HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Ontario

$772+ 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 12/5. Fares are subject to change and may not be available on all flights or dates of travel.
ATH — ONT
Nov 25 — Dec 21
Mon 11/25
Mon 12/2
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Athens to Ontario with Cheapflights

1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”
2. Select your favorite providers
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.
3. Compare prices and book
Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

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 November 20, 2024.

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 November 20, 2024.

This United Airlines deal was found by Cheapflights users on 11/19. 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.
Wed 12/116:15 amATH - ONT
2 stops24h 32mUnited Airlines
Wed 2/1210:47 amONT - ATH
2 stops19h 38mUnited Airlines
Deal found 11/19$899
This KLM deal was found by Cheapflights users on 11/20. 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.
Thu 11/216:00 amATH - ONT
2 stops20h 45mKLM
Thu 11/286:00 amONT - ATH
2 stops17h 55mKLM
Deal found 11/20$1,129
This Iberia deal was found by Cheapflights users on 11/20. 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.
Thu 11/217:30 amATH - ONT
2 stops26h 27mMultiple Airlines
Sat 11/307:08 amONT - ATH
2 stops22h 07mMultiple Airlines
Deal found 11/20$1,224
This British Airways deal was found by Cheapflights users on 11/20. 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 11/257:45 amATH - ONT
2 stops24h 17mBritish Airways
Wed 11/2711:59 pmONT - ATH
2 stops39h 16mBritish Airways
Deal found 11/20$1,231
This Gurufare deal was found by Cheapflights users on 11/19. 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 Gurufare is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/228:15 pmATH - ONT
2 stops37h 42mIberia
Sat 11/307:08 amONT - ATH
2 stops22h 07mIberia
Deal found 11/19$1,243
This Qatar Airways deal was found by Cheapflights users on 11/20. 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.
Wed 11/276:50 pmATH - ONT
2 stops32h 39mQatar Airways
Sun 12/82:54 pmONT - ATH
2 stops34h 51mQatar Airways
Deal found 11/20$18,249

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 2,629,791 searches. Data last updated November 20, 2024.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

AthensOntario

ATH - ONT

ATHONT

Athens Eleftherios V.

Thu 5/1

10:30 am-10:41 pm

1 stop22h 11m

Ontario

Sun 5/11

10:00 pm-10:50 am

1 stop26h 50m

$832

AthensOntario

ATH - ONT

ATHONT

Athens Eleftherios V.

Wed 12/11

6:15 am-8:47 pm

2 stops24h 32m

Ontario

Wed 2/12

10:47 am-4:25 pm

2 stops19h 38m

$899

AthensOntario

ATH - ONT

ATHONT

Athens Eleftherios V.

Wed 1/8

3:25 am-3:25 pm

2 stops22h 00m

Ontario

Fri 1/17

7:00 am-1:45 pm

2 stops20h 45m

$1,320

AthensOntario

ATH - ONT

ATHONT

Athens Eleftherios V.

Mon 4/28

10:30 am-7:42 pm

1 stop19h 12m

Ontario

Tue 5/6

7:00 am-10:50 am

1 stop17h 50m

$1,525

AthensOntario

ATH - ONT

ATHONT

Athens Eleftherios V.

Thu 1/23

6:50 pm-6:13 pm

2 stops33h 23m

Ontario

Tue 1/28

2:44 pm-11:45 am

2 stops35h 01m

$2,004

AthensOntario

ATH - ONT

ATHONT

Athens Eleftherios V.

Fri 5/2

7:25 am-10:22 pm

2 stops48h 57m

Ontario

Wed 5/14

7:00 am-10:50 am

1 stop17h 50m

$2,748

AthensOntario

ATH - ONT

ATHONT

Athens Eleftherios V.

Mon 5/5

2:25 pm-10:22 pm

2 stops41h 57m

Ontario

Sat 5/17

11:37 pm-6:30 am

2 stops44h 53m

$3,816

AthensOntario

ATH - ONT

ATHONT

Athens Eleftherios V.

Thu 12/5

6:50 pm-5:17 pm

2 stops32h 27m

$772

AthensOntario

ATH - ONT

ATHONT

Athens Eleftherios V.

Mon 1/13

7:45 am-10:16 pm

2 stops24h 31m

$808

AthensOntario

ATH - ONT

ATHONT

Athens Eleftherios V.

Sat 4/5

1:00 pm-10:58 pm

1 stop19h 58m

$818

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/19

Showing 1-10 of 17 results
1
2

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 November.
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, September is the cheapest month in which you can book a flight from Athens to Ontario (average of $236). Flying from Athens to Ontario in December is currently the most expensive (average of $298). 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 November 20, 2024.
Delta
8.0
Very good
8,756 reviews

Comfort

7.9

Crew

8.5

Boarding

8.2

Overall

8.0

Food

7.3

Entertainment

7.9

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
8,756 reviews
Delta
8.0
Very good
8,756 reviews

Comfort

7.9

Crew

8.5

Boarding

8.2

Overall

8.0

Food

7.3

Entertainment

7.9

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
1,350 reviews
Delta
8.0
Very good
8,756 reviews

Comfort

7.9

Crew

8.5

Boarding

8.2

Overall

8.0

Food

7.3

Entertainment

7.9

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
3,831 reviews
Delta
8.0
Very good
8,756 reviews

Comfort

7.9

Crew

8.5

Boarding

8.2

Overall

8.0

Food

7.3

Entertainment

7.9

Reviews

1 / 10

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

Air France
7.4
Good
1,523 reviews
Delta
8.0
Very good
8,756 reviews

Comfort

7.9

Crew

8.5

Boarding

8.2

Overall

8.0

Food

7.3

Entertainment

7.9

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
9,171 reviews
Delta
8.0
Very good
8,756 reviews

Comfort

7.9

Crew

8.5

Boarding

8.2

Overall

8.0

Food

7.3

Entertainment

7.9

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 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 Qatar Airways, which is currently one of the cheapest options available, starting at $772. British Airways flights start at $808 while deals on KLM start at $818 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, September is the cheapest month in which you can book a flight from Athens to Ontario (average of $236). Flying from Athens to Ontario in December is currently the most expensive (average of $298). 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

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.
100% Free
Cheapflights is completely free to use, so you can start saving the moment you arrive.
Book with Flexibility
Our users can plan ahead with confidence and find flights with no change fees
Travel Smart
Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.
View all available airlines