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.

€428 Cheap Flights from Dublin to Ontario in 2026

Find the cheapest flights from Dublin to Los Angeles

Return

One-way

Last minute

Cheap return flights

Enter your travel dates to find the best prices.

15:25 - 23:42DUB Dublin-ONT Ontario

16h 17m1 stop Seattle/Tacoma Intl

13:52 - 11:45ONT Ontario-DUB Dublin

13h 53m1 stop San Francisco

€428Aer Lingus

Mon, 5 Oct - Mon, 12 Oct

12:40 - 22:37DUB Dublin-ONT Ontario

17h 57m1 stop Dallas/Fort Worth

14:22 - 09:45ONT Ontario-DUB Dublin

35h 23m1 stop Dallas/Fort Worth

€618Iberia

Fri, 2 Oct - Fri, 9 Oct

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

€623Multiple Airlines

Thu, 3 Sep - Wed, 16 Sep

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

18h 19m1 stop Dallas/Fort Worth

12:33 - 09:45ONT Ontario-DUB Dublin

13h 12m1 stop Dallas/Fort Worth

€623Multiple Airlines

Fri, 4 Sep - Tue, 8 Sep

13:00 - 23:52DUB Dublin-ONT Ontario

18h 52m1 stop Dallas/Fort Worth

10:30 - 07:15ONT Ontario-DUB Dublin

12h 45m1 stop Dallas/Fort Worth

€624Multiple Airlines

Thu, 19 Nov - Mon, 23 Nov

20:40 - 18:57DUB Dublin-ONT Ontario

30h 17m2 stops London Heathrow Dallas/Fort Worth

13:23 - 15:05ONT Ontario-DUB Dublin

17h 42m2 stops Phoenix Sky Harbor Intl London Heathrow

€626British Airways

Mon, 30 Nov - Sat, 12 Dec

20:40 - 18:57DUB Dublin-ONT Ontario

30h 17m2 stops London Heathrow Dallas/Fort Worth

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

16h 53m2 stops Dallas/Fort Worth London Heathrow

€626British Airways

Mon, 30 Nov - Fri, 11 Dec

11:00 - 22:57DUB Dublin-ONT Ontario

19h 57m2 stops London Heathrow Dallas/Fort Worth

10:30 - 17:00ONT Ontario-DUB Dublin

22h 30m2 stops Dallas/Fort Worth London Heathrow

€626British Airways

Sat, 5 Dec - Wed, 9 Dec

09:00 - 23:46DUB Dublin-ONT Ontario

22h 46m2 stops London Heathrow Dallas/Fort Worth

09:29 - 17:35ONT Ontario-DUB Dublin

24h 06m2 stops Phoenix Sky Harbor Intl London Heathrow

€626British Airways

Wed, 2 Dec - Thu, 10 Dec

20:40 - 23:46DUB Dublin-ONT Ontario

35h 06m2 stops London Heathrow Dallas/Fort Worth

14:22 - 17:35ONT Ontario-DUB Dublin

19h 13m2 stops Dallas/Fort Worth London Heathrow

€626British Airways

Thu, 3 Dec - Thu, 10 Dec

Cheap last-minute flights

Enter your travel dates to find the best prices.

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

14h 07m1 stop Dallas/Fort Worth

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

17h 20m1 stop Dallas/Fort Worth

€632American Airlines

Thu, 27 Aug - Fri, 11 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

€632American Airlines

Thu, 27 Aug - Wed, 9 Sep

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

14h 07m1 stop Dallas/Fort Worth

12:33 - 09:45ONT Ontario-DUB Dublin

13h 12m1 stop Dallas/Fort Worth

€632American Airlines

Thu, 27 Aug - Mon, 31 Aug

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

€632American Airlines

Thu, 27 Aug - Thu, 10 Sep

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

14h 07m1 stop Dallas/Fort Worth

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

17h 20m1 stop Dallas/Fort Worth

€632American 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

€633American Airlines

Thu, 27 Aug - Wed, 9 Sep

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

€651British Airways

Thu, 27 Aug - Wed, 9 Sep

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

€657British Airways

Thu, 27 Aug - Wed, 9 Sep

11:00 - 21:52DUB Dublin-ONT Ontario

18h 52m1 stop Atlanta Hartsfield-Jackson

13:06 - 12:40ONT Ontario-DUB Dublin

15h 34m2 stops Salt Lake City Amsterdam Schiphol

€790Delta

Thu, 27 Aug - Thu, 3 Sep

12:00 - 21:52DUB Dublin-ONT Ontario

17h 52m2 stops Minneapolis St Paul Atlanta Hartsfield-Jackson

13:06 - 12:40ONT Ontario-DUB Dublin

15h 34m2 stops Salt Lake City Amsterdam Schiphol

€790Delta

Thu, 27 Aug - Thu, 3 Sep

Save money when you book flights with momondo

Big names, great deals

Search 100s of travel sites to compare prices.

Filter for what you want

Free Wi-Fi? Stopover? Instantly customise your results.

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Not ready to book? to track prices.

Search flight deals

Iberia flights from Dublin to Ontario

Our best Iberia deals on Dublin to Ontario flight tickets

Iberia

2 Oct

DUB12:40Dublin

17h 57m

1 stop

ONT22:37Ontario

9 Oct

ONT14:22Ontario

35h 23m

1 stop

DUB09:45Dublin

€618

Iberia

2 Sept

DUB09:50Dublin

21h 09m

2 stops

ONT22:59Ontario

6 Sept

ONT10:29Ontario

15h 16m

1 stop

DUB09:45Dublin

€631

Iberia

5 Sept

DUB09:50Dublin

21h 09m

2 stops

ONT22:59Ontario

9 Sept

ONT10:25Ontario

15h 20m

1 stop

DUB09:45Dublin

€634

American Airlines flights from Dublin to Ontario

Our best American Airlines deals on Dublin to Ontario flight tickets

American Airlines

3 Sept

DUB12:40Dublin

14h 07m

1 stop

ONT18:47Ontario

16 Sept

ONT12:37Ontario

13h 08m

1 stop

DUB09:45Dublin

€632

American Airlines

2 Oct

DUB11:45Dublin

18h 52m

2 stops

ONT22:37Ontario

9 Oct

ONT22:10Ontario

27h 25m

1 stop

DUB09:35Dublin

€633

American Airlines

29 Oct

DUB12:55Dublin

17h 57m

1 stop

ONT23:52Ontario

17 Nov

ONT10:30Ontario

12h 45m

1 stop

DUB07:15Dublin

€634

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

DublinOntario

DUB Dublin - ONT Ontario

DUBONT

Dublin

Mon 5/10

15:25-23:42

1 stop16h 17m

Ontario

Mon 12/10

13:52-11:45

1 stop13h 53m

€428

DublinOntario

DUB Dublin - ONT Ontario

DUBONT

Dublin

Fri 2/10

12:40-22:37

1 stop17h 57m

Ontario

Fri 9/10

14:22-09:45

1 stop35h 23m

€618

Fastest return journey

DublinOntario

DUB Dublin - ONT Ontario

DUBONT

Dublin

Thu 3/9

12:40-18:47

1 stop14h 07m

Ontario

Wed 16/9

12:37-09:45

1 stop13h 08m

€623

DublinOntario

DUB Dublin - ONT Ontario

DUBONT

Dublin

Fri 4/9

12:40-22:59

1 stop18h 19m

Ontario

Tue 8/9

12:33-09:45

1 stop13h 12m

€623

DublinOntario

DUB Dublin - ONT Ontario

DUBONT

Dublin

Thu 19/11

13:00-23:52

1 stop18h 52m

Ontario

Mon 23/11

10:30-07:15

1 stop12h 45m

€624

DublinOntario

DUB Dublin - ONT Ontario

DUBONT

Dublin

Mon 30/11

20:40-18:57

2 stops30h 17m

Ontario

Sat 12/12

13:23-15:05

2 stops17h 42m

€626

DublinOntario

DUB Dublin - ONT Ontario

DUBONT

Dublin

Mon 30/11

20:40-18:57

2 stops30h 17m

Ontario

Fri 11/12

14:22-15:15

2 stops16h 53m

€626

DublinOntario

DUB Dublin - ONT Ontario

DUBONT

Dublin

Sat 5/12

11:00-22:57

2 stops19h 57m

Ontario

Wed 9/12

10:30-17:00

2 stops22h 30m

€626

DublinOntario

DUB Dublin - ONT Ontario

DUBONT

Dublin

Wed 2/12

09:00-23:46

2 stops22h 46m

Ontario

Thu 10/12

09:29-17:35

2 stops24h 06m

€626

DublinOntario

DUB Dublin - ONT Ontario

DUBONT

Dublin

Thu 3/12

20:40-23:46

2 stops35h 06m

Ontario

Thu 10/12

14:22-17:35

2 stops19h 13m

€626

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?

Iberia is the most popular carrier 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 79% of people opting to fly with this airline when travelling to Ontario. Keep in mind that there are 6 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	€570
Fastest flight time	15h 55m
Direct flights	None

The best one-way flight to Ontario from Dublin in the past 72 hours is €570. The best return flight deal from Dublin to Ontario found on momondo in the last 72 hours is €428.

The fastest flight from Dublin to Ontario takes 15h 55m

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 15h 55m, 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.