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 14h 40m 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.

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

Prices for flights from Ireland to Ontario Airport are updated daily.

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

The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and stopovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Ireland to Ontario Airport.

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

The necessary travel and health documents for your Ontario Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's licence and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

€332 Cheap Flights from Ireland to Ontario in 2026

Find the cheapest flights from Ireland to Los Angeles

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One-way

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Recent return flight deals from Ireland to Los Angeles

Enter your travel dates to find the best prices.

09:50 - 22:59DUB Dublin-ONT Ontario

21h 09m2 stops Madrid Barajas Dallas/Fort Worth

12:37 - 09:45ONT Ontario-DUB Dublin

13h 08m1 stop Dallas/Fort Worth

€611Iberia

Tue, 8 Sep - Thu, 24 Sep

12:40 - 22:59DUB Dublin-ONT Ontario

18h 19m1 stop Dallas/Fort Worth

12:37 - 09:45ONT Ontario-DUB Dublin

13h 08m1 stop Dallas/Fort Worth

€613Iberia

Tue, 8 Sep - Thu, 24 Sep

12:40 - 22:59DUB Dublin-ONT Ontario

18h 19m1 stop Dallas/Fort Worth

10:25 - 09:45ONT Ontario-DUB Dublin

15h 20m1 stop Dallas/Fort Worth

€615Iberia

Thu, 3 Sep - Fri, 11 Sep

08:50 - 22:49DUB Dublin-ONT Ontario

21h 59m2 stops London Heathrow Dallas/Fort Worth

15:09 - 15:05ONT Ontario-DUB Dublin

15h 56m2 stops Dallas/Fort Worth London Heathrow

€616British Airways

Wed, 20 Jan - Sun, 24 Jan

10:20 - 22:49DUB Dublin-ONT Ontario

20h 29m2 stops London Heathrow Dallas/Fort Worth

15:09 - 19:40ONT Ontario-DUB Dublin

20h 31m2 stops Dallas/Fort Worth London Heathrow

€617British Airways

Wed, 20 Jan - Sun, 24 Jan

12:40 - 18:47DUB Dublin-ONT Ontario

14h 07m1 stop Dallas/Fort Worth

12:37 - 09:45ONT Ontario-DUB Dublin

13h 08m1 stop Dallas/Fort Worth

€618Multiple Airlines

Fri, 28 Aug - Sat, 12 Sep

11:30 - 22:38DUB Dublin-ONT Ontario

19h 08m1 stop New York John F Kennedy Intl

23:59 - 09:00ONT Ontario-DUB Dublin

25h 01m1 stop New York John F Kennedy Intl

€622JetBlue

Thu, 27 Aug - Mon, 31 Aug

09:50 - 22:59DUB Dublin-ONT Ontario

21h 09m2 stops Madrid Barajas Dallas/Fort Worth

08:25 - 09:45ONT Ontario-DUB Dublin

17h 20m1 stop Dallas/Fort Worth

€625Iberia

Fri, 28 Aug - Fri, 11 Sep

12:40 - 18:47DUB Dublin-ONT Ontario

14h 07m1 stop Dallas/Fort Worth

10:25 - 09:45ONT Ontario-DUB Dublin

15h 20m1 stop Dallas/Fort Worth

€627American Airlines

Thu, 27 Aug - Thu, 10 Sep

12:40 - 22:59DUB Dublin-ONT Ontario

18h 19m1 stop Dallas/Fort Worth

12:37 - 09:45ONT Ontario-DUB Dublin

13h 08m1 stop Dallas/Fort Worth

€628American Airlines

Fri, 28 Aug - Thu, 10 Sep

Recent last minute flight deals from Ireland to Los Angeles

Enter your travel dates to find the best prices.

09:30 - 18:15DUB Dublin-ONT Ontario

16h 45m2 stops Chicago O'Hare Intl Phoenix Sky Harbor Intl

10:29 - 09:45ONT Ontario-DUB Dublin

15h 16m1 stop Dallas/Fort Worth

€749American Airlines

Tue, 11 Aug - Mon, 24 Aug

12:40 - 12:03DUB Dublin-ONT Ontario

31h 23m2 stops Dallas/Fort Worth Phoenix Sky Harbor Intl

12:59 - 18:50ONT Ontario-DUB Dublin

21h 51m2 stops Phoenix Sky Harbor Intl London Heathrow

€761American Airlines

Tue, 11 Aug - Tue, 25 Aug

09:30 - 18:15DUB Dublin-ONT Ontario

16h 45m2 stops Chicago O'Hare Intl Phoenix Sky Harbor Intl

14:27 - 18:40ONT Ontario-DUB Dublin

20h 13m2 stops Dallas/Fort Worth London Heathrow

€848American Airlines

Tue, 11 Aug - Mon, 24 Aug

11:35 - 20:01DUB Dublin-ONT Ontario

16h 26m2 stops Chicago O'Hare Intl San Francisco

19:13 - 07:30ONT Ontario-DUB Dublin

28h 17m3 stops San Francisco Boston Logan Intl Newark

€859United Airlines

Tue, 11 Aug - Mon, 24 Aug

15:25 - 23:11DUB Dublin-ONT Ontario

15h 46m1 stop Seattle/Tacoma Intl

06:02 - 12:20ONT Ontario-DUB Dublin

22h 18m1 stop Seattle/Tacoma Intl

€904Multiple Airlines

Tue, 11 Aug - Wed, 26 Aug

11:00 - 19:53DUB Dublin-ONT Ontario

16h 53m1 stop Atlanta Hartsfield-Jackson

07:05 - 08:45ONT Ontario-DUB Dublin

17h 40m1 stop Atlanta Hartsfield-Jackson

€979Delta

Tue, 11 Aug - Thu, 20 Aug

11:00 - 19:53DUB Dublin-ONT Ontario

16h 53m1 stop Atlanta Hartsfield-Jackson

22:00 - 08:45ONT Ontario-DUB Dublin

26h 45m1 stop Atlanta Hartsfield-Jackson

€989Delta

Tue, 11 Aug - Fri, 21 Aug

11:35 - 22:51DUB Dublin-ONT Ontario

19h 16m1 stop Chicago O'Hare Intl

07:00 - 09:45ONT Ontario-DUB Dublin

18h 45m1 stop Chicago O'Hare Intl

€1,000United Airlines

Fri, 7 Aug - Mon, 24 Aug

12:30 - 23:52DUB Dublin-ONT Ontario

19h 22m2 stops London Heathrow Portland

14:27 - 17:15ONT Ontario-DUB Dublin

18h 48m2 stops Dallas/Fort Worth London Heathrow

€1,010British Airways

Tue, 11 Aug - Thu, 20 Aug

12:00 - 23:34DUB Dublin-ONT Ontario

19h 34m2 stops Minneapolis St Paul Salt Lake City

07:05 - 08:45ONT Ontario-DUB Dublin

17h 40m1 stop Atlanta Hartsfield-Jackson

€1,032Delta

Mon, 10 Aug - Sun, 23 Aug

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British Airways flights from Ireland to Ontario

Our best British Airways deals on Ireland to Ontario flight tickets

British Airways

20 Jan

DUB08:50Dublin

21h 59m

2 stops

ONT22:49Ontario

24 Jan

ONT15:09Ontario

15h 56m

2 stops

DUB15:05Dublin

€616

British Airways

3 Sept

DUB12:40Dublin

14h 07m

1 stop

ONT18:47Ontario

29 Sept

ONT12:37Ontario

13h 08m

1 stop

DUB09:45Dublin

€659

British Airways

20 Nov

DUB13:00Dublin

16h 39m

1 stop

ONT21:39Ontario

29 Nov

ONT10:30Ontario

12h 45m

1 stop

DUB07:15Dublin

€661

KLM flights from Ireland to Ontario

Our best KLM deals on Ireland to Ontario flight tickets

KLM

20 Oct

DUB11:00Dublin

17h 25m

1 stop

ONT20:25Ontario

1 Nov

ONT07:07Ontario

16h 38m

1 stop

DUB07:45Dublin

€734

KLM

20 Oct

DUB11:00Dublin

17h 25m

1 stop

ONT20:25Ontario

1 Nov

ONT07:07Ontario

16h 38m

1 stop

DUB07:45Dublin

€737

KLM

3 Sept

ORK06:15Cork

18h 09m

2 stops

ONT16:24Ontario

30 Sept

ONT17:15Ontario

15h 20m

2 stops

ORK16:35Cork

€767

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

DublinOntario

DUB Dublin - ONT Ontario

DUBONT

Dublin

Tue 8/9

09:50-22:59

2 stops21h 09m

Ontario

Thu 24/9

12:37-09:45

1 stop13h 08m

€611

DublinOntario

DUB Dublin - ONT Ontario

DUBONT

Dublin

Tue 8/9

12:40-22:59

1 stop18h 19m

Ontario

Thu 24/9

12:37-09:45

1 stop13h 08m

€613

DublinOntario

DUB Dublin - ONT Ontario

DUBONT

Dublin

Thu 3/9

12:40-22:59

1 stop18h 19m

Ontario

Fri 11/9

10:25-09:45

1 stop15h 20m

€615

DublinOntario

DUB Dublin - ONT Ontario

DUBONT

Dublin

Wed 20/1

08:50-22:49

2 stops21h 59m

Ontario

Sun 24/1

15:09-15:05

2 stops15h 56m

€616

DublinOntario

DUB Dublin - ONT Ontario

DUBONT

Dublin

Wed 20/1

10:20-22:49

2 stops20h 29m

Ontario

Sun 24/1

15:09-19:40

2 stops20h 31m

€617

Fastest return journey

DublinOntario

DUB Dublin - ONT Ontario

DUBONT

Dublin

Fri 28/8

12:40-18:47

1 stop14h 07m

Ontario

Sat 12/9

12:37-09:45

1 stop13h 08m

€618

DublinOntario

DUB Dublin - ONT Ontario

DUBONT

Dublin

Thu 27/8

11:30-22:38

1 stop19h 08m

Ontario

Mon 31/8

23:59-09:00

1 stop25h 01m

€622

DublinOntario

DUB Dublin - ONT Ontario

DUBONT

Dublin

Fri 28/8

09:50-22:59

2 stops21h 09m

Ontario

Fri 11/9

08:25-09:45

1 stop17h 20m

€625

DublinOntario

DUB Dublin - ONT Ontario

DUBONT

Dublin

Thu 27/8

12:40-18:47

1 stop14h 07m

Ontario

Thu 10/9

10:25-09:45

1 stop15h 20m

€627

DublinOntario

DUB Dublin - ONT Ontario

DUBONT

Dublin

Fri 28/8

12:40-22:59

1 stop18h 19m

Ontario

Thu 10/9

12:37-09:45

1 stop13h 08m

€628

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from Ireland to Ontario

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

Airlines

Other information

What is the cheapest airline that flies from Ireland to Ontario?

JetBlue, British Airways, and American Airlines are the most popular carriers operating from Ireland to Ontario

Which airlines fly to Ontario?

Aer Lingus, British Airways and Iberia are the top three most popular airlines that fly to Ontario from Ireland according to our data. Aer Lingus is the first choice among our users, with 77% of people opting to fly with this airline when travelling to Ontario. Keep in mind that there are 7 different airlines that fly to Ontario on a routine basis, so you have a few additional options to choose from.

Cheap Ireland to Ontario flight deals and tips

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

Fastest flight time	14h 07m
Direct flights	None

The fastest flight from Ireland to Ontario takes 14h 07m

There are no direct flights from Ireland to Ontario. There are no popular flight routes from Ireland to Ontario.

Search flight deals

Frequently asked questions about flying from Ireland to Ontario

When did momondo last update prices for flights from Ireland to Ontario Airport?
Prices for flights from Ireland to Ontario Airport are updated daily.
How old do you have to be to fly from Ireland to Ontario Airport?
The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and stopovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Ireland to Ontario Airport.
What documentation or ID do you need to fly to Ontario Airport?
The necessary travel and health documents for your Ontario Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's licence and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

Why use momondo?

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

Finding the right flight to Ontario from Ireland is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that 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 from Ireland to Ontario with flexible booking policies on momondo?

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

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

Once you have performed a search for Ireland to Ontario flights, momondo helps you find the right one 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 from Ireland to Ontario right now. Can momondo alert me if prices change?

Yes momondo offers price alerts on flights to Ontario from Ireland. 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.