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Cheap flights from Ottawa to Dublin from C$ 459

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 15/4. Fares are subject to change and may not be available on all flights or dates of travel.
YOW — DUB
27 Nov — 4 Dec1
1 adult
1 adult, Economy, 0 bags

Cheapflights Tip: The best prices from Ottawa to Dublin are usually found in September or July, booked 59 days in advance, depart on a Monday or Wednesday and return on a Monday

Cheap flight deals from Ottawa to Dublin

Discover tips and strategies to find the most affordable flight options for your journey from Ottawa (YOW) to Dublin (DUB). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated 28 October 2025.

Round-trip from

C$ 659

One-way from

C$ 459

Popular in

December

Cheapest in

September

Average price

C$ 989
WestJet
  • WestJet
  • 20/4-29/4
  • 2 total stops
  • 41h 22m total
  • Ottawa to Dublin
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15/4
  • 15/4
  • 1 total stop
  • 13h 55m total
  • Ottawa to Dublin
Search Deals
Highest demand for flights based on searches. 10% potential increase in price (C$ 163 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease (C$ 20 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in October 2025
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Find flight deals from Ottawa to Dublin

Enter your travel dates to find the best prices.

Cheapest flights from Ottawa to Dublin
Explore the most affordable flight options available from Ottawa to Dublin. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 28 October 2025.

Thu 11/124:45 p.m.YOW - DUB
1 stop10h 35mMultiple Airlines
Thu 18/1211:40 a.m.DUB - YOW
1 stop10h 29mMultiple Airlines
Deal found 27/10C$ 901
Wed 26/1110:20 a.m.YOW - DUB
1 stop13h 55mAer Lingus
Wed 3/121:00 p.m.DUB - YOW
1 stop11h 18mAer Lingus
Deal found 26/10C$ 925
Wed 26/118:00 p.m.YOW - DUB
2 stops30h 10mAir Canada
Wed 3/129:00 a.m.DUB - YOW
2 stops12h 18mAir Canada
Deal found 26/10C$ 948
Mon 24/115:40 a.m.YOW - DUB
2 stops24h 20mMultiple Airlines
Mon 1/126:35 p.m.DUB - YOW
2 stops35h 07mMultiple Airlines
Deal found 27/10C$ 961
Mon 24/118:25 p.m.YOW - DUB
1 stop29h 45mAir Canada
Mon 1/129:00 a.m.DUB - YOW
1 stop21h 38mAir Canada
Deal found 27/10C$ 968
Wed 10/125:55 p.m.YOW - DUB
1 stop11h 00mAir Canada
Wed 17/129:30 a.m.DUB - YOW
1 stop12h 02mAir Canada
Deal found 26/10C$ 982
Thu 11/123:10 p.m.YOW - DUB
2 stops14h 10mUnited Airlines
Thu 18/1212:05 p.m.DUB - YOW
2 stops30h 13mUnited Airlines
Deal found 27/10C$ 992

Cheapflights Fare Finder

 
Customize your flight search to find flights from Ottawa to Dublin 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 28 October 2025.
Use the filters below to find and compare flights from Ottawa to Dublin that are best for you.

Fly from

Ottawa

Fly to

Dublin

Route

Depart

Return

Price

OttawaDublin

YOW - DUB

YOWDUB

Ottawa

Tue 10/3

4:15 p.m.-6:10 a.m.

1 stop9h 55m

Dublin

Wed 15/4

9:50 a.m.-5:14 p.m.

1 stop12h 24m

C$ 944

OttawaDublin

YOW - DUB

YOWDUB

Ottawa

Mon 12/1

5:40 a.m.-3:20 p.m.

2 stops28h 40m

Dublin

Wed 21/1

1:10 p.m.-12:42 a.m.

2 stops16h 32m

C$ 947

OttawaDublin

YOW - DUB

YOWDUB

Ottawa

Mon 12/1

8:00 p.m.-7:10 a.m.

2 stops30h 10m

Dublin

Wed 21/1

9:00 a.m.-3:23 p.m.

1 stop11h 23m

C$ 948

OttawaDublin

YOW - DUB

YOWDUB

Ottawa

Mon 20/4

2:50 p.m.-8:15 a.m.

2 stops12h 25m

Dublin

Wed 29/4

9:50 a.m.-7:16 p.m.

2 stops14h 26m

C$ 954

OttawaDublin

YOW - DUB

YOWDUB

Ottawa

Mon 24/11

8:25 p.m.-7:10 a.m.

1 stop29h 45m

Dublin

Mon 1/12

9:00 a.m.-1:38 a.m.

1 stop21h 38m

C$ 968

OttawaDublin

YOW - DUB

YOWDUB

Ottawa

Mon 24/11

8:25 p.m.-7:10 a.m.

1 stop29h 45m

Dublin

Mon 1/12

1:20 p.m.-5:42 p.m.

2 stops33h 22m

C$ 968

OttawaDublin

YOW - DUB

YOWDUB

Ottawa

Thu 11/12

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

2 stops14h 10m

Dublin

Thu 18/12

12:05 p.m.-1:18 p.m.

2 stops30h 13m

C$ 992

OttawaDublin

YOW - DUB

YOWDUB

Ottawa

Fri 7/11

8:00 p.m.-7:30 a.m.

2 stops30h 30m

Dublin

Wed 19/11

9:00 a.m.-5:42 p.m.

2 stops13h 42m

C$ 1,004

OttawaDublin

YOW - DUB

YOWDUB

Ottawa

Wed 10/12

11:40 a.m.-5:15 a.m.

2 stops12h 35m

C$ 504

OttawaDublin

YOW - DUB

YOWDUB

Ottawa

Fri 12/12

7:15 a.m.-10:55 p.m.

3 stops34h 40m

C$ 513

Flights are sorted by cheapest round-trip flights first.

Deals found on 27/10

Showing 1-10 of 14 results
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Best time to book a flight from Ottawa to Dublin

Have a flexible travel schedule? Discover the best time to fly to Dublin 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 Dublin

How far ahead should I book a flight from Ottawa to Dublin?

Use this chart to determine the optimal time to book a round-trip flight from Ottawa to Dublin. Price data was last updated on 24 October 2025.

The price you pay for your flight from Ottawa to Dublin may vary depending on when you book. For the best chance of a lower fare, look to book 59 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

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

Currently, September is the cheapest month in which you can book a flight from Ottawa to Dublin (average of C$ 603). Flying from Ottawa to Dublin in August is currently the most expensive (average of C$ 838). 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.

What is the cheapest time of day to fly from YOW to DUB?

Find hourly flight availability from Ottawa to Dublin. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 28 October 2025.

A simple way to save on the total cost of your ticket is to fly from Ottawa to Dublin in the evening. If you’re flexible enough to do this you can expect to save up to 11% on your trip compared to booking a flight in the morning.

What is the cheapest day to fly from Ottawa to Dublin?

Use this chart to determine the cheapest time to fly round-trip from Ottawa to Dublin. Price data was last updated on 16 December 2024.

Travelers seeking maximum savings on their Ottawa to Dublin flight should consider departing on Saturday evenings when fares are most often at their lowest. Friday at noon flights should be avoided if possible as fares are typically the most expensive at this time.

Reviews of airlines servicing Dublin

Get insights into the airlines that provide service to Dublin. 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 Dublin. Reviews last updated 28 October 2025.
Read through reviews of airlines operating flights from Ottawa to Dublin, such as Porter Airlines,Air Transat, andAir France. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Porter Airlines
8.0
Very good
384 reviews
Check prices

Boarding

8.2

Comfort

8.0

Crew

8.6

Entertainment

7.0

Overall

8.0

Food

7.6

Reviews

1 / 20
2.0
Mediocre

Anonymous,Sep 2025

YYZ - OPO

Very disappointing, booked with Porter airlines and changed to Air Transit last minute. Old plane, cramped seating, even the aisle was the narrowest I’ve ever seen. Very uncomfortable flight. Full meal at 130 am and only a small piece of banana bread in the morning… should be opposite.
Porter Airlines
8.0
Very good
384 reviews
Porter Airlines
8.0
Very good
384 reviews
Check prices

Boarding

8.2

Comfort

8.0

Crew

8.6

Entertainment

7.0

Overall

8.0

Food

7.6

Reviews

1 / 20
2.0
Mediocre

Anonymous,Sep 2025

YYZ - OPO

Very disappointing, booked with Porter airlines and changed to Air Transit last minute. Old plane, cramped seating, even the aisle was the narrowest I’ve ever seen. Very uncomfortable flight. Full meal at 130 am and only a small piece of banana bread in the morning… should be opposite.
Air Transat
7.8
Good
469 reviews
Porter Airlines
8.0
Very good
384 reviews
Check prices

Boarding

8.2

Comfort

8.0

Crew

8.6

Entertainment

7.0

Overall

8.0

Food

7.6

Reviews

1 / 20
2.0
Mediocre

Anonymous,Sep 2025

YYZ - OPO

Very disappointing, booked with Porter airlines and changed to Air Transit last minute. Old plane, cramped seating, even the aisle was the narrowest I’ve ever seen. Very uncomfortable flight. Full meal at 130 am and only a small piece of banana bread in the morning… should be opposite.
Air France
7.4
Good
1,482 reviews
Porter Airlines
8.0
Very good
384 reviews
Check prices

Boarding

8.2

Comfort

8.0

Crew

8.6

Entertainment

7.0

Overall

8.0

Food

7.6

Reviews

1 / 20
2.0
Mediocre

Anonymous,Sep 2025

YYZ - OPO

Very disappointing, booked with Porter airlines and changed to Air Transit last minute. Old plane, cramped seating, even the aisle was the narrowest I’ve ever seen. Very uncomfortable flight. Full meal at 130 am and only a small piece of banana bread in the morning… should be opposite.
Aer Lingus
7.2
Good
1,361 reviews
Porter Airlines
8.0
Very good
384 reviews
Check prices

Boarding

8.2

Comfort

8.0

Crew

8.6

Entertainment

7.0

Overall

8.0

Food

7.6

Reviews

1 / 20
2.0
Mediocre

Anonymous,Sep 2025

YYZ - OPO

Very disappointing, booked with Porter airlines and changed to Air Transit last minute. Old plane, cramped seating, even the aisle was the narrowest I’ve ever seen. Very uncomfortable flight. Full meal at 130 am and only a small piece of banana bread in the morning… should be opposite.
Air Canada
7.1
Good
10,371 reviews
Porter Airlines
8.0
Very good
384 reviews
Check prices

Boarding

8.2

Comfort

8.0

Crew

8.6

Entertainment

7.0

Overall

8.0

Food

7.6

Reviews

1 / 20
2.0
Mediocre

Anonymous,Sep 2025

YYZ - OPO

Very disappointing, booked with Porter airlines and changed to Air Transit last minute. Old plane, cramped seating, even the aisle was the narrowest I’ve ever seen. Very uncomfortable flight. Full meal at 130 am and only a small piece of banana bread in the morning… should be opposite.

Related info for your journey

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

  • How long is the flight from Ottawa to Dublin?

    Airlines like Air Canada fly from Ottawa to Dublin in about 30h 10m. The time it takes to get you to your destination can typically vary by up to . The distance between Ottawa and Dublin is about 4899 km.

  • What are the cheapest airlines flying from Ottawa to Dublin round-trip?

    Our cheapest airline available from Ottawa to Dublin is WestJet. Our recent data shows that you can find tickets from as low as C$ 640 on this airline. Additional options worth looking into are Air Transat and Aer Lingus, starting at C$ 728 and C$ 765 round-trip. WestJet is priced at 37% lower than the current average price of a flight leaving 3 months from now.

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

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

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

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

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

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

    Currently, September is the cheapest month in which you can book a flight from Ottawa to Dublin (average of C$ 603). Flying from Ottawa to Dublin in August is currently the most expensive (average of C$ 838). 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

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Fly from Ottawa to Dublin on these airlines

Choose from the following airlines for your flight from Ottawa to Dublin. Flights are based on user searches made on Cheapflights and were last updated on 28 October 2025.
Air Canada flights from Ottawa to Dublin
Air Transat flights from Ottawa to Dublin
Lufthansa flights from Ottawa to Dublin

Top 8 airlines flying from Ottawa to Dublin

Discover the top 8 airlines that operate flights from Ottawa to Dublin. 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 28 October 2025.
AirlineCheapestAverageFlexibilityOn-time
WestJetCheapestC$ 640AverageC$ 789FlexibilityNo cancel feeOn-time60%
Search WestJet flights
Air TransatCheapestC$ 728AverageC$ 857FlexibilityNo cancel feeOn-time50%
Search Air Transat flights
Aer LingusCheapestC$ 765AverageC$ 1,023FlexibilityNo cancel feeOn-timeN/A
Search Aer Lingus flights
Porter AirlinesCheapestC$ 833AverageC$ 878FlexibilityNo cancel feeOn-time52%
Search Porter Airlines flights
Air CanadaCheapestC$ 850AverageC$ 1,012FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
LufthansaCheapestC$ 868AverageC$ 972FlexibilityNo cancel feeOn-time76%
Search Lufthansa flights
Air FranceCheapestC$ 891AverageC$ 1,123FlexibilityNo cancel feeOn-time77%
Search Air France flights
United AirlinesCheapestC$ 940AverageC$ 1,161FlexibilityNo cancel feeOn-time69%
Search United Airlines 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 Dublin?

Deals for Ottawa to Dublin flights are sourced from 900+ travel sites when you use Cheapflights. When all flight results come back, Cheapflights lets you sort and filter flights using different criteria to choose better, like price, airport, cabin class, and plenty of other options.

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

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 Dublin.

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

Yes, we can. To see specific flights from Ottawa to Dublin with no change fees, users can toggle flexible booking options after using the search form above to find flights.

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

Yes, and it’s super simple to set up. Click the bell icon next to the flight deals above and provide a valid email address to enable Price Alerts. That’s it!

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