Cheap flights from Ontario to Athens from $339
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 Athens 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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KLM flights from Ontario to Athens
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United Airlines flights from Ontario to Athens
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How to get the cheapest flight ticket from Ontario to Athens
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 typical price of a round-trip flight between Ontario and Athens?
What is the cheapest month to fly to Athens?
The cheapest month to fly to Athens from Ontario is in March. Flight prices, which tend to average around $670, are often lower during this time because this is during the off-season. If you are unable to visit Athens during the month of March, then departing from Ontario during the month November is also very affordable. Most momondo users find prices during this month for around $686.
What is the cheapest day to depart on your flight to Athens?
The cheapest day to depart on your flight to Athens is on a Thursday when prices can be found for as low as $696. This is often the case because there is less demand to fly during this day of the week. If your travel schedule is flexible, try to avoid departing on a Friday because tickets tend to average around $779. These prices are subject to change though, so be sure to set up a Price Alert for flights to Athens.
What is the cheapest time of day to depart on your flight to Athens?
The cheapest time of day to fly to Athens is at noon when flights can be purchased for as low as $717. Flights to Athens are more costly in the morning, with an average ticket price of $1,002. Departure times in the morning fall within the peak daily travel times, which is why tickets can be more expensive.
Can stopping save me money on Ontario to Athens flights?
You could potentially save up to 67% on your flight if you consider stops on a Ontario to Athens flight.
What is the cheapest airline that flies from Ontario to Athens Eleftherios V.?
United Airlines, Air Canada, and KLM are the most popular carriers operating from Ontario to Athens Eleftherios V.
What airlines fly to Athens?
Norse Atlantic Airways, Turkish Airlines and United Airlines are the top three most popular airlines that fly to Athens from Ontario according to our data. Norse Atlantic Airways is the first choice among our users, with 35% of people opting to fly with this airline when traveling to Athens. Keep in mind that there are 19 different airlines that fly to Athens on a routine basis, so you have a few additional options to choose from.
When to book flights from Ontario to Athens
Cheap Ontario to Athens (ONT to ATH) flight deals and tips
Find info about flight duration, direct flights, and airports for your flight from Ontario to Athens
How far is Ontario to Athens Eleftherios V. by plane?
The distance between Ontario and Athens Eleftherios V. is about 6871.5 mi. A reasonable flight in good conditions will take 16h 55m.
When did momondo last update prices for flights from Ontario Airport to Athens Eleftherios V. Airport?
Prices for flights from Ontario Airport to Athens Eleftherios V. Airport are refreshed on a daily basis.
How many operators does momondo search for flights from Ontario Airport to Athens Eleftherios V. Airport?
As of July 2025, there are 2 operators available to choose from for flights from Ontario Airport to Athens Eleftherios V. Airport.
How old do you have to be to fly from Ontario Airport to Athens Eleftherios V. 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 Athens Eleftherios V. Airport.
What documentation or ID do you need to fly to Athens Eleftherios V. Airport?
The required travel and health documents for your Athens Eleftherios V. 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 Athens Eleftherios V. 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 Athens?
Based on momondo bookings for this flight route, the most popular airline on flight routes from Ontario to Athens is United Airlines (65% of total bookings). The next most popular airline is Delta (35%).
Best airlines flying from Ontario to Athens
Compare and see reviews for airlines that fly from Ontario to Athens with momondo
| Airline | Rating | Free Cancellation | Price | ||
|---|---|---|---|---|---|
| PriceFrom $550 | Free Cancellation | Rating 7.4 8,842 reviews | |||
| PriceFrom $571 | Free Cancellation | Rating 8.0 7,954 reviews |
Traveling to a place near Athens?
Book flights to Athens if you plan to visit one of these locationsWhy use momondo?
Why should I use momondo to find a flight deal from Ontario to Athens?
It is quick and easy to find Ontario to Athens flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to Athens that suits you.
Can I find flights from Ontario to Athens with flexible booking policies on momondo?
Flights from Ontario to Athens with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.
How can momondo help me find flights from Ontario to Athens?
Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to Athens from Ontario.
I’m not ready to book a flight from Ontario to Athens right now. Can momondo alert me if prices change?
Price alerts on flights to Athens from Ontario are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.