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Cheap flights from Ontario to Dublin from $413

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Ontario to Dublin departing on 1/27. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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0 bags

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Find the cheapest flights from Ontario to Dublin

Cheap round-trip flights

Enter your travel dates to find the best prices.
British Airways Logo
4:45 pm - 4:35 pm
ONT
-
DUB
15h 50m2 stops
British Airways Logo
7:45 pm - 6:42 pm
DUB
-
ONT
30h 57m2 stops
$486British Airways
Wed, Feb 4 - Wed, Feb 11
British Airways Logo
7:00 am - 10:15 am
ONT
-
DUB
19h 15m2 stops
British Airways Logo
8:45 am - 7:45 pm
DUB
-
ONT
19h 00m2 stops
$488British Airways
Wed, Feb 18 - Wed, Feb 25
British Airways Logo
6:00 am - 11:15 am
ONT
-
DUB
21h 15m2 stops
British Airways Logo
7:45 pm - 5:22 pm
DUB
-
ONT
29h 37m2 stops
$489British Airways
Wed, Jan 21 - Wed, Jan 28
British Airways Logo
12:19 pm - 6:15 pm
ONT
-
DUB
21h 56m2 stops
British Airways Logo
8:40 am - 10:35 pm
DUB
-
ONT
21h 55m2 stops
$493British Airways
Sun, Apr 12 - Tue, Apr 21
British Airways Logo
4:45 pm - 5:00 pm
ONT
-
DUB
16h 15m2 stops
British Airways Logo
7:35 am - 10:48 pm
DUB
-
ONT
23h 13m2 stops
$494British Airways
Wed, Jan 28 - Tue, Feb 3
American Airlines Logo
2:39 pm - 3:40 pm
ONT
-
DUB
17h 01m2 stops
American Airlines Logo
11:40 am - 10:07 pm
DUB
-
ONT
17h 27m2 stops
$501American Airlines
Tue, Mar 3 - Tue, Mar 10
Multiple Airlines Logo
10:59 am - 2:35 pm
ONT
-
DUB
19h 36m2 stops
Multiple Airlines Logo
9:30 am - 10:35 pm
DUB
-
ONT
21h 05m1 stop
$502Multiple Airlines
Tue, Apr 21 - Wed, Apr 29
British Airways Logo
2:39 pm - 7:40 pm
ONT
-
DUB
21h 01m2 stops
British Airways Logo
8:40 pm - 6:42 pm
DUB
-
ONT
29h 02m2 stops
$506British Airways
Mon, Mar 2 - Mon, Mar 9
Delta Logo
6:00 am - 8:45 am
ONT
-
DUB
18h 45m2 stops
Delta Logo
1:25 pm - 4:15 pm
DUB
-
ONT
34h 50m2 stops
$508Delta
Wed, Jan 28 - Wed, Feb 4
Delta Logo
10:20 pm - 7:45 am
ONT
-
DUB
25h 25m1 stop
Delta Logo
5:55 am - 9:04 pm
DUB
-
ONT
22h 09m2 stops
$509Delta
Tue, Mar 3 - Tue, Mar 10

American Airlines flights from Ontario to Dublin

Our best American Airlines deals on Ontario to Dublin flight tickets
American Airlines
Mar 3
ONT2:39 pmOntario
17h 01m
2 stops
DUB3:40 pmDublin
Mar 10
DUB11:40 amDublin
17h 27m
2 stops
ONT10:07 pmOntario
$501
American Airlines
May 5
ONT10:59 amOntario
16h 16m
2 stops
DUB11:15 amDublin
May 15
DUB11:45 amDublin
17h 21m
1 stop
ONT9:06 pmOntario
$605
American Airlines
May 5
ONT2:08 pmOntario
16h 42m
2 stops
DUB2:50 pmDublin
May 15
DUB1:25 pmDublin
17h 10m
2 stops
ONT10:35 pmOntario
$609

British Airways flights from Ontario to Dublin

Our best British Airways deals on Ontario to Dublin flight tickets
British Airways
Feb 4
ONT4:45 pmOntario
15h 50m
2 stops
DUB4:35 pmDublin
Feb 11
DUB7:45 pmDublin
30h 57m
2 stops
ONT6:42 pmOntario
$486
British Airways
Feb 18
ONT7:00 amOntario
19h 15m
2 stops
DUB10:15 amDublin
Feb 25
DUB8:45 amDublin
19h 00m
2 stops
ONT7:45 pmOntario
$488
British Airways
Jan 21
ONT6:00 amOntario
21h 15m
2 stops
DUB11:15 amDublin
Jan 28
DUB7:45 pmDublin
29h 37m
2 stops
ONT5:22 pmOntario
$489

momondo Fare Finder

 
Customize your flight search to find flights from Ontario 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, momondo users made 832,500 searches. Data last updated January 9, 2026.
Use the filters below to find and compare flights from Ontario to Dublin that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

OntarioDublin

ONT - DUB

ONTDUB

Ontario

Wed 2/4

4:45 pm-4:35 pm

2 stops15h 50m

Dublin

Wed 2/11

7:45 pm-6:42 pm

2 stops30h 57m

$486

OntarioDublin

ONT - DUB

ONTDUB

Ontario

Wed 2/18

7:00 am-10:15 am

2 stops19h 15m

Dublin

Wed 2/25

8:45 am-7:45 pm

2 stops19h 00m

$488

OntarioDublin

ONT - DUB

ONTDUB

Ontario

Wed 1/21

6:00 am-11:15 am

2 stops21h 15m

Dublin

Wed 1/28

7:45 pm-5:22 pm

2 stops29h 37m

$489

OntarioDublin

ONT - DUB

ONTDUB

Ontario

Sun 4/12

12:19 pm-6:15 pm

2 stops21h 56m

Dublin

Tue 4/21

8:40 am-10:35 pm

2 stops21h 55m

$493

OntarioDublin

ONT - DUB

ONTDUB

Ontario

Wed 1/28

4:45 pm-5:00 pm

2 stops16h 15m

Dublin

Tue 2/3

7:35 am-10:48 pm

2 stops23h 13m

$494

OntarioDublin

ONT - DUB

ONTDUB

Ontario

Tue 3/3

2:39 pm-3:40 pm

2 stops17h 01m

Dublin

Tue 3/10

11:40 am-10:07 pm

2 stops17h 27m

$501

OntarioDublin

ONT - DUB

ONTDUB

Ontario

Tue 4/21

10:59 am-2:35 pm

2 stops19h 36m

Dublin

Wed 4/29

9:30 am-10:35 pm

1 stop21h 05m

$502

OntarioDublin

ONT - DUB

ONTDUB

Ontario

Mon 3/2

2:39 pm-7:40 pm

2 stops21h 01m

Dublin

Mon 3/9

8:40 pm-6:42 pm

2 stops29h 02m

$506

OntarioDublin

ONT - DUB

ONTDUB

Ontario

Wed 1/28

6:00 am-8:45 am

2 stops18h 45m

Dublin

Wed 2/4

1:25 pm-4:15 pm

2 stops34h 50m

$508

OntarioDublin

ONT - DUB

ONTDUB

Ontario

Tue 3/3

10:20 pm-7:45 am

1 stop25h 25m

Dublin

Tue 3/10

5:55 am-9:04 pm

2 stops22h 09m

$509

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Dublin from

How to get the cheapest flight ticket from Ontario to Dublin

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest day to depart on your flight to Dublin?

The cheapest day to depart from Ontario to Dublin is on a Sunday. Travelers who choose to depart for Dublin on a Sunday will often find tickets for as low as $728. Flights from Ontario to Dublin on a Saturday will generally be more expensive and average around $849. Keep in mind that these prices on both days could fluctuate depending on the season and the demand.

What is the cheapest time of day to depart on your flight to Dublin?

In the evening is the cheapest time of day to fly from Ontario to Dublin when you can find flight prices for as low as $771. Flying to Dublin in the evening is an ideal time because this is during off-peak travel hours. Flights in the afternoon are often more expensive with an average ticket price of $812.

Can stopping save me money on Ontario to Dublin flights?

You could potentially save up to 22% on your flight if you consider stops on a Ontario to Dublin flight.

When to book flights from Ontario to Dublin

Are you open to changing your travel dates? Check out the ideal times to fly from Ontario to Dublin according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Ontario to Dublin (ONT to DUB) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Ontario to Dublin

Fastest flight time

12h 59m

Direct flights

None
The fastest flight from Ontario to Dublin takes 12h 59m
There are no direct flights from Ontario to Dublin. There are no popular flight routes from Ontario to Dublin.
Search flight deals

  • How far is Ontario to Dublin by plane?

    The distance between Ontario and Dublin is about 5136.8 mi. Typically, this will take 12h 59m by plane in normal conditions.

  • When did momondo last update prices for flights from Ontario Airport to Dublin Airport?

    Prices for flights from Ontario Airport to Dublin Airport were last updated today.

  • How many operators does momondo search for flights from Ontario Airport to Dublin Airport?

  • How old do you have to be to fly from Ontario Airport to Dublin Airport?

    The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Ontario Airport to Dublin Airport.

  • What documentation or ID do you need to fly to Dublin Airport?

    The required travel and health documents for your Dublin Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Dublin Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

  • What is the most popular airline from Ontario to Dublin?

Best airlines flying from Ontario to Dublin

Compare and see reviews for airlines that fly from Ontario to Dublin with momondo
Airline
Rating
Free Cancellation
Price
DeltaPriceFrom $527Free CancellationRating
7.9
8,030 reviews
Search Delta flights
IberiaPriceFrom $547Free CancellationRating
7.0
3,079 reviews
Search Iberia flights
American AirlinesPriceFrom $683Free CancellationRating
7.2
11,097 reviews
Search American Airlines flights

Traveling to a place near Dublin?

Book flights to Dublin if you plan to visit one of these locations
Kilkenny
Swords
Athlone
Dundalk
Malahide
Mullingar
Bray
Kildare
Wicklow
Drogheda
Maynooth
Portmarnock
Arklow
Cavan
Castleknock
Naas
Leixlip
Thurles
Slane

Why use momondo?

Why should I use momondo to find a flight deal from Ontario to Dublin?

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Ontario to Dublin. momondo saves you time and could save you money on your trip.

Can I find flights from Ontario to Dublin with flexible booking policies on momondo?

Yes. momondo allows you to filter the results for Ontario to Dublin flights to just show those with flexible booking policies.

How can momondo help me find flights from Ontario to Dublin?

momondo helps you find the best flight between Ontario and Dublin by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

I’m not ready to book a flight from Ontario to Dublin right now. Can momondo alert me if prices change?

Yes. momondo can track prices for Ontario to Dublin flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.

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