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$335+ Cheap flights from San Jose, CA (SJC) to Ireland

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 2/2. Fares are subject to change and may not be available on all flights or dates of travel.
SJC — DUB
Dec 20 — Dec 271
Sat 12/20
Sat 12/27
1 adult, Economy
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Find flight deals from San Jose to Ireland

Cheapest flights from San Jose to Ireland
Explore the most affordable flight options available from San Jose to Ireland. Find the lowest fares from popular airlines and budget airlines, with prices last updated on November 20, 2025.

This Delta deal was found by Cheapflights users on 11/18. 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.
Thu 12/46:20 amSJC - DUB
1 stop17h 25mDelta
Tue 12/98:50 amDUB - SJC
2 stops19h 51mDelta
Deal found 11/18$601
This Expedia deal was found by Cheapflights users on 11/19. 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 12/18:45 amSJC - DUB
2 stops17h 35mLufthansa
Sun 12/75:55 pmDUB - SJC
2 stops35h 32mLufthansa
Deal found 11/19$712
This oojo deal was found by Cheapflights users on 11/18. 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.
Wed 12/311:16 amSJC - DUB
2 stops14h 59mIcelandair
Fri 12/1211:30 amDUB - SJC
2 stops19h 29mIcelandair
Deal found 11/18$747
This United Airlines deal was found by Cheapflights users on 11/19. 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.
Mon 12/16:30 amSJC - DUB
1 stop17h 40mUnited Airlines
Sun 12/79:00 amDUB - SJC
2 stops44h 27mUnited Airlines
Deal found 11/19$790
This Expedia deal was found by Cheapflights users on 11/18. 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.
Wed 12/242:29 pmSJC - DUB
2 stops32h 41mMultiple Airlines
Thu 1/85:20 pmDUB - SJC
2 stops35h 36mMultiple Airlines
Deal found 11/18$812
This KLM deal was found by Cheapflights users on 11/19. 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.
Mon 12/16:25 amSJC - DUB
1 stop17h 20mKLM
Sun 12/79:45 amDUB - SJC
1 stop18h 56mKLM
Deal found 11/19$818
This oojo deal was found by Cheapflights users on 11/18. 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 12/49:49 amSJC - DUB
2 stops16h 26mIcelandair
Mon 12/811:30 amDUB - SJC
2 stops19h 29mIcelandair
Deal found 11/18$824
This Air Canada deal was found by Cheapflights users on 11/19. 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 12/16:25 pmSJC - DUB
2 stops28h 45mMultiple Airlines
Fri 12/59:00 amDUB - SJC
2 stops36h 32mMultiple Airlines
Deal found 11/19$831
This United Airlines deal was found by Cheapflights users on 11/19. 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.
Mon 12/16:30 amSJC - DUB
1 stop17h 40mUnited Airlines
Fri 12/59:00 amDUB - SJC
2 stops20h 27mUnited Airlines
Deal found 11/19$847
This Air Canada deal was found by Cheapflights users on 11/19. 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 12/16:25 pmSJC - DUB
3 stops28h 45mAir Canada
Fri 12/59:00 amDUB - SJC
3 stops36h 32mAir Canada
Deal found 11/19$873
This oojo deal was found by Cheapflights users on 11/20. 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 12/92:37 pmSJC - ORK
2 stops16h 48mBritish Airways
Mon 12/157:40 amORK - SJC
2 stops19h 36mBritish Airways
Deal found 11/20$990
This American Airlines deal was found by Cheapflights users on 11/19. 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.
Tue 12/22:27 pmSJC - SNN
2 stops18h 18mAmerican Airlines
Fri 12/52:45 pmSNN - SJC
2 stops29h 46mAmerican Airlines
Deal found 11/19$1,093

Cheap flight deals from San Jose to Ireland

Keep the following information in mind while searching for San Jose to Ireland flight deals. Data was last updated November 20, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$527
(KAYAK)

One-way from

$335
(Kiwi.com)

Popular in

June

Cheapest in

October

Average price

$728
Provider with most accurate pricing for San Jose-Dublin flight deals.
Search Deals
Provider most trusted by Cheapflights users for San Jose-Dublin flights.
Search Deals
From San Jose to Ireland
Search Deals
One-way flight from San Jose to Ireland
Search Deals
Highest demand for flights based on searches. 29% potential increase in price ($323 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 8% potential price decrease ($58 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in November 2025
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from San Jose to Ireland 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 20, 2025.
Use the filters below to find and compare flights from San Jose to Ireland that are best for you.

Fly from

San Jose

Fly to

Ireland

Route

Depart

Return

Price

San JoseDublin

SJC - DUB

SJCDUB

San Jose

Thu 12/4

6:20 am-7:45 am

1 stop17h 25m

Dublin

Tue 12/9

8:50 am-8:41 pm

2 stops19h 51m

$601

San JoseDublin

SJC - DUB

SJCDUB

San Jose

Tue 3/10

8:45 am-6:10 am

2 stops14h 25m

Dublin

Wed 4/1

9:50 am-9:07 pm

2 stops43h 17m

$635

San JoseDublin

SJC - DUB

SJCDUB

San Jose

Fri 1/23

3:32 pm-9:25 am

2 stops33h 53m

Dublin

Tue 1/27

7:05 pm-10:12 pm

2 stops35h 07m

$643

San JoseShannon

SJC - SNN

SJCSNN

San Jose

Sat 2/14

6:00 am-11:30 am

2 stops21h 30m

Shannon

Tue 2/24

7:50 am-10:11 am

2 stops34h 21m

$650

San JoseDublin

SJC - DUB

SJCDUB

San Jose

Thu 3/5

6:15 am-7:45 am

1 stop17h 30m

Dublin

Fri 3/13

5:55 am-6:51 pm

2 stops19h 56m

$651

San JoseDublin

SJC - DUB

SJCDUB

San Jose

Fri 2/27

10:35 pm-7:45 am

1 stop25h 10m

Dublin

Sun 3/8

5:55 am-3:20 pm

2 stops17h 25m

$656

San JoseDublin

SJC - DUB

SJCDUB

San Jose

Sun 3/15

10:30 pm-9:20 am

2 stops27h 50m

Dublin

Fri 3/27

9:45 am-9:32 pm

1 stop18h 47m

$657

San JoseDublin

SJC - DUB

SJCDUB

San Jose

Tue 3/10

6:30 am-7:45 am

1 stop18h 15m

Dublin

Tue 3/31

11:00 am-9:32 pm

1 stop18h 32m

$657

San JoseDublin

SJC - DUB

SJCDUB

San Jose

Sat 3/14

10:30 pm-8:45 am

2 stops27h 15m

Dublin

Fri 3/27

9:45 am-9:32 pm

1 stop18h 47m

$657

San JoseDublin

SJC - DUB

SJCDUB

San Jose

Tue 3/10

6:30 am-7:45 am

1 stop18h 15m

Dublin

Wed 4/1

10:00 am-9:06 pm

1 stop19h 06m

$657

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/20

Showing 1-10 of 44 results
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Best time to book a flight from San Jose to Ireland

Have a flexible travel schedule? Discover the best time to fly to Ireland 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 Ireland

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

Currently, August is the cheapest month in which you can book a flight from San Jose, California to Ireland (average of $455). Flying from San Jose, California to Ireland in June is currently the most expensive (average of $716). 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 SJC to IE?

Find hourly flight availability from San Jose to Ireland. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated November 20, 2025.

It’s typically best to fly out from San Jose, California to Ireland in the afternoon. Doing so could potentially save you 30% on the flight price compared to flying in the morning, which is usually more expensive.

Reviews of airlines servicing Ireland

Get insights into the airlines that provide service to Ireland. 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 Ireland. Reviews last updated November 20, 2025.
See what other customers who have flown with American Airlines and Aer Lingus from San Jose to Ireland have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
American Airlines
7.2
Good
11,047 reviews

Comfort

7.2

Boarding

7.5

Crew

8.0

Food

6.4

Overall

7.2

Entertainment

6.9

Reviews

1 / 20
4.0
Okay

Cameron,Nov 2025

PDX - LHR

The plane was very old...had no WiFi available. The crew were not friendly nor helpful.
American Airlines
7.2
Good
11,047 reviews
American Airlines
7.2
Good
11,047 reviews

Comfort

7.2

Boarding

7.5

Crew

8.0

Food

6.4

Overall

7.2

Entertainment

6.9

Reviews

1 / 20
4.0
Okay

Cameron,Nov 2025

PDX - LHR

The plane was very old...had no WiFi available. The crew were not friendly nor helpful.
Aer Lingus
7.2
Good
1,377 reviews
American Airlines
7.2
Good
11,047 reviews

Comfort

7.2

Boarding

7.5

Crew

8.0

Food

6.4

Overall

7.2

Entertainment

6.9

Reviews

1 / 20
4.0
Okay

Cameron,Nov 2025

PDX - LHR

The plane was very old...had no WiFi available. The crew were not friendly nor helpful.

Related info for your journey

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

  • What airport do you fly from for flights from San Jose to Ireland?

    San Jose (SJC), located 2.9 mi from the city center, is the airport you fly out of when you book flights from San Jose to Ireland.

  • How long is the flight from San Jose, California to Ireland?

    Departing from San Jose, California to Ireland will take you 14h 25m. There are 5083 mi between San Jose, California and Ireland. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

  • What are the most popular routes from San Jose, California to Ireland?

    While some choose either San Jose - Shannon or San Jose - Knock Intl, San Jose - Dublin is the most popular route from San Jose, California to Ireland.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from San Jose to Ireland 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 Ireland?

    Currently, August is the cheapest month in which you can book a flight from San Jose, California to Ireland (average of $455). Flying from San Jose, California to Ireland in June is currently the most expensive (average of $716). 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

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Top 2 airlines flying from San Jose to Ireland

Discover the top 2 airlines that operate flights from San Jose to Ireland. 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 November 20, 2025.
AirlineCheapestAverageFlexibilityOn-time
Aer LingusCheapest$576Average$1,081FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$719Average$1,105FlexibilityNo cancel feeOn-time71%

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