Which airports can I use when flying from Ontario to Athens?

Flights from Ontario to Athens usually depart from Ontario (ONT) and arrive at Athens Eleftherios V. (ATH).

What cabin classes can I book on flights from Ontario to Athens?

Only Economy Class is available on flights from Ontario to Athens.

Which airports do connecting flights from Ontario to Athens pass through?

One-stop flights from Ontario to Athens most commonly connect through: • Atlanta Hartsfield-Jackson (ATL) - 70% of one-stop connections • Dallas/Fort Worth (DFW) - 23% of one-stop connections • Chicago O'Hare Intl (ORD) - 7% of one-stop connections

Can I save money by using flexible dates for flights from Ontario to Athens?

Yes. Flexible dates can save you up to 42% on flights from Ontario to Athens. Sunday is the cheapest departure day at $746 round-trip on average, while Monday is the most expensive at $1,279, a difference of $533. Cheaper weekend fares like these are typical of routes dominated by weekday business travel.

What popular places can I visit in Athens?

Some of the most popular sights in Athens are Acropolis, Syntagma Square and Parthenon. These are among the most viewed places in Athens on KAYAK.

How long is a flight from Ontario to Athens?

There are currently no nonstop flights available from Ontario to Athens. Flights with 1 layover take between 18h 17m and 19h 16m in total, depending on the connection.

Do I need a passport to fly from Ontario to Athens?

Yes, a valid passport is required for this international route. Many destinations require at least six months of validity beyond your travel dates. Check your passport expiry well before booking.

How are flight prices from Ontario to Athens looking right now?

One-way fares from Ontario to Athens are currently lower than usual. Average one-way flight prices are about $407, which is 33% below the typical average for this route.

How much time can I save by choosing a different layover airport from Ontario to Athens?

Flying via Atlanta Hartsfield-Jackson (ATL) gives the shortest average 1-stop total travel time at 18h 17m, compared with 19h 15m via Dallas/Fort Worth (DFW) and 19h 16m via Chicago O'Hare Intl (ORD).

What is the time difference between Ontario and Athens?

Athens is 9 hours ahead of Ontario (Eastern European Time vs Pacific Time). Plan for the time shift when scheduling connections or first-day activities.

What car rental options are available at Athens Eleftherios V. Airport (ATH)?

Athens Eleftherios V. Airport (ATH) hosts 5 major car rental companies, with daily rates averaging $28 for economy cars. Top options include: • Record go • Centauro • Europcar • SURPRICE CAR RENTAL • Alamo

How much should I expect to pay for a Ontario to Athens flight?

Round-trip flights from Ontario to Athens range from $746 to $998, with an average of $796 over the past 12 months. Anything below $746 counts as a good deal.

How much is a round-trip flight from Ontario to Athens?

Round-trip flights from Ontario to Athens typically range from $746 to $998. The lowest price found in the past 5 days was $841, on KLM.

Which airline is the cheapest to fly from Ontario to Athens?

KLM ($841) and United Airlines ($847) are the cheapest airlines to fly round-trip from Ontario to Athens according to KAYAK data over the last 5 days.

What’s the most popular layover airport when flying from Ontario to Athens?

Atlanta Hartsfield-Jackson (ATL) is the most popular layover for the Ontario to Athens route. 70% of KAYAK users who booked 1-stop round-trips over the past 3 months connected via ATL.

What is the cheapest layover airport when flying from Ontario to Athens?

Flights via Atlanta Hartsfield-Jackson (ATL) offer the most affordable fares, with an average round-trip price of $971. Based on KAYAK data over the past 3 months.

When flying from Ontario to Athens which airport offers the shortest layover?

Atlanta Hartsfield-Jackson (ATL) had the shortest average connection time for Ontario to Athens layovers at 10h 02m over the past 3 months.

$376 CHEAP FLIGHTS from Ontario to Athens (ONT - ATH)

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Cheapest round-trip

$841

Typical prices: $746-$998

KLM

Fri 2/23Fri 3/9

ONT - ATH • 2 stops

Cheapest one-way

$376

Typical prices: $482-$719

British Airways

Fri 3/16

ONT - ATH • 2 stops

When to travel

February

Cheapest • 38% price drop

April

Most popular

Good to know

Top layover airports

Atlanta Hartsfield-Jackson (ATL)

Cheapest • Avg $971 (round-trip)

Dallas/Fort Worth (DFW)

Shortest trip • 19h 15m (one-way)

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Flight Deals

Cheap Flights from Ontario to Athens (ONT-ATH)

Discover the best prices for you by selecting your travel dates on KAYAK.

Round-trip

One-way

Last minute

Recent round-trip flight deals from Ontario to Athens

Tue, Feb 23 - Tue, Mar 9

7:00 am - 12:40 pmONT Ontario-ATH Athens Eleftherios V.

19h 40m2 stops Atlanta Hartsfield-Jackson Amsterdam Schiphol

6:10 am - 4:12 pmATH Athens Eleftherios V.-ONT Ontario

20h 02m2 stops Amsterdam Schiphol Salt Lake City

$841KLM

Tue, Mar 2 - Fri, Mar 5

7:00 am - 11:00 amONT Ontario-ATH Athens Eleftherios V.

42h 00m2 stops Chicago O'Hare Intl Montreal Pierre Elliott Trudeau Intl

6:45 am - 8:32 pmATH Athens Eleftherios V.-ONT Ontario

23h 47m2 stops Frankfurt am Main Denver Intl

$847United Airlines

Tue, Mar 2 - Fri, Mar 5

7:00 am - 11:00 amONT Ontario-ATH Athens Eleftherios V.

42h 00m2 stops Chicago O'Hare Intl Montreal Pierre Elliott Trudeau Intl

6:45 am - 8:32 pmATH Athens Eleftherios V.-ONT Ontario

23h 47m2 stops Frankfurt am Main Denver Intl

$851United Airlines

Tue, Mar 2 - Fri, Mar 5

7:00 am - 11:00 amONT Ontario-ATH Athens Eleftherios V.

42h 00m2 stops Chicago O'Hare Intl Montreal Pierre Elliott Trudeau Intl

6:45 am - 8:32 pmATH Athens Eleftherios V.-ONT Ontario

23h 47m2 stops Frankfurt am Main Denver Intl

$852United Airlines

Tue, Mar 2 - Fri, Mar 5

7:00 am - 11:00 amONT Ontario-ATH Athens Eleftherios V.

42h 00m2 stops Chicago O'Hare Intl Montreal Pierre Elliott Trudeau Intl

12:25 pm - 12:42 pmATH Athens Eleftherios V.-ONT Ontario

34h 17m2 stops Newark Denver Intl

$854United Airlines

Tue, Feb 16 - Thu, Feb 25

11:27 am - 4:30 pmONT Ontario-ATH Athens Eleftherios V.

19h 03m2 stops San Francisco Frankfurt am Main

6:45 am - 8:34 pmATH Athens Eleftherios V.-ONT Ontario

23h 49m2 stops Frankfurt am Main San Francisco

$861United Airlines

Mon, Mar 1 - Mon, Mar 15

12:49 pm - 7:00 pmONT Ontario-ATH Athens Eleftherios V.

20h 11m2 stops Dallas/Fort Worth London Heathrow

7:55 am - 11:59 pmATH Athens Eleftherios V.-ONT Ontario

25h 04m2 stops London Heathrow Dallas/Fort Worth

$904British Airways

Tue, Jan 26 - Tue, Feb 9

7:25 am - 4:30 pmONT Ontario-ATH Athens Eleftherios V.

23h 05m2 stops San Francisco Frankfurt am Main

6:45 am - 6:03 pmATH Athens Eleftherios V.-ONT Ontario

21h 18m2 stops Frankfurt am Main San Francisco

$907United Airlines

Mon, Jan 25 - Mon, Feb 8

11:20 am - 4:30 pmONT Ontario-ATH Athens Eleftherios V.

19h 10m2 stops San Francisco Frankfurt am Main

6:55 am - 8:25 pmATH Athens Eleftherios V.-ONT Ontario

23h 30m2 stops Zurich San Francisco

$911United Airlines

Wed, Dec 9 - Fri, Jan 22

6:00 am - 11:00 amONT Ontario-ATH Athens Eleftherios V.

19h 00m2 stops San Francisco Toronto Pearson Intl

7:05 am - 8:25 pmATH Athens Eleftherios V.-ONT Ontario

23h 20m2 stops Zurich San Francisco

$937United Airlines

Recent last minute flight deals from Ontario to Athens

Sat, Oct 31 - Mon, Nov 9

1:35 pm - 10:05 amONT Ontario-ATH Athens Eleftherios V.

35h 30m2 stops San Francisco Newark

2:30 pm - 6:01 pmATH Athens Eleftherios V.-ONT Ontario

37h 31m2 stops Frankfurt am Main San Francisco

$1,125United Airlines

Sun, Nov 1 - Sat, Nov 14

1:29 pm - 1:30 amONT Ontario-ATH Athens Eleftherios V.

26h 01m2 stops Denver Intl Munich Franz Josef Strauss

6:40 am - 9:40 pmATH Athens Eleftherios V.-ONT Ontario

25h 00m2 stops Munich Franz Josef Strauss Houston George Bush Intcntl

$1,138United Airlines

Fri, Oct 30 - Sat, Nov 14

6:00 am - 9:35 amONT Ontario-ATH Athens Eleftherios V.

18h 35m2 stops Salt Lake City New York John F Kennedy Intl

6:10 am - 4:24 pmATH Athens Eleftherios V.-ONT Ontario

20h 14m2 stops Amsterdam Schiphol Salt Lake City

$1,433KLM

Sat, Oct 31 - Mon, Nov 9

10:00 am - 11:05 pmONT Ontario-ATH Athens Eleftherios V.

28h 05m3 stops Las Vegas Harry Reid Intl San Francisco Zurich

6:45 am - 7:30 pmATH Athens Eleftherios V.-ONT Ontario

22h 45m2 stops Frankfurt am Main San Francisco

$1,579Multiple Airlines

Sun, Nov 1 - Sat, Nov 14

8:35 pm - 1:40 pmONT Ontario-ATH Athens Eleftherios V.

31h 05m3 stops Las Vegas Harry Reid Intl Houston George Bush Intcntl Frankfurt am Main

9:55 pm - 11:51 pmATH Athens Eleftherios V.-ONT Ontario

35h 56m3 stops London Gatwick Orlando Denver Intl

$1,608Multiple Airlines

Sun, Nov 1 - Sat, Nov 14

11:15 am - 9:00 pmONT Ontario-ATH Athens Eleftherios V.

23h 45m3 stops Las Vegas Harry Reid Intl Denver Intl Istanbul

9:50 pm - 11:06 pmATH Athens Eleftherios V.-ONT Ontario

35h 16m2 stops Istanbul Seattle/Tacoma Intl

$1,670Multiple Airlines

Mon, Nov 2 - Sun, Nov 15

7:00 am - 3:10 pmONT Ontario-ATH Athens Eleftherios V.

22h 10m2 stops Dallas/Fort Worth Madrid Barajas

7:15 am - 9:32 pmATH Athens Eleftherios V.-ONT Ontario

24h 17m2 stops Madrid Barajas Dallas/Fort Worth

$3,805Iberia

Wed, Nov 4 - Thu, Nov 12

12:42 pm - 7:00 pmONT Ontario-ATH Athens Eleftherios V.

20h 18m2 stops Dallas/Fort Worth London Heathrow

7:55 am - 9:32 pmATH Athens Eleftherios V.-ONT Ontario

23h 37m2 stops London Heathrow Dallas/Fort Worth

$6,431British Airways

Booking Insights

Price, demand and travel trends for Ontario to Athens flights

Use KAYAK data on prices, travel dates, airlines and seasonal trends to compare options and book flights with more confidence.

Prices

Airlines

Layovers

How much is a round-trip flight from Ontario to Athens? This analysis is based on the cheapest round-trip price found on KAYAK in the last 12 months by searching for a flight from Ontario to Athens departing in february.

Find deals

High season	April
Cheapest flight	$376

The most popular month to fly with an average 40% increase in travelers.

One-way flight from Ontario to Athens

When to book flights from Ontario to Athens

Are your dates flexible? Find out the best times to travel from Ontario to Athens based on our flight data from the last year. Discover the cheapest month and even day to fly.

Estimated round-trip price

KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

What cabin classes can I book on flights from Ontario to Athens?
Only Economy Class is available on flights from Ontario to Athens.
How long is a flight from Ontario to Athens?
There are currently no nonstop flights available from Ontario to Athens. Flights with 1 layover take between 18h 17m and 19h 16m in total, depending on the connection.
Do I need a passport to fly from Ontario to Athens?
Yes, a valid passport is required for this international route. Many destinations require at least six months of validity beyond your travel dates. Check your passport expiry well before booking.
How much should I expect to pay for a Ontario to Athens flight?
Round-trip flights from Ontario to Athens range from $746 to $998, with an average of $796 over the past 12 months. Anything below $746 counts as a good deal.
How are flight prices from Ontario to Athens looking right now?
One-way fares from Ontario to Athens are currently lower than usual. Average one-way flight prices are about $407, which is 33% below the typical average for this route.
What car rental options are available at Athens Eleftherios V. Airport (ATH)?
Athens Eleftherios V. Airport (ATH) hosts 5 major car rental companies, with daily rates averaging $28 for economy cars. Top options include:

• Record go
• Centauro
• Europcar
• SURPRICE CAR RENTAL
• Alamo
Which airports can I use when flying from Ontario to Athens?
Flights from Ontario to Athens usually depart from Ontario (ONT) and arrive at Athens Eleftherios V. (ATH).
Which airports do connecting flights from Ontario to Athens pass through?
One-stop flights from Ontario to Athens most commonly connect through:

• Atlanta Hartsfield-Jackson (ATL) - 70% of one-stop connections
• Dallas/Fort Worth (DFW) - 23% of one-stop connections
• Chicago O'Hare Intl (ORD) - 7% of one-stop connections
Can I save money by using flexible dates for flights from Ontario to Athens?
Yes. Flexible dates can save you up to 42% on flights from Ontario to Athens. Sunday is the cheapest departure day at $746 round-trip on average, while Monday is the most expensive at $1,279, a difference of $533.

Cheaper weekend fares like these are typical of routes dominated by weekday business travel.
How much time can I save by choosing a different layover airport from Ontario to Athens?
Flying via Atlanta Hartsfield-Jackson (ATL) gives the shortest average 1-stop total travel time at 18h 17m, compared with 19h 15m via Dallas/Fort Worth (DFW) and 19h 16m via Chicago O'Hare Intl (ORD).
What is the time difference between Ontario and Athens?
Athens is 9 hours ahead of Ontario (Eastern European Time vs Pacific Time). Plan for the time shift when scheduling connections or first-day activities.
What popular places can I visit in Athens?
Some of the most popular sights in Athens are Acropolis, Syntagma Square and Parthenon. These are among the most viewed places in Athens on KAYAK.

If your dates are flexible, aim for a Sunday departure and avoid flying on Monday. On this route, Sunday flights average $746, about $533 less than Monday fares (42% savings) based on the last 12 months.
If you can choose when to travel, plan your Ontario to Athens trip for February. Fares historically average $491 round-trip in that month - typically $751 less than the most expensive month, which is July (based on the last 12 months).

More options for your flight from Ontario to Athens

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ONT - ATH

$376 Find Cheap Flights from Ontario to Athens - Compare and Save

Everything you should know

Cheap Flights from Ontario to Athens (ONT-ATH)

Recent round-trip flight deals from Ontario to Athens

Recent one-way flight deals from Ontario to Athens

Recent last minute flight deals from Ontario to Athens

Price, demand and travel trends for Ontario to Athens flights

How much is a round-trip flight from Ontario to Athens?

Which airline is the cheapest to fly from Ontario to Athens?

What’s the most popular layover airport when flying from Ontario to Athens?

What is the cheapest layover airport when flying from Ontario to Athens?

When flying from Ontario to Athens which airport offers the shortest layover?

Key details for Ontario to Athens flights

High season

Cheapest flight

When to book flights from Ontario to Athens

Your Ontario to Athens flight questions, answered

Your guide to booking Ontario to Athens flights

More options for your flight from Ontario to Athens

Complete your trip to Athens with a hotel stay or car rental

Information on your arrival and departure airports

Cabin class types available on flights from Ontario to Athens

Find direct flights to and from Ontario and Athens

Flights from domestic origins to Athens

Flights to other popular destinations

Find deals for your return flight