$389 Find Cheap Flights from San Jose to Ireland

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from San Jose to Ireland departing on 5/10. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

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Cheap Flights from San Jose to Ireland

Cheapest round-trip prices found by our users on KAYAK in the last 72 hours
Dublin
Dublin2 stops$605
Shannon
Shannon2 stops$583
Cork
Cork2 stops$656
Knock
Knock2 stops$888
Dublin
Dublin2 stops$605
Shannon
Shannon2 stops$583
Cork
Cork2 stops$656
Knock
Knock2 stops$888

Book Cheap San Jose to Ireland Plane Tickets

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from San Jose to Ireland that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from San Jose to Ireland

Tue, Feb 17 - Tue, Feb 24
American Airlines Logo
2:26 pm - 4:45 pm
SJC
-
SNN
18h 19m2 stops
American Airlines Logo
7:50 am - 10:11 am
SNN
-
SJC
34h 21m2 stops
$583American Airlines
Tue, Feb 17 - Tue, Feb 24
Scandinavian Airlines Logo
3:45 pm - 11:45 am
SJC
-
DUB
36h 00m2 stops
Scandinavian Airlines Logo
7:05 pm - 8:19 pm
DUB
-
SJC
33h 14m2 stops
$605Scandinavian Airlines
Sun, Feb 1 - Wed, Feb 18
United Airlines Logo
8:40 am - 8:10 am
SJC
-
DUB
15h 30m2 stops
United Airlines Logo
9:00 am - 9:05 pm
DUB
-
SJC
44h 05m2 stops
$631United Airlines
Sun, Feb 1 - Wed, Feb 18
Air Canada Logo
8:40 am - 7:10 am
SJC
-
DUB
14h 30m2 stops
Air Canada Logo
9:00 am - 9:05 pm
DUB
-
SJC
44h 05m2 stops
$635Air Canada
Wed, Feb 11 - Mon, Feb 23
British Airways Logo
12:50 pm - 5:00 pm
SJC
-
DUB
20h 10m2 stops
British Airways Logo
8:40 pm - 9:30 pm
DUB
-
SJC
32h 50m2 stops
$637British Airways
Tue, Feb 17 - Tue, Feb 24
Multiple Airlines Logo
1:57 pm - 3:45 pm
SJC
-
DUB
17h 48m2 stops
Multiple Airlines Logo
9:45 am - 9:18 pm
DUB
-
SJC
19h 33m1 stop
$649Multiple Airlines
Sun, Feb 1 - Tue, Feb 17
United Airlines Logo
8:40 am - 8:10 am
SJC
-
DUB
15h 30m2 stops
United Airlines Logo
10:40 am - 9:05 pm
DUB
-
SJC
18h 25m2 stops
$658United Airlines
Sun, Apr 26 - Thu, May 7
British Airways Logo
2:02 pm - 4:10 pm
SJC
-
SNN
18h 08m2 stops
British Airways Logo
7:40 am - 6:51 pm
SNN
-
SJC
19h 11m2 stops
$707British Airways
Tue, Feb 17 - Tue, Feb 24
Air Canada Logo
8:50 am - 4:45 pm
SJC
-
SNN
23h 55m3 stops
Air Canada Logo
7:50 am - 9:05 pm
SNN
-
SJC
45h 15m3 stops
$799Air Canada
Mon, Feb 16 - Mon, Feb 23
Multiple Airlines Logo
4:20 pm - 9:00 pm
SJC
-
ORK
20h 40m2 stops
Multiple Airlines Logo
11:55 am - 12:22 pm
ORK
-
SJC
32h 27m3 stops
$877Multiple Airlines
Booking Insights

KAYAK's insights & trends for San Jose to Ireland flights

Get data-powered insights and trends into flights from San Jose to Ireland to help you find the cheapest flights, the best time to fly and much more.

What is the cheapest month to fly from San Jose to Ireland?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from San Jose to Ireland, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from San Jose to Ireland is September, when tickets cost $555 (return) on average. On the other hand, the most expensive months are June and July, when the average cost of round-trip tickets is $1,926 and $1,134 respectively.

Good to know

Low seasonJanuary
Cheapest flight$320
Best time to beat the crowds but there is an average 19% increase in price.
Most popular time to fly with an average 30% increase in price.
Flight from San Jose to Shannon

FAQs - booking Ireland flights

  • How does KAYAK find such low prices on flights from San Jose to Ireland?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from San Jose to Ireland.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from San Jose to Ireland?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight from San Jose to Ireland is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from San Jose to Ireland?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly from San Jose to Ireland with an airline and back with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from San Jose to Ireland?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying from San Jose to Ireland up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top airlines flying from San Jose to Ireland

 
Need help choosing which airline to fly with from San Jose to Ireland? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.2
American AirlinesOverall score based on 11080 reviews
7.2Comfort
7.5Boarding
6.4Food
6.9Entertainment
8.0Crew
Airline reviews

Overall experience was great. Flights were almost on time in departing and we arrived at our destination as scheduled. No issues with amenities or flight crew. Everything went well as as expected. Will fly again with American Airlines in the future!

10.0 ExcellentCandice, Jan 2026
MRY - PHX
Read more American Airlines reviews

Overall experience was great. Flights were almost on time in departing and we arrived at our destination as scheduled. No issues with amenities or flight crew. Everything went well as as expected. Will fly again with American Airlines in the future!

The flight was very smooth and the meal in business class was great.

I requested a low sodium meal. Reason being, I take medicine for high blood pressure and I wear compression socks on long flights to help with leg swelling. Having less sodium in meals really helps me feel better on long flights. I received my initial low sodium meal after takeoff. Just before landing, the crew came through with the meal cart and offered me what was being served. I said no thank you and then noticed my low sodium meal in the meal cart, with my name and seat assignment on it. I motioned to the crew member, but he grabbed the meal cart and proceeded to move to the rear of the aircraft. He didn’t see me or other passengers who had attempted to get this attention. He was more concerned about completing meal service since we were due to land in under 45 minutes. I pressed the call light five times from my seat to receive help, but no crew member responded to me. So, I didn’t receive a second meal, one that I requested (the low sodium option). This led me to have a migraine from only eating one meal on an 11-hour flight. This is why I’m not a fan of flying US-based airlines overseas. The crew members continue to show the absolute worst customer service experience. I would not recommend flying American for overseas flights.

Not great. Booked Extra seats and got nothing extra at all. It’s basically a big budget airline.

Horrible. Both legs of my flight were delayed more than 6 hours. No compensation, no screens on the plane, and the plane was not clean.

The flight was smooth, the pilot kept us informed about delays and we arrived more of less on time

The flight was flawless and we even arrived between 20 and 25 minutes early!

Always seated jammed in rear of aircraft Admirals Club food at DFW terminal D was absolute worst food experience and I pay $600/year to eat this dried out junk

Mostly good. Flight was crowded but Airline personnel were very friendly & accommodating. It would be good to have savory snacks rather than just sweet Biscoff cookies.

It was a red eye flight, so no meals were provided, but it was fine with snacks. The seats felt cramped and almost too narrow.

The connection time between the regional flight (from Newcastle) to an international flight (to The States) was too short. To require as second security scan and customs clearance within an hour and 20 mins is not enough time to make the actual connection. We had a final boarding call the minute we walked out of US customs and had to sprint (with two small children) through 20 gates to make it in time before the door closed. The concept is great in theory to clear customs before leaving Europe, but the timing needs to be adjusted. We travel abroad frequently and won’t be using this route again. Thanks.

Canceled my flight couple hours before takeoff. They could not find a decent re-routing and refused to pay for when i subjected alternative with Lufthansa.

Seats a little to soft on the SFO DUB flight

I was not admitted to the flight!!! I need a refund for this

Well, I think we left close to on time. Crew was “eh”.

This is a bit of a rant, but I'll try to keep it civil. The flight was delayed for 2 hours with almost ZERO updates from agents. Just "there's technical issues, we don't know if or when it'll be resolved" once an hour maybe? And the gate signs, and app never updated to show the delay until it was finally resolved. So when I called Aer Lingus to see if I could rebook, I had literally the dumbest conversation with the person on the phone there where he says "It's showing your flight departed at 11:10. So it's already departed!", where I responded, "Well, it's 12:45 and I'm on the phone with you, standing in the airport, staring at the plane. So...I'm not sure what your system is saying, but we aren't in the air right now.". He said "Nothing I can do. Since it doesn't show delayed in my system, you would be charged to reschedule." Once we finally departed 2 hours late, things were going smoothly as I would expect, except in another very strange way. The stewardesses were rolling the cart down the aisle offering drinks and I asked for a water, to which they said "Sure, you can buy a bottle". I'm not sure if this is an Aer Lingus thing. Maybe something I'd expect from Ryan Air, but for a 3 hour international flight, to not have complimentary water available for customers is an absolute first, in 15 years of flying for me. I'm not upset with the plane staff at all. They were very friendly, but Aer Lingus' policies, how they handled the delay, and the unbelievable conversation with the customer service representative, leaves a lot to be desired in those areas. Also, I'm not upset about the delay. Things happen. Technical issues. But this is a place where airlines really need to clearly communicate with their customers. They also changed gates from 12N to 13N and there was no notification on any app, or announcement over the PA. End of rant. I hope they get some feedback on how to improve communication, because otherwise, they were great. And the second leg of my trip was incredibly smooth - no nickle and diming water, no communication issues. Very professional and efficient and even landed early

The folks and flights were fantastic. I unfortunately wasn’t able to order a meal that I could eat (I’m gluten free) because I got my ticket through kayak, but they tried their best to find something to help me get through the long flight and I’ll forever remember their kindness.

Flight takeoff was delayed an hour, but arrival time was not updated at the same time as departure time, so those picking me up at the other end were not alerted to the change in my arrival.

Seats are terribly cramped. I’m only 5’2” and my knees were practically in my face. No room to put a normal size bag under the seat and when the person in front of you reclined their seat your tray table was in your lap. This is the airline’s way of cramming more seats into the plane to make more money. I’ll think twice about taking Aer Lingus again since there are a few other options from Boston to the Emerald Isle.

Couldn’t check In online, message was couldn’t check in until Sunday morning though plane left Saturday night. Checked in okay at airport but caused slot if stress.

Everything you need to know for your flight from San Jose to Ireland

Information on your arrival and departure airports