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Southeast Europe

$452+ Cheap flights from Ontario (ONT) to Southeast Europe

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 1/18. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — ATH
Dec 23 — Dec 301
Mon 12/23
Mon 12/30
1 adult, Economy
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Cheap flight deals from Ontario to Southeast Europe

Discover tips and strategies to find the most affordable flight options for your journey from Ontario (ONT) to Southeast Europe (zzYMH). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated December 18, 2024.

Round-trip from

$550
(British Airways)

One-way from

$452
(British Airways)
From Ontario to Southeast Europe
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One-way flight from Ontario to Southeast Europe
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Find flight deals from Ontario to Southeast Europe

Cheapest flights from Ontario to Southeast Europe
Explore the most affordable flight options available from Ontario to Southeast Europe. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 18, 2024.

This United Airlines deal was found by Cheapflights users on 12/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/2910:39 amONT - OTP
2 stops22h 01mUnited Airlines
Wed 1/156:05 amOTP - ONT
2 stops21h 59mUnited Airlines
Deal found 12/17$832
This Iberia deal was found by Cheapflights users on 12/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Iberia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/3110:46 amONT - ATH
2 stops18h 29mMultiple Airlines
Tue 1/147:45 amATH - ONT
2 stops25h 00mMultiple Airlines
Deal found 12/17$1,048
This United Airlines deal was found by Cheapflights users on 12/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/266:50 pmONT - ATH
2 stops44h 05mUnited Airlines
Fri 1/317:05 amATH - ONT
2 stops23h 24mUnited Airlines
Deal found 12/17$1,214
This Trip.com deal was found by Cheapflights users on 12/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/2212:59 amONT - ZAG
2 stops32h 56mMultiple Airlines
Mon 1/67:50 pmZAG - ONT
2 stops36h 54mMultiple Airlines
Deal found 12/17$2,182
This United Airlines deal was found by Cheapflights users on 12/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/206:00 amONT - BEG
2 stops32h 55mUnited Airlines
Mon 12/231:40 pmBEG - ONT
2 stops41h 49mUnited Airlines
Deal found 12/16$2,444
This British Airways deal was found by Cheapflights users on 12/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/3010:46 amONT - ATH
2 stops26h 24mBritish Airways
Wed 1/17:55 pmATH - ONT
2 stops32h 38mBritish Airways
Deal found 12/18$2,512
This United deal was found by Cheapflights users on 12/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/251:42 pmONT - CLJ
2 stops37h 58mMultiple Airlines
Tue 1/76:10 amCLJ - ONT
2 stops21h 54mMultiple Airlines
Deal found 12/17$2,528
This Iberia deal was found by Cheapflights users on 12/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Iberia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/282:50 pmONT - ATH
2 stops38h 25mIberia
Fri 1/38:15 pmATH - ONT
2 stops36h 13mIberia
Deal found 12/18$2,543
This United deal was found by Cheapflights users on 12/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/216:10 amONT - CLJ
2 stops21h 30mUnited Airlines
Fri 1/172:20 pmCLJ - ONT
2 stops40h 31mUnited Airlines
Deal found 12/18$2,589
This KAYAK deal was found by Cheapflights users on 12/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/214:25 pmONT - OTP
2 stops21h 20mBritish Airways
Mon 12/238:05 amOTP - ONT
2 stops24h 23mBritish Airways
Deal found 12/18$3,088
This British Airways deal was found by Cheapflights users on 12/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/182:54 pmONT - ZAG
2 stops20h 11mBritish Airways
Mon 12/308:00 pmZAG - ONT
2 stops31h 33mBritish Airways
Deal found 12/17$3,962
This United Airlines deal was found by Cheapflights users on 12/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/215:05 amONT - SJJ
3 stops21h 05mUnited Airlines
Mon 12/2311:50 amSJJ - ONT
2 stops20h 10mUnited Airlines
Deal found 12/17$4,266

Find flights from Ontario to Southeast Europe within your budget

Customize your flight search to find flights from Ontario to Southeast Europe that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated December 18, 2024.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

OntarioBucharest

ONT - OTP

ONTOTP

Ontario

Tue 1/14

4:25 pm-11:05 pm

2 stops20h 40m

Bucharest Otopeni Intl

Tue 1/21

4:25 pm-10:45 pm

2 stops40h 20m

$550

OntarioCluj Napoca

ONT - CLJ

ONTCLJ

Ontario

Mon 1/20

6:15 am-1:40 pm

2 stops21h 25m

Cluj Napoca

Mon 2/3

2:20 pm-6:04 pm

2 stops37h 44m

$558

OntarioBucharest

ONT - OTP

ONTOTP

Ontario

Tue 1/14

5:10 am-1:45 pm

2 stops22h 35m

Bucharest Otopeni Intl

Tue 1/21

6:00 am-6:04 pm

2 stops22h 04m

$565

OntarioBucharest

ONT - OTP

ONTOTP

Ontario

Fri 1/31

6:00 am-1:50 pm

2 stops21h 50m

Bucharest Otopeni Intl

Fri 2/7

6:00 am-10:52 pm

2 stops26h 52m

$611

OntarioAthens

ONT - ATH

ONTATH

Ontario

Wed 2/5

10:56 am-6:35 pm

2 stops21h 39m

Athens Eleftherios V.

Tue 2/18

7:55 pm-6:35 pm

2 stops32h 40m

$628

OntarioAthens

ONT - ATH

ONTATH

Ontario

Tue 2/4

10:47 am-4:25 pm

2 stops19h 38m

Athens Eleftherios V.

Wed 2/26

7:05 am-8:40 pm

2 stops23h 35m

$638

OntarioAthens

ONT - ATH

ONTATH

Ontario

Tue 2/4

6:00 am-1:45 pm

2 stops21h 45m

Athens Eleftherios V.

Sat 2/15

3:25 am-11:26 pm

2 stops30h 01m

$650

OntarioLjubljana

ONT - LJU

ONTLJU

Ontario

Tue 3/11

6:00 am-9:35 pm

2 stops31h 35m

Ljubljana Joze Pucnik

Wed 3/19

10:25 am-10:45 pm

2 stops20h 20m

$730

OntarioBelgrade

ONT - BEG

ONTBEG

Ontario

Mon 1/27

6:00 am-12:55 pm

2 stops21h 55m

Belgrade Nikola Tesla

Thu 2/27

6:20 am-8:40 pm

2 stops23h 20m

$733

OntarioZagreb

ONT - ZAG

ONTZAG

Ontario

Wed 2/5

10:47 am-1:45 pm

2 stops17h 58m

Zagreb Franjo Tuđman

Wed 2/19

6:05 am-8:40 pm

2 stops23h 35m

$735

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/17

Showing 1-10 of 55 results
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Best time to book a flight from Ontario to Southeast Europe

Have a flexible travel schedule? Discover the best time to fly to Southeast Europe from Ontario with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Travel insights for flights from Ontario to Southeast Europe

Get recent, data-driven insights about flights from Ontario to Southeast Europe including ideal travel times, pricing trends, and more.

What is the cheapest month to book a flight from Ontario to Southeast Europe?

Currently, November is the cheapest month in which you can book a flight from Ontario to Southeast Europe (average of $679). Flying from Ontario to Southeast Europe in June is currently the most expensive (average of $1,430). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from ONT to YMH?

Find hourly flight availability from Ontario to Southeast Europe. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated December 18, 2024.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Ontario to Southeast Europe as you normally would.

Rainfall in Southeast Europe by month

Plan your trip to Southeast Europe by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Southeast Europe ranges from 0.2 - 2.5 inches per month. December is typically the wettest month, when rainfall can reach 2.5 in. June is typically the driest time to visit Southeast Europe when rainfall is around 0.2 in.

Temperature in Southeast Europe by month

Plan your trip to Southeast Europe by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Southeast Europe, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 82.4 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 50.0 F).

Reviews of airlines servicing Southeast Europe

Get insights into the airlines that provide service to Southeast Europe. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Southeast Europe. Reviews last updated December 18, 2024.
To help decide which airline to fly from Ontario to Southeast Europe, see what other customers have to say about British Airways, Delta and KLM. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
8,604 reviews

Entertainment

7.9

Comfort

7.9

Overall

8.0

Food

7.3

Boarding

8.2

Crew

8.6

Reviews

1 / 10

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Delta
8.0
Very good
8,604 reviews
Delta
8.0
Very good
8,604 reviews

Entertainment

7.9

Comfort

7.9

Overall

8.0

Food

7.3

Boarding

8.2

Crew

8.6

Reviews

1 / 10

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

KLM
7.8
Good
1,349 reviews
Delta
8.0
Very good
8,604 reviews

Entertainment

7.9

Comfort

7.9

Overall

8.0

Food

7.3

Boarding

8.2

Crew

8.6

Reviews

1 / 10

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Virgin Atlantic
7.5
Good
668 reviews
Delta
8.0
Very good
8,604 reviews

Entertainment

7.9

Comfort

7.9

Overall

8.0

Food

7.3

Boarding

8.2

Crew

8.6

Reviews

1 / 10

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

JetBlue
7.4
Good
3,279 reviews
Delta
8.0
Very good
8,604 reviews

Entertainment

7.9

Comfort

7.9

Overall

8.0

Food

7.3

Boarding

8.2

Crew

8.6

Reviews

1 / 10

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Air France
7.4
Good
1,504 reviews
Delta
8.0
Very good
8,604 reviews

Entertainment

7.9

Comfort

7.9

Overall

8.0

Food

7.3

Boarding

8.2

Crew

8.6

Reviews

1 / 10

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Related info for your journey

Find useful and relevant information for your journey from Ontario to Southeast Europe. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly from for flights from Ontario to Southeast Europe?

    Ontario (ONT), located 3.1 mi from the city center, is the airport you fly out of when you book flights from Ontario to Southeast Europe.

  • What are the cheapest airlines to fly from Ontario to Southeast Europe one-way?

    The cheapest airlines for a one-way flight from Ontario to Southeast Europe are British Airways ($452), United Airlines ($463), and Iberia ($616).

  • What are the most popular routes from Ontario to Southeast Europe?

    The most popular flight routes from Ontario to Southeast Europe are Ontario - Athens Eleftherios V., Ontario - Bucharest Otopeni Intl and Ontario - Belgrade Nikola Tesla.

  • Can I find deals for flights from Ontario to Southeast Europe that include hotel bookings?

    Yes. In addition to deals on Ontario to Southeast Europe flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Ontario to Southeast Europe?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Ontario to Southeast Europe.

  • Can I find deals for business class flights from Ontario to Southeast Europe?

    Yes. Cheapflights offers flight deals from Ontario to Southeast Europe by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Ontario to Southeast Europe?

    Currently, November is the cheapest month in which you can book a flight from Ontario to Southeast Europe (average of $679). Flying from Ontario to Southeast Europe in June is currently the most expensive (average of $1,430). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

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Alternative routes for Ontario to Southeast Europe

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Top 5 airlines flying from Ontario to Southeast Europe

Discover the top 5 airlines that operate flights from Ontario to Southeast Europe. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated December 18, 2024.
AirlineCheapestAverageFlexibilityOn-time
British AirwaysCheapest$504Average$819FlexibilityNo cancel feeOn-time70%
United AirlinesCheapest$550Average$1,085FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$552Average$825FlexibilityNo cancel feeOn-time71%
DeltaCheapest$584Average$812FlexibilityNo cancel feeOn-timeN/A
KLMCheapest$618Average$1,225FlexibilityNo cancel feeOn-time75%
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