$560 Find Cheap Flights from Ireland to Ontario

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight to Ontario departing on 6/7. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

KAYAK searches hundreds of travel sites at once for deals on flights to Ontario

 
These are the airlines KAYAK users have selected most often from within our search results for flights to Ontario, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results for flights to Ontario, as well as popular online travel agencies
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Flight Deals

Cheap Flights from Ireland to Ontario

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Ireland to Ontario that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Ireland to Ontario

Thu, Apr 9 - Thu, Apr 23
Multiple Airlines Logo
9:30 am - 11:46 pm
DUB
-
ONT
22h 16m
1 stop
Multiple Airlines Logo
2:08 pm - 5:55 pm
ONT
-
DUB
19h 47m
2 stops
$597Multiple Airlines
Fri, Apr 3 - Tue, Apr 7
Multiple Airlines Logo
12:50 pm - 11:59 pm
DUB
-
ONT
19h 09m
2 stops
Multiple Airlines Logo
10:59 am - 2:35 pm
ONT
-
DUB
19h 36m
2 stops
$598Multiple Airlines
Wed, Apr 1 - Sun, Apr 5
American Airlines Logo
11:45 am - 9:24 pm
DUB
-
ONT
17h 39m
1 stop
American Airlines Logo
10:56 am - 9:45 am
ONT
-
DUB
14h 49m
1 stop
$606American Airlines
Fri, May 1 - Sun, May 10
Iberia Logo
9:30 am - 11:46 pm
DUB
-
ONT
22h 16m
1 stop
Iberia Logo
10:59 am - 9:45 am
ONT
-
DUB
14h 46m
1 stop
$607Iberia
Thu, Apr 2 - Mon, Apr 6
American Airlines Logo
11:45 am - 9:24 pm
DUB
-
ONT
17h 39m
1 stop
American Airlines Logo
11:59 pm - 9:35 am
ONT
-
DUB
25h 36m
1 stop
$610American Airlines
Mon, Apr 13 - Sun, Apr 26
American Airlines Logo
9:30 am - 6:37 pm
DUB
-
ONT
17h 07m
1 stop
American Airlines Logo
10:59 am - 9:45 am
ONT
-
DUB
14h 46m
1 stop
$611American Airlines
Mon, Apr 13 - Sun, Apr 26
American Airlines Logo
9:30 am - 6:37 pm
DUB
-
ONT
17h 07m
1 stop
American Airlines Logo
10:59 am - 9:45 am
ONT
-
DUB
14h 46m
1 stop
$612American Airlines
Wed, Apr 22 - Wed, Apr 29
Iberia Logo
9:30 am - 10:36 pm
DUB
-
ONT
21h 06m
1 stop
Iberia Logo
2:08 pm - 9:45 am
ONT
-
DUB
35h 37m
1 stop
$633Iberia
Sun, Apr 26 - Mon, May 4
British Airways Logo
8:30 pm - 10:36 pm
ORK
-
ONT
34h 06m
2 stops
British Airways Logo
11:59 pm - 10:45 am
ONT
-
ORK
26h 46m
2 stops
$907British Airways
Sun, Apr 26 - Mon, May 4
British Airways Logo
8:30 pm - 10:36 pm
ORK
-
ONT
34h 06m
2 stops
British Airways Logo
11:59 pm - 3:10 pm
ONT
-
ORK
31h 11m
2 stops
$912British Airways
Booking Insights

KAYAK's insights & trends for flights to Ontario

Get data-powered insights and trends for flights to Ontario to help you find the cheapest flights, the best time to fly and much more.

What is the cheapest flight to Ontario?

These are the best round-trip prices found by users searching on KAYAK in the last 72 hours.

In the last 3 days, the cheapest flight deal to Ontario was found on the route from Dublin, at $597 return. The most popular connection is from Dallas to Ontario and KAYAK users have found round-trip deals for as low as $164 in the last 3 days.

Find deals

Good to know

Cheapest flight$560
Flight from Dublin to Ontario

FAQs - booking Ontario flights

  • What is the cheapest flight to Ontario?

    In the last 3 days, the cheapest flight deal to Ontario was found on the route from Dublin, at $597 return. The most popular connection is from Dallas to Ontario and KAYAK users have found round-trip deals for as low as $164 in the last 3 days.

  • How far is Ontario Airport from central Ontario?

    The city center of Ontario is 3 miles from Ontario Airport.

  • What is the name of Ontario’s airport?

    There is only 1 airport in Ontario, called Ontario Airport (ONT). It can also be referred to as Ontario or Ontario Intl.

  • How does KAYAK find such low prices on flights to Ontario?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights to Ontario.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket to Ontario?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Ontario is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights to Ontario?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Ontario with an airline and back with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight to Ontario?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Ontario up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

  • How many direct flights to Ontario are there each week?

    Each week there are around 858 direct flights from within Ireland to Ontario. The most common day for departures is Friday, with 15% of flights taking off on this day.

Top tips for finding cheap flights to Ontario

  • Enter your preferred departure airport and travel dates into the search form above to unlock the latest Ontario flight deals.

Everything you need to know for your flight to Ontario

Information on the airport you'll fly into in Ontario

Ontario (ONT)