What are the cheapest airlines flying from Ontario to Athens round-trip?

According to our current data, Delta ($802), British Airways ($817), and United Airlines ($855) offers the cheapest pricing from Ontario to Athens. Delta is priced at 16% lower than the current average price of a flight leaving 3 months from now.

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

One-way options have recently been found by users for as low as $466 on United Airlines. Other airlines that offer cheap prices include Air Canada from $521 and British Airways from $537 one-way.

What are the most popular airlines that fly from Ontario to Athens?

When booking a flight from Ontario to Athens, you may want to consider flying on American Airlines, British Airways or Delta as they are the most popular for this route.

What is the cheapest day to fly round-trip from Ontario to Athens?

Users have found that flying from Ontario to Athens on a Wednesday typically leans towards higher prices. However, this doesn’t mean you still can’t find a deal. Flexibility with other aspects of your flight can still land a great price for your trip.

How far in advance should I book a flight from Ontario to Athens?

When searching for a good deal, it’s best to be prepared for potential fluctuations in price. We recommend booking at least 28 days in advance, which can save you up to 12% on flights from Ontario to Athens compared to booking the week you need them. Waiting 28 days out may not be for everyone, so we have options available for flights within the next two weeks, with the lowest price starting at $816. For sooner than that we have options available in the next 3 days from $816.

What is the cheapest month to fly from Ontario to Athens?

Our data shows that November tends to be the cheapest month to fly to Athens from Ontario. Users have commonly found prices around $853 for the month, but tickets can be as low as $475. Due to multiple factors, prepare for potentially higher prices in June.

Most accurate provider : When it comes to deals on Ontario-Athens flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Ontario-Athens flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Ontario-Athens flight searches over the past month and is updated monthly.

Most trusted provider : When it comes to deals on Ontario-Athens 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 Ontario-Athens flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

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

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

How can I find direct flights from Ontario to Athens?

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

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

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

$349+ Flights from Ontario to Athens

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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.

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Cheap flight deals from Ontario to Athens

Most accurate provider	FlightHub 3 stars
Most trusted provider	FlightHub 3 stars
Round-trip from	$753 (Air Canada)
One-way from	$349 (Kiwi.com)
Popular in	June
Cheapest in	March
Average price	$675

Provider with most accurate pricing for Ontario-Athens Eleftherios V. flight deals.

Search Deals

Provider most trusted by Cheapflights users for Ontario-Athens Eleftherios V. flights.

Search Deals

From Ontario to Athens Eleftherios V.

Search Deals

One-way flight from Ontario to Athens Eleftherios V.

Search Deals

Highest demand for flights based on searches. 26% potential increase in price ($340 potential increase over avg. RT price).

Search Deals

Cheapest flight prices on average. 5% potential price decrease ($51 potential savings vs. average RT price).

Search Deals

Average for round-trip flights in March 2025

Search Deals

Find flight deals from Ontario to Athens

Cheapest flights from Ontario to Athens
Explore the most affordable flight options available from Ontario to Athens. Find the lowest fares from popular airlines and budget airlines, with prices last updated on March 25, 2025.

Tue 3/256:00 amONT - ATH

2 stops18h 10mUnited Airlines

Tue 4/110:25 amATH - ONT

2 stops21h 33mUnited Airlines

Deal found 3/24

$652

Wed 9/2412:49 pmONT - ATH

2 stops20h 06mMultiple Airlines

Mon 10/208:45 pmATH - ONT

2 stops37h 17mMultiple Airlines

Deal found 3/24

$734

Tue 4/15:30 pmONT - ATH

2 stops28h 10mDelta

Tue 4/1510:30 amATH - ONT

1 stop22h 06mDelta

Deal found 3/24

$761

Fri 5/24:35 pmONT - ATH

2 stops33h 50mBritish Airways

Thu 5/87:50 pmATH - ONT

2 stops32h 33mBritish Airways

Deal found 3/23

$817

Sat 7/1910:28 pmONT - ATH

1 stop27h 27mAmerican Airlines

Wed 7/3012:00 pmATH - ONT

1 stop19h 38mAmerican Airlines

Deal found 3/24

$970

Mon 4/1410:15 pmONT - ATH

1 stop26h 40mKLM

Thu 4/2410:30 amATH - ONT

1 stop22h 06mKLM

Deal found 3/24

$1,002

Sat 9/203:00 pmONT - ATH

2 stops42h 35mIberia

Sat 10/48:15 pmATH - ONT

2 stops37h 21mIberia

Deal found 3/24

$1,051

Mon 9/2911:37 pmONT - ATH

2 stops29h 18mAir Serbia

Tue 10/214:30 amATH - ONT

2 stops27h 52mAir Serbia

Deal found 3/24

$1,102

Sun 6/85:10 amONT - ATH

3 stops21h 40mAir Canada

Fri 6/202:25 pmATH - ONT

3 stops32h 06mAir Canada

Deal found 3/24

$1,410

Thu 5/157:05 amONT - ATH

1 stop17h 50mAir France

Fri 5/233:25 amATH - ONT

2 stops22h 52mAir France

Deal found 3/24

$1,434

Best flights from Ontario to Athens
Discover carefully curated flight deals from Ontario to Athens that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated March 25, 2025.

Wed 8/136:00 amONT - ATH

2 stops18h 05mMultiple Airlines

Fri 8/2212:10 pmATH - ONT

2 stops19h 46mMultiple Airlines

Deal found 3/24

$753

Sat 4/2610:15 pmONT - ATH

1 stop26h 40mDelta

Wed 5/710:15 amATH - ONT

1 stop22h 14mDelta

Deal found 3/23

$802

Fri 5/24:35 pmONT - ATH

2 stops33h 50mBritish Airways

Thu 5/87:50 pmATH - ONT

2 stops32h 33mBritish Airways

Deal found 3/23

$817

Fri 8/157:00 amONT - ATH

1 stop17h 30mUnited Airlines

Fri 8/2212:35 pmATH - ONT

1 stop19h 51mUnited Airlines

Deal found 3/24

$855

Sat 7/1910:28 pmONT - ATH

1 stop27h 27mAmerican Airlines

Wed 7/3012:00 pmATH - ONT

1 stop19h 38mAmerican Airlines

Deal found 3/24

$970

Mon 4/1410:15 pmONT - ATH

1 stop26h 40mKLM

Thu 4/2410:30 amATH - ONT

1 stop22h 06mKLM

Deal found 3/24

$1,002

Sat 9/203:00 pmONT - ATH

2 stops42h 35mIberia

Sat 10/48:15 pmATH - ONT

2 stops37h 21mIberia

Deal found 3/24

$1,051

Mon 5/1910:59 pmONT - ATH

2 stops42h 26mAir Serbia

Mon 5/264:20 pmATH - ONT

2 stops38h 51mAir Serbia

Deal found 3/24

$1,221

Sun 6/85:10 amONT - ATH

3 stops21h 40mAir Canada

Fri 6/202:25 pmATH - ONT

3 stops32h 06mAir Canada

Deal found 3/24

$1,410

Thu 5/157:05 amONT - ATH

1 stop17h 50mAir France

Fri 5/233:25 amATH - ONT

2 stops22h 52mAir France

Deal found 3/24

$1,434

Last-minute flights from Ontario to Athens
Discover last-minute flight deals from Ontario to Athens. Data last updated March 25, 2025 and is based on user searches.

Mon 3/244:30 pmONT - ATH

2 stops21h 40mBritish Airways

Mon 3/318:30 amATH - ONT

2 stops23h 30mBritish Airways

Deal found 3/24

$2,602

Tue 3/256:00 amONT - ATH

2 stops18h 10mUnited Airlines

Tue 4/110:25 amATH - ONT

2 stops21h 33mUnited Airlines

Deal found 3/24

$652

Sat 3/295:05 amONT - ATH

2 stops18h 50mUnited Airlines

Mon 4/710:25 amATH - ONT

2 stops22h 30mUnited Airlines

Deal found 3/24

$689

Tue 4/15:00 amONT - ATH

2 stops20h 10mMultiple Airlines

Tue 4/151:10 pmATH - ONT

2 stops36h 07mMultiple Airlines

Deal found 3/24

$753

Tue 4/15:30 pmONT - ATH

2 stops28h 10mDelta

Tue 4/1510:30 amATH - ONT

1 stop22h 06mDelta

Deal found 3/24

$761

Mon 4/147:00 amONT - ATH

1 stop17h 55mKLM

Wed 4/2310:30 amATH - ONT

1 stop18h 58mKLM

Deal found 3/24

$1,002

One-way flights from Ontario to Athens
Search for one-way flight options from Ontario to Athens. Find affordable one-way fares based on user searches. Data last updated March 25, 2025.

Fri 5/24:29 pmONT - ATH

2 stops27h 31mMultiple Airlines

Deal found 3/24

$349

Sat 3/295:05 amONT - ATH

2 stops18h 50mUnited Airlines

Deal found 3/24

$466

Wed 5/75:05 amONT - ATH

2 stops20h 05mAir Canada

Deal found 3/24

$521

Wed 4/3010:54 amONT - ATH

2 stops19h 51mBritish Airways

Deal found 3/24

$537

Fri 8/110:59 pmONT - ATH

1 stop25h 01mKLM

Deal found 3/24

$578

Sat 5/35:30 pmONT - ATH

2 stops28h 50mDelta

Deal found 3/24

$586

Thu 4/247:00 amONT - ATH

2 stops22h 10mIberia

Deal found 3/24

$599

Sun 5/410:40 pmONT - ATH

2 stops31h 00mAir Serbia

Deal found 3/24

$666

Sat 6/1411:45 pmONT - ATH

2 stops23h 10mTurkish Airlines

Deal found 3/23

$910

Thu 6/1212:59 amONT - ATH

2 stops23h 01mAmerican Airlines

Deal found 3/24

$1,048

Cheapflights Fare Finder

Use the filters below to find and compare flights from Ontario to Athens that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

OntarioAthens

ONT - ATH

ONTATH

Ontario

Wed 8/13

6:00 am-10:05 am

2 stops18h 05m

Athens Eleftherios V.

Fri 8/22

12:10 pm-9:56 pm

2 stops19h 46m

$753

OntarioAthens

ONT - ATH

ONTATH

Ontario

Sat 4/26

10:15 pm-10:55 am

1 stop26h 40m

Athens Eleftherios V.

Wed 5/7

10:15 am-10:29 pm

1 stop22h 14m

$802

OntarioAthens

ONT - ATH

ONTATH

Ontario

Fri 5/2

4:35 pm-12:25 pm

2 stops33h 50m

Athens Eleftherios V.

Thu 5/8

7:50 pm-6:23 pm

2 stops32h 33m

$817

OntarioAthens

ONT - ATH

ONTATH

Ontario

Fri 8/15

7:00 am-10:30 am

1 stop17h 30m

Athens Eleftherios V.

Fri 8/22

12:35 pm-10:26 pm

1 stop19h 51m

$855

OntarioAthens

ONT - ATH

ONTATH

Ontario

Sat 7/19

10:28 pm-11:55 am

1 stop27h 27m

Athens Eleftherios V.

Wed 7/30

12:00 pm-9:38 pm

1 stop19h 38m

$970

OntarioAthens

ONT - ATH

ONTATH

Ontario

Mon 4/14

7:00 am-10:55 am

1 stop17h 55m

Athens Eleftherios V.

Wed 4/23

10:30 am-7:28 pm

1 stop18h 58m

$1,002

OntarioAthens

ONT - ATH

ONTATH

Ontario

Sat 9/20

3:00 pm-7:35 pm

2 stops42h 35m

Athens Eleftherios V.

Sat 10/4

8:15 pm-11:36 pm

2 stops37h 21m

$1,051

OntarioAthens

ONT - ATH

ONTATH

Ontario

Mon 5/19

10:59 pm-3:25 am

2 stops42h 26m

Athens Eleftherios V.

Mon 5/26

4:20 pm-9:11 pm

2 stops38h 51m

$1,221

OntarioAthens

ONT - ATH

ONTATH

Ontario

Sun 6/8

5:10 am-12:50 pm

3 stops21h 40m

Athens Eleftherios V.

Fri 6/20

2:25 pm-12:31 pm

3 stops32h 06m

$1,410

OntarioAthens

ONT - ATH

ONTATH

Ontario

Thu 5/15

7:05 am-10:55 am

1 stop17h 50m

Athens Eleftherios V.

Fri 5/23

3:25 am-4:17 pm

2 stops22h 52m

$1,434

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/24

Showing 1-10 of 20 results

Compare providers for flights from Ontario to Athens

Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Ontario to Athens in March.

Provider	Price Accuracy	Trust Score*
Expedia	Price Accuracy1 star	Trust Score*3 stars
FlightHub	Price Accuracy3 stars	Trust Score*3 stars
AranGrant	Price Accuracy3 stars	Trust Score*1 star
eDreams	Price Accuracy3 stars	Trust 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 Ontario-Athens flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Ontario-Athens flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Ontario-Athens flight searches over the past month and is updated monthly.
Most trusted provider: When it comes to deals on Ontario-Athens 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 Ontario-Athens 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 Ontario to Athens

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

Cheapflights Insights

Everything you need to know about your flight from Ontario to Athens

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

Currently, November is the cheapest month in which you can book a flight from Ontario to Athens (average of $679). Flying from Ontario to Athens in June is currently the most expensive (average of $1,353). 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 ATH?

When flying from Ontario to Athens, the time of day you fly usually plays a role in the price. Save by searching for a flight in the afternoon, which can drop the price by up to 26% versus a flight at noon.

What is the cheapest day to fly from Ontario to Athens?

Travelers seeking maximum savings on their Ontario to Athens flight should consider departing on Tuesday mornings when fares are most often at their lowest. Thursday afternoons flights should be avoided if possible as fares are typically the most expensive at this time.

Rainfall in Athens by month

In terms of precipitation, rainfall in Athens 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 Athens when rainfall is around 0.2 in.

Temperature in Athens by month

If weather is an important factor for your trip to Athens, 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 Athens

Peruse reviews from past customers who have flown with Delta, KLM and Air France from Ontario to Athens to help guide your decision. 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

7,890 reviews

Reviews

1 / 20

10.0

Excellent

Aaron,Oct 2024

LAX - LHR

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

Delta

8.0

Very good

7,890 reviews

Delta

8.0

Very good

7,890 reviews

Reviews

1 / 20

10.0

Excellent

Aaron,Oct 2024

LAX - LHR

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

KLM

7.8

Good

1,318 reviews

Delta

8.0

Very good

7,890 reviews

Reviews

1 / 20

10.0

Excellent

Aaron,Oct 2024

LAX - LHR

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

Air France

7.4

Good

1,423 reviews

Delta

8.0

Very good

7,890 reviews

Reviews

1 / 20

10.0

Excellent

Aaron,Oct 2024

LAX - LHR

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

United Airlines

7.4

Good

8,605 reviews

Delta

8.0

Very good

7,890 reviews

Reviews

1 / 20

10.0

Excellent

Aaron,Oct 2024

LAX - LHR

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

Turkish Airlines

7.3

Good

3,745 reviews

Delta

8.0

Very good

7,890 reviews

Reviews

1 / 20

10.0

Excellent

Aaron,Oct 2024

LAX - LHR

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

Related info for your journey

What are the cheapest airlines flying from Ontario to Athens round-trip?
According to our current data, Delta ($802), British Airways ($817), and United Airlines ($855) offers the cheapest pricing from Ontario to Athens. Delta is priced at 16% lower than the current average price of a flight leaving 3 months from now.
What are the cheapest airlines to fly from Ontario to Athens one-way?
One-way options have recently been found by users for as low as $466 on United Airlines. Other airlines that offer cheap prices include Air Canada from $521 and British Airways from $537 one-way.
Can I find deals for flights from Ontario to Athens that include hotel bookings?
Yes. In addition to deals on Ontario to Athens flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from Ontario to Athens?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Ontario to Athens.
Can I find deals for business class flights from Ontario to Athens?
Yes. Cheapflights offers flight deals from Ontario to Athens 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 Athens?
Currently, November is the cheapest month in which you can book a flight from Ontario to Athens (average of $679). Flying from Ontario to Athens in June is currently the most expensive (average of $1,353). 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

Glyfada

Piraeus

Aegina

Loutraki

Chalcis

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Top 5 airlines flying from Ontario to Athens

Airline	Cheapest	Average	Flexibility	On-time
British Airways	Cheapest$537	Average$894	FlexibilityNo cancel fee	On-time70%
United Airlines	Cheapest$550	Average$1,098	FlexibilityNo cancel fee	On-time69%
American Airlines	Cheapest$552	Average$824	FlexibilityNo cancel fee	On-time71%
Delta	Cheapest$571	Average$812	FlexibilityNo cancel fee	On-timeN/A
KLM	Cheapest$602	Average$1,371	FlexibilityNo cancel fee	On-time75%

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$349+ Cheap flights from Ontario (ONT) to Athens (ATH)

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 5/2. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Ontario to Athens with Cheapflights

1. Tell us where you want to go

2. Select your favorite providers

3. Compare prices and book

Cheap flight deals from Ontario to Athens

Most accurate provider

Most trusted provider

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Find flight deals from Ontario to Athens

Cheapest flights from Ontario to AthensExplore the most affordable flight options available from Ontario to Athens. Find the lowest fares from popular airlines and budget airlines, with prices last updated on March 25, 2025.

Explore the most affordable flight options available from Ontario to Athens. Find the lowest fares from popular airlines and budget airlines, with prices last updated on March 25, 2025.

Cheapflights Fare Finder

Use the filters below to find and compare flights from Ontario to Athens that are best for you.

Compare providers for flights from Ontario to Athens

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 Ontario to Athens in March.

Best time to book a flight from Ontario to Athens

Have a flexible travel schedule? Discover the best time to fly to Athens from Ontario with our price prediction graph.

Cheapflights Insights

Everything you need to know about your flight from Ontario to Athens

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

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

Find hourly flight availability from Ontario to Athens. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated March 25, 2025.

What is the cheapest day to fly from Ontario to Athens?

Use this chart to determine the cheapest time to fly round-trip from Ontario to Athens. Price data was last updated on December 16, 2024.

Rainfall in Athens by month

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

Temperature in Athens by month

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

Reviews of airlines servicing Athens

Peruse reviews from past customers who have flown with Delta, KLM and Air France from Ontario to Athens to help guide your decision. 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.

Related info for your journey

Find useful and relevant information for your journey from Ontario to Athens. 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 flying from Ontario to Athens round-trip?

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

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

How can I find direct flights from Ontario to Athens?

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

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

Traveling to a place near Ontario?

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for Ontario to Athens

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

Top 5 airlines flying from Ontario to Athens

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Cheapest flights from Ontario to Athens
Explore the most affordable flight options available from Ontario to Athens. Find the lowest fares from popular airlines and budget airlines, with prices last updated on March 25, 2025.