Which airlines fly to Ontario?

Aer Lingus is the airline most momondo users in Ireland opt for when booking flights to Ontario. British Airways, United Airlines and American Airlines are also popular choices when flying to Ontario from Ireland. Most major airlines flying from Ireland to Ontario will offer flights on a regular basis, though your options may vary depending on what airport you fly from.

€473 Cheap Flights to Ontario in 2025/26

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Find the cheapest flights from Ireland to Ontario

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One-way

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Cheap return flights

Enter your travel dates to find the best prices.

08:50 - 21:57DUB-ONT

21h 07m2 stops

15:05 - 16:50ONT-DUB

17h 45m2 stops

€473American Airlines

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Wed, 25 Feb - Sun, 1 Mar

12:55 - 16:28DUB-ONT

34h 33m1 stop

10:47 - 07:10ONT-DUB

12h 23m1 stop

€491American Airlines

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Fri, 31 Oct - Thu, 13 Nov

12:55 - 22:14DUB-ONT

17h 19m1 stop

10:50 - 07:10ONT-DUB

12h 20m1 stop

€531Multiple Airlines

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Mon, 22 Dec - Fri, 2 Jan

12:40 - 20:15DUB-ONT

15h 35m1 stop

12:55 - 09:45ONT-DUB

12h 50m1 stop

€544Multiple Airlines

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Mon, 30 Mar - Mon, 20 Apr

09:00 - 21:19DUB-ONT

44h 19m2 stops

05:40 - 06:10ONT-DUB

41h 30m2 stops

€569Air Canada

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Sun, 1 Mar - Mon, 9 Mar

09:45 - 21:14DUB-ONT

19h 29m1 stop

22:30 - 07:45ONT-DUB

26h 15m1 stop

€601Delta

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Fri, 27 Feb - Mon, 9 Mar

11:15 - 21:52ORK-ONT

42h 37m2 stops

22:30 - 23:25ONT-ORK

40h 55m2 stops

€607Delta

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Fri, 27 Feb - Tue, 3 Mar

10:45 - 21:14DUB-ONT

18h 29m2 stops

13:00 - 07:45ONT-DUB

34h 45m1 stop

€649KLM

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Wed, 25 Feb - Sun, 1 Mar

09:45 - 21:14DUB-ONT

19h 29m1 stop

22:30 - 07:45ONT-DUB

26h 15m1 stop

€670KLM

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Mon, 2 Mar - Mon, 9 Mar

09:00 - 20:58DUB-ONT

19h 58m2 stops

05:40 - 07:10ONT-DUB

17h 30m2 stops

€2,574Air Canada

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Fri, 6 Feb - Fri, 20 Feb

Fly from

Route

Depart

Return

Price

DublinOntario

DUB - ONT

DUBONT

Dublin

Wed 25/2

08:50-21:57

2 stops21h 07m

Ontario

Sun 1/3

15:05-16:50

2 stops17h 45m

€473

DublinOntario

DUB - ONT

DUBONT

Dublin

Fri 31/10

12:55-16:28

1 stop34h 33m

Ontario

Thu 13/11

10:47-07:10

1 stop12h 23m

€491

DublinOntario

DUB - ONT

DUBONT

Dublin

Mon 22/12

12:55-22:14

1 stop17h 19m

Ontario

Fri 2/1

10:50-07:10

1 stop12h 20m

€531

DublinOntario

DUB - ONT

DUBONT

Dublin

Mon 30/3

12:40-20:15

1 stop15h 35m

Ontario

Mon 20/4

12:55-09:45

1 stop12h 50m

€544

DublinOntario

DUB - ONT

DUBONT

Dublin

Sun 1/3

09:00-21:19

2 stops44h 19m

Ontario

Mon 9/3

05:40-06:10

2 stops41h 30m

€569

DublinOntario

DUB - ONT

DUBONT

Dublin

Fri 27/2

09:45-21:14

1 stop19h 29m

Ontario

Mon 9/3

22:30-07:45

1 stop26h 15m

€601

CorkOntario

ORK - ONT

ORKONT

Cork

Fri 27/2

11:15-21:52

2 stops42h 37m

Ontario

Tue 3/3

22:30-23:25

2 stops40h 55m

€607

DublinOntario

DUB - ONT

DUBONT

Dublin

Wed 25/2

10:45-21:14

2 stops18h 29m

Ontario

Sun 1/3

13:00-07:45

1 stop34h 45m

€649

DublinOntario

DUB - ONT

DUBONT

Dublin

Mon 2/3

09:45-21:14

1 stop19h 29m

Ontario

Mon 9/3

22:30-07:45

1 stop26h 15m

€670

DublinOntario

DUB - ONT

DUBONT

Dublin

Fri 6/2

09:00-20:58

2 stops19h 58m

Ontario

Fri 20/2

05:40-07:10

2 stops17h 30m

€2,574

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

Ontario flights insights and trends

Explore insights for your Ontario flight to craft the best travel plan

How long does it take to fly to Ontario?

Flight times vary depending on what airport in Ireland you fly out of and what airport in Ontario you fly into. For example, flying from Dublin to Los Angeles takes 11h on average. On the other hand, flying from Cork to Los Angeles takes 13h 45m on average. Keep in mind that it’s always quicker to opt for a non-stop flight, so be sure to check momondo to see if there are any available for your route.

Cheapest flights to Ontario

Find the cheapest flights to Ontario from your nearest city or airport

Find flights from Dublin to Palm Springs

Cheap Ontario flight deals and tips

Summary info about Ontario flight prices, duration and airlines

Best One-Way Price	€473
Best Round-Trip Price	€473
Fastest flight time	15h 35m

The best one-way flight price to Ontario from Ireland in the last 72 hours is €473 (Cork to Ontario).

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The best round-trip flight price to Ontario from Ireland in the last 72 hours is €473 (Dublin to Ontario).

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The fastest flight to Ontario from Ireland takes 15h 35m (Dublin to Ontario).

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Frequently asked questions about flying to Ontario

Is there an alternative airport near Ontario?

Finding an alternative and possibly cheaper destination airport near Ontario is possible. If you are planning a flight to Ontario, consider booking flights to Ontario Airport (5 km from Ontario city centre), San Bernardino Int Airport (38 km from Ontario city centre), Santa Ana J. Wayne/Orange Cnty Airport (47 km from Ontario city centre), Long Beach Municipal Airport (54 km from Ontario city centre) or Burbank Bob Hope Airport (67 km from Ontario city centre).

Is there a cheaper alternative to flying into Ontario?

Burbank Bob Hope Airport has an average price of €80 per person and is typically the cheapest airport to fly into when visiting Ontario. This average price does vary based on departure city. Try momondo’s Airport-to-Airport Pricing Tool to find the cheapest flight.

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

Prices for flights to Ontario Airport are refreshed on a daily basis.

How old do you have to be to fly to Ontario Airport?

Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and stopovers. It is recommended that you verify with the airline you are booking with for travel to Ontario Airport.

What documentation or ID do you need to fly to Ontario Airport?

The travel and health documents required for your trip to Ontario Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s licence, and a passport valid for six-months after you plan to arrive at Ontario Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

Why use momondo?

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

Finding the right flight to Ontario is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. These options can then be filtered down to find the best fit. That is what momondo does. We make finding flights to Ontario quick and easy, saving you time and money.

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

momondo does allow users to show only those flights to Ontario which offer a flexible booking policy as well as other useful filters and features.

How can momondo help me find flights to Ontario?

Once you have performed a search for flights to Ontario, momondo helps you find the right flight by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

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

Yes momondo offers price alerts on flights to Ontario. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.