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$756+ Cheap flights from Athens (ATH) 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 6/23. Fares are subject to change and may not be available on all flights or dates of travel.
ATH — ONT
févr. 4 — févr. 111
mar. 2/4
mar. 2/11
1 adult, Economy
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Cheap flight deals from Athens to Ontario

Discover tips and strategies to find the most affordable flight options for your journey from Athens (ATH) 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 janvier 30, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$816
(American Airlines)

One-way from

$808
(Gotogate)

Popular in

July

Cheapest in

February

Average price

$839
Provider with most accurate pricing for Athens Eleftherios V.-Ontario flight deals.
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Provider most trusted by Cheapflights users for Athens Eleftherios V.-Ontario flights.
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From Athens Eleftherios V. to Ontario
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One-way flight from Athens Eleftherios V. to Ontario
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Highest demand for flights based on searches. 10% potential increase in price ($104 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($20 potential savings vs. average RT price).
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Average for round-trip flights in January 2025
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Find flight deals from Athens to Ontario

Cheapest flights from Athens to Ontario
Explore the most affordable flight options available from Athens to Ontario. Find the lowest fares from popular airlines and budget airlines, with prices last updated on janvier 30, 2025.

This American Airlines deal was found by Cheapflights users on 1/30. 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.
sam. 3/17:15 pmATH - ONT
2 stops33h 20mAmerican Airlines
sam. 3/86:00 amONT - ATH
2 stops21h 35mAmerican Airlines
Deal found 1/30$816
This United Airlines deal was found by Cheapflights users on 1/29. 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.
dim. 2/166:25 amATH - ONT
2 stops24h 15mUnited Airlines
mar. 3/43:30 pmONT - ATH
2 stops23h 25mUnited Airlines
Deal found 1/29$835
This KLM deal was found by Cheapflights users on 1/30. 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.
lun. 4/1410:30 amATH - ONT
1 stop19h 12mKLM
sam. 4/1910:59 pmONT - ATH
1 stop25h 56mKLM
Deal found 1/30$922
This Netflights deal was found by Cheapflights users on 1/30. 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 Netflights is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jeu. 4/2410:30 amATH - ONT
2 stops23h 15mVirgin Atlantic
mar. 5/61:30 pmONT - ATH
2 stops32h 50mVirgin Atlantic
Deal found 1/30$1,026
This Iberia deal was found by Cheapflights users on 1/30. 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.
mar. 2/187:45 amATH - ONT
2 stops24h 31mMultiple Airlines
ven. 2/212:54 pmONT - ATH
2 stops18h 41mMultiple Airlines
Deal found 1/30$1,133
This Air Serbia deal was found by Cheapflights users on 1/30. 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 Serbia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 7/281:15 pmATH - ONT
2 stops43h 15mAir Serbia
lun. 8/411:45 pmONT - ATH
2 stops41h 40mAir Serbia
Deal found 1/30$1,218
This Qatar Airways deal was found by Cheapflights users on 1/30. 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.
sam. 3/16:50 pmATH - ONT
2 stops33h 29mQatar Airways
sam. 3/811:57 amONT - ATH
2 stops37h 48mQatar Airways
Deal found 1/30$1,595
This Delta deal was found by Cheapflights users on 1/30. 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.
jeu. 6/199:10 amATH - ONT
1 stop20h 19mDelta
ven. 6/2710:59 pmONT - ATH
1 stop24h 31mDelta
Deal found 1/30$1,882
This Etihad Airways deal was found by Cheapflights users on 1/30. 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.
mar. 7/12:55 pmATH - ONT
2 stops41h 35mEtihad Airways
ven. 7/1111:45 pmONT - ATH
2 stops44h 45mEtihad Airways
Deal found 1/30$4,820

Find flights from Athens to Ontario within your budget

Customize your flight search to find flights from Athens 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 janvier 30, 2025.

Fly from

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Fly to

Any airport

Route

Depart

Return

Price

AthensOntario

ATH - ONT

ATHONT

Athens Eleftherios V.

sam. 3/1

7:15 pm-6:35 pm

2 stops33h 20m

Ontario

sam. 3/8

6:00 am-1:35 pm

2 stops21h 35m

$816

AthensOntario

ATH - ONT

ATHONT

Athens Eleftherios V.

dim. 2/16

6:25 am-8:40 pm

2 stops24h 15m

Ontario

mar. 3/4

3:30 pm-12:55 am

2 stops23h 25m

$835

AthensOntario

ATH - ONT

ATHONT

Athens Eleftherios V.

lun. 4/14

10:30 am-7:42 pm

1 stop19h 12m

Ontario

sam. 4/19

10:59 pm-10:55 am

1 stop25h 56m

$922

AthensOntario

ATH - ONT

ATHONT

Athens Eleftherios V.

jeu. 4/24

10:30 am-11:45 pm

2 stops23h 15m

Ontario

mar. 5/6

1:30 pm-8:20 am

2 stops32h 50m

$1,026

AthensOntario

ATH - ONT

ATHONT

Athens Eleftherios V.

mar. 2/18

7:45 am-10:16 pm

2 stops24h 31m

Ontario

ven. 2/21

2:54 pm-7:35 pm

2 stops18h 41m

$1,133

AthensOntario

ATH - ONT

ATHONT

Athens Eleftherios V.

lun. 7/28

1:15 pm-10:30 pm

2 stops43h 15m

Ontario

lun. 8/4

11:45 pm-3:25 am

2 stops41h 40m

$1,218

AthensOntario

ATH - ONT

ATHONT

Athens Eleftherios V.

sam. 3/1

6:50 pm-6:19 pm

2 stops33h 29m

Ontario

sam. 3/8

11:57 am-11:45 am

2 stops37h 48m

$1,595

AthensOntario

ATH - ONT

ATHONT

Athens Eleftherios V.

jeu. 6/19

9:10 am-7:29 pm

1 stop20h 19m

Ontario

ven. 6/27

10:59 pm-9:30 am

1 stop24h 31m

$1,882

AthensOntario

ATH - ONT

ATHONT

Athens Eleftherios V.

mar. 7/1

2:55 pm-10:30 pm

2 stops41h 35m

Ontario

ven. 7/11

11:45 pm-6:30 am

2 stops44h 45m

$4,820

AthensOntario

ATH - ONT

ATHONT

Athens Eleftherios V.

lun. 6/23

4:20 pm-10:30 pm

2 stops40h 10m

$756

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/30

Showing 1-10 of 18 results
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Compare providers for flights from Athens to Ontario

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Athens to Ontario in January.
ProviderPrice AccuracyTrust Score*
FlightHubPrice Accuracy3 starsTrust Score*3 stars
eDreamsPrice Accuracy3 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Athens-Ontario flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Athens-Ontario flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Athens-Ontario flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Athens-Ontario flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Athens-Ontario flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Athens to Ontario

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

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

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

Currently, August is the cheapest month in which you can book a flight from Athens to Ontario (average of $246). Flying from Athens 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 janvier 30, 2025.
Delta
8.0
Very good
8,454 reviews

Overall

8.0

Crew

8.5

Boarding

8.2

Food

7.3

Comfort

8.0

Entertainment

7.9

Reviews

1 / 20

10.0
Excellent

Aaron,Oct 2024

TUS - LAX

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

Delta
8.0
Very good
8,454 reviews
Delta
8.0
Very good
8,454 reviews

Overall

8.0

Crew

8.5

Boarding

8.2

Food

7.3

Comfort

8.0

Entertainment

7.9

Reviews

1 / 20

10.0
Excellent

Aaron,Oct 2024

TUS - LAX

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

KLM
7.8
Good
1,335 reviews
Delta
8.0
Very good
8,454 reviews

Overall

8.0

Crew

8.5

Boarding

8.2

Food

7.3

Comfort

8.0

Entertainment

7.9

Reviews

1 / 20

10.0
Excellent

Aaron,Oct 2024

TUS - LAX

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

Qatar Airways
7.5
Good
3,718 reviews
Delta
8.0
Very good
8,454 reviews

Overall

8.0

Crew

8.5

Boarding

8.2

Food

7.3

Comfort

8.0

Entertainment

7.9

Reviews

1 / 20

10.0
Excellent

Aaron,Oct 2024

TUS - LAX

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

Virgin Atlantic
7.5
Good
657 reviews
Delta
8.0
Very good
8,454 reviews

Overall

8.0

Crew

8.5

Boarding

8.2

Food

7.3

Comfort

8.0

Entertainment

7.9

Reviews

1 / 20

10.0
Excellent

Aaron,Oct 2024

TUS - LAX

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

United Airlines
7.4
Good
8,913 reviews
Delta
8.0
Very good
8,454 reviews

Overall

8.0

Crew

8.5

Boarding

8.2

Food

7.3

Comfort

8.0

Entertainment

7.9

Reviews

1 / 20

10.0
Excellent

Aaron,Oct 2024

TUS - LAX

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 Athens to Ontario. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

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

    To fly one-way, consider booking your trip with British Airways, which is currently one of the cheapest options available, starting at $808. KLM flights start at $813 while deals on Qatar Airways start at $894 one-way.

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

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

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

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

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

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

    Currently, August is the cheapest month in which you can book a flight from Athens to Ontario (average of $246). Flying from Athens 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.

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