C$ 375 Find Cheap Flights from Ottawa to Ireland – Compare and Save

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Ottawa to Ireland departing on 8/9. 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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Flight Deals

Best Ireland Flight Deals from Ottawa

Cheapest round-trip prices found by our users on KAYAK in the last 72 hours
Dublin
Dublin2 stopsC$ 699
Cork
Cork3 stopsC$ 1,123
Shannon
Shannon2 stopsC$ 1,421
Dublin
Dublin2 stopsC$ 699
Cork
Cork3 stopsC$ 1,123
Shannon
Shannon2 stopsC$ 1,421

Cheap Flights from Ottawa to Ireland

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Ottawa 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 Ottawa to Ireland

Sun, 16 Aug - Wed, 26 Aug
WestJet Logo
6:55 a.m. - 8:20 a.m.
YOW
-
DUB
20h 25m
2 stops
WestJet Logo
9:40 a.m. - 12:20 a.m.
DUB
-
YOW
19h 40m
2 stops
C$ 699WestJet
Mon, 24 Aug - Fri, 4 Sep
WestJet Logo
6:55 a.m. - 10:45 a.m.
YOW
-
DUB
22h 50m
1 stop
WestJet Logo
12:15 p.m. - 12:20 a.m.
DUB
-
YOW
17h 05m
1 stop
C$ 702WestJet
Mon, 5 Oct - Tue, 20 Oct
WestJet Logo
6:55 a.m. - 8:40 a.m.
YOW
-
DUB
20h 45m
2 stops
WestJet Logo
10:10 a.m. - 12:20 a.m.
DUB
-
YOW
19h 10m
2 stops
C$ 708WestJet
Tue, 25 Aug - Thu, 3 Sep
WestJet Logo
6:55 a.m. - 8:20 a.m.
YOW
-
DUB
20h 25m
2 stops
WestJet Logo
9:40 a.m. - 12:20 a.m.
DUB
-
YOW
19h 40m
2 stops
C$ 709WestJet
Sat, 15 Aug - Sat, 22 Aug
Multiple Airlines Logo
7:00 a.m. - 9:15 p.m.
YOW
-
ORK
33h 15m
3 stops
Multiple Airlines Logo
8:50 a.m. - 12:20 a.m.
ORK
-
YOW
20h 30m
2 stops
C$ 1,123Multiple Airlines
Thu, 13 Aug - Thu, 20 Aug
Multiple Airlines Logo
6:55 a.m. - 7:55 p.m.
YOW
-
ORK
32h 00m
3 stops
Multiple Airlines Logo
3:25 p.m. - 6:15 p.m.
ORK
-
YOW
31h 50m
3 stops
C$ 1,240Multiple Airlines
Sun, 6 Sep - Thu, 10 Sep
United Airlines Logo
10:25 a.m. - 10:15 a.m.
YOW
-
SNN
18h 50m
2 stops
United Airlines Logo
9:30 a.m. - 5:16 p.m.
SNN
-
YOW
12h 46m
1 stop
C$ 1,421United Airlines
Sun, 6 Sep - Thu, 10 Sep
United Airlines Logo
6:00 a.m. - 7:30 a.m.
YOW
-
SNN
20h 30m
3 stops
United Airlines Logo
9:30 a.m. - 5:16 p.m.
SNN
-
YOW
12h 46m
1 stop
C$ 1,423United Airlines
Sun, 23 Aug - Thu, 27 Aug
Air Canada Logo
6:00 a.m. - 10:45 a.m.
YOW
-
ORK
23h 45m
2 stops
Air Canada Logo
7:10 a.m. - 6:53 p.m.
ORK
-
YOW
16h 43m
2 stops
C$ 1,645Air Canada
Sun, 23 Aug - Thu, 27 Aug
Air Canada Logo
6:00 a.m. - 10:45 a.m.
YOW
-
ORK
23h 45m
2 stops
Air Canada Logo
7:10 a.m. - 6:53 p.m.
ORK
-
YOW
16h 43m
2 stops
C$ 1,646Air Canada
Booking Insights

KAYAK's insights & trends for Ottawa to Ireland flights

Get data-powered insights and trends into flights from Ottawa 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 Ottawa to Ireland?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Ottawa 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 Ottawa to Ireland is July, when tickets cost C$ 594 (return) on average. On the other hand, the most expensive months are February and January, when the average cost of round-trip tickets is C$ 1,029 and C$ 1,001 respectively.

How far in advance should I book a flight from Ottawa to Ireland?

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from Ottawa to Ireland, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

To get a below-average price on a flight from Ottawa to Ireland, you should book around 4 weeks before departure, which saves you about 10% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 25 weeks before departure.

Good to know

Low seasonJanuary
Cheapest flightC$ 375
Best time to beat the crowds but there is an average 7% increase in price.
Most popular time to fly and prices are also 13% lower on average.
Flight from Ottawa to Dublin

FAQs - booking Ireland flights

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

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

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

  • What is the Hacker Fare option on flights from Ottawa 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 Ottawa 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 Ottawa 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 Ottawa 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 5 airlines flying from Ottawa to Ireland

 
Need help choosing which airline to fly with from Ottawa 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.
7.9
Porter AirlinesOverall score based on 442 reviews
8.6Crew
7.5Food
7.9Comfort
8.2Boarding
6.9Entertainment
Airline reviews

Look, I understand that Kayak doesn't know I cancelled my flight on Porter. So I didn't actually fly yesterday. My main disappointment is with Porter ticket fare policies, and maybe you can pass this on to them: At my employer's request, I had booked a full fare ticket with no change fees since my trip to Toronto would likely be extended. Indeed, when I went to change my flight home to a later date, I was told the Fare Difference would cost an additional $550. So much for no change fees lol! While I had the agent on the line, I hopped over to Kayak, searched for new flights on the date in question, and saw a one-way ticket that got me home for only $355. So I got reimbursed about $450for the unused half of my roundtrip and bought a new ticket for $355. What good is a full fare / no change fee ticket if they screw you with "fare difference" BS. I'm still flying home on Porter Airlines but they just lost a hundred bucks with their stupid shenanigans.

4.0 OkayJeff, Jul 2026
YYZ - SFO
Read more Porter Airlines reviews

Look, I understand that Kayak doesn't know I cancelled my flight on Porter. So I didn't actually fly yesterday. My main disappointment is with Porter ticket fare policies, and maybe you can pass this on to them: At my employer's request, I had booked a full fare ticket with no change fees since my trip to Toronto would likely be extended. Indeed, when I went to change my flight home to a later date, I was told the Fare Difference would cost an additional $550. So much for no change fees lol! While I had the agent on the line, I hopped over to Kayak, searched for new flights on the date in question, and saw a one-way ticket that got me home for only $355. So I got reimbursed about $450for the unused half of my roundtrip and bought a new ticket for $355. What good is a full fare / no change fee ticket if they screw you with "fare difference" BS. I'm still flying home on Porter Airlines but they just lost a hundred bucks with their stupid shenanigans.

I flew with Porter yesterday and overall had a positive experience. The flight was delayed, but the airline did a good job keeping passengers informed with frequent updates throughout the process. My biggest challenge was actually in Terminal 3, where the speaker system wasn’t very clear. It was often difficult to hear the announcements, which made it harder to follow updates at the gate. On board, the experience improved significantly. The aircraft felt very new and well maintained, and the seats were surprisingly comfortable for a short-haul flight. One of the flight attendants seemed a little disengaged, but the other was excellent—friendly, professional, and a pleasure to interact with. Despite the delay, the comfortable aircraft, clear communication from Porter, and positive onboard service made for a good overall experience.

The staff was amazing. Best service I’ve had on an aircraft in a long time. Was not particularly happy with the food. Flight was at 10:50 and left home too early for breakfast and wasn’t able to purchase food at airport and felt for sure I could get some breakfast to buy on airplane. Nope as food was served around 11:30 and only one choice left (I was at 22C) so ordered the chicken dish thinking I’m getting a hot meal but cold chicken with rice and carrots etc. I was looking forward to a croissant sandwich and a hot cup of tea. The FA was kind to explain they were serving dinner at that time. She was lovely Other than the disappointment with the food the staff was amazing. On my return flight I will make sure to eat and take some food with me so I’m not hungry or disappointed. This was my second time ever flying Porter and will consider checking them when I next come to visit my daughter. Have to say it again best crew I’ve ever experienced on a flight and I travel quite a bit. Thanks.

I didn’t receive any help when they messed up and wasn’t honest and the supervisor did absolutely nothing to help me so I had to buy another ticket at $537

It was okay. Had a thing with the front desk, she had me repack my suitcases to have them be under the weight restrictions, but then the other one was overweight, she argued with me about it when there were tons of people in line. Wasn’t great.

The check-in staff, boarding staff, and flight crew were all very friendly. Really miss the Porter lounge in Ottawa.

Due to mechanical problems it was delayed causing problems the actual flight. Was fune

Delayed by 2.5 hours. This happened previously on my flight from YOW to YVR on Dec. 26.2023. This is a terrible airline. The reason was there was lack of ground crew. This is a known event. AVOID PORTER AIRLINES IF YOU CAN. There is a reason half the plane was empty.

Flight Ottawa to Toronto canceled and no crew was available to direct me on what to do. I opened a file and I wait to be compensated.

Porter, like most airlines, need to improve their baggage policies. In reality, there are no longer 'cheap flights' because passengers pay exorbitant baggage fees.

Very kind crew. Vegetarian food better than usual. Prompt take off. Entertainment worked well. Could always do with more room!

The dinner was bland and boring, but the economy seats were surprisingly comfortable. The flight was very packed.

Great crew and entertaining Captain. Seats were not what we had expected based on my booking but things worked out in the end. Of course, like all airlines these days not enough leg or elbow room.

The entertainment system was down; food by purchase only; several people did not receive their luggage. No one answers at the local office or online about the luggage.

This has been the worst experience I’ve ever had. Basically, I lost my round-trip tickets because one of my last names was missing, and you didn’t allow me to correct it. I had to purchase a full ticket again. Once I get home, I will start legal proceedings against you.

It’s ok just the boarding point is far too far

They are a sister company with Air Transat and the two companies do not work well together. If you have any issues the two companies will blame each other and you will miss your flights. The help line does not help

Flight delayed any hour and couple of big gate changes

We were unable to land in Liberia. It was not the airline’s fault, but we had to be diverted to SJO.

I sat in the club. The seeds were fantastic. The meal was great and Entertainment was good. The crew was fantastic. I recommend it to everybody.

I flew Aer Lingus Business class for the first time. Having flown economy a few times, I was familiar with the airline, and happy enough with economy. I’ve certainly been in nicer economy airlines before, but Aer Lingus is usually very reasonable, and I find the staff to be kind and have an Irish sense of humor and accommodation. The business experience was good, in that you got superior service to the back, lay down seats, better food and drinks, and more attentive service. However, the plane was a bit older, the WiFi was slow(not Starlink) and the pods were too close to one another for privacy, or function. When the Oder lady to the left of me fell asleep(fully reclined) there was no way for me to escape without having to wake her and put her seat all the way up. That lead to me being stuck with luggage I couldn’t put away in a cramped(for business) space, and no way to use the restroom for almost the whole 8 1/2 hour trip. I ended up trying to sleep with a large backpack blocking my feet. The food was good for plane food, but not great. The drinks were great, shame I couldn’t have had more, but I’d have peed myself. I love a window, but next time maybe an isle seat. Overall, the experience was good, not great, but an expensive good experience during which I got zero sleep. I’d do it again, but it’d have to be a deal.

The direct flight was a superb idea; please continue. The seats were less than comfortable for such a long flight.

Faster charging ports but that’s a super minor complaint.

Check in was excellent. Signs were easily understood and everyone was helpful. Everyone we spoke to was helpful. The crew was excellent.

I didn’t fly because the airline canceled my tickets on the last minute..

The check in and boarding process was smooth, and the flight was fine.

Because of problem with aer Lingus, I couldn’t check in until just before the flight and was stuck in the middle seat

There was no flight. I booked a flight from Toronto to Bordeaux with a stopover in Dublin. I arrived in Dublin and the flight number I had didn't exist and the flight going to Bordeaux I wasn't on. I had to book a new flight with a different airline for later in the day and pay out of pocket.

They lost my baggage on my connecting flight and we’re an hour late so I nearly missed it

.Ealing could have been better but no complaints on everything else

The flight didn’t happen because they apparently lost my check in and wouldn’t let me board.

Access to movies was rather confusing. Apart from that, I have no complaints.

As someone who never flies WestJet unless there is no other viable option I have to give this crew credit where credit is due. Extremely well done everyone.

Flight left on time. The crew was very friendly. I had to buy a proper meal. Small cookie and a drink just doesn’t cut it for a 4.5 hours flight.

Experience was good, the wifi hook up is somewhat tough

I will not be flying with westjet again. I was uncomfortable in my seat. The position made my back hurt so bad. My wife was able to fit the seatbelt around her with out an extension but was unable to put the tray table down or fit in the seat for that matter. Our bag was smashed and I spent two hours trying to fill out the application for a damaged bag before I gave up. The 80 photos I took would not work and nothing telling me the format to upload them as.. I made the mistake of unpacking the bag before taking photos so no claim for me. Next trip to Canada I will have to use air Canada.

Good value, minor delay due to waiting for inbound plane but they gave accurate information about wait time. Able to switch to a seat by my husband thanks to a kind flight attendant

Flight was re-scheduled for the next day. No voucher for a hotel offered. Boarding was delayed by almost 1 hour. No free meal or even water was offered on board. When tried to purchase a coke, was denied because they didn’t accept coins less than 1 euro denominations. A young male flight attendant was especially rude and unhelpful.

Not a tonne of food for purchase items for early morning.

Long delay die to pet mix up. Also bags took forever to get to carousel

The flight was good. My luggage didn’t land with me when I arrived in Columbus. So grateful I was able to get my luggage back within the 2 hours😍👍.

It was out first time flying Air Canada and it was ok, comfort-wise. I hope airlines are able to get a quiet room installed for young children flying. Screaming and crying the whole time in business class is quite unfortunate. That was the only thing that really messed up the experience.

Staff were very friendly. Plane left on time and arrived on time.

Air traffic delay meant boarding started, then plane was evacuated and passengers sent back to the terminal for 1 hour. Very little information shared.

The crew was amazing! I was a bit surprised and disappointed that there was not wifi available for personal use. The only thing I would change would be the seat cushions. They are not comfortable at all for long flights.

It was a very small plane and was ok. No food or entertainment so there should be an option for NA.

We were happy with the service and cost of checking a bag

Flying with Air Canada is still better than the discount airlines like Flair. The seats are more comfortable and the on-board entertainment is better, with each seat having a built in screen and lots of content to watch. Onboard WIFI is also great to have, as well as plugs for charging. I think passengers in general are getting better at not bringing too much luggage onboard, and Air Canada is better at managing this without customers feeling like they are being taken advantage of with extra fees. I have travelled on different airlines and all seem to be loading faster, with fewer people bringing both a carry on and a personal item. Now I just bring one item and it fits under the seat so I don't need to worry about finding a place in the overhead bins. Overall, across the industry, asking customers to pay for carry on baggage is fair because it allows customers to only pay for what they need, and it helps to keep the planes on time. Kudos to Air Canada for its approach - the desired result is achieved without customers feeling that they are being surprised and caught with unexpected extra fees.

Due to the strike by AC flight attendants, my flight was cancelled. Very disappointing! A refund is being processed. This was not a Kayak issue. I will be sure to come back to Kayak in the future.

Staff was very courteous and kept things organized. We will definitely use Air Canada for further travel

Everything you need to know for your flight from Ottawa to Ireland

Information on your arrival and departure airports