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Southeast Europe

$432+ 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 2/16. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — ATH
ene. 22 — ene. 291
mié. 1/22
mié. 1/29
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 enero 17, 2025.

Round-trip from

$519
(British Airways)

One-way from

$432
(United Airlines)
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 enero 17, 2025.

This British Airways deal was found by Cheapflights users on 1/16. 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 British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 3/194:30 pmONT - OTP
2 stops22h 00mBritish Airways
mié. 4/28:25 amOTP - ONT
2 stops20h 08mBritish Airways
Deal found 1/16$519
This oojo deal was found by Cheapflights users on 1/15. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 2/510:56 amONT - ATH
2 stops21h 39mBritish Airways
mar. 2/187:45 amATH - ONT
2 stops24h 31mBritish Airways
Deal found 1/15$556
This United Airlines deal was found by Cheapflights users on 1/16. 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.
lun. 1/2710:47 amONT - CLJ
2 stops16h 53mUnited Airlines
lun. 2/102:20 pmCLJ - ONT
2 stops37h 44mUnited Airlines
Deal found 1/16$559
This American Airlines deal was found by Cheapflights users on 1/15. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 2/54:25 pmONT - ATH
2 stops22h 35mAmerican Airlines
mar. 2/187:45 amATH - ONT
3 stops24h 31mAmerican Airlines
Deal found 1/15$560
This United Airlines deal was found by Cheapflights users on 1/15. 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.
mié. 3/510:36 amONT - OTP
2 stops21h 54mUnited Airlines
vie. 4/46:05 amOTP - ONT
2 stops24h 37mUnited Airlines
Deal found 1/15$583
This Delta deal was found by Cheapflights users on 1/16. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 1/286:00 amONT - ATH
2 stops21h 45mDelta
vie. 2/76:00 amATH - ONT
2 stops26h 32mDelta
Deal found 1/16$586
This Tripair deal was found by Cheapflights users on 1/16. 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 Tripair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom. 2/161:05 pmONT - SKG
2 stops37h 45mKLM
mar. 3/41:40 pmSKG - ONT
2 stops36h 48mKLM
Deal found 1/16$596
This United Airlines deal was found by Cheapflights users on 1/16. 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.
sáb. 2/157:40 pmONT - ATH
2 stops43h 15mUnited Airlines
jue. 5/112:05 pmATH - ONT
2 stops36h 59mUnited Airlines
Deal found 1/16$599
This Iberia deal was found by Cheapflights users on 1/16. 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 Iberia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 1/302:44 pmONT - ATH
2 stops24h 31mMultiple Airlines
jue. 2/67:30 amATH - ONT
2 stops24h 46mMultiple Airlines
Deal found 1/16$608
This Delta deal was found by Cheapflights users on 1/16. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 4/125:15 pmONT - OTP
2 stops38h 05mDelta
jue. 5/16:30 amOTP - ONT
2 stops27h 15mDelta
Deal found 1/16$666
This Air Canada deal was found by Cheapflights users on 1/15. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 2/55:10 amONT - ATH
3 stops22h 20mAir Canada
mar. 2/186:35 amATH - ONT
3 stops24h 17mAir Canada
Deal found 1/15$676
This British Airways deal was found by Cheapflights users on 1/15. 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.
jue. 1/306:00 amONT - ZAG
2 stops22h 15mBritish Airways
lun. 2/38:00 pmZAG - ONT
2 stops35h 45mBritish Airways
Deal found 1/15$709

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 enero 17, 2025.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

OntarioBucharest

ONT - OTP

ONTOTP

Ontario

mié. 3/19

4:30 pm-11:30 pm

2 stops22h 00m

Bucharest Otopeni Intl

mié. 4/2

8:25 am-6:33 pm

2 stops20h 08m

$519

OntarioAthens

ONT - ATH

ONTATH

Ontario

mié. 2/5

10:56 am-6:35 pm

2 stops21h 39m

Athens Eleftherios V.

mar. 2/18

7:45 am-10:16 pm

2 stops24h 31m

$556

OntarioCluj Napoca

ONT - CLJ

ONTCLJ

Ontario

lun. 1/27

10:47 am-1:40 pm

2 stops16h 53m

Cluj Napoca

lun. 2/10

2:20 pm-6:04 pm

2 stops37h 44m

$559

OntarioAthens

ONT - ATH

ONTATH

Ontario

mié. 2/5

4:25 pm-1:00 am

2 stops22h 35m

Athens Eleftherios V.

mar. 2/18

7:45 am-10:16 pm

3 stops24h 31m

$560

OntarioBucharest

ONT - OTP

ONTOTP

Ontario

mié. 3/5

10:36 am-6:30 pm

2 stops21h 54m

Bucharest Otopeni Intl

vie. 4/4

6:05 am-8:42 pm

2 stops24h 37m

$583

OntarioAthens

ONT - ATH

ONTATH

Ontario

mar. 1/28

6:00 am-1:45 pm

2 stops21h 45m

Athens Eleftherios V.

mié. 2/5

6:00 am-10:32 pm

2 stops26h 32m

$586

OntarioThessaloniki

ONT - SKG

ONTSKG

Ontario

dom. 2/16

1:05 pm-12:50 pm

2 stops37h 45m

Thessaloniki Makedonia

mar. 3/4

1:40 pm-4:28 pm

2 stops36h 48m

$596

OntarioAthens

ONT - ATH

ONTATH

Ontario

sáb. 2/15

7:40 pm-12:55 am

2 stops43h 15m

Athens Eleftherios V.

jue. 5/1

12:05 pm-3:04 pm

2 stops36h 59m

$599

OntarioAthens

ONT - ATH

ONTATH

Ontario

jue. 1/30

2:44 pm-1:15 am

2 stops24h 31m

Athens Eleftherios V.

jue. 2/6

7:30 am-10:16 pm

2 stops24h 46m

$608

OntarioBucharest

ONT - OTP

ONTOTP

Ontario

sáb. 4/12

5:15 pm-5:20 pm

2 stops38h 05m

Bucharest Otopeni Intl

jue. 5/1

6:30 am-11:45 pm

2 stops27h 15m

$666

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/16

Showing 1-10 of 58 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 $1,424). 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 enero 17, 2025.

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 enero 17, 2025.
To help decide which airline to fly from Ontario to Southeast Europe, see what other customers have to say about Iberia, American Airlines and British Airways. 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
8,511 reviews

Food

7.3

Entertainment

7.9

Crew

8.6

Boarding

8.2

Overall

8.0

Comfort

8.0

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
8,511 reviews
Delta
8.0
Very good
8,511 reviews

Food

7.3

Entertainment

7.9

Crew

8.6

Boarding

8.2

Overall

8.0

Comfort

8.0

Reviews

1 / 10

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

KLM
7.8
Good
1,339 reviews
Delta
8.0
Very good
8,511 reviews

Food

7.3

Entertainment

7.9

Crew

8.6

Boarding

8.2

Overall

8.0

Comfort

8.0

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
1,487 reviews
Delta
8.0
Very good
8,511 reviews

Food

7.3

Entertainment

7.9

Crew

8.6

Boarding

8.2

Overall

8.0

Comfort

8.0

Reviews

1 / 10

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

United Airlines
7.4
Good
8,965 reviews
Delta
8.0
Very good
8,511 reviews

Food

7.3

Entertainment

7.9

Crew

8.6

Boarding

8.2

Overall

8.0

Comfort

8.0

Reviews

1 / 10

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

American Airlines
7.2
Good
10,000 reviews
Delta
8.0
Very good
8,511 reviews

Food

7.3

Entertainment

7.9

Crew

8.6

Boarding

8.2

Overall

8.0

Comfort

8.0

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 United Airlines ($432), Iberia ($451), and British Airways ($452).

  • 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 - Split.

  • 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 $1,424). 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

See prices for flight routes from nearby airports that may be better suited for you.
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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 enero 17, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$550Average$1,085FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$552Average$825FlexibilityNo cancel feeOn-time71%
DeltaCheapest$584Average$812FlexibilityNo cancel feeOn-timeN/A
British AirwaysCheapest$601Average$933FlexibilityNo cancel feeOn-time70%
KLMCheapest$618Average$1,225FlexibilityNo cancel feeOn-time75%
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