Cheap flights from Ontario to Dublin from $399
This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Ontario to Dublin departing on 8/26. 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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How to get the cheapest flight ticket from Ontario to Dublin
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 month to fly to Dublin?
In general, November is the cheapest month to fly from Ontario to Dublin. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $507. If you’re not able to fly to Dublin in November, then December is your next best option. Flight prices from Ontario to Dublin during December average around $573.
What is the cheapest day to depart on your flight to Dublin?
The cheapest day to depart from Ontario to Dublin is on a Wednesday. Travelers who choose to depart for Dublin on a Wednesday will often find tickets for as low as $732. Flights from Ontario to Dublin on a Saturday will generally be more expensive and average around $852. Keep in mind that these prices on both days could fluctuate depending on the season and the demand.
What is the cheapest time of day to depart on your flight to Dublin?
In the afternoon is the cheapest time of day to fly from Ontario to Dublin when you can find flight prices for as low as $666. Flying to Dublin in the afternoon is an ideal time because this is during off-peak travel hours. Flights in the morning are often more expensive with an average ticket price of $849.
Can stopping save me money on Ontario to Dublin flights?
You could potentially save up to 19% on your flight if you consider stops on a Ontario to Dublin flight.
What is the cheapest airline that flies from Ontario to Dublin?
United Airlines, Air Canada, and KLM are the most popular carriers operating from Ontario to Dublin
What airlines fly to Dublin?
Aer Lingus, American Airlines and Delta are the top three most popular airlines that fly to Dublin from Ontario according to our data. Aer Lingus is the first choice among our users, with 76% of people opting to fly with this airline when traveling to Dublin. Keep in mind that there are 16 different airlines that fly to Dublin on a routine basis, so you have a few additional options to choose from.
When to book flights from Ontario to Dublin
Cheap Ontario to Dublin (ONT to DUB) flight deals and tips
Find info about flight duration, direct flights, and airports for your flight from Ontario to Dublin
How far is Ontario to Dublin by plane?
The distance between Ontario and Dublin is about 5136.8 mi. Typically, this will take 12h 15m by plane in normal conditions.
When did momondo last update prices for flights from Ontario Airport to Dublin Airport?
Prices for flights from Ontario Airport to Dublin Airport were last updated today.
How many operators does momondo search for flights from Ontario Airport to Dublin Airport?
The number of operators available for flights from Ontario Airport to Dublin Airport is 4 as of June 2025.
How old do you have to be to fly from Ontario Airport to Dublin 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 Ontario Airport to Dublin Airport.
What documentation or ID do you need to fly to Dublin Airport?
The required travel and health documents for your Dublin Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Dublin Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.
What is the most popular airline from Ontario to Dublin?
Based on momondo bookings for flights between Ontario and Dublin, the leading airline is American Airlines, making up 54% of the total bookings. Other popular airlines include Iberia with 20%, Delta with 14%, and KLM with 11%.
Best airlines flying from Ontario to Dublin
Compare and see reviews for airlines that fly from Ontario to Dublin with momondo
| Airline | Rating | Free Cancellation | Price | ||
|---|---|---|---|---|---|
| PriceFrom $527 | Free Cancellation | Rating 8.0 7,963 reviews | |||
| PriceFrom $596 | Free Cancellation | Rating 7.2 10,000 reviews | |||
| PriceFrom $607 | Free Cancellation | Rating 7.8 1,361 reviews | |||
| PriceFrom $718 | Free Cancellation | Rating 7.0 2,778 reviews |
Traveling to a place near Dublin?
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Why should I use momondo to find a flight deal from Ontario to Dublin?
momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Ontario to Dublin. momondo saves you time and could save you money on your trip.
Can I find flights from Ontario to Dublin with flexible booking policies on momondo?
Yes. momondo allows you to filter the results for Ontario to Dublin flights to just show those with flexible booking policies.
How can momondo help me find flights from Ontario to Dublin?
momondo helps you find the best flight between Ontario and Dublin 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 Ontario to Dublin right now. Can momondo alert me if prices change?
Yes. momondo can track prices for Ontario to Dublin 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.