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 necessary travel and health documents for your Ontario Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

$433 Cheap Flights from Dublin to Ontario in 2026/27

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One-way

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Cheap round-trip flights

Enter your travel dates to find the best prices.

12:55 pm - 9:32 pmDUB Dublin-ONT Ontario

16h 37m1 stop Dallas/Fort Worth

11:59 pm - 7:10 amONT Ontario-DUB Dublin

23h 11m1 stop Dallas/Fort Worth

$622American Airlines

Thu, Nov 5 - Sat, Nov 21

1:25 pm - 11:03 amDUB Dublin-ONT Ontario

29h 38m2 stops Amsterdam Schiphol Atlanta Hartsfield-Jackson

6:00 am - 2:30 pmONT Ontario-DUB Dublin

24h 30m2 stops Salt Lake City Paris Charles de Gaulle

$701Delta

Tue, Nov 24 - Tue, Dec 1

9:00 am - 8:25 pmDUB Dublin-ONT Ontario

19h 25m2 stops Toronto Pearson Intl San Francisco

7:00 am - 8:10 amONT Ontario-DUB Dublin

17h 10m1 stop Chicago O'Hare Intl

$707United Airlines

Thu, Jan 21 - Mon, Jan 25

9:00 am - 9:00 pmDUB Dublin-ONT Ontario

20h 00m2 stops Toronto Pearson Intl Denver Intl

6:37 pm - 7:30 amONT Ontario-DUB Dublin

28h 53m2 stops San Francisco Newark

$707United Airlines

Thu, Jan 21 - Mon, Jan 25

9:00 am - 8:25 pmDUB Dublin-ONT Ontario

19h 25m2 stops Toronto Pearson Intl San Francisco

7:00 am - 8:10 amONT Ontario-DUB Dublin

17h 10m1 stop Chicago O'Hare Intl

$708United Airlines

Thu, Jan 21 - Mon, Jan 25

9:00 am - 9:00 pmDUB Dublin-ONT Ontario

20h 00m2 stops Toronto Pearson Intl Denver Intl

6:00 am - 7:30 amONT Ontario-DUB Dublin

17h 30m2 stops Houston George Bush Intcntl Newark

$708United Airlines

Thu, Jan 21 - Mon, Jan 25

9:00 am - 8:25 pmDUB Dublin-ONT Ontario

19h 25m2 stops Toronto Pearson Intl San Francisco

7:00 am - 8:10 amONT Ontario-DUB Dublin

17h 10m1 stop Chicago O'Hare Intl

$709United Airlines

Thu, Jan 21 - Mon, Jan 25

11:30 am - 9:32 pmDUB Dublin-ONT Ontario

18h 02m2 stops Philadelphia Dallas/Fort Worth

12:45 pm - 7:10 amONT Ontario-DUB Dublin

34h 25m1 stop Dallas/Fort Worth

$711American Airlines

Thu, Nov 5 - Sat, Nov 21

12:55 pm - 10:36 pmDUB Dublin-ONT Ontario

17h 41m1 stop Dallas/Fort Worth

6:00 am - 8:40 amONT Ontario-DUB Dublin

18h 40m2 stops Dallas/Fort Worth Philadelphia

$711American Airlines

Tue, Nov 24 - Tue, Dec 1

12:55 pm - 11:52 amDUB Dublin-ONT Ontario

30h 57m1 stop Dallas/Fort Worth

11:59 pm - 7:10 amONT Ontario-DUB Dublin

23h 11m1 stop Dallas/Fort Worth

$733American Airlines

Thu, Nov 5 - Sat, Nov 21

Cheap last minute flights

Enter your travel dates to find the best prices.

9:50 am - 10:51 pmDUB Dublin-ONT Ontario

21h 01m2 stops Vancouver Intl San Francisco

5:00 am - 6:10 amONT Ontario-DUB Dublin

18h 10m2 stops Denver Intl Toronto Pearson Intl

$814Air Canada

Fri, Oct 16 - Sun, Oct 25

9:50 am - 10:51 pmDUB Dublin-ONT Ontario

21h 01m2 stops Vancouver Intl San Francisco

5:00 am - 7:10 amONT Ontario-DUB Dublin

18h 10m2 stops Denver Intl Toronto Pearson Intl

$814Air Canada

Fri, Oct 16 - Sat, Oct 24

12:40 pm - 9:11 pmDUB Dublin-ONT Ontario

16h 31m1 stop Dallas/Fort Worth

10:25 am - 7:10 amONT Ontario-DUB Dublin

13h 45m1 stop Dallas/Fort Worth

$816Iberia

Thu, Oct 15 - Sun, Oct 25

11:35 am - 10:49 pmDUB Dublin-ONT Ontario

19h 14m1 stop Chicago O'Hare Intl

7:00 am - 8:10 amONT Ontario-DUB Dublin

17h 10m1 stop Chicago O'Hare Intl

$817Lufthansa

Mon, Oct 19 - Sat, Nov 7

11:45 am - 9:11 pmDUB Dublin-ONT Ontario

17h 26m2 stops Charlotte Douglas Dallas/Fort Worth

10:25 am - 7:10 amONT Ontario-DUB Dublin

13h 45m1 stop Dallas/Fort Worth

$840American Airlines

Thu, Oct 15 - Sun, Oct 25

12:40 pm - 6:44 pmDUB Dublin-ONT Ontario

14h 04m1 stop Dallas/Fort Worth

9:41 am - 7:10 amONT Ontario-DUB Dublin

14h 29m2 stops Phoenix Sky Harbor Intl Dallas/Fort Worth

$840American Airlines

Thu, Oct 15 - Mon, Oct 26

12:40 pm - 6:44 pmDUB Dublin-ONT Ontario

14h 04m1 stop Dallas/Fort Worth

10:25 am - 7:10 amONT Ontario-DUB Dublin

13h 45m1 stop Dallas/Fort Worth

$840American Airlines

Thu, Oct 15 - Mon, Oct 26

12:40 pm - 6:44 pmDUB Dublin-ONT Ontario

14h 04m1 stop Dallas/Fort Worth

9:41 am - 8:10 amONT Ontario-DUB Dublin

14h 29m2 stops Phoenix Sky Harbor Intl Dallas/Fort Worth

$840American Airlines

Thu, Oct 15 - Sat, Oct 24

12:40 pm - 6:44 pmDUB Dublin-ONT Ontario

14h 04m1 stop Dallas/Fort Worth

10:25 am - 8:10 amONT Ontario-DUB Dublin

13h 45m1 stop Dallas/Fort Worth

$840American Airlines

Thu, Oct 15 - Sat, Oct 24

12:40 pm - 9:11 pmDUB Dublin-ONT Ontario

16h 31m1 stop Dallas/Fort Worth

10:25 am - 7:10 amONT Ontario-DUB Dublin

13h 45m1 stop Dallas/Fort Worth

$840American Airlines

Thu, Oct 15 - Sun, Oct 25

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American Airlines flights from Dublin to Ontario

Our best American Airlines deals on Dublin to Ontario flight tickets

American Airlines

Nov 5

DUB12:55 pmDublin

16h 37m

1 stop

ONT9:32 pmOntario

Nov 21

ONT11:59 pmOntario

23h 11m

1 stop

DUB7:10 amDublin

$622

American Airlines

Nov 2

DUB12:55 pmDublin

28h 45m

1 stop

ONT9:40 amOntario

Nov 8

ONT10:30 amOntario

12h 40m

1 stop

DUB7:10 amDublin

$733

American Airlines

Nov 6

DUB12:55 pmDublin

16h 37m

1 stop

ONT9:32 pmOntario

Nov 22

ONT10:37 amOntario

12h 33m

1 stop

DUB7:10 amDublin

$735

Delta flights from Dublin to Ontario

Our best Delta deals on Dublin to Ontario flight tickets

Delta

Nov 24

DUB1:25 pmDublin

29h 38m

2 stops

ONT11:03 amOntario

Dec 1

ONT6:00 amOntario

24h 30m

2 stops

DUB2:30 pmDublin

$701

Delta

Oct 29

DUB1:25 pmDublin

28h 41m

2 stops

ONT11:06 amOntario

Nov 2

ONT6:00 amOntario

24h 30m

2 stops

DUB2:30 pmDublin

$729

Delta

Oct 14

DUB11:00 amDublin

17h 25m

1 stop

ONT8:25 pmOntario

Oct 25

ONT9:45 amOntario

15h 10m

2 stops

DUB7:55 amDublin

$994

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

DublinOntario

DUB Dublin - ONT Ontario

DUBONT

Dublin

Thu 11/5

12:55 pm-9:32 pm

1 stop16h 37m

Ontario

Sat 11/21

11:59 pm-7:10 am

1 stop23h 11m

$622

DublinOntario

DUB Dublin - ONT Ontario

DUBONT

Dublin

Tue 11/24

1:25 pm-11:03 am

2 stops29h 38m

Ontario

Tue 12/1

6:00 am-2:30 pm

2 stops24h 30m

$701

DublinOntario

DUB Dublin - ONT Ontario

DUBONT

Dublin

Thu 1/21

9:00 am-8:25 pm

2 stops19h 25m

Ontario

Mon 1/25

7:00 am-8:10 am

1 stop17h 10m

$707

DublinOntario

DUB Dublin - ONT Ontario

DUBONT

Dublin

Thu 1/21

9:00 am-9:00 pm

2 stops20h 00m

Ontario

Mon 1/25

6:37 pm-7:30 am

2 stops28h 53m

$707

DublinOntario

DUB Dublin - ONT Ontario

DUBONT

Dublin

Thu 1/21

9:00 am-8:25 pm

2 stops19h 25m

Ontario

Mon 1/25

7:00 am-8:10 am

1 stop17h 10m

$708

DublinOntario

DUB Dublin - ONT Ontario

DUBONT

Dublin

Thu 1/21

9:00 am-9:00 pm

2 stops20h 00m

Ontario

Mon 1/25

6:00 am-7:30 am

2 stops17h 30m

$708

DublinOntario

DUB Dublin - ONT Ontario

DUBONT

Dublin

Thu 1/21

9:00 am-8:25 pm

2 stops19h 25m

Ontario

Mon 1/25

7:00 am-8:10 am

1 stop17h 10m

$709

DublinOntario

DUB Dublin - ONT Ontario

DUBONT

Dublin

Thu 11/5

11:30 am-9:32 pm

2 stops18h 02m

Ontario

Sat 11/21

12:45 pm-7:10 am

1 stop34h 25m

$711

Quickest round-trip

DublinOntario

DUB Dublin - ONT Ontario

DUBONT

Dublin

Tue 11/24

12:55 pm-10:36 pm

1 stop17h 41m

Ontario

Tue 12/1

6:00 am-8:40 am

2 stops18h 40m

$711

DublinOntario

DUB Dublin - ONT Ontario

DUBONT

Dublin

Thu 11/5

12:55 pm-11:52 am

1 stop30h 57m

Ontario

Sat 11/21

11:59 pm-7:10 am

1 stop23h 11m

$733

Flights are sorted by cheapest round-trip 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, British Airways, and KLM are the most popular carriers operating from Dublin to Ontario

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 round-trip 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	$433
Fastest flight time	15h 56m
Direct flights	None

The best one-way flight to Ontario from Dublin in the past 72 hours is $433. The best round-trip flight deal from Dublin to Ontario found on momondo in the last 72 hours is $622.

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.

Search flight deals

Frequently asked questions about flying from Dublin to Ontario

How far is Dublin to Ontario by plane?
Ontario is 5136.8 mi away from Dublin. By plane, this route typically takes 15h 56m.
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 necessary travel and health documents for your Ontario Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking 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?

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from Dublin to Ontario for you.

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

Yes. momondo allows you to filter the results for Dublin to Ontario flights to just show those with flexible booking policies.

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

momondo helps you find the best flight between Dublin and Ontario by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

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.

An easier way to manage your Ontario trip

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Cheap flights from Dublin to Los Angeles from $433

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Dublin to Los Angeles departing on 1/31. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

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American Airlines flights from Dublin to Ontario

Our best American Airlines deals on Dublin to Ontario flight tickets

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Our best Delta deals on Dublin to Ontario flight tickets

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How to get the cheapest flight ticket from Dublin to Ontario

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

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

Best Price Found

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Direct flights

Frequently asked questions about flying from Dublin to Ontario

Why use momondo?

An easier way to manage your Ontario trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

Find better results for your trip to the United States

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List of cabin classes available on flights landing in Los Angeles. Availability may vary depending on flight origin and airline.

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