What is the cheapest flight from Athens to Ontario?

In the last 3 days, the lowest price for a flight from Athens to Ontario was $622 for a one-way ticket and $1,062 for a round-trip. Visit our flight page for the latest deals!>/a>

Do I need a passport to fly between Athens and Ontario?

A passport is required to fly from Athens to Ontario. Visit our flight page for the latest deals!>/a>

Which aircraft models fly most regularly from Athens to Ontario?

We unfortunately don’t have that data for this specific route.

How does KAYAK find such low prices on flights from Athens to Ontario?

KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Athens to Ontario. Visit our flight page for the latest deals!>/a>

How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Athens to Ontario?

KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Ontario from Athens is likely to change within 7 days, so travelers know whether to wait or book now. Visit our flight page for the latest deals!>/a>

What is the Hacker Fare option on flights from Athens to Ontario?

Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Ontario with an airline and back to Athens with another airline. Booking your flights between Athens and ONT can sometimes prove cheaper using this method. Visit our flight page for the latest deals!>/a>

What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Athens to Ontario?

Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Ontario from Athens up to 3 days before/after your preferred dates. You can then pick the flights that suit you best. Visit our flight page for the latest deals!>/a>

What are the most popular airlines flying to Ontario?

The most popular airline among KAYAK users flying to Ontario is Norse Atlantic Airways, followed by ITA Airways and Turkish Airlines.

$622 CHEAP FLIGHTS from Athens to Ontario (ATH - ONT)

ATH - ONT

KAYAK searches hundreds of travel sites at once for deals on flights to Ontario

...and more

Travelers love KAYAK

41,299,237 searches in the past 7 days on KAYAK

Save 24% or moreCompare multiple travel sites with one search.

Track pricesNot ready to book? Create a price alert for when prices drop.

Bundle and saveSave money when you bundle your flight + hotel.

Filter your dealsChoose cabin class, free Wi-Fi and more.

Cheapest round-trip

$1,062

United Airlines

Mon 6/22Sun 8/16

ATH - ONT • 2 stops

Cheapest one-way

$622

British Airways

Wed 5/20

ATH - ONT • 2 stops

Nonstop flights

Not available

There are currently no direct flights between Athens and Ontario. You'll need at least 2 connections.

Insights

Start a new search

KAYAK searches 100s of sites at once to find you the best travel deals.

We hope you love your trip to Ontario!

Flight Deals

Cheap Flights from Athens to Ontario (ATH-ONT)

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 Athens to Ontario

Mon, Jun 22 - Sun, Aug 16

11:45 am - 12:12 pm

ATH

ONT

34h 27m

2 stops

5:00 am - 10:35 am

ONT

ATH

19h 35m

2 stops

$1,062United Airlines

Sat, Jun 20 - Sun, Jun 28

11:45 am - 12:12 pm

ATH

ONT

34h 27m

2 stops

1:18 pm - 6:45 pm

ONT

ATH

19h 27m

2 stops

$1,065United Airlines

Wed, Jun 17 - Tue, Jun 30

12:35 pm - 10:51 pm

ATH

ONT

20h 16m

1 stop

5:00 am - 11:05 pm

ONT

ATH

32h 05m

2 stops

$1,076United Airlines

Sun, May 24 - Sun, May 31

6:00 am - 5:56 pm

ATH

ONT

21h 56m

2 stops

6:30 am - 10:35 am

ONT

ATH

18h 05m

1 stop

$1,079United Airlines

Tue, Jun 16 - Sat, Jun 27

3:55 pm - 1:28 pm

ATH

ONT

31h 33m

2 stops

1:11 pm - 2:10 am

ONT

ATH

26h 59m

2 stops

$1,087American Airlines

Mon, Jun 15 - Mon, Jun 29

9:45 am - 6:30 pm

ATH

ONT

18h 45m

1 stop

7:05 am - 11:00 am

ONT

ATH

17h 55m

1 stop

$1,105KLM

Thu, Jun 18 - Mon, Jun 29

6:35 am - 10:37 pm

ATH

ONT

26h 02m

2 stops

5:00 am - 11:05 pm

ONT

ATH

32h 05m

2 stops

$1,106United Airlines

Fri, Jun 5 - Sun, Jun 14

9:45 am - 6:36 pm

ATH

ONT

18h 51m

1 stop

7:05 am - 11:00 am

ONT

ATH

17h 55m

1 stop

$1,107KLM

Fri, May 22 - Tue, May 26

12:10 pm - 9:48 pm

ATH

ONT

19h 38m

1 stop

12:07 pm - 5:40 pm

ONT

ATH

19h 33m

2 stops

$1,112Air France

Fri, May 22 - Tue, May 26

9:45 am - 9:48 pm

ATH

ONT

22h 03m

1 stop

10:00 pm - 11:00 am

ONT

ATH

27h 00m

1 stop

$1,116Multiple Airlines

Booking Insights

KAYAK's insights & trends for Athens to Ontario flights

Get data-powered insights and trends into flights from Athens to Ontario to help you find the cheapest flights, the best time to fly and much more.

Which airlines provide the cheapest flights from Athens to Ontario?

In the past 3 days, the cheapest round-trip tickets from Athens to Ontario were found on United Airlines ($1,062) and American Airlines ($1,087).

Find deals

Cheapest flight	$622

Flight from Athens to Ontario

When to book flights from Athens to Ontario

Are your dates flexible? Find out the best times to travel from Athens to Ontario 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 is the cheapest flight from Athens to Ontario?
In the last 3 days, the lowest price for a flight from Athens to Ontario was $622 for a one-way ticket and $1,062 for a round-trip.
Do I need a passport to fly between Athens and Ontario?
A passport is required to fly from Athens to Ontario.
Which aircraft models fly most regularly from Athens to Ontario?
We unfortunately don’t have that data for this specific route.
How does KAYAK find such low prices on flights from Athens to Ontario?
KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Athens to Ontario.
How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Athens to Ontario?
KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Ontario from Athens is likely to change within 7 days, so travelers know whether to wait or book now.
What is the Hacker Fare option on flights from Athens to Ontario?
Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Ontario with an airline and back to Athens with another airline. Booking your flights between Athens and ONT can sometimes prove cheaper using this method.
What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Athens to Ontario?
Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Ontario from Athens up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

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

Airports

Cabin class

Complete your trip

Direct Flights

Flights to other cities

Origins

Other airports

Return flight deals

Information on your arrival and departure airports

Athens (ATH)

Ontario (ONT)

ATH - ONT

$622 Find Cheap Flights from Athens to Ontario

KAYAK searches hundreds of travel sites at once for deals on flights to Ontario

Everything you should know

Cheap Flights from Athens to Ontario (ATH-ONT)

Recent round-trip flight deals from Athens to Ontario

Recent one-way flight deals from Athens to Ontario

Recent last minute flight deals from Athens to Ontario

KAYAK's insights & trends for Athens to Ontario flights

Get data-powered insights and trends into flights from Athens to Ontario to help you find the cheapest flights, the best time to fly and much more.

Which airlines provide the cheapest flights from Athens to Ontario?

In the past 3 days, the cheapest round-trip tickets from Athens to Ontario were found on United Airlines ($1,062) and American Airlines ($1,087).

Good to know

When to book flights from Athens to Ontario

FAQs for booking flights from Athens to Ontario

What is the cheapest flight from Athens to Ontario?

In the last 3 days, the lowest price for a flight from Athens to Ontario was $622 for a one-way ticket and $1,062 for a round-trip.

Do I need a passport to fly between Athens and Ontario?

A passport is required to fly from Athens to Ontario.

Which aircraft models fly most regularly from Athens to Ontario?

We unfortunately don’t have that data for this specific route.

How does KAYAK find such low prices on flights from Athens to Ontario?

KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Athens to Ontario.

How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Athens to Ontario?

KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Ontario from Athens is likely to change within 7 days, so travelers know whether to wait or book now.

What is the Hacker Fare option on flights from Athens to Ontario?

Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Ontario with an airline and back to Athens with another airline. Booking your flights between Athens and ONT can sometimes prove cheaper using this method.

What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Athens to Ontario?

Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Ontario from Athens up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

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

Information on your arrival and departure airports

Cabin class types available on flights from Athens to Ontario

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

Find direct flights to and from Athens and Ontario

Flights to other popular destinations

Flights from domestic origins to Ontario

Choose which airport to fly into in Ontario

Find deals for your return flight