Cheap flights from Ontario (ONT) to Ireland

ONT — DUB
Aug 16 — Aug 231

How far in advance should I book a flight from Ontario to Ireland?

To save on the cost of your flight from Ontario to Ireland, book at least 61 days before your planned departure. Booking around this time can save you about 37% on the cost of this flight compared to booking a flight leaving this week. We have found prices from $754 if you need a flight within two weeks. For flights within the next 72 hours, you can find tickets from as low as $893.

What is the cheapest month to fly from Ontario to Ireland?

Flights from Ontario to Ireland lean towards being more expensive in July. Prices are generally better when you fly from Ontario to Ireland in February, with the cheapest ticket starting at $322.

When is the cheapest time to fly from Ontario to Ireland (ONT - IE)?

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Ontario to Ireland as you normally would.

Cheap flights from Ontario to Ireland in August, September 2022

The best prices found for ONT to Ireland flights for August, September
Sep 12 - Sep 22
ONT

Ontario

DUB

Dublin

2 stops

26h 40m
DUB

Dublin

ONT

Ontario

1 stop

15h 34m
$558

Delta

Pick Dates

Deal found 8/9/22

Sep 20 - Sep 28
ONT

Ontario

DUB

Dublin

2 stops

19h 00m
DUB

Dublin

ONT

Ontario

2 stops

19h 14m
$572

Delta

Pick Dates

Deal found 8/10/22

Sep 28 - Oct 5
ONT

Ontario

DUB

Dublin

1 stop

18h 05m
DUB

Dublin

ONT

Ontario

1 stop

17h 53m
$577

American Airlines

Pick Dates

Deal found 8/11/22

Ontario to Ireland 2022 flight deals

Cheap flights to Ireland from Ontario found for this year
Oct 10 - Oct 19
ONT

Ontario

DUB

Dublin

1 stop

18h 05m
DUB

Dublin

ONT

Ontario

1 stop

15h 29m
$552

American Airlines

Pick Dates

Deal found 8/10/22

Oct 17 - Oct 26
ONT

Ontario

DUB

Dublin

1 stop

13h 00m
DUB

Dublin

ONT

Ontario

1 stop

19h 03m
$553

KLM

Pick Dates

Deal found 8/8/22

Oct 10 - Oct 19
ONT

Ontario

DUB

Dublin

1 stop

22h 21m
DUB

Dublin

ONT

Ontario

2 stops

17h 14m
$555

American Airlines

Pick Dates

Deal found 8/10/22

Cheap American Airlines flights from Ontario to Ireland

Sep 25 - Oct 5
ONT

Ontario

DUB

Dublin

1 stop

22h 59m
DUB

Dublin

ONT

Ontario

1 stop

17h 53m
$550

American Airlines

Pick Dates

Deal found 8/8/22

Oct 10 - Oct 19
ONT

Ontario

DUB

Dublin

1 stop

18h 05m
DUB

Dublin

ONT

Ontario

1 stop

15h 29m
$552

American Airlines

Pick Dates

Deal found 8/10/22

Oct 10 - Oct 19
ONT

Ontario

DUB

Dublin

1 stop

22h 21m
DUB

Dublin

ONT

Ontario

2 stops

17h 14m
$555

American Airlines

Pick Dates

Deal found 8/10/22

Cheap United Airlines flights from Ontario to Ireland

Sep 5 - Sep 13
ONT

Ontario

DUB

Dublin

2 stops

20h 56m
DUB

Dublin

ONT

Ontario

2 stops

31h 50m
$599

United Airlines

Pick Dates

Deal found 8/10/22

Sep 5 - Sep 14
ONT

Ontario

DUB

Dublin

2 stops

20h 00m
DUB

Dublin

ONT

Ontario

2 stops

19h 04m
$608

United Airlines

Pick Dates

Deal found 8/10/22

Oct 21 - Oct 30
ONT

Ontario

DUB

Dublin

2 stops

20h 00m
DUB

Dublin

ONT

Ontario

2 stops

39h 57m
$615

United Airlines

Pick Dates

Deal found 8/9/22

Last minute flights from Ontario to Ireland

Late deals on return flights to Ireland from Ontario, departing today and this week
Aug 16 - Sep 2
ONT

Ontario

DUB

Dublin

1 stop

22h 59m
DUB

Dublin

ONT

Ontario

1 stop

17h 47m
$600

Multiple Airlines

Pick Dates

Deal found 8/11/22

Aug 16 - Aug 23
ONT

Ontario

DUB

Dublin

1 stop

18h 05m
DUB

Dublin

ONT

Ontario

1 stop

17h 47m
$602

American Airlines

Pick Dates

Deal found 8/9/22

Aug 18 - Aug 31
ONT

Ontario

DUB

Dublin

1 stop

13h 35m
DUB

Dublin

ONT

Ontario

1 stop

19h 13m
$603

Delta

Pick Dates

Deal found 8/11/22

One-way flights to Ireland from Ontario

The cheapest one-way flights from Ontario to Ireland
Oct 25
ONT

Ontario

DUB

Dublin

1 stop

13h 00m
$376

KLM

Pick Dates

Deal found 8/9/22

Oct 22
ONT

Ontario

DUB

Dublin

2 stops

28h 30m
$381

United Airlines

Pick Dates

Deal found 8/11/22

Oct 29
ONT

Ontario

DUB

Dublin

2 stops

29h 25m
$395

United Airlines

Pick Dates

Deal found 8/10/22

Related info for your journey

Useful info, stats and facts about Ontario to Ireland flights.

What airport do you fly from for flights from Ontario to Ireland?

Located just 3.1 mi from the city center, Ontario (ONT) is the airport most travelers will use when flying to Ireland from Ontario.

Which airlines flying from Ontario to Ireland have flexible cancellations due to COVID-19?

Some of the carriers operating flights from Ontario to Ireland that may be offering flexible cancellation policies are American Airlines, British Airways, and Delta. Our site will let you filter for all airlines offering greater flexibility due to COVID-19.

Can I find flights from Ontario to Ireland for under $600 on Cheapflights?

Yes, there are multiple flights from Ontario to Ireland for under $600. The cheapest flight booked recently is on American Airlines for just $550, but on average you can expect to pay $575.

Are there last-minute flights available from Ontario to Ireland for under $600?

There are currently 20+ open flights from Ontario to Ireland within the next 7 days for less than $600.

What are the cheapest airlines to fly from Ontario to Ireland one-way?

The cheapest airline one-way is KLM, with whom users have recently found tickets for as low as $376. However, be on the lookout for offers from United Airlines and Air Canada, as they are both options that can get you from Ontario to Ireland for a low price.

What are the most popular routes from Ontario to Ireland?

When deciding which route to take from Ontario to Ireland consider Ontario - Dublin, Ontario - Shannon or Ontario - Cork as they are the most popular.

What are the most popular airlines that fly from Ontario to Ireland?

The most popular airlines flying from Ontario to Ireland are American Airlines, Air Canada and British Airways. Something to consider prior to booking your flight.

What are the cheapest flights from Ontario to Ireland?

Looking for the cheapest flight from Ontario to Ireland? While on average our users pay $1,672, our data indicates the cheapest price to be $536. The most popular route (Ontario - Dublin), is priced around $553.

Destination points for flights from Ontario to Ireland

Select to see more specific information for flights from Ontario to all places in Ireland

Top 5 airlines flying from Ontario to Ireland

The chart below displays the airlines Cheapflights users traveling from Ontario to Ireland choose most often. Cheapest and average prices are based on aggregated data from the past 12 months.
AirlineCheapestAverageFlexibilityOn-timeCOVID-19 safety
United AirlinesCheapest$430Average$516FlexibilityNo cancel feeOn-time69%COVID-19 safety
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DeltaCheapest$516Average$677FlexibilityNo cancel feeOn-timeN/ACOVID-19 safety
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KLMCheapest$523Average$674FlexibilityNo cancel feeOn-time75%COVID-19 safety
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British AirwaysCheapest$523Average$824FlexibilityNo cancel feeOn-time70%COVID-19 safety
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American AirlinesCheapest$549Average$772FlexibilityNo cancel feeOn-time71%COVID-19 safety
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