$672 Find Cheap Flights from Southeast Europe to Ontario

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight to Ontario departing on 6/30. 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.
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Cheap Flight Deals from Southeast Europe to Ontario

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Southeast Europe to Ontario 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.

Recent round-trip flight deals from Southeast Europe to Ontario

KAYAK's recommended round-trip deals from the most popular airlines that fly from Southeast Europe to Ontario.
Discover the best prices for you by selecting your travel dates on KAYAK.
United Airlines Logo
6:10 am - 8:33 pmBEG-ONT
23h 23m2 stops
United Airlines Logo
6:04 am - 12:35 pmONT-BEG
21h 31m2 stops
$852United Airlines
Find Deal
Mon, Sep 1 - Mon, Sep 15
Delta Logo
12:35 pm - 11:43 pmBEG-ONT
20h 08m2 stops
Delta Logo
5:05 pm - 10:55 pmONT-BEG
20h 50m2 stops
$870Delta
Find Deal
Fri, Aug 29 - Fri, Sep 12
British Airways Logo
8:25 am - 7:01 pmOTP-ONT
20h 36m2 stops
British Airways Logo
12:51 pm - 5:25 pmONT-OTP
18h 34m2 stops
$870British Airways
Find Deal
Mon, Jun 9 - Mon, Oct 13
British Airways Logo
6:55 am - 5:51 pmATH-ONT
20h 56m2 stops
British Airways Logo
3:00 pm - 12:55 amONT-ATH
23h 55m2 stops
$871British Airways
Find Deal
Tue, Sep 16 - Thu, Sep 25
Air Serbia Logo
7:50 am - 10:30 pmBEG-ONT
23h 40m1 stop
Air Serbia Logo
11:00 pm - 4:40 amONT-BEG
20h 40m1 stop
$1,007Air Serbia
Find Deal
Tue, Sep 2 - Mon, Sep 15
KLM Logo
12:10 pm - 10:29 pmATH-ONT
20h 19m1 stop
KLM Logo
7:00 am - 10:00 amONT-ATH
17h 00m1 stop
$1,050KLM
Find Deal
Tue, Aug 19 - Sun, Aug 31
KLM Logo
9:10 am - 7:33 pmATH-ONT
20h 23m1 stop
KLM Logo
10:59 pm - 10:00 amONT-ATH
25h 01m1 stop
$1,064KLM
Find Deal
Sun, May 18 - Fri, Oct 3
 Logo
5:55 pm - 9:56 pmZAG-ONT
37h 01m2 stops
 Logo
11:59 pm - 11:05 pmONT-ZAG
38h 06m2 stops
$1,097
Find Deal
Tue, Sep 16 - Sat, Sep 20
Air Serbia Logo
7:50 am - 10:30 pmBEG-ONT
23h 40m1 stop
Air Serbia Logo
11:00 pm - 4:40 amONT-BEG
20h 40m1 stop
$1,146Air Serbia
Find Deal
Tue, Sep 2 - Sun, Sep 14
 Logo
10:30 am - 10:29 pmATH-ONT
21h 59m1 stop
 Logo
7:05 am - 10:55 amONT-ATH
17h 50m1 stop
$1,173
Find Deal
Thu, May 15 - Mon, May 19
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Good to know

Cheapest flight$672
Flight from Sofia to Ontario

FAQs for booking flights from Southeast Europe to Ontario

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

    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 Southeast Europe to Ontario.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Ontario from 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 Southeast Europe to Ontario?

    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 Ontario with an airline and back to Southeast Europe with another airline.

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

    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 Ontario from Southeast Europe up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Top airline flying from Southeast Europe to Ontario

Need help choosing which airline to fly with from Southeast Europe to Ontario? 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 8696 reviews
6.6Food
7.1Entertainment
8.1Crew
7.3Comfort
7.7Boarding
Airline reviews

A bit rush for transit. Food and entertainment are not available

8.0 ExcellentAnonymous, Apr 2025ORD - SFO
Read more United Airlines reviews

A bit rush for transit. Food and entertainment are not available

Wonderful and fast TSA checkpoint. The line was fast and our gate was close by

The gate was too far away for the connecting flight

Generally good. The aisles have gotten narrower which can slow down boarding. Flight crew was great! Healthier complimentary snacks would be appreciated. Due to earthquake in San Francisco we had to circle in air space for a bit but then had a smooth landing. I laud the flight crew for their patience ;)

We tried to upgrade to economy premium but were told this was not possible as we had booked through United Airlines (and Air Canada was operating the flight). This seemed silly given there was ample space in economy premium. Additionally, we had to wait almost 1.5 hours upon arrival to taxi to the gate. Otherwise, the crew were very pleasant and passengers were friendly.

headphone jack didnt work for the first flight and not much variety

The agents was very rude and they charged me $50 for a carry-on bag saying that it was too big and then I saw someone going on a plane with the same size bag as me

For the most part united was a good experience, how ever when they came by with the snacks and water, they completely passed by my wife and I. As we were in separate rows. On a 5 hr flight we were not offered water

Fantastic crew. Flight was delayed at last minute but we were given updates every 20 minutes and the crew was so friendly and considerate. I miss the touch screens on the back of the seats, wish they would bring that back though.

Beijing PEK to SFO. I had an economy seat on this flight. The seat comfort was acceptable. My main complaint is with the FA’s lack of personality and absence from servicing the plane, specifically restroom care (I wish I could share a pic of the restroom that I captured) and care of travelers—drink cart/availability of drinks. I'm amazed at the level of service on other International travel where a passenger is most often appreciated.

Everything you need to know for your flight to Ontario

Information on the airport you'll fly into in Ontario

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