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Cheap flights from Ireland to Ottawa from £391

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 10/1. Fares are subject to change and may not be available on all flights or dates of travel.
DUB — YOW
1 Jan — 8 Jan1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Ireland to Ottawa

Keep the following information in mind while searching for Ireland to Ottawa flight deals. Data was last updated 2 December 2025.

Round-trip from

£410

One-way from

£391

Popular in

August

Cheapest in

September

Average price

£550
Lufthansa
  • Lufthansa
  • 16/1-19/1
  • 4 total stops
  • 36h 58m total
  • Ireland to Ottawa
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Lufthansa
  • Lufthansa
  • 10/1
  • 1 total stop
  • 13h 18m total
  • Ireland to Ottawa
Search Deals
Highest demand for flights based on searches. 3% potential increase in price (£12 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 December 2025
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Find flight deals from Ireland to Ottawa

Enter your travel dates to find the best prices.

Cheapest flights from Ireland to Ottawa
Explore the most affordable flight options available from Ireland to Ottawa. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 2 December 2025.

Tue 2/1209:30DUB - YOW
2 stops14h 25mUnited Airlines
Tue 9/1215:10YOW - DUB
2 stops14h 10mUnited Airlines
Deal found 1/12£597
Mon 29/1209:30DUB - YOW
1 stop11h 57mUnited Airlines
Mon 5/116:15YOW - DUB
2 stops34h 55mUnited Airlines
Deal found 1/12£602
Tue 23/1212:05DUB - YOW
1 stop16h 49mUnited Airlines
Sat 3/105:00YOW - DUB
2 stops22h 10mUnited Airlines
Deal found 30/11£606
Sun 21/1213:35DUB - YOW
2 stops29h 55mUnited Airlines
Sun 4/117:59YOW - DUB
1 stop10h 56mUnited Airlines
Deal found 30/11£676

Cheapflights Fare Finder

 
Customise your flight search to find flights from Ireland to Ottawa that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 858,174 searches. Data last updated 2 December 2025.
Use the filters below to find and compare flights from Ireland to Ottawa that are best for you.

Fly from

Ireland

Fly to

Ottawa

Route

Depart

Return

Price

DublinOttawa

DUB - YOW

DUBYOW

Dublin

Fri 16/1

05:10-23:08

2 stops22h 58m

Ottawa

Mon 19/1

16:00-11:00

2 stops14h 00m

£410

DublinOttawa

DUB - YOW

DUBYOW

Dublin

Mon 29/12

09:30-16:27

1 stop11h 57m

Ottawa

Mon 5/1

16:15-08:10

2 stops34h 55m

£602

DublinOttawa

DUB - YOW

DUBYOW

Dublin

Tue 23/12

12:05-23:54

1 stop16h 49m

Ottawa

Sat 3/1

05:00-08:10

2 stops22h 10m

£606

DublinOttawa

DUB - YOW

DUBYOW

Dublin

Sun 21/12

13:35-14:30

2 stops29h 55m

Ottawa

Sun 4/1

17:59-09:55

1 stop10h 56m

£676

DublinOttawa

DUB - YOW

DUBYOW

Dublin

Sun 11/1

09:00-18:38

1 stop14h 38m

£391

DublinOttawa

DUB - YOW

DUBYOW

Dublin

Sat 10/1

09:00-17:18

1 stop13h 18m

£391

DublinOttawa

DUB - YOW

DUBYOW

Dublin

Fri 2/1

12:05-17:18

2 stops34h 13m

£582

DublinOttawa

DUB - YOW

DUBYOW

Dublin

Sat 3/1

12:05-17:18

2 stops34h 13m

£705

DublinOttawa

DUB - YOW

DUBYOW

Dublin

Sun 4/1

09:30-23:54

2 stops19h 24m

£705

Flights are sorted by cheapest return flights first.

Deals found on 30/11

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
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

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, February is the cheapest month in which you can book a flight from Ireland to Ottawa (average of £376). Flying from Ireland to Ottawa in January is currently the most expensive (average of £493). 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.

Reviews of airlines servicing Ottawa

Get insights into the airlines that provide service to Ottawa. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Ottawa. Reviews last updated 2 December 2025.
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
479 reviews
Check prices

Boarding

7.9

Comfort

7.4

Crew

8.4

Entertainment

7.1

Food

6.8

Overall

7.8

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
479 reviews
Air Transat
7.8
Good
479 reviews
Check prices

Boarding

7.9

Comfort

7.4

Crew

8.4

Entertainment

7.1

Food

6.8

Overall

7.8

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
10,492 reviews
Air Transat
7.8
Good
479 reviews
Check prices

Boarding

7.9

Comfort

7.4

Crew

8.4

Entertainment

7.1

Food

6.8

Overall

7.8

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

Find useful and relevant information for your journey from Ireland to Ottawa. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • 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 Lufthansa fly from Ireland to Ottawa in about 22h 58m. 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, February is the cheapest month in which you can book a flight from Ireland to Ottawa (average of £376). Flying from Ireland to Ottawa in January is currently the most expensive (average of £493). 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
Smiths Falls

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See prices for flight routes from nearby airports that may be better suited for you.
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Top 2 airlines flying from Ireland to Ottawa

Discover the top 2 airlines that operate flights from Ireland to Ottawa. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 858,174 searches. Data last updated 2 December 2025.
AirlineCheapestAverageFlexibilityOn-time
Air TransatCheapest£378Average£495FlexibilityNo cancel feeOn-time50%
Search Air Transat flights
Air CanadaCheapest£447Average£504FlexibilityNo cancel feeOn-time67%
Search Air Canada flights

Fly with Cheapflights

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How does Cheapflights help users find flights from Ireland to Ottawa?

900+ travel sites are searched through when a user searches for a flight using Cheapflights. From the search interface, users can use filters to choose airlines, airports, flight times, cabin classes and more to their preference. Book your flight to Ottawa from Ireland today with Cheapflights!

Why should you use Cheapflights to find cheap flight tickets from Ireland to Ottawa?

It’s simple! Cheapflights, which is free to use for everyone, saves millions of users time and money every year by helping them find the cheapest and most suitable flights from Ireland to Ottawa.

Can Cheapflights find flights from Ireland to Ottawa with no change fees?

Users can book flights with no change fees policies with our dedicated filters. Book flights from Ireland to Ottawa flexibly with Cheapflights today.

Can Cheapflights notify me if prices for flights from Ireland to Ottawa become cheaper?

Of course! You can now track prices for flights from Ireland to Ottawa and get an alert from Cheapflights when they change. Have a valid email address ready and click the bell icon next to the flight deals above to set up your price alerts.

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