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$562+ Cheap flights from Greece to Ontario (ONT)

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 7/15. Fares are subject to change and may not be available on all flights or dates of travel.
ATH — ONT
Jan 26 — Feb 21
Sun 1/26
Sun 2/2
1 adult, Economy
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Cheap flight deals from Greece to Ontario

Discover tips and strategies to find the most affordable flight options for your journey from Greece (GR0) to Ontario (ONT). 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 January 21, 2025.

Round-trip from

$741
(British Airways)

One-way from

$562
(Kiwi.com)
From Greece to Ontario
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One-way flight from Greece to Ontario
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Find flight deals from Greece to Ontario

Cheapest flights from Greece to Ontario
Explore the most affordable flight options available from Greece to Ontario. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 21, 2025.

This British Airways deal was found by Cheapflights users on 1/21. 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.
Thu 2/67:50 pmATH - ONT
2 stops32h 47mBritish Airways
Mon 2/103:04 pmONT - ATH
2 stops22h 06mBritish Airways
Deal found 1/21$741
This KLM deal was found by Cheapflights users on 1/21. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 2/53:25 amATH - ONT
2 stops23h 03mMultiple Airlines
Mon 2/101:00 pmONT - ATH
2 stops26h 05mMultiple Airlines
Deal found 1/21$783
This American Airlines deal was found by Cheapflights users on 1/21. 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.
Thu 2/67:30 amATH - ONT
3 stops24h 46mAmerican Airlines
Mon 2/107:00 amONT - ATH
2 stops25h 55mAmerican Airlines
Deal found 1/21$831
This United Airlines deal was found by Cheapflights users on 1/21. 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 3/87:00 amATH - ONT
2 stops23h 57mUnited Airlines
Sat 3/226:00 amONT - ATH
2 stops18h 10mUnited Airlines
Deal found 1/21$1,058
This KLM deal was found by Cheapflights users on 1/21. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/139:10 amATH - ONT
1 stop23h 19mKLM
Sat 9/610:59 pmONT - ATH
1 stop24h 31mKLM
Deal found 1/21$1,189
This Qatar Airways deal was found by Cheapflights users on 1/21. 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 Qatar Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 2/66:50 pmATH - ONT
2 stops33h 23mQatar Airways
Mon 2/103:04 pmONT - ATH
2 stops34h 41mQatar Airways
Deal found 1/21$1,671
This Etihad Airways deal was found by Cheapflights users on 1/21. 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 Etihad Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/132:25 pmATH - ONT
2 stops40h 59mEtihad Airways
Sat 9/611:37 pmONT - ATH
2 stops44h 53mEtihad Airways
Deal found 1/21$3,537

Find flights from Greece to Ontario within your budget

Customize your flight search to find flights from Greece to Ontario 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 January 21, 2025.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

AthensOntario

ATH - ONT

ATHONT

Athens Eleftherios V.

Thu 2/6

7:50 pm-6:37 pm

2 stops32h 47m

Ontario

Mon 2/10

3:04 pm-11:10 pm

2 stops22h 06m

$741

AthensOntario

ATH - ONT

ATHONT

Athens Eleftherios V.

Wed 2/5

3:25 am-4:28 pm

2 stops23h 03m

Ontario

Mon 2/10

1:00 pm-1:05 am

2 stops26h 05m

$783

AthensOntario

ATH - ONT

ATHONT

Athens Eleftherios V.

Thu 2/6

7:30 am-10:16 pm

3 stops24h 46m

Ontario

Mon 2/10

7:00 am-6:55 pm

2 stops25h 55m

$831

AthensOntario

ATH - ONT

ATHONT

Athens Eleftherios V.

Sat 3/8

7:00 am-8:57 pm

2 stops23h 57m

Ontario

Sat 3/22

6:00 am-9:10 am

2 stops18h 10m

$1,058

AthensOntario

ATH - ONT

ATHONT

Athens Eleftherios V.

Thu 2/6

6:50 pm-6:13 pm

2 stops33h 23m

Ontario

Mon 2/10

3:04 pm-11:45 am

2 stops34h 41m

$1,671

AthensOntario

ATH - ONT

ATHONT

Athens Eleftherios V.

Mon 3/17

6:00 am-4:42 pm

2 stops19h 42m

Ontario

Thu 3/20

1:30 pm-4:35 pm

2 stops18h 05m

$5,817

AthensOntario

ATH - ONT

ATHONT

Athens Eleftherios V.

Tue 7/15

10:45 pm-7:23 am

3 stops42h 38m

$562

AthensOntario

ATH - ONT

ATHONT

Athens Eleftherios V.

Sun 5/18

3:40 pm-9:22 pm

2 stops39h 42m

$642

AthensOntario

ATH - ONT

ATHONT

Athens Eleftherios V.

Wed 4/2

10:30 am-10:43 pm

1 stop22h 13m

$785

AthensOntario

ATH - ONT

ATHONT

Athens Eleftherios V.

Fri 6/27

5:25 am-6:59 pm

2 stops23h 34m

$800

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/21

Showing 1-10 of 16 results
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Best time to book a flight from Greece to Ontario

Have a flexible travel schedule? Discover the best time to fly to Ontario from Greece 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 Greece to Ontario

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

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

Currently, August is the cheapest month in which you can book a flight from Greece to Ontario (average of $246). Flying from Greece to Ontario in March is currently the most expensive (average of $310). 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.

Rainfall in Ontario by month

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

In terms of precipitation, rainfall in Ontario ranges from 0.1 - 3.4 inches per month. February is typically the wettest month, when rainfall can reach 3.4 in. June is typically the driest time to visit Ontario when rainfall is around 0.1 in.

Temperature in Ontario by month

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

If weather is an important factor for your trip to Ontario, use this chart to help with planning. For those seeking warmer temperatures, August is the ideal time of year to visit, when temperatures reach an average of 78.8 F. Travelers looking to avoid the cold should look outside of December, when temperatures are typically at their lowest (around 53.6 F).

Reviews of airlines servicing Ontario

Get insights into the airlines that provide service to Ontario. 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 Ontario. Reviews last updated January 21, 2025.
See what other customers who have flown with British Airways and United Airlines from Greece to Ontario have to say. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
8,521 reviews

Food

7.3

Entertainment

7.9

Boarding

8.2

Comfort

8.0

Crew

8.6

Overall

8.0

Reviews

1 / 10

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Delta
8.0
Very good
8,521 reviews
Delta
8.0
Very good
8,521 reviews

Food

7.3

Entertainment

7.9

Boarding

8.2

Comfort

8.0

Crew

8.6

Overall

8.0

Reviews

1 / 10

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

KLM
7.8
Good
1,341 reviews
Delta
8.0
Very good
8,521 reviews

Food

7.3

Entertainment

7.9

Boarding

8.2

Comfort

8.0

Crew

8.6

Overall

8.0

Reviews

1 / 10

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Qatar Airways
7.5
Good
3,752 reviews
Delta
8.0
Very good
8,521 reviews

Food

7.3

Entertainment

7.9

Boarding

8.2

Comfort

8.0

Crew

8.6

Overall

8.0

Reviews

1 / 10

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

United Airlines
7.4
Good
8,985 reviews
Delta
8.0
Very good
8,521 reviews

Food

7.3

Entertainment

7.9

Boarding

8.2

Comfort

8.0

Crew

8.6

Overall

8.0

Reviews

1 / 10

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

American Airlines
7.2
Good
10,000 reviews
Delta
8.0
Very good
8,521 reviews

Food

7.3

Entertainment

7.9

Boarding

8.2

Comfort

8.0

Crew

8.6

Overall

8.0

Reviews

1 / 10

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Related info for your journey

Find useful and relevant information for your journey from Greece to Ontario. 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 into for flights to Ontario from Greece?

    Most people fly into Ontario (ONT) if they book a flight to Ontario from Greece. Ontario is conveniently located just 3.1 mi from Ontario’s city center.

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

    The cheapest airlines for a one-way flight from Greece to Ontario are Air Serbia ($642), KLM ($785), and British Airways ($800).

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

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

  • How can I find direct flights from Greece to Ontario?

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

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

    Yes. Cheapflights offers flight deals from Greece to Ontario 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 Greece to Ontario?

    Currently, August is the cheapest month in which you can book a flight from Greece to Ontario (average of $246). Flying from Greece to Ontario in March is currently the most expensive (average of $310). 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 Greece to Ontario

See prices for flight routes from nearby airports that may be better suited for you.
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