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Shannon

$517+ Cheap flights from San Jose, CA (SJC) 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 5/12. Fares are subject to change and may not be available on all flights or dates of travel.
SJC — SNN
Dec 26 — Jan 21
Fri 12/26
Fri 1/2
1 adult, Economy
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Cheap flight deals from San Jose to Shannon

Discover tips and strategies to find the most affordable flight options for your journey from San Jose (SJC) 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 November 26, 2025.

Round-trip from

$683
(American Airlines)

One-way from

$517
(oojo)
From San Jose to Shannon
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One-way flight from San Jose to Shannon
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Find flight deals from San Jose to Shannon

Cheapest flights from San Jose to Shannon
Explore the most affordable flight options available from San Jose to Shannon. Find the lowest fares from popular airlines and budget airlines, with prices last updated on November 26, 2025.

This oojo deal was found by Cheapflights users on 11/25. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/22:27 pmSJC - SNN
2 stops18h 18mBritish Airways
Wed 12/105:30 pmSNN - SJC
2 stops35h 15mBritish Airways
Deal found 11/25$867
This Expedia deal was found by Cheapflights users on 11/25. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/111:06 amSJC - SNN
2 stops21h 39mMultiple Airlines
Sun 12/78:05 pmSNN - SJC
2 stops32h 31mMultiple Airlines
Deal found 11/25$997
This oojo deal was found by Cheapflights users on 11/26. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/279:57 amSJC - SNN
2 stops25h 28mBritish Airways
Wed 12/38:05 pmSNN - SJC
2 stops34h 37mBritish Airways
Deal found 11/26$1,131
This British Airways deal was found by Cheapflights users on 11/24. 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.
Wed 12/1011:13 amSJC - SNN
2 stops16h 17mBritish Airways
Sun 12/147:50 amSNN - SJC
2 stops19h 26mBritish Airways
Deal found 11/24$1,170
This Air Canada deal was found by Cheapflights users on 11/25. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/18:45 amSJC - SNN
3 stops18h 45mAir Canada
Sun 12/78:05 pmSNN - SJC
3 stops33h 22mAir Canada
Deal found 11/25$2,007
This oojo deal was found by Cheapflights users on 11/25. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/226:00 amSJC - SNN
2 stops21h 30mBritish Airways
Sat 12/277:50 amSNN - SJC
2 stops22h 49mBritish Airways
Deal found 11/25$2,406

Cheapflights Fare Finder

 
Customize your flight search to find flights from San Jose 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 November 26, 2025.
Use the filters below to find and compare flights from San Jose to Shannon that are best for you.

Fly from

San Jose

Fly to

Shannon

Route

Depart

Return

Price

San JoseShannon

SJC - SNN

SJCSNN

San Jose

Thu 2/19

11:01 am-4:45 pm

2 stops21h 44m

Shannon

Mon 2/23

7:50 am-9:29 pm

2 stops45h 39m

$683

San JoseShannon

SJC - SNN

SJCSNN

San Jose

Mon 1/12

12:46 pm-4:45 pm

2 stops19h 59m

Shannon

Wed 1/21

7:50 am-10:35 pm

2 stops22h 45m

$750

San JoseShannon

SJC - SNN

SJCSNN

San Jose

Thu 2/19

11:01 am-11:30 am

2 stops40h 29m

Shannon

Mon 2/23

8:05 pm-10:56 pm

2 stops34h 51m

$902

San JoseShannon

SJC - SNN

SJCSNN

San Jose

Wed 12/10

11:13 am-11:30 am

2 stops16h 17m

Shannon

Sun 12/14

7:50 am-7:16 pm

2 stops19h 26m

$1,170

San JoseShannon

SJC - SNN

SJCSNN

San Jose

Sun 1/25

11:51 am-4:45 pm

2 stops20h 54m

Shannon

Thu 2/5

7:50 am-10:35 pm

2 stops22h 45m

$4,374

San JoseShannon

SJC - SNN

SJCSNN

San Jose

Wed 1/21

2:32 pm-4:45 pm

2 stops18h 13m

Shannon

Sun 2/1

8:05 pm-9:29 pm

2 stops33h 24m

$4,440

San JoseShannon

SJC - SNN

SJCSNN

San Jose

Tue 5/12

2:34 pm-4:10 pm

2 stops17h 36m

$517

San JoseShannon

SJC - SNN

SJCSNN

San Jose

Tue 12/9

11:13 am-11:30 am

2 stops16h 17m

$544

San JoseShannon

SJC - SNN

SJCSNN

San Jose

Fri 2/20

2:26 pm-3:45 pm

2 stops17h 19m

$548

San JoseShannon

SJC - SNN

SJCSNN

San Jose

Thu 1/15

11:51 am-4:45 pm

2 stops20h 54m

$566

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/24

Best time to book a flight from San Jose to Shannon

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

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

Currently, October is the cheapest month in which you can book a flight from San Jose, California to Shannon, Clare (average of $539). Flying from San Jose, California to Shannon, Clare in June is currently the most expensive (average of $863). 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.

Related info for your journey

Find useful and relevant information for your journey from San Jose to Shannon. 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 San Jose, California to Shannon, Clare?

    A quick flight from San Jose, California to Shannon, Clare can take about 19h 59m. American Airlines provides one of the quickest options available for as low as $750. The distance from San Jose, California to Shannon, Clare is about 5032 mi. This flight may include one or multiple stops.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from San Jose 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 Jose, California to Shannon, Clare?

    Currently, October is the cheapest month in which you can book a flight from San Jose, California to Shannon, Clare (average of $539). Flying from San Jose, California to Shannon, Clare in June is currently the most expensive (average of $863). 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
Ennis

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