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$397 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 7/15. 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
0 bags
Fri 7/12
Fri 7/19

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Best Southeast Europe Flight Deals

Cheapest round-trip prices found by our users on KAYAK in the last 72 hours

Athens
Athens2 stops$568
Belgrade
Belgrade2 stops$706
Zagreb
Zagreb2 stops$632
Thera
Thera2 stops$1,331
Dubrovnik
Dubrovnik2 stops$712
Split
Split2 stops$695
Cluj Napoca
Cluj Napoca2 stops$1,033

Good to know

Low season

March

High season

April

Cheapest flight

$397
Best time to beat the crowds with an average 30% drop in price.
Most popular time to fly and prices are also 16% lower on average.
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 to Southeast Europe from Ontario 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 to Southeast Europe with an airline and back to Ontario 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 to Southeast Europe from Ontario up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

See more FAQs

Top 5 airlines serving from Ontario to Southeast Europe

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.
8.0
DeltaOverall score based on 10000 reviews
7.4Food
8.2Boarding
8.6Crew
7.9Comfort
8.0Entertainment
Airline reviews

There was plenty of overhead room but half of the passengers were told they had to check their carryon bags. My partner and I checked in as early as possible and our seats were split across the aisle.

4.0 OkayBrooke, Jun 2024SFO - MSP
Read more about Delta reviews

There was plenty of overhead room but half of the passengers were told they had to check their carryon bags. My partner and I checked in as early as possible and our seats were split across the aisle.

Flew first class so everything was great. But maybe because the flights were red eye, no meals were served, just chips. I flew Alaska Air 1st class at 9PM (2 hour flight) and they served beef short rib sliders!

There was a loud squeaky sound the whole time we were flying.

I didn’t not like that I could not select my seat and ended up with the worse seat.

The landing was bad and the hostess came two times and i was sleeping but when she served the person that nexts to me I woke up and she didn’t even asked me if I need any drink or snacks two times!!!!

Plane was late because of a mechanical malfunction and the food listed as available was not. Flight attendants seem over worked and under paid. They just done seem happy. And that can be seen in their faces.

Waited 3 hours on a plane to de-ice due to manpower issues. Waited another hour and a half once we landed because of a gate issue. Missed my connections. Created. A total of 13 hours of delay.

Great, on time departure, friendly and accommodating crew, great leg room, Smith flight

Plane was turned around due to fog half way into the flight, Delta did not properly direct passengers to stay on same flight and instead failed to properly rebook on Alaska

Honestly, I didn’t expect that I will experience this long time wait during the check in. There was only one person who was taking care of the passengers for the economy class and it took us to wait about one hour to do our check i. As a result we barely get to the airplane as the gate was at the end of the airport. That is totally not professional where one crue is working at the registration desk with economy and 3-4 crues are helping for the business class.

The flight was delayed for 2 hrs. Because they didn’t have a crew to fly. And it is not a first time for klm to do that. Last time they cancelled my filght and rebooked me 3 days later. Not reliable airline

Booked connecting flights with KlM. My serving flight was the furthest part of the airport. On arrival in Zurich. My two cases arrived but only one carry on belong to my son. His three suitcase didn't arrive. After enquiring we discovered they were still in Amsterdam. We landed at 11.12. We eventually left the airport just after one.

The food was ok. The crew seemed like they were cranky. I had one guy get mad at me for passing in between the storage area to get to the other toilet. I can understand if it's not allowed but reprimanding me like I'm a student saying "This is the last time!" was not appropriate. During my meal time, there was a French family around me. No problems there but when we usually have meals, they are supposed to put their chair in the upright position. These people did not do it and the steward did not tell them to raise their seat in the upright position. However, I was told to do so! So, me and another person next to me had to eat with the monitor almost touching our faces. Furthermore, a lady in front of me was putting her feet up and preventing another elder passenger from putting her seat back. To make it worse, she was continuously hitting her back into her seat, shaking my monitor while I was watching a movie. A crew member did speak to her about it but then she accused me of pushing her seat forward! The crew member gave me a death stare and told me to stop pushing the seat forward. I did not even touch her seat at all, if I did, she would know it. Her boyfriend also stood up and tried to push her seat even further past the maximum decline to no avail. None of these people were reprimanded but the steward, some bald guy, was extremely friendly with them and did not even try to instruct them to do anything until it was time to land. I resisted the urge to really argue with them because I would have obviously been seen as the aggressor (I have no idea why). I hardly said anything on this flight except "more wine please" and "sorry" if I bumped into someone accidentally. Overall, it was an annoying flight and I had to resist the urge to yell at the steward and the people he was overly friendly with. The happiest moment of this flight was leaving it.

Overall a good experience. We were disappointed when we had to check our carry on due to the plane being full. KLM hadn’t notified us and we had valuable items in the carry on but they still made us check it. Some of the food was great and some was mediocre. Crew is really kind and funny.

One of the vstewardeses wanted to bump me of the plane for absolutely nothing. There is CCTV in the plane ans everything can be verified. Very disappointing , you all will see, o other 5 years and the passangers who does not smile to flight attendent will be bumped off...

Mostly fine. Minor delays departing and arriving. Quite a cramped plane, not so much as regards legroom but very narrow seats. Quiet nice food. Non-working USB charger. Flight attendants were helpful but not particularly proactive — one had to work to get their attention (but all was fine once they notice you), very Dutch style:)

The flight itself it was great nice food the crew were very nice and helpful, Checking in from Birmingham wasn't great long queues for bag dropped, And I had my hand luggage case taken away from me even though I requested to have it with me as I had breakables items. I was told I can not because of the length of the flight with no explanation at all no options was given for me to take my fragile items out of my case it was taken away with hold buggage I find the staff member who was checking me in very unpleasant !! Can we please be advise if the rules have changed about the the carry on hand luggage it will be easier to be advise on booking your tickect if we not allowed to take the hand luggage with me. Overall I had a good flight .

The plane was clean and the staff was friendly. Food and drinks as expected on international flights. The entertainment system was old style, with a pullout controller, and selections not as extensive as on other flights.

One of their staff was so rude with discriminative. Such a reputed airline shouldn't hire such kind of arrogant attendants.

The boarding was one of the worst I’ve ever experienced. The fault lays on Ohare Airport and not so much the airline. The waiting area by the gate was the size to accommodate a regional flight for 20-30 people and right next to a busy walkway. When you cramped nearly 300 passengers into that space is was unbearable.

The entertainment wasn’t playing in the app or online.

Why does it have to be painful to fly long distances?

Horrible, the flights kept delaying, so it is obvious that we won't be able to make it to the next connection. No easier/real agent on site to help you figure this out. UA agent on other counters refuse to assist you and direct us to use the QR code/call customer service. So inefficient and poor. While technology seems convenient, but it's not the best interest/experience for customers need help while there is active issue need assistance.

Food is very bad and entertint not too many options ... flight attendet service is not good

Everything was pretty good except for food. They need to improve on it compared to other airlines.

Flight was delayed due to the late arrival of the catering truck, which is quite unacceptable. There was a beverage service, but no pretzel, or cookie, or nuts were served in coach.

I had a great flight. Everything went smoothly and the flight arrived early.

Aisle chair was good and liked the foot bar preventing you from putting your foot in the isle, The breakfast on this international flight to Zurich was horrible (Europeans, specially, used to good food) may make this a dealbreaker for booking with United Airlines again. I agreed with my Spanish fellow passenger.

On time take off…US cabins look tired and need of refresh!

Backpack should NOT allowed put in the flight bin , only put it under the seat. I can't find space put my carry on luggage!!! and I pay for it ! that was very bad experience

The flight was delayed several times without explanation. The seats were terribly uncomfortable and wifi isn’t included. All these make for a less than ideal flight.

Internet service was erratic. Crew service was poor and slow. My luggage on this non-stop flight was lost and not recovered

Flight was 1/2 hour delayed leaving Phoenix. Otherwise it was an average flight. Flight crew on this trip was very nice.

Horrible - they lied to me about baggage & boarding, even though I specifically spoke to their agents the day before my flight about my issue. When I showed up they did not let me board and stranded me at my airport until I bought a new flight with money I did not have to spend.

Not sure why JAL partnered with American Airlines because their service is no where near similar. Flight attendants were not friendly and didn’t smile. Food was horrible…

The experience was great and much better than the flight going out. of course I was in first class but the service was excellent

Comfort of seats, ease of boarding. Food selection could be better

Food options were limited which is absolutely embarrassing for a Flight of this size The staff did not come around as much and I am not accustomed to such poor service from American Airlines Drinks I believe were limited to soda and water

Crew were attentive and friendly. Flight was smooth and early! I enjoyed the less crowded plane. Thank you!

We are gluten free, there were not any available complimentary gluten free options.

Economy class has no legroom so if you have the money worth to upgrade! Food was absolutely horrible! The crew was super nice!!!!!

The flight was provided by Aer Lingus and our seats were in a poor condition (15A & 15C). They looked like they needed repairing/replacing and were uncomfortable for such a long flight. Also the arm rests on Aer Lingus planes do not lift more than around 45 degrees, instead of the usual 90 degrees upright, meaning you cannot maximum the space between you & your travel companion so as to be more comfortable for such a long flight.

Flights were actually with Aer Lingus outward and American Airlines & Aer Lingus on the return journey. Outward flight with Aer Lingus was good but the return flight with them was not so good as our seats were in a poor condition (15A & 15C) and looked like they needed replacing! The American Airlines flight from Miami to JFK New York was good and the seats were very comfortable and spacious (32D & 32E)

Awful. Delay, lost vacation time and travel time now more than 24h

Awful. Flight delayed and we missed our long flight to Rome. It has been a nightmare and we have still not arrived. It was NOT a weather delay, just poor planning by AA

Boarding was as fast and efficient as possible. The flight crew were amazing and extremely friendly. We enjoyed our flight.

Very bed boarding, there was overbooked and make a lot of problems and noises

There was a problem in the luggage because there were not porters

On my way from Chicago to London, I was seated next to a quite heavy passenger. I could barely move. BA should have ensured that overweight customers are placed in comfortable seats and not to penalize also other passengers because BA is not willing to accommodate these passengers and their needs. No respect at all.

The flight as far as timings go was excellent. Unfortunately we ended up sat with someone on a night flight who had been drinking alcohol before boarding and BA staff were happily serving him more alcohol. He was very drunk which made our flight uncomfortable and awkward. My partner had this person lying on him whilst asleep. Alcohol should be served minimally. If there had been an emergency this person would not have been in a fit state to act accordingly.

Book cheap flights from Ontario to Southeast Europe

Recent round-trip flight deals

10/23Wed
2 stopsBritish Airways
23h 28mONT-OTP
11/12Tue
2 stopsBritish Airways
23h 28mOTP-ONT
$498
9/1Sun
2 stopsBritish Airways
26h 15mONT-OTP
9/23Mon
2 stopsBritish Airways
38h 32mOTP-ONT
$506
11/11Mon
2 stopsUnited Airlines
21h 46mONT-OTP
11/25Mon
2 stopsUnited Airlines
19h 26mOTP-ONT
$572
12/9Mon
2 stopsUnited Airlines
31h 05mONT-ZAG
12/23Mon
2 stopsUnited Airlines
40h 30mZAG-ONT
$632
8/20Tue
1 stopKLM
17h 55mONT-ATH
8/29Thu
1 stopKLM
19h 57mATH-ONT
$664
9/6Fri
2 stopsDelta
26h 17mONT-SPU
9/18Wed
2 stopsDelta
26h 01mSPU-ONT
$695
8/16Fri
2 stopsAmerican Airlines
23h 26mONT-ATH
8/26Mon
2 stopsAmerican Airlines
32h 19mATH-ONT
$731
7/13Sat
2 stopsDelta
27h 30mONT-ATH
9/13Fri
2 stopsDelta
27h 16mATH-ONT
$750
10/1Tue
2 stopsAmerican Airlines
29h 19mONT-ATH
10/15Tue
2 stopsAmerican Airlines
31h 33mATH-ONT
$782
8/21Wed
1 stopKLM
17h 55mONT-ATH
8/29Thu
1 stopKLM
19h 57mATH-ONT
$889

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Recent one-way flight deals

7/15Mon
3 stops
48h 43mONT-ATH
$397
9/9Mon
2 stopsAmerican Airlines
32h 25mONT-OTP
$432
8/7Wed
2 stopsBritish Airways
25h 40mONT-OTP
$446
8/6Tue
1 stopKLM
17h 55mONT-ATH
$493
9/22Sun
1 stopDelta
26h 40mONT-ATH
$508
7/15Mon
2 stopsDelta
19h 46mONT-ATH
$525
8/9Fri
2 stopsBritish Airways
21h 30mONT-OTP
$538
8/12Mon
3 stopsUnited Airlines
34h 25mONT-ATH
$576
7/15Mon
1 stopKLM
26h 40mONT-ATH
$593
7/8Mon
2 stopsUnited Airlines
20h 05mONT-DBV
$624

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Last minute flights from Ontario to Southeast Europe

Last minute flight, train and bus deals

6/16Sun
multi-stopUnited Airlines
30h 20mONT-ATH
6/23Sun
multi-stopUnited Airlines
42h 03mATH-ONT
$1,061
6/16Sun
multi-stopUnited Airlines
49h 26mONT-BEG
8/21Wed
multi-stopUnited Airlines
24h 21mBEG-ONT
$1,365
6/16Sun
multi-stopAmerican Airlines
25h 40mONT-ATH
8/18Sun
multi-stopAmerican Airlines
35h 47mATH-ONT
$1,473
6/15Sat
multi-stopAmerican Airlines
19h 05mONT-ATH
8/17Sat
multi-stopAmerican Airlines
24h 07mATH-ONT
$1,736
6/16Sun
multi-stopKLM
26h 40mONT-ATH
6/23Sun
multi-stopKLM
20h 31mATH-ONT
$2,124
6/17Mon
multi-stopBritish Airways
22h 16mONT-ATH
6/30Sun
multi-stopBritish Airways
24h 04mATH-ONT
$2,339
6/17Mon
multi-stopKLM
17h 35mONT-ATH
6/30Sun
multi-stopKLM
20h 05mATH-ONT
$2,588
6/15Sat
multi-stopBritish Airways
28h 51mONT-ZAG
7/31Wed
multi-stopBritish Airways
19h 24mZAG-ONT
$2,724
6/16Sun
multi-stopDelta
17h 35mONT-ATH
6/28Fri
multi-stopDelta
20h 05mATH-ONT
$3,906
6/16Sun
multi-stopDelta
17h 35mONT-ATH
6/24Mon
multi-stopDelta
20h 05mATH-ONT
$4,086

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Ontario - Southeast Europe Flights

Departure:

Ontario (ONT)United States

Return flight deals:

Southeast Europe - Ontario

Cabin classes:

$356
$153
$296
$37