$265 Find Cheap Flights from Ontario to Southeast Europe

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Ontario to Southeast Europe departing on 3/29. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

KAYAK searches hundreds of travel sites at once for deals on flights to Southeast Europe

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Ontario to Southeast Europe, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Ontario to Southeast Europe, as well as popular online travel agencies
Travelers love KAYAK
41.299.237 searches in the past 7 days on KAYAK

Save 24% or moreCompare multiple travel sites with one search.

Track pricesNot ready to book? Create a price alert for when prices drop.

Bundle and saveSave money when you bundle your flight + hotel.

Filter your dealsChoose cabin class, free Wi-Fi and more.

Flight Deals
Booking Insights
Flight Deals

Cheap Flights from Ontario to Southeast Europe

Cheapest round-trip prices found by our users on KAYAK in the last 72 hours
Athens
Athens2 stops$441
Belgrade
Belgrade2 stops$532
Split
Split2 stops$590
Dubrovnik
Dubrovnik2 stops$685
Thera
Thera2 stops$704
Cluj Napoca
Cluj Napoca2 stops$487
Athens
Athens2 stops$441
Belgrade
Belgrade2 stops$532
Split
Split2 stops$590
Dubrovnik
Dubrovnik2 stops$685
Thera
Thera2 stops$704
Cluj Napoca
Cluj Napoca2 stops$487

Book Cheap Ontario to Southeast Europe Plane Tickets

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Ontario to Southeast Europe that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Ontario to Southeast Europe

Tue, Jan 13 - Wed, Jan 21
British Airways Logo
4:45 pm - 10:55 pmONT-OTP
20h 10m2 stops
British Airways Logo
8:05 am - 10:48 pmOTP-ONT
24h 43m2 stops
$439British Airways
Find Deal
Wed, Jan 14 - Fri, Jan 23
British Airways Logo
4:45 pm - 1:05 amONT-ATH
22h 20m2 stops
British Airways Logo
7:45 am - 10:13 pmATH-ONT
24h 28m2 stops
$441British Airways
Find Deal
Sun, Jan 18 - Tue, Feb 3
Multiple Airlines Logo
10:58 am - 2:55 pmONT-OTP
17h 57m2 stops
Multiple Airlines Logo
8:00 am - 10:48 pmOTP-ONT
24h 48m2 stops
$453Multiple Airlines
Find Deal
Thu, Jan 15 - Thu, Jan 22
American Airlines Logo
6:00 am - 4:15 pmONT-ATH
24h 15m2 stops
American Airlines Logo
7:50 pm - 6:45 pmATH-ONT
32h 55m2 stops
$478American Airlines
Find Deal
Thu, Jan 15 - Thu, Jan 22
American Airlines Logo
10:58 am - 4:15 pmONT-ATH
19h 17m2 stops
American Airlines Logo
7:30 am - 10:13 pmATH-ONT
24h 43m3 stops
$483American Airlines
Find Deal
Sun, Jan 11 - Tue, Jan 27
United Airlines Logo
6:00 am - 1:40 pmONT-CLJ
21h 40m2 stops
United Airlines Logo
6:00 am - 10:53 pmCLJ-ONT
26h 53m2 stops
$487United Airlines
Find Deal
Mon, Jan 12 - Tue, Jan 27
United Airlines Logo
6:00 am - 1:40 pmONT-CLJ
21h 40m2 stops
United Airlines Logo
6:00 am - 5:43 pmCLJ-ONT
21h 43m2 stops
$488United Airlines
Find Deal
Thu, Jan 22 - Mon, Jan 26
Delta Logo
7:30 am - 1:35 pmONT-ATH
20h 05m2 stops
Delta Logo
2:35 pm - 1:56 pmATH-ONT
57h 21m2 stops
$508Delta
Find Deal
Mon, Jan 12 - Wed, Jan 28
Multiple Airlines Logo
10:58 am - 3:30 pmONT-OTP
18h 32m2 stops
Multiple Airlines Logo
8:05 am - 10:48 pmOTP-ONT
24h 43m2 stops
$517Multiple Airlines
Find Deal
Thu, Jan 29 - Mon, Feb 2
Delta Logo
6:00 am - 10:50 pmONT-OTP
30h 50m2 stops
Delta Logo
1:55 pm - 1:56 pmOTP-ONT
58h 01m2 stops
$522Delta
Find Deal
Booking Insights

KAYAK's insights & trends for Ontario to Southeast Europe flights

Get data-powered insights and trends into flights from Ontario to Southeast Europe to help you find the cheapest flights, the best time to fly and much more.

Can I save money by flying with a layover from Ontario to Southeast Europe?

The average round-trip price for all non-stop flights, flights with one layover, and flights with two layovers for the route found by users searching on KAYAK in the last 2 weeks.

No, with an average price for the route of $343, prices are generally cheapest when you fly direct.

Good to know

Low seasonMarch
Cheapest flight$265
Best time to beat the crowds with an average 36% drop in price.
Most popular time to fly with an average 59% increase in price.
Flight from Ontario to Athens

FAQs - booking Southeast Europe flights

  • How does KAYAK find such low prices on flights from Ontario to Southeast Europe?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Ontario to Southeast Europe.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Ontario to Southeast Europe?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight from Ontario to Southeast Europe is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Ontario to Southeast Europe?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly from Ontario to Southeast Europe with an airline and back with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Ontario to Southeast Europe?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying from Ontario to Southeast Europe up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

  • What is the cheapest time of day to fly to Southeast Europe?

    The cheapest time of day to fly to Southeast Europe is generally in the evening, when round-trip flights cost $815 on average. Morning departures are around 13% more expensive than evening flights, on average. The most expensive time of day to fly to Southeast Europe is generally in the afternoon, which is peak travel time and where the average cost of a ticket is $1,089.

Reviews of the top airline flying from Ontario to Southeast Europe

 
See real verified KAYAK customer reviews for airlines flying from Ontario to Southeast Europe. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Ontario to Southeast Europe? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.4
United AirlinesOverall score based on 9063 reviews
7.3Comfort
6.6Food
7.7Boarding
8.1Crew
7.1Entertainment
Airline reviews

from SFO-> FRA flight, AVML meal was significantly less compared to regular meal, especially no Desert, no Bread, no sides.

10.0 ExcellentAnonymous, Nov 2025SFO - FRA
Read more United Airlines reviews

from SFO-> FRA flight, AVML meal was significantly less compared to regular meal, especially no Desert, no Bread, no sides.

This was an older airplane. The cabin was constantly warm to hot throughout the 10 hour flight and there were no vents to personalize air flow. Also since it was an older plane, the material and comfort of the chairs were very uncomfortable. I left my flight with major soreness on my tailbone.

Older aircraft, no meal, only food was for purchase. Not impressed United.

Not pleasant trip cross country when the entertainment and WiFi system not working. No entertainment for entirety of route. Staff was rather nonchalant in that they dismissed the problem due to age of plane. It would have been nice to know this up front so I could have come prepared to read or download movies before boarding Coincidentally or not, there was a similar issue with the entertainment system on my previous flight I took on my fist leg of the trip. There are no seat TVs, so you must rely on the app when it works. United can do better. Also, what use it it to pay for boarding group 2 when half of the passengers are in the same line as you?

My experience on this United Airlines flight was highly uncomfortable, primarily due to two issues: Cabin Temperature: The temperature on the Boeing 737 MAX 8 was unacceptably high, feeling consistently around 80 degrees throughout the flight. This made sleeping impossible and significantly detracted from the experience. Seating Arrangement: Being stuck in a middle seat for a six-and-a-half-hour overnight flight compounded the discomfort. Moving forward, I will always purchase a seat assignment to avoid this situation.

Premium Plus is a really good idea for longer flights

Same as last comment. Food sucks. Quality. Not surprising most people have no clue about nourishment Clearly

The flight attendants were great, I joked with one I can’t remember her name, a blond, really sweet. I thought it was run well very professional. This was great i survived Spirit, I know for which I speak.

We were in business class. the angled seats in that class do not have a real window view & the placement of the controls are bad. But we knew that. But the food options were mediocre. The taste was fine, but the size was for a child. It’s just really feels like United is skimping on everything. Even when we were in the Polaris lounge they did not have diet sodas. They said they were out no Coke zero no Diet Coke, etc. I do not think the portion of nuts they serve on the plane could get any smaller. Really a minimal service and offer for what you’re paying for in business.

I was in first class. The outlets at my seat did not work. The plane was shabby and run down. I had prepurchsed a day subscription for internet that was not redeemable. I had to repurchase the internet for my flight and then it didn’t work anyway. Quite disappointed in what was supposed to be the launch of a great vacation.

Everything you need to know for your flight to Southeast Europe

Information on your arrival and departure airports