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Find cheap flights from Ontario to Ireland from $384

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Ontario to Ireland departing on 8/17. 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
0 bags
Sat 6/22
Sat 6/29

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Best Ireland Flight Deals

Cheapest round-trip prices found by our users on KAYAK in the last 72 hours

Dublin
Dublin2 stops$530
Shannon
Shannon2 stops$643

Good to know

Low season

March

High season

June

Cheapest flight

$384
Best time to beat the crowds with an average 9% drop in price.
Most popular time to fly with an average 36% increase in price.
Flight from Ontario to Dublin

FAQs - booking Ireland flights

  • How does KAYAK find such low prices on flights from Ontario 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 Ontario to Ireland.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Ireland from Ontario 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 Ontario 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 to Ireland with an airline and back to Ontario with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Ontario 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 to Ireland from Ontario up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

See more FAQs

Top tips for finding cheap flights to Ireland

  • Morning departure is around 5% cheaper than an evening flight, on average*.
*Average of the lowest prices shown in KAYAK’s search results for departures within the next 30 days

Top 5 airlines serving from Ontario to Ireland

 
Need help choosing which airline to fly with from Ontario 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.
8.0
DeltaOverall score based on 10561 reviews
8.0Entertainment
8.2Boarding
7.9Comfort
8.6Crew
7.4Food
Airline reviews

There was a loud squeaky sound the whole time we were flying.

6.0 GoodEliza, Apr 2024SAN - LAX
Read more about Delta reviews

There was a loud squeaky sound the whole time we were flying.

I didn’t not like that I could not select my seat and ended up with the worse seat.

The landing was bad and the hostess came two times and i was sleeping but when she served the person that nexts to me I woke up and she didn’t even asked me if I need any drink or snacks two times!!!!

Plane was late because of a mechanical malfunction and the food listed as available was not. Flight attendants seem over worked and under paid. They just done seem happy. And that can be seen in their faces.

Waited 3 hours on a plane to de-ice due to manpower issues. Waited another hour and a half once we landed because of a gate issue. Missed my connections. Created. A total of 13 hours of delay.

Great, on time departure, friendly and accommodating crew, great leg room, Smith flight

Plane was turned around due to fog half way into the flight, Delta did not properly direct passengers to stay on same flight and instead failed to properly rebook on Alaska

Honestly, I didn’t expect that I will experience this long time wait during the check in. There was only one person who was taking care of the passengers for the economy class and it took us to wait about one hour to do our check i. As a result we barely get to the airplane as the gate was at the end of the airport. That is totally not professional where one crue is working at the registration desk with economy and 3-4 crues are helping for the business class.

Like most domestic flights in the US, you are basically on your own with this airline when it comes to food, so be sure to purchase meals and drinks ahead of time or expect to arrive starving and dehydrated (like I was).

You need to be a hacker to get the (Free) WiFi

The food from Lagos to Amsterdam was was very poor compared to AMS-YYZ

The flight was again delayed for more then 2 hours with some lousy explanation regarding the reason of the delay. Although the flight was delayed for more than 2 hours, no refreshments were offered (according to EU regulations). Last 4 flights on KLM - always at least 2 hrs late. So be prepared that you cannot plan anything with KLM.

We left one hour late because of technical difficulties. The economy comfort seats are great for the price. The crew was mediocre, they do not provide a pleasant experience, they just deliver food and drinks and give orders, not very amicable, no service and hospitality focus.

Booked connecting flights with KlM. My serving flight was the furthest part of the airport. On arrival in Zurich. My two cases arrived but only one carry on belong to my son. His three suitcase didn't arrive. After enquiring we discovered they were still in Amsterdam. We landed at 11.12. We eventually left the airport just after one.

Overall a good experience. We were disappointed when we had to check our carry on due to the plane being full. KLM hadn’t notified us and we had valuable items in the carry on but they still made us check it. Some of the food was great and some was mediocre. Crew is really kind and funny.

The flight itself it was great nice food the crew were very nice and helpful, Checking in from Birmingham wasn't great long queues for bag dropped, And I had my hand luggage case taken away from me even though I requested to have it with me as I had breakables items. I was told I can not because of the length of the flight with no explanation at all no options was given for me to take my fragile items out of my case it was taken away with hold buggage I find the staff member who was checking me in very unpleasant !! Can we please be advise if the rules have changed about the the carry on hand luggage it will be easier to be advise on booking your tickect if we not allowed to take the hand luggage with me. Overall I had a good flight .

The plane was clean and the staff was friendly. Food and drinks as expected on international flights. The entertainment system was old style, with a pullout controller, and selections not as extensive as on other flights.

The boarding was one of the worst I’ve ever experienced. The fault lays on Ohare Airport and not so much the airline. The waiting area by the gate was the size to accommodate a regional flight for 20-30 people and right next to a busy walkway. When you cramped nearly 300 passengers into that space is was unbearable.

The seats are too cramped in that plane. If you’re above 1,80m consider alternatives or first class I guess… There were no emergency exits to seat somewhere with more legroom

one of my bags was drenched with fish smelling water and all my new clothes bought at dublin and the 23kg checked in bag were all gone waste with very pungent fish smell and also having stains

Horrible - they lied to me about baggage & boarding, even though I specifically spoke to their agents the day before my flight about my issue. When I showed up they did not let me board and stranded me at my airport until I bought a new flight with money I did not have to spend.

Not sure why JAL partnered with American Airlines because their service is no where near similar. Flight attendants were not friendly and didn’t smile. Food was horrible…

The experience was great and much better than the flight going out. of course I was in first class but the service was excellent

Comfort of seats, ease of boarding. Food selection could be better

Food options were limited which is absolutely embarrassing for a Flight of this size The staff did not come around as much and I am not accustomed to such poor service from American Airlines Drinks I believe were limited to soda and water

Crew were attentive and friendly. Flight was smooth and early! I enjoyed the less crowded plane. Thank you!

We are gluten free, there were not any available complimentary gluten free options.

No meal on a cross country flight? SFO-MiA is pretty much the definition of a coast to coast flight. No meal provided. Sky high wi-fi rates too. Stop nickel and diming your customers.

The staff was unprofessional and didn’t communicate very well. The boarding process was very disheveled, potentially due to a power outage the previous day but there was no contingency plan to properly get passengers boarded the following day. Once boarded the aircraft stayed on the tarmac for over 45 minutes due to high winds. The communication was sporadic but an announcement was finally made an additional 30 minutes later that the flight was cancelled but we couldn’t get off the plane. Prior to deplaning one of the gate agents came on the plane and made an announcement for everyone to pickup their checked bags and take a card to rebook a new reservation because they didn’t have adequate staff. Flights were missed, passengers went to different airports and there was little to no assistance from AA.

You cancelled my flight by email then made it very difficult to get in contact with you. Then put me in a flight with a long layover in Mexico returning to the wrong airport in uk. Mind blowing my stressful. I missed see my grand dad because of you.

I am quite satisfied. The flight was on time and landed early. Staff was friendly.

Needed more info on connecting flight. Late flight made very short connection. Lost luggage that we still do not have!

Seats comfortable on economy plus and attendants very helpful. Food was ok. Bathrooms needed servicing.

Good food, prompt and timely flight, good on-board personnel

I paid for premium economy but BA oversold the seats and we ended up being downgraded. Not acceptable given how much we paid for the flight. We were also separated to 2 different areas so not only did we not get the service we paid for, we didn’t even get to sit together. I’m not happy at this treatment by BA because of corporate greed.

Original flight was cancelled - After waiting 2 hours for new take-off times. Then had to stand in line for 3 hours, ending at 2:30 am - to be told, " No hotel rooms anywhere in Dallas". No way for me to get any rest at DFW at that time of night.

Flight was an Iberia Flight on Level but seemed to be outsourced to a 3rd airline - Wamos. Seating pattern was different than when booked, we waited on the JETBRIDGE for 45 minutes to board, food was terrible. Movie options were limited to about 20 and very old, TV shows was limited to about 15 and equally as old. Staff was fine but definitely the "b-team". Landed about 60 minutes early and waited on the runway for 45 minutes - despite that Logan Airport in Boston recently added new gates. Mediocre experience at best.

I liked the friendly crew and desk staff, all very helpful. I was surprised and a little annoyed on my outbound flight from LGW to MCO as I had prepaid and booked my seat, which was all correct at check in on my boarding pass. when I got on the plane someone was in my seat ! I was moved to another seat. The food choice is quite limited and I feel that an option of a muffin for breakfast snack would be welcomed, not everyone wants egg or bacon wrap. The choice of entertainment is good, plenty to keep you busy on a long haul flight. I liked the option offered to have the cabin bag checked into the hold, it saved me as an older, lone traveller lifting my case into the overhead locker or finding there was no space.

good service from crew. Before the would have an option between cookies or nuts as snacks.. Now, there are only cookies. too bad. People who can not have sugar don't have a choice.

I like the team but I don't like the food you provided with money. I want free food and free water.

Wonderful service and very comfy in the bulkhead in Economy Plus! Delicious food.

The BA team at Sky Harbor is deplorable, full of unnecessary attitude and poor communication. It seems like every member of the team was looking at another to solve the problem, instead of taking agency to do so themselves. I saw no less than 6 altercations with the same gate agent where he threatened to revoke the passengers boarding pass for asking a wildly reasonable question, something as simple as where the cue to board was. I’ve complained to BA before but it seems this isn’t an issue for them, which is very disappointing

Boarding poor in London,ok in Chicago. Don’t like Heatrow/terminal5

It was very good. We got a late start by about an hour and a half. However I worked rather have that than crash. It was purely mechanical. They had our tickets ready when we came off the plane in London for the next leg. The only mishap was when we got to Lisbon my husbands luggage made or bit mine didn't. All was not lost because I did finally get it 2 days later. I was really pleased that they c made the effort.

Leg space was not enough. The meal was not satisfactory.

Liked that my American Airlines status seamlessly transferred to BA so luggage check was free. Flights were on time, boarding quick. Wish they didn’t assign connecting gate so late at Heathrow.

The entire process was flawless and as expected flying first class. The only thing that I have a complaint on...when first boarding, the plane was EXTREMELY cold; then when we were trying to sleep, it was way too hot - just better regulating (especially trying to sleep) would have made it perfect.

- OK plane. Basic accommodations. OK food. The digital window shade wasn't working.

- OK plane. Basic accommodations. OK food. The digital window shade wasn't working. - Expect to be woken up more than an hour before landing when they start dinging the bell and making announcements and turning on all cabin lights to serve a snack. I would prefer they remain quiet and only serve people who want to wake up.

Better food and more space in the seats. Also when doing the web check in both times I was going in to your site the minute you open it and there is not really many seats to choose only to buy!!!

Book cheap flights from Ontario to Ireland

Recent round-trip flight deals

10/30Wed
2 stopsUnited Airlines
18h 00mONT-DUB
11/13Wed
2 stopsUnited Airlines
18h 31mDUB-ONT
$530
11/3Sun
2 stopsUnited Airlines
17h 00mONT-DUB
11/13Wed
2 stopsUnited Airlines
20h 52mDUB-ONT
$541
11/7Thu
1 stopKLM
18h 25mONT-DUB
11/11Mon
1 stopKLM
18h 08mDUB-ONT
$548
10/8Tue
1 stopIberia
14h 55mONT-DUB
10/15Tue
1 stopIberia
18h 46mDUB-ONT
$627
8/18Sun
1 stopDelta
17h 45mONT-DUB
12/18Wed
1 stopDelta
15h 02mDUB-ONT
$663
9/24Tue
1 stopIberia
13h 00mONT-DUB
10/10Thu
1 stopIberia
17h 02mDUB-ONT
$723
8/18Sun
1 stopBritish Airways
19h 35mONT-DUB
12/17Tue
2 stopsBritish Airways
18h 53mDUB-ONT
$768
8/18Sun
1 stopBritish Airways
13h 05mONT-DUB
12/16Mon
2 stopsBritish Airways
19h 03mDUB-ONT
$786
8/8Thu
1 stopAmerican Airlines
14h 59mONT-DUB
8/17Sat
1 stopAmerican Airlines
16h 36mDUB-ONT
$848
8/8Thu
1 stopAmerican Airlines
19h 35mONT-DUB
8/17Sat
2 stopsAmerican Airlines
18h 51mDUB-ONT
$853

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Recent one-way flight deals

8/17Sat
3 stops
43h 29mONT-DUB
$384
8/18Sun
2 stops
37h 55mONT-DUB
$390
8/18Sun
3 stops
43h 19mONT-DUB
$423
8/16Fri
1 stopDelta
25h 46mONT-DUB
$454
10/23Wed
1 stopIberia
13h 00mONT-DUB
$545
10/23Wed
2 stopsIberia
21h 40mONT-DUB
$573
9/14Sat
1 stopAmerican Airlines
22h 00mONT-DUB
$662
9/20Fri
1 stopAmerican Airlines
25h 46mONT-DUB
$681
6/27Thu
2 stopsBritish Airways
22h 16mONT-DUB
$1,191
7/21Sun
2 stopsBritish Airways
20h 15mONT-DUB
$1,430

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Last minute flights from Ontario to Ireland

Last minute flight, train and bus deals

5/26Sun
multi-stopAmerican Airlines
21h 30mONT-DUB
5/28Tue
multi-stopAmerican Airlines
15h 14mDUB-ONT
$1,091
5/26Sun
multi-stopAmerican Airlines
21h 30mONT-DUB
6/9Sun
multi-stopAmerican Airlines
19h 14mDUB-ONT
$1,176
5/27Mon
multi-stopAmerican Airlines
19h 45mONT-DUB
6/3Mon
multi-stopAmerican Airlines
15h 14mDUB-ONT
$1,177
5/26Sun
multi-stopAmerican Airlines
21h 30mONT-DUB
6/9Sun
multi-stopAmerican Airlines
17h 55mDUB-ONT
$1,180
5/27Mon
multi-stopBritish Airways
18h 14mONT-DUB
7/29Mon
multi-stopBritish Airways
19h 50mDUB-ONT
$1,266
5/26Sun
multi-stopIberia
34h 55mONT-DUB
5/28Tue
multi-stopIberia
15h 28mDUB-ONT
$1,307
5/25Sat
multi-stopIberia
34h 55mONT-DUB
5/27Mon
multi-stopIberia
56h 58mDUB-ONT
$1,347
5/27Mon
multi-stopUnited Airlines
20h 30mONT-DUB
6/3Mon
multi-stopUnited Airlines
40h 44mDUB-ONT
$1,501
5/25Sat
multi-stop
17h 05mONT-DUB
6/1Sat
multi-stop
19h 43mDUB-ONT
$2,104
5/25Sat
multi-stop
17h 05mONT-DUB
6/1Sat
multi-stop
19h 43mDUB-ONT
$3,199

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Ontario - Ireland Flights

Departure:

Ontario (ONT)United States

Return flight deals:

Ireland - Ontario

Cabin classes: