Find flights
When to book
Airlines
FAQs

Cheap flights from Ottawa to Ireland from C$ 401

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 30/9. Fares are subject to change and may not be available on all flights or dates of travel.
YOW — DUB
11 Sep — 18 Sep1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Ottawa to Ireland

Enter your travel dates to find the best prices.

Cheapest flights from Ottawa to Ireland
Explore the most affordable flight options available from Ottawa to Ireland. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 12 August 2026.

Thu 24/96:25 p.m. -
1 stop9h 55m
Thu 1/1010:00 a.m. -
2 stops19h 20m
Deal found 9/8C$ 747
Thu 17/96:25 p.m. -
1 stop9h 55m
Thu 24/99:40 a.m. -
2 stops36h 55m
Deal found 8/8C$ 797
Mon 7/94:00 p.m. -
2 stops24h 20m
Wed 16/99:35 a.m. -
2 stops19h 50m
Deal found 10/8C$ 801
Mon 7/96:55 a.m. -
1 stop21h 25m
Wed 16/910:40 a.m. -
1 stop11h 55m
Deal found 11/8C$ 802
Fri 25/97:40 p.m. -
1 stop16h 40m
Fri 2/104:55 p.m. -
2 stops36h 30m
Deal found 10/8C$ 884
Fri 4/97:40 p.m. -
1 stop32h 05m
Thu 24/99:00 p.m. -
1 stop20h 40m
Deal found 10/8C$ 898
Thu 24/94:00 p.m. -
2 stops23h 50m
Thu 1/109:55 a.m. -
1 stop31h 45m
Deal found 10/8C$ 905
Wed 2/98:40 a.m. -
2 stops24h 10m
Sat 26/98:15 p.m. -
1 stop21h 25m
Deal found 10/8C$ 911
Fri 4/97:40 p.m. -
1 stop32h 05m
Mon 28/98:55 p.m. -
2 stops28h 05m
Deal found 10/8C$ 917
Fri 4/97:40 p.m. -
1 stop32h 05m
Tue 29/98:10 a.m. -
2 stops16h 50m
Deal found 10/8C$ 921
Fri 4/97:40 p.m. -
1 stop32h 05m
Sat 26/98:00 a.m. -
2 stops17h 00m
Deal found 10/8C$ 953
Fri 4/97:40 p.m. -
1 stop32h 05m
Sun 27/91:25 p.m. -
2 stops35h 35m
Deal found 10/8C$ 962

Find flight deals from Ottawa to Ireland

Keep the following information in mind while searching for Ottawa to Ireland flight deals. Data was last updated 12 August 2026.

Round-trip from

C$ 747

One-way from

C$ 401

Popular in

February

Cheapest in

July

Average price

C$ 896
WestJet
  • WestJet
  • 24/9-1/10
  • 3 total stops
  • 29h 15m total
  • Ottawa to Ireland
Search Deals
30/9
  • 30/9
  • 3 total stops
  • 47h 05m total
  • Ottawa to Ireland
Search Deals
Highest demand for flights based on searches. 15% potential increase in price (C$ 250 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease (C$ 41 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in August 2026
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Ottawa to Ireland 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 629,999 searches. Data last updated 12 August 2026.
Use the filters below to find and compare flights from Ottawa to Ireland that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

OttawaDublin

YOW Ottawa - DUB Dublin

YOWDUB

Ottawa

Thu 24/9

6:25 p.m.-9:20 a.m.

1 stop9h 55m

Dublin

Thu 1/10

10:00 a.m.-12:20 a.m.

2 stops19h 20m

C$ 781

OttawaDublin

YOW Ottawa - DUB Dublin

YOWDUB

Ottawa

Fri 9/10

7:40 p.m.-8:10 p.m.

1 stop19h 30m

Dublin

Tue 20/10

6:25 a.m.-12:25 a.m.

2 stops23h 00m

C$ 819

OttawaDublin

YOW Ottawa - DUB Dublin

YOWDUB

Ottawa

Tue 8/9

6:25 p.m.-1:15 p.m.

2 stops13h 50m

Dublin

Thu 17/9

9:50 p.m.-12:20 a.m.

3 stops31h 30m

C$ 901

OttawaShannon

YOW Ottawa - SNN Shannon

YOWSNN

Ottawa

Thu 24/9

4:00 p.m.-8:50 p.m.

2 stops23h 50m

Shannon

Thu 1/10

9:55 a.m.-12:40 p.m.

1 stop31h 45m

C$ 905

OttawaDublin

YOW Ottawa - DUB Dublin

YOWDUB

Ottawa

Wed 30/9

12:15 p.m.-8:15 a.m.

2 stops15h 00m

Dublin

Fri 9/10

9:20 a.m.-3:10 p.m.

1 stop10h 50m

C$ 908
Quickest round-trip

OttawaDublin

YOW Ottawa - DUB Dublin

YOWDUB

Ottawa

Sun 27/9

2:45 p.m.-7:45 a.m.

1 stop12h 00m

Dublin

Sat 3/10

9:30 a.m.-4:38 p.m.

1 stop12h 08m

C$ 940

OttawaDublin

YOW Ottawa - DUB Dublin

YOWDUB

Ottawa

Mon 21/9

2:00 p.m.-7:45 a.m.

2 stops12h 45m

Dublin

Wed 30/9

1:35 p.m.-10:35 p.m.

1 stop14h 00m

C$ 946

OttawaDublin

YOW Ottawa - DUB Dublin

YOWDUB

Ottawa

Sat 3/10

12:15 p.m.-8:15 a.m.

2 stops15h 00m

Dublin

Sat 10/10

8:50 a.m.-2:17 p.m.

1 stop10h 27m

C$ 946

OttawaDublin

YOW Ottawa - DUB Dublin

YOWDUB

Ottawa

Wed 30/9

7:00 a.m.-6:55 p.m.

2 stops30h 55m

Dublin

Fri 9/10

10:20 p.m.-12:25 a.m.

3 stops31h 05m

C$ 951

OttawaCork

YOW Ottawa - ORK Cork

YOWORK

Ottawa

Fri 25/9

6:25 p.m.-9:15 p.m.

3 stops21h 50m

Cork

Fri 2/10

8:55 p.m.-2:55 p.m.

3 stops47h 00m

C$ 1,086

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/8

Showing 1-10 of 38 resultsSorted by cheapest first
1
2
3
4

Best time to book a flight from Ottawa to Ireland

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

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

Currently, July is the cheapest month in which you can book a flight from Ottawa to Ireland (average of C$ 798). Flying from Ottawa to Ireland in February is currently the most expensive (average of C$ 1,302). 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 far ahead should I book a flight from Ottawa to Ireland?

To ensure you get the cheapest price possible for a flight from Ottawa to Ireland, you should look to book at least 88 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

Reviews of airlines servicing Ireland

Get insights into the airlines that provide service to Ireland. 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 Ireland. Reviews last updated 12 August 2026.
Read reviews from past customers who have flown Porter Airlines,Air Transat, andAer Lingus from Ottawa to Ireland. 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.
Porter Airlines
8.0
Very good
454 reviews
Check prices

Boarding

8.2

Entertainment

6.9

Comfort

8.0

Crew

8.6

Food

7.6

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Regan,Aug 2026

YYZ - YVR

My first flight with an all female flight crew who were the best ever.
Porter Airlines
8.0
Very good
454 reviews
Porter Airlines
8.0
Very good
454 reviews
Check prices

Boarding

8.2

Entertainment

6.9

Comfort

8.0

Crew

8.6

Food

7.6

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Regan,Aug 2026

YYZ - YVR

My first flight with an all female flight crew who were the best ever.
Air Transat
7.8
Good
572 reviews
Porter Airlines
8.0
Very good
454 reviews
Check prices

Boarding

8.2

Entertainment

6.9

Comfort

8.0

Crew

8.6

Food

7.6

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Regan,Aug 2026

YYZ - YVR

My first flight with an all female flight crew who were the best ever.
Aer Lingus
7.3
Good
1,697 reviews
Porter Airlines
8.0
Very good
454 reviews
Check prices

Boarding

8.2

Entertainment

6.9

Comfort

8.0

Crew

8.6

Food

7.6

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Regan,Aug 2026

YYZ - YVR

My first flight with an all female flight crew who were the best ever.
WestJet
7.2
Good
3,431 reviews
Porter Airlines
8.0
Very good
454 reviews
Check prices

Boarding

8.2

Entertainment

6.9

Comfort

8.0

Crew

8.6

Food

7.6

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Regan,Aug 2026

YYZ - YVR

My first flight with an all female flight crew who were the best ever.
Air Canada
7.1
Good
11,462 reviews
Porter Airlines
8.0
Very good
454 reviews
Check prices

Boarding

8.2

Entertainment

6.9

Comfort

8.0

Crew

8.6

Food

7.6

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Regan,Aug 2026

YYZ - YVR

My first flight with an all female flight crew who were the best ever.

Related info for your journey

Find useful and relevant information for your journey from Ottawa to Ireland. 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 from for flights from Ottawa to Ireland?

    Ottawa (YOW), located 10.6 km from the city centre, is the airport you fly out of when you book flights from Ottawa to Ireland.

  • How long is the flight from Ottawa to Ireland?

    WestJet, United Airlines, and Air Canada can get you from Ottawa to Ireland in just under 9h 55m. Your travel time can differ by up to 4h 10m. Airlines will cover a distance of 4899 km. Both multi-stop and direct flights can be found to your destination and back.

  • What are the most popular routes from Ottawa to Ireland?

    The most popular flight routes from Ottawa to Ireland are Ottawa - Dublin, Ottawa - Shannon and Ottawa - Cork.

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

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

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

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

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

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

    Currently, July is the cheapest month in which you can book a flight from Ottawa to Ireland (average of C$ 798). Flying from Ottawa to Ireland in February is currently the most expensive (average of C$ 1,302). 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

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Ottawa to Ireland

See prices for flight routes from nearby airports that may be better suited for you.
Pierre Elliott Trudeau Intl to Charles de Gaulle flights
Pearson Intl to Heathrow flights
Pearson Intl to Istanbul flights
Pearson Intl to Gatwick flights
Pearson Intl to Leonardo da Vinci/Fiumicino flights
Pearson Intl to Charles de Gaulle flights
Pearson Intl to Lisbon flights
Pierre Elliott Trudeau Intl to Heathrow flights
Pearson Intl to Athens flights
Pierre Elliott Trudeau Intl to Lisbon flights
Pierre Elliott Trudeau Intl to Leonardo da Vinci/Fiumicino flights
Pearson Intl to London City flights
Pearson Intl to Stansted flights
Pierre Elliott Trudeau Intl to Athens flights
Toronto Island to Heathrow flights
Pearson Intl to Dublin flights
Pierre Elliott Trudeau Intl to Orly flights
Pearson Intl to Amsterdam flights
Pierre Elliott Trudeau Intl to Istanbul flights
Pierre Elliott Trudeau Intl to Gatwick flights
Pearson Intl to Barcelona-El Prat flights
Pierre Elliott Trudeau Intl to Barcelona-El Prat flights
Pearson Intl to Luton flights
Pearson Intl to Frankfurt flights
Pearson Intl to Madrid flights
Pierre Elliott Trudeau Intl to Beauvais-Tille flights
Pearson Intl to Orly flights
Pearson Intl to Sabiha Gokcen flights
Toronto Island to Gatwick flights
Toronto Island to Leonardo da Vinci/Fiumicino flights
Toronto Island to Charles de Gaulle flights
Toronto Island to Istanbul flights
Toronto Island to Lisbon flights
Pearson Intl to Frederic Chopin flights
Pierre Elliott Trudeau Intl to Málaga flights
Pierre Elliott Trudeau Intl to London City flights
Pearson Intl to Zurich flights
Pierre Elliott Trudeau Intl to Madrid flights
Pierre Elliott Trudeau Intl to Stansted flights
Pearson Intl to Edinburgh flights
Pierre Elliott Trudeau Intl to Bruxelles-National flights
Pierre Elliott Trudeau Intl to Malpensa flights
Toronto Island to Frankfurt flights
Pierre Elliott Trudeau Intl to Luton flights
Pierre Elliott Trudeau Intl to Lyon flights
Pearson Intl to Ciampino flights
Pierre Elliott Trudeau Intl to Vicenza flights
Pierre Elliott Trudeau Intl to Frankfurt flights
Toronto Island to Dublin flights
Pearson Intl to Munich flights

Top 6 airlines flying from Ottawa to Ireland

Discover the top 6 airlines that operate flights from Ottawa to Ireland. 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 629,999 searches. Data last updated 12 August 2026.
AirlineCheapestAverageFlexibilityOn-time
WestJetCheapestC$ 617AverageC$ 770FlexibilityNo cancel feeOn-time60%
Search WestJet flights
Porter AirlinesCheapestC$ 636AverageC$ 857FlexibilityNo cancel feeOn-time52%
Search Porter Airlines flights
Air TransatCheapestC$ 648AverageC$ 861FlexibilityNo cancel feeOn-time50%
Search Air Transat flights
Aer LingusCheapestC$ 772AverageC$ 992FlexibilityNo cancel feeOn-timeN/A
Search Aer Lingus flights
Air CanadaCheapestC$ 869AverageC$ 1,072FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
LufthansaCheapestC$ 898AverageC$ 1,097FlexibilityNo cancel feeOn-time76%
Search Lufthansa flights

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travelers can enjoy low prices and a wide availability of flights to their desired destinations.

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

Cheapflights makes it easy to find Ottawa to Ireland flights by helping our users search from 900+ travel sites for deals. We also provide you with filters for cabin, price, airline, airports, number of stops, and many more to narrow down that perfect flight.

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

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 Ottawa to Ireland.

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

Need flexible booking options for your flight to Ireland from Ottawa? Don’t worry, Cheapflights have you covered. Use our search filter to only show flights with no change fees.

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

Yes! Start tracking prices for Ottawa to Ireland flights today and get alerted whenever prices for these flights change. To access this feature, click the bell icon next to the flight deals above, which will prompt you for a valid email address to receive your alerts.

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.