YOW

€164 Find Cheap Flights to Ottawa

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight to Ottawa departing on 17/9. 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

KAYAK searches hundreds of travel sites at once for deals on flights to Ottawa

 
These are the airlines KAYAK users have selected most often from within our search results for flights to Ottawa, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results for flights to Ottawa, as well as popular online travel agencies
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Flight Deals
Booking Insights
Flight Deals

Cheap Flights to Ottawa

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for return flights to Ottawa 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 return flight deals to Ottawa

Sat, 27 Sep - Sat, 11 Oct
WestJet Logo
11:30 - 00:22DUB-YOW
17h 52m1 stop
WestJet Logo
05:55 - 10:00YOW-DUB
23h 05m1 stop
€393WestJet
Find Deal
Wed, 10 Sep - Wed, 17 Sep
 Logo
12:15 - 00:22DUB-YOW
17h 07m2 stops
 Logo
05:55 - 13:15YOW-DUB
26h 20m2 stops
€421
Find Deal
Fri, 12 Sep - Sun, 28 Sep
Air Transat Logo
13:15 - 21:00DUB-YOW
12h 45m1 stop
Air Transat Logo
08:35 - 11:30YOW-DUB
21h 55m1 stop
€459Air Transat
Find Deal
Wed, 10 Sep - Wed, 17 Sep
Air Canada Logo
09:50 - 17:04DUB-YOW
12h 14m1 stop
Air Canada Logo
18:40 - 07:45YOW-DUB
8h 05m1 stop
€499Air Canada
Find Deal
Wed, 10 Sep - Wed, 17 Sep
Air Canada Logo
09:50 - 22:04DUB-YOW
17h 14m2 stops
Air Canada Logo
18:40 - 07:45YOW-DUB
8h 05m1 stop
€511Air Canada
Find Deal
Wed, 10 Sep - Wed, 17 Sep
Lufthansa Logo
09:00 - 00:19DUB-YOW
20h 19m2 stops
Lufthansa Logo
17:55 - 08:15YOW-DUB
9h 20m1 stop
€519Lufthansa
Find Deal
Wed, 10 Sep - Wed, 17 Sep
Lufthansa Logo
09:50 - 17:04DUB-YOW
12h 14m1 stop
Lufthansa Logo
17:55 - 08:15YOW-DUB
9h 20m1 stop
€523Lufthansa
Find Deal
Sun, 28 Sep - Sun, 5 Oct
Air Transat Logo
13:15 - 21:10DUB-YOW
12h 55m1 stop
Air Transat Logo
10:45 - 11:30YOW-DUB
19h 45m1 stop
€529Air Transat
Find Deal
Wed, 10 Sep - Wed, 17 Sep
United Airlines Logo
12:30 - 22:05DUB-YOW
14h 35m2 stops
United Airlines Logo
12:30 - 07:10YOW-DUB
13h 40m2 stops
€573United Airlines
Find Deal
Sat, 27 Sep - Sat, 11 Oct
United Airlines Logo
08:50 - 16:43DUB-YOW
12h 53m2 stops
United Airlines Logo
14:45 - 07:20YOW-DUB
11h 35m2 stops
€574United Airlines
Find Deal
Booking Insights

KAYAK's insights & trends for flights to Ottawa

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

What is the cheapest month to fly to Ottawa?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for flights to Ottawa, 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 to Ottawa is September, where tickets cost €517 on average for return flights. On the other hand, the most expensive months are August and October, where the average cost of tickets from Ireland is €714 and €691 respectively. For one-way flights, the best month to travel is September with an average price of €517.

Good to know – Book Cheap Ottawa Plane Tickets

Low seasonNovember
Cheapest flight€164
Best time to beat the crowds (7% less expensive on average)
Most popular time to fly (2% more expensive on average)
Flight from Dublin to Ottawa

When to book flights to Ottawa

Are your dates flexible? Find out the best times to travel to Ottawa based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated return price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or returns with a duration up to 40 days. The information is for flights to Ottawa based on your location. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs - booking Ottawa flights

  • How far is Ottawa Airport from central Ottawa?

    You’ll need to travel 11 km to reach the Ottawa city centre from Ottawa Airport.

  • What is the name of Ottawa’s airport?

    All flights to Ottawa land at Ottawa Airport. The airport code is YOW,and it can also be referred to as Macdonald–Cartier Intl, Ottawa, or Ottawa Macdonald-Cartier Intl.

  • What is the cheapest day to fly to Ottawa?

    Based on KAYAK data, the cheapest day to fly to Ottawa is Thursday where round-trip tickets can be as cheap as €572. On the other hand, the most expensive day to fly is Sunday, where round-trip prices are €787 on average.

  • How does KAYAK find such low prices on flights to Ottawa?

    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 to Ottawa.

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

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

  • What is the Hacker Fare option on flights to Ottawa?

    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 Ottawa 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 to Ottawa?

    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 Ottawa up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

  • What is the cheapest time of day to fly to Ottawa?

    The cheapest time of day to fly to Ottawa is generally in the afternoon, when round-trip flights cost €696 on average. The most expensive time of day to fly to Ottawa is generally in the morning, which is peak travel time and where the average cost of a ticket is €719.

Top tips for finding cheap flights to Ottawa

  • Enter your preferred departure airport and travel dates into the search form above to unlock the latest Ottawa flight deals.

Prefer to fly direct to Ottawa?

 
Nonstop data is based off flight results for the next 60 days. Find direct flights from all airlines flying nonstop to Ottawa.
Find which airlines fly direct to Ottawa Airport, which days they fly and book direct flights.

Direct departures

Ireland to Ottawa

Monday

ANA, Aegean Airlines, Aer Lingus, +34 more

ANA, Aegean Airlines, +35 more

Tuesday

ANA, Aer Lingus, Aeromexico, +33 more

ANA, Aer Lingus, +34 more

Wednesday

ANA, Aegean Airlines, Aer Lingus, +34 more

ANA, Aegean Airlines, +35 more

Thursday

ANA, Aegean Airlines, Aer Lingus, +34 more

ANA, Aegean Airlines, +35 more

Friday

ANA, Aer Lingus, Aeromexico, +33 more

ANA, Aer Lingus, +34 more

Saturday

ANA, Aegean Airlines, Aer Lingus, +34 more

ANA, Aegean Airlines, +35 more

Sunday

ANA, Aer Lingus, Aeromexico, +32 more

ANA, Aer Lingus, +33 more

See more direct flights

Direct returns

Ottawa to Ireland

Monday

ANA, Aegean Airlines, Aer Lingus, +34 more

ANA, Aegean Airlines, +35 more

Tuesday

ANA, Aer Lingus, Aeromexico, +33 more

ANA, Aer Lingus, +34 more

Wednesday

ANA, Aegean Airlines, Aer Lingus, +34 more

ANA, Aegean Airlines, +35 more

Thursday

ANA, Aegean Airlines, Aer Lingus, +34 more

ANA, Aegean Airlines, +35 more

Friday

ANA, Aer Lingus, Aeromexico, +33 more

ANA, Aer Lingus, +34 more

Saturday

ANA, Aegean Airlines, Aer Lingus, +34 more

ANA, Aegean Airlines, +35 more

Sunday

ANA, Aer Lingus, Aeromexico, +32 more

ANA, Aer Lingus, +33 more

See more direct flights

Reviews of the top airlines flying to Ottawa

 
See real verified KAYAK customer reviews for airlines flying to Ottawa. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline from Ireland to Ottawa. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with to Ottawa? 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.
7.1
Air CanadaOverall score based on 9956 reviews
6.3Food
7.8Crew
7.3Boarding
7.1Comfort
6.8Entertainment
Airline reviews

Refreshments and Air Hostess was good. Issues with customs in Toronto caused flight to depart and left me behind twice. Vouchers for delayed flight needs to increase.

8.0 ExcellentDezerie, Aug 2025LGA - YYZ
Read more Air Canada reviews

Refreshments and Air Hostess was good. Issues with customs in Toronto caused flight to depart and left me behind twice. Vouchers for delayed flight needs to increase.

They were very attentive, polite, professional and great customer service skills.

Bad experience. My checked bag was lost during this direct flight….how does that even happen?

Long wait to check in at the priority counter in Toronto

I had no communication, receipt etc from Air Canada until hours before flight

Customer service excellent. Food was poor. I received my luggage open with missing items.

They cancelled my return flight due to mechanical problems checked me on a flight a day late . Did not inform me kept sending me the old itinerary by email . I called and rebooked myself on an earlier flight still would not send me the right itinerary kept sending me the old itinerary The new airline charged me 150 $ for the first checked in luggage Aircanda was $75 . No effort to reconcile this or any apologies for anything . Sorry flight canceled… you are on your own Air Canada is worse than a budget airline Will never fly them again ..

Staff was not frankly. I asked about what beverages you have and air hostess told me like before so very rude answer.

I liked that the plane landed safely. I didn't like that the food and leg room is horrible.

Business class was not worth the extra charge. Overpriced for slightly larger seat. Nothing special. Small older plane.

It was my first transatlantic flight with Aer Lingus. Very enjoyable. Thank you for making international travel enjoyable again.

The space between seats was reduced even further. Could not even open the tray table fully and got compressed the moment the front guy reclined. For a long haul flight it was extremely uncomfortable.

Not satisfying due to loss Luguage for 4days. Damage Luguage that had no way to fill up a report for and me as a client to spend more money and time to replace it. Thank you for soliciting my opinion, but it was unfortunately a very disappointing experience. Stephanie Zvi

Delightful flight, ahead of time with a super crew, thanks

I wish Aer Lingus offered free wifi and had power outlets at the seats. Overall, the flight was good. Seat back entertainment had some interesting options. Food and snack options were mediocre at best. I enjoyed the canned red wine.

In business class overhead bins were minuscule. Had to use cabin staff to find a place for my carry-on bag. Boarding process was shambolic, as “passengers who needed assistance in boarding” absorbed an excessive amount of time and attention that Aer Lingus was apparently unprepared for.

Aer Lingus was fabulous.nhowever, Aiirfare Assist who Kayak routes me to to purchase tickets for m was awful. They messed up my reservation so bad that after about six hours on the phone with them over the week before departure, I had been choice but to show up at the airport. The Aer Lingus staff were amazing and got it sorted out but I would recommend not using Airfare Assist.

I had a great experience. I wasn’t sure what to expect but the crew helped me check my bags and made sure I got in the correct line to board. It was a bit of a walk to my gate so arrive early. I would recommend securing a flight that includes checking in your bag if you remotely think your baggage is over 10kg/22lbs. Be safe and upgrade unless you are carrying a backpack or weekend type baggage.

Dublin to Boston was decent. Food and entertainment was included and that was expected for the rate paid.

No entertained. food and beverages were not complimentary. they lost my checked luggage which made my 10 day vacation unpleasant.

Everything you need to know for your flight to Ottawa

Information on the airport you'll fly into in Ottawa

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