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

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

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

The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Dublin Airport to Ontario Airport.

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

The travel and health documents you'll need for your trip to Ontario Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's licence and a passport that is valid for six months after your intended arrival at Ontario Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

€387 Cheap Flights from Dublin to Ontario in 2026/27

Find the cheapest flights from Dublin to Los Angeles

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One-way

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Cheap return flights

Enter your travel dates to find the best prices.

08:50 - 23:13DUB Dublin-ONT Ontario

22h 23m2 stops London Heathrow Dallas/Fort Worth

12:45 - 15:25ONT Ontario-DUB Dublin

18h 40m2 stops Dallas/Fort Worth London Heathrow

€553British Airways

Thu, 21 Jan - Mon, 25 Jan

08:50 - 22:15DUB Dublin-ONT Ontario

21h 25m2 stops London Heathrow Phoenix Sky Harbor Intl

10:38 - 15:25ONT Ontario-DUB Dublin

20h 47m2 stops Dallas/Fort Worth London Heathrow

€554British Airways

Thu, 21 Jan - Mon, 25 Jan

12:55 - 21:32DUB Dublin-ONT Ontario

16h 37m1 stop Dallas/Fort Worth

23:59 - 07:10ONT Ontario-DUB Dublin

23h 11m1 stop Dallas/Fort Worth

€557American Airlines

Thu, 5 Nov - Sat, 21 Nov

12:55 - 22:57DUB Dublin-ONT Ontario

18h 02m1 stop Dallas/Fort Worth

07:00 - 07:10ONT Ontario-DUB Dublin

16h 10m1 stop Dallas/Fort Worth

€558Iberia

Tue, 3 Nov - Mon, 16 Nov

12:55 - 21:32DUB Dublin-ONT Ontario

16h 37m1 stop Dallas/Fort Worth

23:59 - 07:10ONT Ontario-DUB Dublin

23h 11m1 stop Dallas/Fort Worth

€565American Airlines

Thu, 5 Nov - Sat, 21 Nov

12:55 - 21:32DUB Dublin-ONT Ontario

16h 37m1 stop Dallas/Fort Worth

23:59 - 07:10ONT Ontario-DUB Dublin

23h 11m1 stop Dallas/Fort Worth

€566American Airlines

Thu, 5 Nov - Sat, 21 Nov

12:55 - 21:11DUB Dublin-ONT Ontario

15h 16m1 stop Dallas/Fort Worth

14:22 - 16:55ONT Ontario-DUB Dublin

18h 33m2 stops Dallas/Fort Worth London Heathrow

€576Multiple Airlines

Fri, 30 Oct - Tue, 3 Nov

12:55 - 13:30DUB Dublin-ONT Ontario

31h 35m1 stop Dallas/Fort Worth

12:42 - 07:10ONT Ontario-DUB Dublin

34h 28m1 stop Dallas/Fort Worth

€582American Airlines

Fri, 30 Oct - Tue, 3 Nov

10:50 - 21:32DUB Dublin-ONT Ontario

18h 42m2 stops London Heathrow Dallas/Fort Worth

10:30 - 07:10ONT Ontario-DUB Dublin

12h 40m1 stop Dallas/Fort Worth

€583American Airlines

Thu, 5 Nov - Mon, 9 Nov

11:30 - 23:46DUB Dublin-ONT Ontario

20h 16m2 stops Philadelphia Dallas/Fort Worth

14:22 - 15:25ONT Ontario-DUB Dublin

17h 03m2 stops Dallas/Fort Worth London Heathrow

€608American Airlines

Thu, 5 Nov - Mon, 9 Nov

Cheap last-minute flights

Enter your travel dates to find the best prices.

09:50 - 22:51DUB Dublin-ONT Ontario

21h 01m2 stops Vancouver Intl San Francisco

05:00 - 06:10ONT Ontario-DUB Dublin

18h 10m2 stops Denver Intl Toronto Pearson Intl

€728Air Canada

Fri, 16 Oct - Sun, 25 Oct

11:35 - 22:49DUB Dublin-ONT Ontario

19h 14m1 stop Chicago O'Hare Intl

07:00 - 08:10ONT Ontario-DUB Dublin

17h 10m1 stop Chicago O'Hare Intl

€731Lufthansa

Mon, 19 Oct - Sat, 7 Nov

11:35 - 22:49DUB Dublin-ONT Ontario

19h 14m1 stop Chicago O'Hare Intl

07:00 - 08:10ONT Ontario-DUB Dublin

17h 10m1 stop Chicago O'Hare Intl

€754Lufthansa

Mon, 19 Oct - Fri, 6 Nov

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

18h 00m1 stop Dallas/Fort Worth

07:00 - 07:10ONT Ontario-DUB Dublin

17h 10m1 stop Dallas/Fort Worth

€830Iberia

Tue, 20 Oct - Thu, 29 Oct

11:00 - 18:21DUB Dublin-ONT Ontario

15h 21m1 stop Atlanta Hartsfield-Jackson

12:16 - 07:45ONT Ontario-DUB Dublin

12h 29m1 stop Atlanta Hartsfield-Jackson

€847Delta

Fri, 16 Oct - Thu, 29 Oct

11:00 - 20:25DUB Dublin-ONT Ontario

17h 25m1 stop Atlanta Hartsfield-Jackson

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

16h 38m1 stop Atlanta Hartsfield-Jackson

€889KLM

Tue, 20 Oct - Fri, 6 Nov

12:40 - 18:44DUB Dublin-ONT Ontario

14h 04m1 stop Dallas/Fort Worth

10:25 - 07:10ONT Ontario-DUB Dublin

13h 45m1 stop Dallas/Fort Worth

€938American Airlines

Fri, 16 Oct - Sun, 25 Oct

11:00 - 20:25DUB Dublin-ONT Ontario

17h 25m1 stop Atlanta Hartsfield-Jackson

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

16h 38m1 stop Atlanta Hartsfield-Jackson

€957KLM

Tue, 20 Oct - Thu, 5 Nov

12:40 - 21:11DUB Dublin-ONT Ontario

16h 31m1 stop Dallas/Fort Worth

12:43 - 09:45ONT Ontario-DUB Dublin

13h 02m1 stop Dallas/Fort Worth

€1,026Iberia

Fri, 16 Oct - Fri, 23 Oct

11:00 - 18:22DUB Dublin-ONT Ontario

15h 22m1 stop Atlanta Hartsfield-Jackson

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

16h 38m1 stop Atlanta Hartsfield-Jackson

€1,168KLM

Mon, 19 Oct - Fri, 6 Nov

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Delta flights from Dublin to Ontario

Our best Delta deals on Dublin to Ontario flight tickets

Delta

24 Nov

DUB13:25Dublin

29h 38m

2 stops

ONT11:03Ontario

1 Dec

ONT06:00Ontario

24h 30m

2 stops

DUB14:30Dublin

€627

Delta

29 Oct

DUB13:25Dublin

28h 41m

2 stops

ONT11:06Ontario

2 Nov

ONT06:00Ontario

24h 30m

2 stops

DUB14:30Dublin

€652

Delta

16 Oct

DUB11:00Dublin

15h 21m

1 stop

ONT18:21Ontario

29 Oct

ONT12:16Ontario

12h 29m

1 stop

DUB07:45Dublin

€847

KLM flights from Dublin to Ontario

Our best KLM deals on Dublin to Ontario flight tickets

KLM

15 Feb

DUB09:40Dublin

20h 34m

1 stop

ONT22:14Ontario

1 Mar

ONT07:00Ontario

16h 45m

1 stop

DUB07:45Dublin

€641

KLM

20 Oct

DUB11:00Dublin

17h 25m

1 stop

ONT20:25Ontario

6 Nov

ONT07:07Ontario

16h 38m

1 stop

DUB07:45Dublin

€889

KLM

20 Oct

DUB11:00Dublin

17h 25m

1 stop

ONT20:25Ontario

5 Nov

ONT07:07Ontario

16h 38m

1 stop

DUB07:45Dublin

€957

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

DublinOntario

DUB Dublin - ONT Ontario

DUBONT

Dublin

Thu 21/1

08:50-23:13

2 stops22h 23m

Ontario

Mon 25/1

12:45-15:25

2 stops18h 40m

€553

DublinOntario

DUB Dublin - ONT Ontario

DUBONT

Dublin

Thu 21/1

08:50-22:15

2 stops21h 25m

Ontario

Mon 25/1

10:38-15:25

2 stops20h 47m

€554

DublinOntario

DUB Dublin - ONT Ontario

DUBONT

Dublin

Thu 5/11

12:55-21:32

1 stop16h 37m

Ontario

Sat 21/11

23:59-07:10

1 stop23h 11m

€557

DublinOntario

DUB Dublin - ONT Ontario

DUBONT

Dublin

Tue 3/11

12:55-22:57

1 stop18h 02m

Ontario

Mon 16/11

07:00-07:10

1 stop16h 10m

€558

DublinOntario

DUB Dublin - ONT Ontario

DUBONT

Dublin

Thu 5/11

12:55-21:32

1 stop16h 37m

Ontario

Sat 21/11

23:59-07:10

1 stop23h 11m

€565

DublinOntario

DUB Dublin - ONT Ontario

DUBONT

Dublin

Thu 5/11

12:55-21:32

1 stop16h 37m

Ontario

Sat 21/11

23:59-07:10

1 stop23h 11m

€566

DublinOntario

DUB Dublin - ONT Ontario

DUBONT

Dublin

Fri 30/10

12:55-21:11

1 stop15h 16m

Ontario

Tue 3/11

14:22-16:55

2 stops18h 33m

€576

DublinOntario

DUB Dublin - ONT Ontario

DUBONT

Dublin

Fri 30/10

12:55-13:30

1 stop31h 35m

Ontario

Tue 3/11

12:42-07:10

1 stop34h 28m

€582

Fastest return journey

DublinOntario

DUB Dublin - ONT Ontario

DUBONT

Dublin

Thu 5/11

10:50-21:32

2 stops18h 42m

Ontario

Mon 9/11

10:30-07:10

1 stop12h 40m

€583

DublinOntario

DUB Dublin - ONT Ontario

DUBONT

Dublin

Thu 5/11

11:30-23:46

2 stops20h 16m

Ontario

Mon 9/11

14:22-15:25

2 stops17h 03m

€608

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 Dublin 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

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

KLM and British Airways are the most popular carriers operating from Dublin 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 Dublin according to our data. Aer Lingus is the first choice among our users, with 82% 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.

When to book flights from Dublin to Ontario

Are you open to changing your travel dates? Check out the ideal times to fly from Dublin to Ontario according to our flight data. Find out which month and days have the cheapest flights.

Estimated return price

Cheap Dublin to Ontario (DUB to ONT) flight deals and tips

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

Best price found	€387
Fastest flight time	15h 56m
Direct flights	None

The best one-way flight to Ontario from Dublin in the past 72 hours is €387. The best return flight deal from Dublin to Ontario found on momondo in the last 72 hours is €553.

The fastest flight from Dublin to Ontario takes 15h 56m

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

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Frequently asked questions about flying from Dublin to Ontario

How far is Dublin to Ontario by plane?
A flight from Dublin to Ontario will travel around 8266.8 km. Flights usually cover this in 15h 56m, depending on flying conditions and air traffic around both airports.
When did momondo last update prices for flights from Dublin Airport to Ontario Airport?
Prices for flights from Dublin Airport to Ontario Airport are refreshed on a daily basis.
How old do you have to be to fly from Dublin Airport to Ontario Airport?
The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Dublin Airport to Ontario Airport.
What documentation or ID do you need to fly to Ontario Airport?
The travel and health documents you'll need for your trip to Ontario Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's licence and a passport that is valid for six months after your intended arrival at Ontario Airport. It is always advisable to seek 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 Dublin to Ontario?

Finding the right flight to Ontario from Dublin 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 Dublin to Ontario with flexible booking policies on momondo?

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

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

Once all potential Dublin to Ontario flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

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

If you are not ready to book a flight from Dublin to Ontario now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Ontario and let you know when they change.