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.

€368 Cheap Flights from Dublin to Ontario in 2026/27

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Cheap return flights

Enter your travel dates to find the best prices.

11:00 - 22:36DUB Dublin-ONT Ontario

19h 36m2 stops London Heathrow Dallas/Fort Worth

07:00 - 12:15ONT Ontario-DUB Dublin

21h 15m2 stops Dallas/Fort Worth London Heathrow

€557British Airways

Sat, 21 Nov - Wed, 25 Nov

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

€560British Airways

Thu, 21 Jan - Mon, 25 Jan

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

22h 18m2 stops London Heathrow Dallas/Fort Worth

07:00 - 09:55ONT Ontario-DUB Dublin

18h 55m2 stops Dallas/Fort Worth London Heathrow

€561British 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

€563American Airlines

Thu, 5 Nov - Sat, 21 Nov

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

€564British Airways

Thu, 21 Jan - Mon, 25 Jan

11:30 - 22:36DUB Dublin-ONT Ontario

19h 06m2 stops Philadelphia Dallas/Fort Worth

14:09 - 07:10ONT Ontario-DUB Dublin

33h 01m1 stop Dallas/Fort Worth

€565American Airlines

Sat, 21 Nov - Wed, 25 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

€567American Airlines

Thu, 5 Nov - Sat, 21 Nov

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

20h 16m2 stops Philadelphia Dallas/Fort Worth

10:37 - 07:10ONT Ontario-DUB Dublin

12h 33m1 stop Dallas/Fort Worth

€568American Airlines

Wed, 11 Nov - Mon, 30 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

€569American Airlines

Thu, 5 Nov - Sat, 21 Nov

12:55 - 22:36DUB Dublin-ONT Ontario

17h 41m1 stop Dallas/Fort Worth

14:09 - 17:05ONT Ontario-DUB Dublin

18h 56m2 stops Dallas/Fort Worth London Heathrow

€577American Airlines

Sat, 21 Nov - Mon, 30 Nov

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American Airlines flights from Dublin to Ontario

Our best American Airlines deals on Dublin to Ontario flight tickets

American Airlines

5 Nov

DUB12:55Dublin

16h 37m

1 stop

ONT21:32Ontario

21 Nov

ONT23:59Ontario

23h 11m

1 stop

DUB07:10Dublin

€563

American Airlines

21 Nov

DUB11:30Dublin

19h 06m

2 stops

ONT22:36Ontario

29 Nov

ONT23:59Ontario

23h 11m

1 stop

DUB07:10Dublin

€565

American Airlines

5 Nov

DUB12:55Dublin

16h 37m

1 stop

ONT21:32Ontario

21 Nov

ONT23:59Ontario

23h 11m

1 stop

DUB07:10Dublin

€567

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

€612

United Airlines

21 Jan

DUB10:40Dublin

16h 04m

1 stop

ONT18:44Ontario

25 Jan

ONT07:00Ontario

17h 10m

1 stop

DUB08:10Dublin

€613

United Airlines

21 Jan

DUB09:00Dublin

19h 26m

2 stops

ONT20:26Ontario

25 Jan

ONT07:00Ontario

17h 10m

1 stop

DUB08:10Dublin

€614

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

DublinOntario

DUB Dublin - ONT Ontario

DUBONT

Dublin

Sat 21/11

11:00-22:36

2 stops19h 36m

Ontario

Wed 25/11

07:00-12:15

2 stops21h 15m

€557

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

€560

DublinOntario

DUB Dublin - ONT Ontario

DUBONT

Dublin

Thu 21/1

08:50-23:08

2 stops22h 18m

Ontario

Mon 25/1

07:00-09:55

2 stops18h 55m

€561

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

€563

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

€564

DublinOntario

DUB Dublin - ONT Ontario

DUBONT

Dublin

Sat 21/11

11:30-22:36

2 stops19h 06m

Ontario

Wed 25/11

14:09-07:10

1 stop33h 01m

€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

€567

Fastest return journey

DublinOntario

DUB Dublin - ONT Ontario

DUBONT

Dublin

Wed 11/11

11:30-23:46

2 stops20h 16m

Ontario

Mon 30/11

10:37-07:10

1 stop12h 33m

€568

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

€569

DublinOntario

DUB Dublin - ONT Ontario

DUBONT

Dublin

Sat 21/11

12:55-22:36

1 stop17h 41m

Ontario

Mon 30/11

14:09-17:05

2 stops18h 56m

€577

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 JetBlue 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 80% 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	€368
Fastest flight time	16h 31m
Direct flights	None

The best one-way flight to Ontario from Dublin in the past 72 hours is €368. The best return flight deal from Dublin to Ontario found on momondo in the last 72 hours is €557.

The fastest flight from Dublin to Ontario takes 16h 31m

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?
A flight from Dublin to Ontario will travel around 8266.8 km. Flights usually cover this in 16h 31m, 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.