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Cheap flights from Ireland to Ottawa from £451

DUB — YOW
28 Sep — 5 Oct1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Ireland to Ottawa

Enter your travel dates to find the best prices.

Cheapest flights from Ireland to Ottawa

Sat 10/1018:25 -
1 stop23h 15m
Sat 17/1018:25 -
1 stop9h 55m
Deal found 27/8£451
Thu 10/908:50 -
2 stops12h 48m
Sat 26/919:30 -
1 stop10h 10m
Deal found 28/8£604
Mon 12/1009:30 -
1 stop12h 08m
Mon 19/1018:01 -
1 stop12h 09m
Deal found 28/8£605
Sun 11/1008:50 -
2 stops12h 48m
Sun 18/1015:10 -
2 stops14h 30m
Deal found 27/8£606
Fri 11/913:35 -
1 stop14h 00m
Sun 27/915:10 -
1 stop11h 20m
Deal found 24/8£607
Fri 11/905:55 -
2 stops14h 05m
Sun 27/917:25 -
2 stops14h 15m
Deal found 25/8£674
Fri 11/913:15 -
2 stops16h 05m
Sun 27/906:55 -
2 stops21h 20m
Deal found 24/8£872
Thu 10/910:00 -
2 stops19h 20m
Sat 26/906:55 -
2 stops21h 20m
Deal found 28/8£884

Find flight deals from Ireland to Ottawa

Round-trip from

£451

Popular in

June

Cheapest in

March

Average price

£506
WestJet
  • WestJet
  • 10/10-17/10
  • 2 total stops
  • 33h 10m total
  • Ireland to Ottawa
Search Deals
Highest demand for flights based on searches. 6% potential increase in price (£25 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease (£8 potential savings vs. average return price).
Search Deals
Average for round-trip flights in August 2026
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Cheapflights Fare Finder

 
Use the filters below to find and compare flights from Ireland to Ottawa that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

DublinOttawa

DUB Dublin - YOW Ottawa

DUBYOW

Dublin

Sat 10/10

21:15-17:35

3 stops25h 20m

Ottawa

Sat 17/10

14:00-10:50

1 stop15h 50m

£475
Fastest return journey

DublinOttawa

DUB Dublin - YOW Ottawa

DUBYOW

Dublin

Thu 10/9

08:50-16:38

2 stops12h 48m

Ottawa

Sat 26/9

19:30-10:40

1 stop10h 10m

£604

DublinOttawa

DUB Dublin - YOW Ottawa

DUBYOW

Dublin

Mon 12/10

13:35-23:54

2 stops15h 19m

Ottawa

Mon 19/10

15:10-11:10

1 stop15h 00m

£605

DublinOttawa

DUB Dublin - YOW Ottawa

DUBYOW

Dublin

Sun 11/10

09:30-18:55

2 stops14h 25m

Ottawa

Sun 18/10

18:01-11:10

1 stop12h 09m

£606

DublinOttawa

DUB Dublin - YOW Ottawa

DUBYOW

Dublin

Fri 11/9

05:55-15:00

2 stops14h 05m

Ottawa

Sun 27/9

17:25-12:40

2 stops14h 15m

£674

DublinOttawa

DUB Dublin - YOW Ottawa

DUBYOW

Dublin

Fri 11/9

13:15-00:20

2 stops16h 05m

Ottawa

Sun 27/9

06:55-09:15

2 stops21h 20m

£872

DublinOttawa

DUB Dublin - YOW Ottawa

DUBYOW

Dublin

Thu 10/9

10:00-00:20

2 stops19h 20m

Ottawa

Sat 26/9

06:55-09:15

2 stops21h 20m

£884

Flights are sorted by cheapest return flights first.

Deals found on 27/8

Sorted by cheapest first

Best time to book a flight from Ireland to Ottawa

Have a flexible travel schedule? Discover the best time to fly to Ottawa from Ireland with our price prediction graph.
Estimated return price

Cheapflights Insights

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

What is the cheapest month to book a flight from Ireland to Ottawa?

Currently, March is the cheapest month in which you can book a flight from Ireland to Ottawa (average of £411). Flying from Ireland to Ottawa in June is currently the most expensive (average of £647). 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.

How often are flights from Ireland to Ottawa delayed?

About 100% of weekly flights between Ireland and Ottawa have experienced delays in the past year, with the average delay time being 104 minutes.

What is the most punctual flight time for Ireland to Ottawa flights?

Historically, flights departing in the early afternoon are less likely to be delayed, whereas flights leaving in the early afternoon tend to experience delays more often.

What day of the week experiences the fewest flight delays on this route?

Wednesday tends to have the lowest number of delays on this route, whereas Wednesday has historically faced a higher average of delays compared to other days of the week.

Reviews of airlines servicing Ottawa

Read reviews from past customers who have flown with Air Transat and Air Canada from Ireland to Ottawa. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Air Transat
7.8
Good
576 reviews
Check prices

Crew

8.5

Entertainment

7.1

Comfort

7.3

Overall

7.8

Food

6.8

Boarding

8.0

Reviews

1 / 20
10.0
Excellent

Anonymous,Sept 2025

YYZ - YUL

Easy, fast onboarding, very friendly staff. Seats were very narrow, OK for me but we were elbow to elbow with both neighbours of small size. The seat width should be indicated at the time of booking to prevent an uncomfortable situation with oversized travellers.
Air Transat
7.8
Good
576 reviews
Air Transat
7.8
Good
576 reviews
Check prices

Crew

8.5

Entertainment

7.1

Comfort

7.3

Overall

7.8

Food

6.8

Boarding

8.0

Reviews

1 / 20
10.0
Excellent

Anonymous,Sept 2025

YYZ - YUL

Easy, fast onboarding, very friendly staff. Seats were very narrow, OK for me but we were elbow to elbow with both neighbours of small size. The seat width should be indicated at the time of booking to prevent an uncomfortable situation with oversized travellers.
Air Canada
7.1
Good
11,550 reviews
Air Transat
7.8
Good
576 reviews
Check prices

Crew

8.5

Entertainment

7.1

Comfort

7.3

Overall

7.8

Food

6.8

Boarding

8.0

Reviews

1 / 20
10.0
Excellent

Anonymous,Sept 2025

YYZ - YUL

Easy, fast onboarding, very friendly staff. Seats were very narrow, OK for me but we were elbow to elbow with both neighbours of small size. The seat width should be indicated at the time of booking to prevent an uncomfortable situation with oversized travellers.

Related info for your journey

  • What airport do you fly into for flights to Ottawa from Ireland?

    Located just 6.6 mi from the city center, Ottawa (YOW) is the airport most travelers will use when flying to Ottawa from Ireland.

  • How long is the flight from Ireland to Ottawa?

    Airlines like United Airlines fly from Ireland to Ottawa in about 12h 48m. The time it takes to get you to your destination can typically vary by up to . Ireland and Ottawa are separated by a distance of 3044 mi.

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

    Yes. In addition to deals on Ireland to Ottawa flights, Cheapflights offers holiday packages that include both flights and hotel.

  • How can I find direct flights from Ireland to Ottawa?

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

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

    Yes. Cheapflights offers flight deals from Ireland to Ottawa 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 Ireland to Ottawa?

    Currently, March is the cheapest month in which you can book a flight from Ireland to Ottawa (average of £411). Flying from Ireland to Ottawa in June is currently the most expensive (average of £647). 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

Travelling to a place near Ottawa?

Book flights to Ottawa if you plan to visit one of these locations
Gatineau
Brockville
Smiths Falls

Browse thousands of different options on Cheapflights for your next trip

Alternative routes for Ireland to Ottawa

Heathrow to Pearson Intl flights
Gatwick to Pearson Intl flights
Heathrow to Toronto Island flights
Heathrow to Pierre Elliott Trudeau Intl flights
London City to Pearson Intl flights
Stansted to Pearson Intl flights
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Manchester to Pearson Intl flights
Gatwick to Toronto Island flights
London City to Pierre Elliott Trudeau Intl flights
Stansted to Pierre Elliott Trudeau Intl flights
Gatwick to Pierre Elliott Trudeau Intl flights
Luton to Pierre Elliott Trudeau Intl flights
Southend to Pearson Intl flights
Heathrow to Ottawa flights
Manchester to Toronto Island flights
Edinburgh to Pearson Intl flights
Dublin to Pearson Intl flights
Glasgow Intl to Pearson Intl flights
London City to Ottawa flights
Edinburgh to Toronto Island flights
Birmingham to Pearson Intl flights
Birmingham to Toronto Island flights
Gatwick to Ottawa flights
Manchester to Pierre Elliott Trudeau Intl flights
Manchester to Ottawa flights
Heathrow to London flights
Stansted to Ottawa flights
Glasgow Intl to Pierre Elliott Trudeau Intl flights
Newcastle upon Tyne to Pearson Intl flights
Gatwick to London flights
Stansted to London flights
Leeds to Pearson Intl flights
Bristol to Pearson Intl flights
Birmingham to Pierre Elliott Trudeau Intl flights
Southampton to Pearson Intl flights
Heathrow to Windsor flights
Heathrow to Thunder Bay flights
Edinburgh to Pierre Elliott Trudeau Intl flights
Istanbul to Pearson Intl flights
Liverpool to Pearson Intl flights
Newcastle upon Tyne to Pierre Elliott Trudeau Intl flights
Dublin to Toronto Island flights
Glasgow Intl to Ottawa flights

Top 2 airlines flying from Ireland to Ottawa

AirlineCheapestAverageFlexibilityOn-time
Air CanadaCheapest£450Average£519FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
Air TransatCheapest£456Average£477FlexibilityNo cancel feeOn-time50%
Search Air Transat flights

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