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.

£462 Cheap Flights from Dublin to Ontario in 2026

Find the cheapest flights from Dublin to Los Angeles

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One-way

Last minute

Cheap return flights

Enter your travel dates to find the best prices.

10:50 - 21:59DUB Dublin-ONT Ontario

19h 09m2 stops London Heathrow Phoenix Sky Harbor Intl

07:00 - 12:10ONT Ontario-DUB Dublin

21h 10m2 stops Dallas/Fort Worth London Heathrow

£475British Airways

Thu, 14 Jan - Sun, 17 Jan

10:50 - 21:59DUB Dublin-ONT Ontario

19h 09m2 stops London Heathrow Phoenix Sky Harbor Intl

07:00 - 12:10ONT Ontario-DUB Dublin

21h 10m2 stops Dallas/Fort Worth London Heathrow

£476British Airways

Thu, 14 Jan - Sun, 17 Jan

10:50 - 21:59DUB Dublin-ONT Ontario

19h 09m2 stops London Heathrow Phoenix Sky Harbor Intl

07:00 - 12:35ONT Ontario-DUB Dublin

21h 35m2 stops Dallas/Fort Worth London Heathrow

£477British Airways

Thu, 21 Jan - Mon, 25 Jan

09:00 - 20:26DUB Dublin-ONT Ontario

19h 26m2 stops Toronto Pearson Intl San Francisco

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

17h 10m1 stop Chicago O'Hare Intl

£603United Airlines

Thu, 21 Jan - Mon, 25 Jan

09:00 - 20:26DUB Dublin-ONT Ontario

19h 26m2 stops Toronto Pearson Intl San Francisco

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

17h 10m1 stop Chicago O'Hare Intl

£604United Airlines

Thu, 21 Jan - Mon, 25 Jan

10:40 - 18:44DUB Dublin-ONT Ontario

16h 04m1 stop Chicago O'Hare Intl

06:45 - 08:10ONT Ontario-DUB Dublin

17h 25m1 stop Chicago O'Hare Intl

£605United Airlines

Fri, 12 Feb - Wed, 17 Feb

09:40 - 20:44DUB Dublin-ONT Ontario

19h 04m1 stop Atlanta Hartsfield-Jackson

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

16h 40m1 stop Atlanta Hartsfield-Jackson

£607KLM

Mon, 23 Nov - Mon, 7 Dec

09:00 - 20:26DUB Dublin-ONT Ontario

19h 26m2 stops Toronto Pearson Intl San Francisco

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

17h 10m1 stop Chicago O'Hare Intl

£625United Airlines

Thu, 14 Jan - Sun, 17 Jan

10:40 - 18:44DUB Dublin-ONT Ontario

16h 04m1 stop Chicago O'Hare Intl

06:00 - 08:10ONT Ontario-DUB Dublin

18h 10m2 stops Houston George Bush Intcntl Chicago O'Hare Intl

£627United Airlines

Thu, 14 Jan - Sun, 17 Jan

10:40 - 18:44DUB Dublin-ONT Ontario

16h 04m1 stop Chicago O'Hare Intl

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

17h 10m1 stop Chicago O'Hare Intl

£628United Airlines

Thu, 14 Jan - Sun, 17 Jan

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British Airways flights from Dublin to Ontario

Our best British Airways deals on Dublin to Ontario flight tickets

British Airways

14 Jan

DUB10:50Dublin

19h 09m

2 stops

ONT21:59Ontario

17 Jan

ONT07:00Ontario

21h 10m

2 stops

DUB12:10Dublin

£475

British Airways

14 Jan

DUB10:50Dublin

19h 09m

2 stops

ONT21:59Ontario

17 Jan

ONT07:00Ontario

21h 10m

2 stops

DUB12:10Dublin

£476

British Airways

21 Jan

DUB10:50Dublin

19h 09m

2 stops

ONT21:59Ontario

25 Jan

ONT07:00Ontario

21h 35m

2 stops

DUB12:35Dublin

£477

United Airlines flights from Dublin to Ontario

Our best United Airlines deals on Dublin to Ontario flight tickets

United Airlines

21 Jan

DUB09:00Dublin

19h 26m

2 stops

ONT20:26Ontario

25 Jan

ONT07:00Ontario

17h 10m

1 stop

DUB08:10Dublin

£602

United Airlines

21 Jan

DUB09:00Dublin

19h 26m

2 stops

ONT20:26Ontario

25 Jan

ONT07:00Ontario

17h 10m

1 stop

DUB08:10Dublin

£604

United Airlines

12 Feb

DUB10:40Dublin

16h 04m

1 stop

ONT18:44Ontario

17 Feb

ONT06:45Ontario

17h 25m

1 stop

DUB08:10Dublin

£605

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

DublinOntario

DUB Dublin - ONT Ontario

DUBONT

Dublin

Thu 14/1

10:50-21:59

2 stops19h 09m

Ontario

Sun 17/1

07:00-12:10

2 stops21h 10m

£475

DublinOntario

DUB Dublin - ONT Ontario

DUBONT

Dublin

Thu 14/1

10:50-21:59

2 stops19h 09m

Ontario

Sun 17/1

07:00-12:10

2 stops21h 10m

£476

DublinOntario

DUB Dublin - ONT Ontario

DUBONT

Dublin

Thu 21/1

10:50-21:59

2 stops19h 09m

Ontario

Mon 25/1

07:00-12:35

2 stops21h 35m

£477

DublinOntario

DUB Dublin - ONT Ontario

DUBONT

Dublin

Thu 21/1

09:00-20:26

2 stops19h 26m

Ontario

Mon 25/1

07:00-08:10

1 stop17h 10m

£602

DublinOntario

DUB Dublin - ONT Ontario

DUBONT

Dublin

Thu 21/1

09:00-20:26

2 stops19h 26m

Ontario

Mon 25/1

07:00-08:10

1 stop17h 10m

£604

DublinOntario

DUB Dublin - ONT Ontario

DUBONT

Dublin

Fri 12/2

10:40-18:44

1 stop16h 04m

Ontario

Wed 17/2

06:45-08:10

1 stop17h 25m

£605

DublinOntario

DUB Dublin - ONT Ontario

DUBONT

Dublin

Mon 23/11

09:40-20:44

1 stop19h 04m

Ontario

Mon 7/12

07:05-07:45

1 stop16h 40m

£607

DublinOntario

DUB Dublin - ONT Ontario

DUBONT

Dublin

Thu 14/1

09:00-20:26

2 stops19h 26m

Ontario

Sun 17/1

07:00-08:10

1 stop17h 10m

£625

DublinOntario

DUB Dublin - ONT Ontario

DUBONT

Dublin

Thu 14/1

10:40-18:44

1 stop16h 04m

Ontario

Sun 17/1

06:00-08:10

2 stops18h 10m

£627

Fastest return journey

DublinOntario

DUB Dublin - ONT Ontario

DUBONT

Dublin

Thu 14/1

10:40-18:44

1 stop16h 04m

Ontario

Sun 17/1

07:00-08:10

1 stop17h 10m

£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 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?

British Airways, American Airlines, and KLM 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 77% of people opting to fly with this airline when travelling to Ontario. Keep in mind that there are 9 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	£462
Fastest flight time	21h 01m
Direct flights	None

The best one-way flight to Ontario from Dublin in the past 72 hours is £462. The best return flight deal from Dublin to Ontario found on momondo in the last 72 hours is £475.

The fastest flight from Dublin to Ontario takes 21h 01m

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. 21h 01m 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.