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.

€430 Cheap Flights to Ontario in 2025/26

1 adult

0 bags

Discover deals from 900+ travel sites with momondo.

Voted the Winner of Europe's Best Travel App 2023

Save money when you book flights with momondo

Big names, great deals

Search 100s of travel sites to compare prices.

Filter for what you want

Free Wi-Fi? Stopover? Instantly customise your results.

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Not ready to book? to track prices.

Search flight deals

Find the cheapest flights from Ireland to Ontario

Round-trip

One-way

Last minute

Cheap return flights

Enter your travel dates to find the best prices.

09:30 - 20:50DUB-ONT

19h 20m2 stops

06:00 - 09:55ONT-DUB

19h 55m2 stops

€430United Airlines

Find Deal

Wed, 25 Feb - Sun, 1 Mar

12:55 - 22:23DUB-ONT

17h 28m1 stop

10:47 - 07:10ONT-DUB

12h 23m1 stop

€450Iberia

Find Deal

Fri, 21 Nov - Fri, 5 Dec

08:50 - 22:51DUB-ONT

22h 01m2 stops

14:47 - 16:50ONT-DUB

18h 03m2 stops

€463American Airlines

Find Deal

Wed, 25 Feb - Sun, 1 Mar

10:20 - 22:29DUB-ONT

20h 09m2 stops

07:00 - 07:10ONT-DUB

16h 10m1 stop

€478American Airlines

Find Deal

Wed, 19 Nov - Sun, 23 Nov

05:55 - 23:04DUB-ONT

25h 09m2 stops

06:45 - 08:45ONT-DUB

18h 00m2 stops

€573Delta

Find Deal

Wed, 19 Nov - Sun, 23 Nov

09:45 - 21:07DUB-ONT

19h 22m1 stop

07:30 - 07:45ONT-DUB

16h 15m2 stops

€600Delta

Find Deal

Wed, 25 Feb - Sun, 1 Mar

09:00 - 12:33DUB-ONT

35h 33m2 stops

21:35 - 07:10ONT-DUB

49h 35m2 stops

€638Air Canada

Find Deal

Wed, 19 Nov - Sun, 30 Nov

09:00 - 22:31DUB-ONT

21h 31m2 stops

05:05 - 10:15ONT-DUB

21h 10m3 stops

€710Multiple Airlines

Find Deal

Wed, 19 Nov - Sun, 23 Nov

09:00 - 20:44DUB-ONT

43h 44m2 stops

05:05 - 07:10ONT-DUB

42h 05m2 stops

€718Air Canada

Find Deal

Mon, 17 Nov - Fri, 21 Nov

13:00 - 22:14DUB-ONT

17h 14m1 stop

10:50 - 07:10ONT-DUB

12h 20m1 stop

€744Multiple Airlines

Find Deal

Tue, 23 Dec - Fri, 2 Jan

Fly from

Route

Depart

Return

Price

DublinOntario

DUB - ONT

DUBONT

Dublin

Wed 25/2

09:30-20:50

2 stops19h 20m

Ontario

Sun 1/3

06:00-09:55

2 stops19h 55m

€430

DublinOntario

DUB - ONT

DUBONT

Dublin

Fri 21/11

12:55-22:23

1 stop17h 28m

Ontario

Fri 5/12

10:47-07:10

1 stop12h 23m

€450

DublinOntario

DUB - ONT

DUBONT

Dublin

Wed 25/2

08:50-22:51

2 stops22h 01m

Ontario

Sun 1/3

14:47-16:50

2 stops18h 03m

€463

DublinOntario

DUB - ONT

DUBONT

Dublin

Wed 19/11

10:20-22:29

2 stops20h 09m

Ontario

Sun 23/11

07:00-07:10

1 stop16h 10m

€478

DublinOntario

DUB - ONT

DUBONT

Dublin

Wed 19/11

05:55-23:04

2 stops25h 09m

Ontario

Sun 23/11

06:45-08:45

2 stops18h 00m

€573

DublinOntario

DUB - ONT

DUBONT

Dublin

Wed 25/2

09:45-21:07

1 stop19h 22m

Ontario

Sun 1/3

07:30-07:45

2 stops16h 15m

€600

DublinOntario

DUB - ONT

DUBONT

Dublin

Wed 19/11

09:00-12:33

2 stops35h 33m

Ontario

Sun 30/11

21:35-07:10

2 stops49h 35m

€638

DublinOntario

DUB - ONT

DUBONT

Dublin

Wed 19/11

09:00-22:31

2 stops21h 31m

Ontario

Sun 23/11

05:05-10:15

3 stops21h 10m

€710

DublinOntario

DUB - ONT

DUBONT

Dublin

Mon 17/11

09:00-20:44

2 stops43h 44m

Ontario

Fri 21/11

05:05-07:10

2 stops42h 05m

€718

DublinOntario

DUB - ONT

DUBONT

Dublin

Tue 23/12

13:00-22:14

1 stop17h 14m

Ontario

Fri 2/1

10:50-07:10

1 stop12h 20m

€744

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	€515
Best Round-Trip Price	€430
Fastest flight time	15h 35m

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

Search Deals

The best round-trip flight price to Ontario from Ireland in the last 72 hours is €430 (Dublin to Ontario).

Search Deals

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

Search Deals

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 €81 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.