What airlines fly to Athens?

Norse Atlantic Airways, United Airlines and Turkish Airlines are the top three most popular airlines that fly to Athens from Ontario according to our data. Norse Atlantic Airways is the first choice among our users, with 41% of people opting to fly with this airline when traveling to Athens. Keep in mind that there are 19 different airlines that fly to Athens on a routine basis, so you have a few additional options to choose from.

What is the cheapest airline that flies from Ontario to Athens Eleftherios V.?

United Airlines and British Airways are the most popular carriers operating from Ontario to Athens Eleftherios V.

When did momondo last update prices for flights from Ontario Airport to Athens Eleftherios V. Airport?

Prices for flights from Ontario Airport to Athens Eleftherios V. Airport are refreshed on a daily basis.

How many operators does momondo search for flights from Ontario Airport to Athens Eleftherios V. Airport?

As of March 2026, there is 1 operator available to choose from for flights from Ontario Airport to Athens Eleftherios V. Airport.

How old do you have to be to fly from Ontario Airport to Athens Eleftherios V. Airport?

The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Ontario Airport to Athens Eleftherios V. Airport.

What documentation or ID do you need to fly to Athens Eleftherios V. Airport?

The required travel and health documents for your Athens Eleftherios V. Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Athens Eleftherios V. Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

$317 Cheap Flights from Ontario to Athens in 2026

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Find the cheapest flights from Ontario to Athens

Round-trip

One-way

Last minute

Cheap round-trip flights

Enter your travel dates to find the best prices.

6:30 am - 10:35 am

ONT

ATH

18h 05m

1 stop

6:25 am - 9:21 pm

ATH

ONT

24h 56m

2 stops

$709United Airlines

seg, ago 10 - ter, dez 15

5:00 am - 10:10 am

ONT

ATH

19h 10m

2 stops

6:25 am - 9:21 pm

ATH

ONT

24h 56m

2 stops

$712United Airlines

seg, ago 10 - ter, dez 15

7:00 am - 10:35 am

ONT

ATH

17h 35m

1 stop

1:10 pm - 10:35 pm

ATH

ONT

43h 25m

2 stops

$729United Airlines

dom, abr 26 - qua, mai 13

11:05 am - 11:05 pm

ONT

ATH

26h 00m

2 stops

12:10 pm - 10:59 pm

ATH

ONT

44h 49m

2 stops

$731United Airlines

qua, abr 29 - qua, mai 6

5:10 am - 10:35 am

ONT

ATH

19h 25m

2 stops

1:10 pm - 10:35 pm

ATH

ONT

43h 25m

2 stops

$733United Airlines

dom, abr 26 - qui, mai 14

11:05 am - 11:05 pm

ONT

ATH

26h 00m

2 stops

3:25 pm - 10:35 pm

ATH

ONT

41h 10m

2 stops

$736United Airlines

seg, abr 27 - qua, mai 13

10:15 pm - 11:00 am

ONT

ATH

26h 45m

1 stop

9:45 am - 6:33 pm

ATH

ONT

18h 48m

1 stop

$737Delta

ter, abr 21 - qui, abr 30

7:00 am - 10:35 am

ONT

ATH

17h 35m

1 stop

12:35 pm - 10:35 pm

ATH

ONT

20h 00m

1 stop

$744United Airlines

dom, abr 26 - ter, mai 5

12:19 pm - 7:05 pm

ONT

ATH

20h 46m

2 stops

8:00 pm - 9:07 pm

ATH

ONT

35h 07m

2 stops

$747British Airways

seg, abr 20 - qua, mai 6

5:55 pm - 7:50 am

ONT

ATH

27h 55m

2 stops

10:05 am - 11:34 pm

ATH

ONT

23h 29m

2 stops

$748Delta

ter, mai 5 - qui, mai 14

Turkish Airlines flights from Ontario to Athens

Our best Turkish Airlines deals on Ontario to Athens flight tickets

Turkish Airlines

May 16

ONT11:25 pmOntario

35h 05m

2 stops

ATH8:30 pmAthens Eleftherios V.

May 26

ATH3:40 pmAthens Eleftherios V.

39h 05m

2 stops

ONT8:45 pmOntario

$777

Turkish Airlines

Sep 14

ONT10:56 pmOntario

23h 59m

2 stops

ATH8:55 amAthens Eleftherios V.

Sep 28

ATH10:00 pmAthens Eleftherios V.

33h 29m

2 stops

ONT9:29 pmOntario

$807

United Airlines flights from Ontario to Athens

Our best United Airlines deals on Ontario to Athens flight tickets

United Airlines

Aug 10

ONT6:30 amOntario

18h 05m

1 stop

ATH10:35 amAthens Eleftherios V.

Dec 15

ATH6:25 amAthens Eleftherios V.

24h 56m

2 stops

ONT9:21 pmOntario

$709

United Airlines

Aug 10

ONT5:00 amOntario

19h 10m

2 stops

ATH10:10 amAthens Eleftherios V.

Dec 15

ATH6:25 amAthens Eleftherios V.

24h 56m

2 stops

ONT9:21 pmOntario

$712

United Airlines

Apr 26

ONT7:00 amOntario

17h 35m

1 stop

ATH10:35 amAthens Eleftherios V.

May 12

ATH1:10 pmAthens Eleftherios V.

43h 25m

2 stops

ONT10:35 pmOntario

$729

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

OntarioAthens

ONT - ATH

ONTATH

Ontario

seg 8/10

6:30 am-10:35 am

1 stop18h 05m

Athens Eleftherios V.

ter 12/15

6:25 am-9:21 pm

2 stops24h 56m

$709

OntarioAthens

ONT - ATH

ONTATH

Ontario

seg 8/10

5:00 am-10:10 am

2 stops19h 10m

Athens Eleftherios V.

ter 12/15

6:25 am-9:21 pm

2 stops24h 56m

$712

OntarioAthens

ONT - ATH

ONTATH

Ontario

dom 4/26

7:00 am-10:35 am

1 stop17h 35m

Athens Eleftherios V.

qua 5/13

1:10 pm-10:35 pm

2 stops43h 25m

$729

OntarioAthens

ONT - ATH

ONTATH

Ontario

qua 4/29

11:05 am-11:05 pm

2 stops26h 00m

Athens Eleftherios V.

qua 5/6

12:10 pm-10:59 pm

2 stops44h 49m

$731

OntarioAthens

ONT - ATH

ONTATH

Ontario

dom 4/26

5:10 am-10:35 am

2 stops19h 25m

Athens Eleftherios V.

qui 5/14

1:10 pm-10:35 pm

2 stops43h 25m

$733

OntarioAthens

ONT - ATH

ONTATH

Ontario

seg 4/27

11:05 am-11:05 pm

2 stops26h 00m

Athens Eleftherios V.

qua 5/13

3:25 pm-10:35 pm

2 stops41h 10m

$736

OntarioAthens

ONT - ATH

ONTATH

Ontario

ter 4/21

10:15 pm-11:00 am

1 stop26h 45m

Athens Eleftherios V.

qui 4/30

9:45 am-6:33 pm

1 stop18h 48m

$737

Quickest round-trip

OntarioAthens

ONT - ATH

ONTATH

Ontario

dom 4/26

7:00 am-10:35 am

1 stop17h 35m

Athens Eleftherios V.

ter 5/5

12:35 pm-10:35 pm

1 stop20h 00m

$744

OntarioAthens

ONT - ATH

ONTATH

Ontario

seg 4/20

12:19 pm-7:05 pm

2 stops20h 46m

Athens Eleftherios V.

qua 5/6

8:00 pm-9:07 pm

2 stops35h 07m

$747

OntarioAthens

ONT - ATH

ONTATH

Ontario

ter 5/5

5:55 pm-7:50 am

2 stops27h 55m

Athens Eleftherios V.

qui 5/14

10:05 am-11:34 pm

2 stops23h 29m

$748

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from Ontario to Athens

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

Prices

Airlines

What is the cheapest day to depart on your flight to Athens?

The cheapest day to depart on your flight to Athens is on a Thursday when prices can be found for as low as $660. This is often the case because there is less demand to fly during this day of the week. If your travel schedule is flexible, try to avoid departing on a Sunday because tickets tend to average around $747. These prices are subject to change though, so be sure to set up a Price Alert for flights to Athens.

What is the cheapest time of day to depart on your flight to Athens?

The cheapest time of day to fly to Athens is in the evening when flights can be purchased for as low as $703. Flights to Athens are more costly at noon, with an average ticket price of $838. Departure times at noon fall within the peak daily travel times, which is why tickets can be more expensive.

Can stopping save me money on Ontario to Athens flights?

You could potentially save up to 52% on your flight if you consider stops on a Ontario to Athens flight.

When to book flights from Ontario to Athens

Are you open to changing your travel dates? Check out the ideal times to fly from Ontario to Athens according to our flight data. Find out which month and days have the cheapest flights.

Estimated round-trip price

Cheap Ontario to Athens (ONT to ATH) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Ontario to Athens

Fastest flight time	16h 15m
Direct flights	None

The fastest flight from Ontario to Athens takes 16h 15m

There are no direct flights from Ontario to Athens. There are no popular flight routes from Ontario to Athens.

Search flight deals

How far is Ontario to Athens Eleftherios V. by plane?
The distance between Ontario and Athens Eleftherios V. is about 6871.5 mi. A reasonable flight in good conditions will take 16h 15m.
When did momondo last update prices for flights from Ontario Airport to Athens Eleftherios V. Airport?
Prices for flights from Ontario Airport to Athens Eleftherios V. Airport are refreshed on a daily basis.
How many operators does momondo search for flights from Ontario Airport to Athens Eleftherios V. Airport?
As of March 2026, there is 1 operator available to choose from for flights from Ontario Airport to Athens Eleftherios V. Airport.
How old do you have to be to fly from Ontario Airport to Athens Eleftherios V. Airport?
The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Ontario Airport to Athens Eleftherios V. Airport.
What documentation or ID do you need to fly to Athens Eleftherios V. Airport?
The required travel and health documents for your Athens Eleftherios V. Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Athens Eleftherios V. Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.
What is the most popular airline from Ontario to Athens?
Based on momondo bookings for this flight route, the most popular airline on flight routes from Ontario to Athens is United Airlines (100% of total bookings).

Best airlines flying from Ontario to Athens

Compare and see reviews for airlines that fly from Ontario to Athens with momondo

Airline	Rating	Free Cancellation	Price
United Airlines	PriceFrom $588	Free Cancellation	Rating 7.4 9,435 reviews		Search United Airlines flights

Piraeus

Glyfada

Marathon

Hydra

Skala

Loutraki

Aegina

Tolo

Corinth

Agia Marina

Chalcis

Porto Cheli

Galaxidi

Why use momondo?

Why should I use momondo to find a flight deal from Ontario to Athens?

It is quick and easy to find Ontario to Athens flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to Athens that suits you.

Can I find flights from Ontario to Athens with flexible booking policies on momondo?

Flights from Ontario to Athens with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

How can momondo help me find flights from Ontario to Athens?

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to Athens from Ontario.

I’m not ready to book a flight from Ontario to Athens right now. Can momondo alert me if prices change?

Price alerts on flights to Athens from Ontario are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.