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

Prices for flights from Dublin Airport to Ontario Airport refresh daily.

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

The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Dublin Airport 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 license, 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.

£324 Cheap Flights from Dublin to Ontario in 2026/27

Find the cheapest flights from Dublin to Los Angeles

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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

£464British 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

£465British Airways

Thu, 21 Jan - Mon, 25 Jan

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

£465British Airways

Thu, 21 Jan - Mon, 25 Jan

09:55 - 18:34DUB Dublin-ONT Ontario

16h 39m1 stop Atlanta Hartsfield-Jackson

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

16h 40m1 stop Atlanta Hartsfield-Jackson

£467KLM

Mon, 16 Nov - Wed, 2 Dec

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

£468American Airlines

Thu, 5 Nov - Sat, 21 Nov

09:55 - 19:30DUB Dublin-ONT Ontario

17h 35m1 stop Atlanta Hartsfield-Jackson

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

16h 40m1 stop Atlanta Hartsfield-Jackson

£468KLM

Sat, 7 Nov - Mon, 23 Nov

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

15h 22m1 stop Atlanta Hartsfield-Jackson

12:00 - 08:45ONT Ontario-DUB Dublin

12h 45m1 stop Atlanta Hartsfield-Jackson

£471Multiple Airlines

Wed, 14 Apr - Mon, 26 Apr

09:40 - 20:54DUB Dublin-ONT Ontario

19h 14m1 stop Atlanta Hartsfield-Jackson

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

16h 40m1 stop Atlanta Hartsfield-Jackson

£474KLM

Wed, 25 Nov - Wed, 2 Dec

11:45 - 22:35DUB Dublin-ONT Ontario

18h 50m1 stop Dallas/Fort Worth

07:30 - 09:45ONT Ontario-DUB Dublin

18h 15m1 stop Dallas/Fort Worth

£514Iberia

Tue, 13 Apr - Tue, 27 Apr

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

15h 22m1 stop Atlanta Hartsfield-Jackson

12:00 - 08:45ONT Ontario-DUB Dublin

12h 45m1 stop Atlanta Hartsfield-Jackson

£526Multiple Airlines

Mon, 12 Apr - Mon, 26 Apr

Cheap last-minute flights

Enter your travel dates to find the best prices.

09:50 - 12:46DUB Dublin-ONT Ontario

34h 56m2 stops Vancouver Intl Denver Intl

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

17h 10m2 stops San Francisco Toronto Pearson Intl

£697Air Canada

Sun, 18 Oct - Sat, 31 Oct

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

16h 31m1 stop Dallas/Fort Worth

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

13h 45m1 stop Dallas/Fort Worth

£1,023Iberia

Sun, 18 Oct - Sat, 31 Oct

05:55 - 23:42DUB Dublin-ONT Ontario

25h 47m2 stops Istanbul Seattle/Tacoma Intl

14:13 - 23:05ONT Ontario-DUB Dublin

24h 52m2 stops Seattle/Tacoma Intl Istanbul

£1,147Multiple Airlines

Mon, 19 Oct - Thu, 22 Oct

12:15 - 23:54DUB Dublin-ONT Ontario

19h 39m2 stops Reykjavik Keflavik Intl Portland

08:05 - 10:15ONT Ontario-DUB Dublin

18h 10m2 stops Denver Intl Reykjavik Keflavik Intl

£1,469Multiple Airlines

Sun, 18 Oct - Mon, 2 Nov

12:15 - 23:54DUB Dublin-ONT Ontario

19h 39m2 stops Reykjavik Keflavik Intl Portland

08:05 - 10:15ONT Ontario-DUB Dublin

18h 10m2 stops Denver Intl Reykjavik Keflavik Intl

£1,887Multiple Airlines

Sun, 18 Oct - Mon, 2 Nov

12:15 - 23:42DUB Dublin-ONT Ontario

19h 27m2 stops Reykjavik Keflavik Intl Seattle/Tacoma Intl

10:40 - 10:15ONT Ontario-DUB Dublin

15h 35m2 stops Portland Reykjavik Keflavik Intl

£2,131Multiple Airlines

Fri, 23 Oct - Thu, 5 Nov

13:35 - 12:46DUB Dublin-ONT Ontario

31h 11m2 stops Newark Denver Intl

06:59 - 08:10ONT Ontario-DUB Dublin

18h 11m1 stop Chicago O'Hare Intl

£3,019United Airlines

Fri, 23 Oct - Sat, 31 Oct

12:15 - 23:54DUB Dublin-ONT Ontario

19h 39m2 stops Reykjavik Keflavik Intl Portland

11:29 - 11:15ONT Ontario-DUB Dublin

15h 46m2 stops Portland Reykjavik Keflavik Intl

£3,401Multiple Airlines

Fri, 23 Oct - Sat, 24 Oct

09:50 - 20:31DUB Dublin-ONT Ontario

18h 41m3 stops Vancouver Intl Seattle/Tacoma Intl San Francisco

05:00 - 07:30ONT Ontario-DUB Dublin

19h 30m2 stops Denver Intl Newark

£9,908United Airlines

Fri, 23 Oct - Sat, 31 Oct

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United Airlines flights from Dublin to Ontario

Our best United Airlines deals on Dublin to Ontario flight tickets

United Airlines

30 Jan

DUB09:00Dublin

20h 00m

2 stops

ONT21:00Ontario

6 Feb

ONT07:00Ontario

16h 30m

2 stops

DUB07:30Dublin

£531

United Airlines

21 Jan

DUB09:00Dublin

19h 25m

2 stops

ONT20:25Ontario

25 Jan

ONT07:00Ontario

17h 10m

1 stop

DUB08:10Dublin

£532

United Airlines

21 Jan

DUB10:40Dublin

16h 10m

1 stop

ONT18:50Ontario

25 Jan

ONT07:00Ontario

17h 10m

1 stop

DUB08:10Dublin

£533

British Airways flights from Dublin to Ontario

Our best British Airways deals on Dublin to Ontario flight tickets

British Airways

21 Jan

DUB08:50Dublin

22h 23m

2 stops

ONT23:13Ontario

25 Jan

ONT12:45Ontario

18h 40m

2 stops

DUB15:25Dublin

£464

British Airways

21 Jan

DUB08:50Dublin

21h 25m

2 stops

ONT22:15Ontario

25 Jan

ONT10:38Ontario

20h 47m

2 stops

DUB15:25Dublin

£465

British Airways

21 Jan

DUB08:50Dublin

22h 23m

2 stops

ONT23:13Ontario

25 Jan

ONT12:45Ontario

18h 40m

2 stops

DUB15:25Dublin

£465

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

£464

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

£465

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

£465

DublinOntario

DUB Dublin - ONT Ontario

DUBONT

Dublin

Mon 16/11

09:55-18:34

1 stop16h 39m

Ontario

Wed 2/12

07:05-07:45

1 stop16h 40m

£467

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

£468

DublinOntario

DUB Dublin - ONT Ontario

DUBONT

Dublin

Sat 7/11

09:55-19:30

1 stop17h 35m

Ontario

Mon 23/11

07:05-07:45

1 stop16h 40m

£468

Fastest return journey

DublinOntario

DUB Dublin - ONT Ontario

DUBONT

Dublin

Wed 14/4

11:00-18:22

1 stop15h 22m

Ontario

Mon 26/4

12:00-08:45

1 stop12h 45m

£471

DublinOntario

DUB Dublin - ONT Ontario

DUBONT

Dublin

Wed 25/11

09:40-20:54

1 stop19h 14m

Ontario

Wed 2/12

07:05-07:45

1 stop16h 40m

£474

DublinOntario

DUB Dublin - ONT Ontario

DUBONT

Dublin

Tue 13/4

11:45-22:35

1 stop18h 50m

Ontario

Tue 27/4

07:30-09:45

1 stop18h 15m

£514

DublinOntario

DUB Dublin - ONT Ontario

DUBONT

Dublin

Mon 12/4

11:00-18:22

1 stop15h 22m

Ontario

Mon 26/4

12:00-08:45

1 stop12h 45m

£526

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 Delta 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 78% of people opting to fly with this airline when travelling to Ontario. Keep in mind that there are 8 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	£324
Fastest flight time	15h 14m
Direct flights	None

The best one-way flight to Ontario from Dublin in the past 72 hours is £324. The best return flight deal from Dublin to Ontario found on momondo in the last 72 hours is £464.

The fastest flight from Dublin to Ontario takes 15h 14m

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

Search flight deals

Frequently asked questions about flying from Dublin to Ontario

How far is Dublin to Ontario by plane?
There are 5136.8 mi between Dublin and Ontario. 15h 14m is a normal flight duration for this route.
When did momondo last update prices for flights from Dublin Airport to Ontario Airport?
Prices for flights from Dublin Airport to Ontario Airport refresh daily.
How old do you have to be to fly from Dublin Airport to Ontario Airport?
The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Dublin Airport 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 license, 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 from Dublin to Ontario?

It is quick and easy to find Dublin to Ontario flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to Ontario that suits you.

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

Yes. momondo enables you to select and highlight flights to Ontario from Dublin with this policy.

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

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to Ontario from Dublin.

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

Yes. momondo can track prices for Dublin to Ontario flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.