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.

€424 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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09:00 - 20:58DUB-ONT

19h 58m2 stops

05:05 - 07:30ONT-DUB

18h 25m2 stops

€424United Airlines

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Mon, 12 Jan - Sun, 18 Jan

09:30 - 22:57DUB-ONT

21h 27m2 stops

06:00 - 07:30ONT-DUB

17h 30m2 stops

€428United Airlines

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Wed, 25 Feb - Sun, 1 Mar

10:20 - 22:51DUB-ONT

20h 31m2 stops

14:47 - 16:50ONT-DUB

18h 03m2 stops

€430American Airlines

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Wed, 25 Feb - Sun, 1 Mar

10:20 - 22:51DUB-ONT

20h 31m2 stops

14:47 - 16:50ONT-DUB

18h 03m2 stops

€431American Airlines

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Wed, 25 Feb - Sun, 1 Mar

11:30 - 09:57DUB-ONT

30h 27m2 stops

15:19 - 17:00ONT-DUB

17h 41m2 stops

€433American Airlines

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Fri, 28 Nov - Tue, 2 Dec

11:30 - 21:11DUB-ONT

17h 41m2 stops

07:00 - 08:40ONT-DUB

17h 40m2 stops

€449Multiple Airlines

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Fri, 28 Nov - Tue, 2 Dec

17:15 - 21:48ORK-ONT

36h 33m2 stops

13:09 - 15:00ONT-ORK

41h 51m2 stops

€451Delta

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Fri, 27 Feb - Tue, 3 Mar

11:30 - 21:59DUB-ONT

18h 29m2 stops

07:00 - 08:40ONT-DUB

17h 40m2 stops

€460Multiple Airlines

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Tue, 25 Nov - Tue, 2 Dec

09:45 - 21:07DUB-ONT

19h 22m1 stop

22:20 - 07:45ONT-DUB

25h 25m1 stop

€496KLM

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Wed, 25 Feb - Sun, 1 Mar

12:55 - 22:28DUB-ONT

17h 33m1 stop

10:50 - 07:10ONT-DUB

12h 20m1 stop

€555Multiple Airlines

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Sat, 13 Dec - Fri, 26 Dec

Fly from

Route

Depart

Return

Price

DublinOntario

DUB - ONT

DUBONT

Dublin

Mon 12/1

09:00-20:58

2 stops19h 58m

Ontario

Sun 18/1

05:05-07:30

2 stops18h 25m

€424

DublinOntario

DUB - ONT

DUBONT

Dublin

Wed 25/2

09:30-22:57

2 stops21h 27m

Ontario

Sun 1/3

06:00-07:30

2 stops17h 30m

€428

DublinOntario

DUB - ONT

DUBONT

Dublin

Wed 25/2

10:20-22:51

2 stops20h 31m

Ontario

Sun 1/3

14:47-16:50

2 stops18h 03m

€430

DublinOntario

DUB - ONT

DUBONT

Dublin

Wed 25/2

10:20-22:51

2 stops20h 31m

Ontario

Sun 1/3

14:47-16:50

2 stops18h 03m

€431

DublinOntario

DUB - ONT

DUBONT

Dublin

Fri 28/11

11:30-09:57

2 stops30h 27m

Ontario

Tue 2/12

15:19-17:00

2 stops17h 41m

€433

DublinOntario

DUB - ONT

DUBONT

Dublin

Fri 28/11

11:30-21:11

2 stops17h 41m

Ontario

Tue 2/12

07:00-08:40

2 stops17h 40m

€449

CorkOntario

ORK - ONT

ORKONT

Cork

Fri 27/2

17:15-21:48

2 stops36h 33m

Ontario

Tue 3/3

13:09-15:00

2 stops41h 51m

€451

DublinOntario

DUB - ONT

DUBONT

Dublin

Tue 25/11

11:30-21:59

2 stops18h 29m

Ontario

Tue 2/12

07:00-08:40

2 stops17h 40m

€460

DublinOntario

DUB - ONT

DUBONT

Dublin

Wed 25/2

09:45-21:07

1 stop19h 22m

Ontario

Sun 1/3

22:20-07:45

1 stop25h 25m

€496

DublinOntario

DUB - ONT

DUBONT

Dublin

Sat 13/12

12:55-22:28

1 stop17h 33m

Ontario

Fri 26/12

10:50-07:10

1 stop12h 20m

€555

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

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Cheap Ontario flight deals and tips

Summary info about Ontario flight prices, duration and airlines

Best One-Way Price	€515
Best Round-Trip Price	€424
Fastest flight time	17h 10m

The best one-way flight price to Ontario from Ireland in the last 72 hours is €515 (Cork to Ontario).

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The best round-trip flight price to Ontario from Ireland in the last 72 hours is €424 (Dublin to Ontario).

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The fastest flight to Ontario from Ireland takes 17h 10m (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.