What is the cheapest airline that flies from Ontario to Greece?

KLM, United Airlines, and Delta are the most popular carriers operating from Ontario to Greece

What airlines fly to Greece?

Turkish Airlines, Norse Atlantic Airways and United Airlines are the top three most popular airlines that fly to Greece from Ontario according to our data. Turkish Airlines is the first choice among our users, with 27% of people opting to fly with this airline when traveling to Greece. Keep in mind that there are 21 different airlines that fly to Greece on a routine basis, so you have a few additional options to choose from.

When did momondo last update prices for flights from Ontario Airport to Greece?

Prices for flights from Ontario Airport to Greece were last updated today.

How old do you have to be to fly from Ontario Airport to Greece?

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 Greece.

What documentation or ID do you need to fly to Greece?

The necessary travel and health documents for your Greece trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

$368 Cheap Flights from Ontario to Greece in 2026

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Find the cheapest flights from Ontario to Greece

Round-trip

One-way

Last minute

Cheap round-trip flights

Enter your travel dates to find the best prices.

1:56 pm - 11:05 pm

ONT

ATH

23h 09m

2 stops

12:10 pm - 8:16 pm

ATH

ONT

42h 06m

2 stops

$802United Airlines

mar., sep. 15 - mié., sep. 23

5:00 am - 6:40 pm

ONT

ATH

27h 40m

2 stops

1:10 pm - 10:26 pm

ATH

ONT

43h 16m

2 stops

$806United Airlines

lun., sep. 14 - mié., sep. 23

7:05 am - 11:00 am

ONT

ATH

17h 55m

1 stop

9:45 am - 6:18 pm

ATH

ONT

18h 33m

1 stop

$814KLM

dom., sep. 27 - vie., oct. 23

7:00 am - 10:35 am

ONT

ATH

17h 35m

1 stop

6:45 am - 9:58 pm

ATH

ONT

25h 13m

2 stops

$818United Airlines

mié., oct. 7 - vie., oct. 16

7:05 am - 11:00 am

ONT

ATH

17h 55m

1 stop

6:00 am - 4:33 pm

ATH

ONT

20h 33m

2 stops

$819Delta

dom., sep. 27 - mié., sep. 30

9:45 am - 11:00 pm

ONT

ATH

27h 15m

2 stops

6:00 am - 10:40 pm

ATH

ONT

26h 40m

2 stops

$823Delta

lun., sep. 14 - mié., sep. 23

11:50 pm - 8:45 am

ONT

SKG

22h 55m

2 stops

9:15 pm - 8:13 pm

SKG

ONT

56h 58m

2 stops

$1,083Turkish Airlines

mar., ago. 25 - mar., sep. 22

11:50 pm - 8:25 pm

ONT

SKG

34h 35m

2 stops

9:15 pm - 8:13 pm

SKG

ONT

32h 58m

2 stops

$1,163Turkish Airlines

dom., sep. 6 - mié., sep. 30

10:54 am - 12:01 am

ONT

SKG

27h 07m

2 stops

8:10 am - 10:35 pm

SKG

ONT

24h 25m

2 stops

$1,340Multiple Airlines

jue., ago. 6 - mié., ago. 19

7:00 am - 12:01 am

ONT

SKG

31h 01m

2 stops

8:10 am - 11:51 pm

SKG

ONT

25h 41m

2 stops

$1,457Multiple Airlines

jue., jun. 18 - sáb., jun. 27

Delta flights from Ontario to Greece

Our best Delta deals on Ontario to Greece flight tickets

Delta

Sep 27

ONT7:05 amOntario

17h 55m

1 stop

ATH11:00 amAthens Eleftherios V.

Sep 30

ATH6:00 amAthens Eleftherios V.

20h 33m

2 stops

ONT4:33 pmOntario

$819

Delta

Sep 14

ONT9:45 amOntario

27h 15m

2 stops

ATH11:00 pmAthens Eleftherios V.

Sep 23

ATH6:00 amAthens Eleftherios V.

26h 40m

2 stops

ONT10:40 pmOntario

$823

Delta

Nov 22

ONT10:59 pmOntario

24h 36m

2 stops

ATH9:35 amAthens Eleftherios V.

Nov 26

ATH11:45 amAthens Eleftherios V.

33h 42m

2 stops

ONT11:27 amOntario

$830

United Airlines flights from Ontario to Greece

Our best United Airlines deals on Ontario to Greece flight tickets

United Airlines

Sep 15

ONT1:56 pmOntario

23h 09m

2 stops

ATH11:05 pmAthens Eleftherios V.

Sep 23

ATH12:10 pmAthens Eleftherios V.

42h 06m

2 stops

ONT8:16 pmOntario

$802

United Airlines

Sep 14

ONT5:00 amOntario

27h 40m

2 stops

ATH6:40 pmAthens Eleftherios V.

Sep 23

ATH1:10 pmAthens Eleftherios V.

43h 16m

2 stops

ONT10:26 pmOntario

$806

United Airlines

Oct 7

ONT7:00 amOntario

17h 35m

1 stop

ATH10:35 amAthens Eleftherios V.

Oct 16

ATH6:45 amAthens Eleftherios V.

25h 13m

2 stops

ONT9:58 pmOntario

$818

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

OntarioAthens

ONT - ATH

ONTATH

Ontario

mar. 9/15

1:56 pm-11:05 pm

2 stops23h 09m

Athens Eleftherios V.

mié. 9/23

12:10 pm-8:16 pm

2 stops42h 06m

$802

OntarioAthens

ONT - ATH

ONTATH

Ontario

lun. 9/14

5:00 am-6:40 pm

2 stops27h 40m

Athens Eleftherios V.

mié. 9/23

1:10 pm-10:26 pm

2 stops43h 16m

$806

Quickest round-trip

OntarioAthens

ONT - ATH

ONTATH

Ontario

dom. 9/27

7:05 am-11:00 am

1 stop17h 55m

Athens Eleftherios V.

vie. 10/23

9:45 am-6:18 pm

1 stop18h 33m

$814

OntarioAthens

ONT - ATH

ONTATH

Ontario

mié. 10/7

7:00 am-10:35 am

1 stop17h 35m

Athens Eleftherios V.

vie. 10/16

6:45 am-9:58 pm

2 stops25h 13m

$818

OntarioAthens

ONT - ATH

ONTATH

Ontario

dom. 9/27

7:05 am-11:00 am

1 stop17h 55m

Athens Eleftherios V.

mié. 9/30

6:00 am-4:33 pm

2 stops20h 33m

$819

OntarioAthens

ONT - ATH

ONTATH

Ontario

lun. 9/14

9:45 am-11:00 pm

2 stops27h 15m

Athens Eleftherios V.

mié. 9/23

6:00 am-10:40 pm

2 stops26h 40m

$823

OntarioThessaloniki

ONT - SKG

ONTSKG

Ontario

mar. 8/25

11:50 pm-8:45 am

2 stops22h 55m

Thessaloniki Makedonia

mar. 9/22

9:15 pm-8:13 pm

2 stops56h 58m

$1,083

OntarioThessaloniki

ONT - SKG

ONTSKG

Ontario

dom. 9/6

11:50 pm-8:25 pm

2 stops34h 35m

Thessaloniki Makedonia

mié. 9/30

9:15 pm-8:13 pm

2 stops32h 58m

$1,163

OntarioThessaloniki

ONT - SKG

ONTSKG

Ontario

jue. 8/6

10:54 am-12:01 am

2 stops27h 07m

Thessaloniki Makedonia

mié. 8/19

8:10 am-10:35 pm

2 stops24h 25m

$1,340

OntarioThessaloniki

ONT - SKG

ONTSKG

Ontario

jue. 6/18

7:00 am-12:01 am

2 stops31h 01m

Thessaloniki Makedonia

sáb. 6/27

8:10 am-11:51 pm

2 stops25h 41m

$1,457

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 Greece

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 month to fly to Greece?

In general, December is the cheapest month to fly from Ontario to Greece. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $0. If you are unable to visit Greece during the month of December, then departing from Ontario during the month January is also very affordable. Most momondo users find prices during this month for around $0.

Can stopping save me money on Ontario to Greece flights?

You could potentially save up to 39% on your flight if you consider stops on a Ontario to Greece flight.

Cheap Ontario to Greece flight deals and tips

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

Fastest flight time	16h 10m
Direct flights	None

The fastest flight from Ontario to Greece takes 16h 10m

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

Search flight deals

Frequently asked questions about flying from Ontario to Greece

When did momondo last update prices for flights from Ontario Airport to Greece?
Prices for flights from Ontario Airport to Greece were last updated today.
How old do you have to be to fly from Ontario Airport to Greece?
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 Greece.
What documentation or ID do you need to fly to Greece?
The necessary travel and health documents for your Greece trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

Why use momondo?

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

Finding the right flight to Greece from Ontario is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to Greece quick and easy, saving you time and money.

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

Yes. All flights to Greece from Ontario on momondo can be compared and filtered by various policies on offer, including flexible booking.

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

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 Greece from Ontario.

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

Yes. momondo can track prices for Ontario to Greece flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.