Cheap Flights from Ontario, CA to Dublin, Ireland from $486 - ONT to DUB Tickets & Airfare Deals at Cheapflights.com

How to find the cheapest flight from
Ontario (ONT) to Dublin (DUB)

What is the cheapest day to fly round-trip from Ontario to Dublin?

Departing on a Monday is a good option for securing a great price. You can expect to save up to 98% when planning your travel around this day of the week.

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

Find a great deal and save up to 32% by booking at least 47 days prior to your desired departure date, rather than waiting until the week of travel. According to our data, there are a number of flights available from Ontario to Dublin within the next two weeks, with the cheapest ticket starting at $947.

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

Flights from Ontario to Dublin lean towards being more expensive in August. Prices are generally better when you fly from Ontario to Dublin in November, with the cheapest ticket starting at $575.

When is the cheapest time to fly from Ontario to Dublin (ONT - DUB)?

When flying from Ontario to Dublin, the time of day you fly usually plays a role in the price. Save by searching for a flight in the morning, which can drop the price by up to 13% versus a flight at noon.

Related info for your journey

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

Flight FAQs

From Ontario to Dublin

Are flight prices decreasing from Ontario to Dublin due to COVID-19 (coronavirus)?

At this time, Cheapflights has noticed price decreases for many domestic flights due to COVID-19. Travel is not necessarily recommended at this time, and flights may be prone to cancellation: please check with local authorities in both Ontario and Dublin for travel alerts, and be sure to review the airline's cancellation policy and travel advisories before booking. For more information, please view our post on what to know about COVID-19 (coronavirus) and travel.

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

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

Can I find flights from Ontario to Dublin for under $500 on Cheapflights?

Yes, there are multiple flights from Ontario to Dublin for under $500. The cheapest flight booked recently is on United Airlines for just $499, but on average you can expect to pay $545.

Are there nonstop flights from Ontario to Dublin for under $500 on Cheapflights?

There are no nonstop flights from Ontario to Dublin, but Cheapflights can provide you with all the information you need to find the fastest route with the fewest stops.

Are there last-minute flights available from Ontario to Dublin for under $900?

There are currently 5+ open flights from Ontario to Dublin within the next 7 days for less than $900.

How popular is this flight route?

This flight path from Ontario to Dublin was viewed by 127 users in the past month. Keep an eye out for changes in search interest prior to high and low season.

Does it rain more in Ontario or Dublin?

The rainfall in Ontario is generally more than the rainfall in Dublin. This will continue over the next 8 days.

Is Ontario weather warmer or cooler than Dublin?

With an average temperature of 95 °F, peak weather can be found in July. As a traveler, expect to see changes in flight prices during that period. The temperatures in Dublin are colder than in Ontario.

How long is the flight from Ontario to Dublin?

Airlines like United Airlines, American Airlines, and KLM fly from Ontario to Dublin in about 12h 39m. The time it takes to get you to your destination can typically vary by up to 3h 08m. This flight may include one or multiple stops.

What are the cheapest airlines flying from Ontario to Dublin round-trip?

Currently priced at $499, United Airlines will fly you from Ontario to Dublin and back. In addition to United Airlines, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from Delta and British Airways - these airlines can fly you to your destination from $509 and $517, respectively. These flights start at 46% lower than the current average price 3 months from now.

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Alternative routes for Ontario to Dublin

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Destination information for Dublin

Things to know before you go. Useful info for your trip from Ontario to Dublin

$1 = €0.83

48.2 °F

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Airports servicing Ontario

Ontario (ONT)

Airports servicing Dublin

Dublin (DUB)

Airline	Cheapest	Average	Flexibility	On-time
United Airlines	$478	$793	No cancel fee	69%
British Airways	$502	$799	No cancel fee	70%
American Airlines	$540	$828	No cancel fee	71%

Cheap flights from Ontario (ONT) to Dublin (DUB)

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How to find the cheapest flight from Ontario (ONT) to Dublin (DUB)

What is the cheapest day to fly round-trip from Ontario to Dublin?

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

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

When is the cheapest time to fly from Ontario to Dublin (ONT - DUB)?

Cheap flights from Ontario to Dublin in January, February 2021

Ontario to Dublin 2021 flight deals

Last minute flights from Ontario to Dublin