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$412+ Cheap flights from Shannon (SNN) to San Diego (SAN)

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 4/19. Fares are subject to change and may not be available on all flights or dates of travel.
SNN — SAN
Feb 26 — Mar 51
Thu 2/26
Thu 3/5
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 January 27, 2026.

This TravelUp deal was found by Cheapflights users on 1/27. 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 TravelUp is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 2/117:50 am
SNN
-
SAN
2 stops23h 00m
Multiple Airlines
Sun 2/152:18 pm
SAN
-
SNN
2 stops18h 27m
Multiple Airlines
Deal found 1/27$929
This British Airways deal was found by Cheapflights users on 1/26. 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 2/98:05 pm
SNN
-
SAN
2 stops27h 52m
British Airways
Mon 2/161:32 pm
SAN
-
SNN
2 stops19h 13m
British Airways
Deal found 1/26$936
This American Airlines deal was found by Cheapflights users on 1/25. 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 2/117:50 am
SNN
-
SAN
2 stops22h 36m
American Airlines
Sun 2/1510:43 pm
SAN
-
SNN
2 stops34h 02m
American Airlines
Deal found 1/25$939
This Expedia deal was found by Cheapflights users on 1/26. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 3/128:05 pm
SNN
-
SAN
2 stops32h 38m
Multiple Airlines
Thu 3/198:00 am
SAN
-
SNN
2 stops20h 30m
Multiple Airlines
Deal found 1/26$940
This British Airways deal was found by Cheapflights users on 1/24. 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.
Fri 2/208:05 pm
SNN
-
SAN
2 stops27h 44m
British Airways
Tue 2/249:00 am
SAN
-
SNN
2 stops18h 30m
British Airways
Deal found 1/24$965
This TravelUp deal was found by Cheapflights users on 1/26. 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 TravelUp is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 3/127:50 am
SNN
-
SAN
1 stop16h 20m
British Airways
Thu 3/193:38 pm
SAN
-
SNN
2 stops18h 07m
British Airways
Deal found 1/26$975
This TravelUp deal was found by Cheapflights users on 1/25. 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 TravelUp is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 2/117:50 am
SNN
-
SAN
2 stops22h 36m
British Airways
Sun 2/156:00 pm
SAN
-
SNN
1 stop33h 30m
British Airways
Deal found 1/25$980

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 January 27, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$929
(TravelUp)

One-way from

$412
(Kiwi.com)
Provider with most accurate pricing for Shannon-San Diego flight deals.
Search Deals
Provider most trusted by Cheapflights users for Shannon-San Diego flights.
Search Deals
From Shannon to San Diego
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One-way flight 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 January 27, 2026.
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

Wed 2/11

7:50 am-10:50 pm

2 stops23h 00m

San Diego

Sun 2/15

2:18 pm-4:45 pm

2 stops18h 27m

$929

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

$936

ShannonSan Diego

SNN - SAN

SNNSAN

Shannon

Wed 2/11

7:50 am-10:26 pm

2 stops22h 36m

San Diego

Sun 2/15

10:43 pm-4:45 pm

2 stops34h 02m

$939

ShannonSan Diego

SNN - SAN

SNNSAN

Shannon

Thu 3/12

8:05 pm-9:43 pm

2 stops32h 38m

San Diego

Thu 3/19

8:00 am-11:30 am

2 stops20h 30m

$940

ShannonSan Diego

SNN - SAN

SNNSAN

Shannon

Fri 2/20

8:05 pm-3:49 pm

2 stops27h 44m

San Diego

Tue 2/24

9:00 am-11:30 am

2 stops18h 30m

$965

ShannonSan Diego

SNN - SAN

SNNSAN

Shannon

Thu 3/12

7:50 am-5:10 pm

1 stop16h 20m

San Diego

Thu 3/19

3:38 pm-4:45 pm

2 stops18h 07m

$975

ShannonSan Diego

SNN - SAN

SNNSAN

Shannon

Sun 4/19

1:35 pm-12:52 pm

3 stops55h 17m

$412

ShannonSan Diego

SNN - SAN

SNNSAN

Shannon

Thu 4/30

8:45 pm-5:40 pm

3 stops52h 55m

$427

ShannonSan Diego

SNN - SAN

SNNSAN

Shannon

Sun 4/19

7:30 am-5:45 pm

1 stop18h 15m

$505

ShannonSan Diego

SNN - SAN

SNNSAN

Shannon

Sun 6/14

2:30 pm-9:46 am

1 stop27h 16m

$632

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/26

Showing 1-10 of 12 results
1
2
  • 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.

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 $939, British Airways can have you in San Diego from Shannon, Clare in 22h 36m. 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
National City
Coronado
La Mesa
Poway
Julian
Lemon Grove

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