San Diego by month

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

In terms of precipitation, rainfall in San Diego ranges from 0.0 - 2.3 inches per month. February is typically the wettest month, when rainfall can reach 2.3 in. July is typically the driest time to visit San Diego when rainfall is around 0.0 in.

Temperature in San Diego by month

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

If weather is an important factor for your trip to San Diego, use this chart to help with planning. For those seeking warmer temperatures, August is the ideal time of year to visit, when temperatures reach an average of 71.6 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 57.2 F).

Reviews of airlines servicing San Diego

Get insights into the airlines that provide service to San Diego. 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 San Diego. Reviews last updated March 26, 2025.
Delta
8.0
Very good
7,891 reviews

Comfort

8.0

Food

7.3

Overall

8.0

Entertainment

7.9

Boarding

8.2

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
Delta
8.0
Very good
7,891 reviews
Delta
8.0
Very good
7,891 reviews

Comfort

8.0

Food

7.3

Overall

8.0

Entertainment

7.9

Boarding

8.2

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
United Airlines
7.4
Good
8,608 reviews
Delta
8.0
Very good
7,891 reviews

Comfort

8.0

Food

7.3

Overall

8.0

Entertainment

7.9

Boarding

8.2

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
American Airlines
7.2
Good
10,000 reviews
Delta
8.0
Very good
7,891 reviews

Comfort

8.0

Food

7.3

Overall

8.0

Entertainment

7.9

Boarding

8.2

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

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.

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

    Delta, at $743, was found to be the cheapest airline from Shannon, Clare to San Diego.Alternate airlines to your destination round-trip include United Airlines and American Airlines.

  • 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.

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

    Currently, August is the cheapest month in which you can book a flight from Shannon, Clare to San Diego (average of $286). Flying from Shannon, Clare to San Diego in March is currently the most expensive (average of $366). 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 Shannon?

Book flights to Shannon if you plan to visit one of these locations
El Cajon
Chula Vista
Lemon Grove
National City
Imperial Beach
La Mesa
Alpine
Poway
Santee
Coronado
Borrego Springs

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