What airlines fly to Ontario?

Lufthansa, Turkish Airlines and British Airways are the top three most popular airlines that fly to Ontario from Athens according to our data. Lufthansa is the first choice among our users, with 39% of people opting to fly with this airline when traveling to Ontario. Keep in mind that there are 6 different airlines that fly to Ontario on a routine basis, so you have a few additional options to choose from.

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

Turkish Airlines, Qatar Airways, and KLM are the most popular carriers operating from Athens Eleftherios V. to Ontario

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

Prices for flights from Athens Eleftherios V. Airport to Ontario Airport were last updated today.

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

Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Athens Eleftherios V. Airport to Ontario Airport.

What documentation or ID do you need to fly to Ontario Airport?

The travel and health documents you'll need for your trip to Ontario Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Ontario Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

$692 Cheap Flights from Athens to Ontario in 2026/27

Find the cheapest flights from Athens to Los Angeles

Round-trip

One-way

Last minute

Cheap round-trip flights

Enter your travel dates to find the best prices.

12:45 pm - 10:59 pmATH Athens Eleftherios V.-ONT Ontario

20h 14m1 stop Charlotte Douglas

4:51 pm - 10:00 pmONT Ontario-ATH Athens Eleftherios V.

19h 09m2 stops Phoenix Sky Harbor Intl London Heathrow

$1,040British Airways

Thu, Oct 22 - Fri, Nov 6

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

20h 02m2 stops Amsterdam Schiphol Salt Lake City

12:00 pm - 4:30 pmONT Ontario-ATH Athens Eleftherios V.

18h 30m2 stops Atlanta Hartsfield-Jackson Amsterdam Schiphol

$1,041KLM

Mon, Feb 8 - Mon, Feb 22

7:55 am - 9:50 amATH Athens Eleftherios V.-ONT Ontario

35h 55m2 stops London Heathrow Dallas/Fort Worth

2:17 pm - 11:20 pmONT Ontario-ATH Athens Eleftherios V.

23h 03m2 stops Dallas/Fort Worth London Heathrow

$1,049American Airlines

Thu, Feb 4 - Mon, Feb 8

7:55 am - 9:50 amATH Athens Eleftherios V.-ONT Ontario

35h 55m2 stops London Heathrow Dallas/Fort Worth

2:17 pm - 11:20 pmONT Ontario-ATH Athens Eleftherios V.

23h 03m2 stops Dallas/Fort Worth London Heathrow

$1,051American Airlines

Thu, Feb 4 - Mon, Feb 8

7:55 am - 9:50 amATH Athens Eleftherios V.-ONT Ontario

35h 55m2 stops London Heathrow Dallas/Fort Worth

2:17 pm - 11:20 pmONT Ontario-ATH Athens Eleftherios V.

23h 03m2 stops Dallas/Fort Worth London Heathrow

$1,052American Airlines

Thu, Feb 4 - Mon, Feb 8

7:55 am - 11:19 pmATH Athens Eleftherios V.-ONT Ontario

25h 24m2 stops London Heathrow Chicago O'Hare Intl

12:44 pm - 11:20 pmONT Ontario-ATH Athens Eleftherios V.

24h 36m2 stops Dallas/Fort Worth London Heathrow

$1,055American Airlines

Thu, Feb 4 - Mon, Feb 8

6:00 am - 10:40 pmATH Athens Eleftherios V.-ONT Ontario

26h 40m2 stops Amsterdam Schiphol Seattle/Tacoma Intl

12:19 pm - 11:00 pmONT Ontario-ATH Athens Eleftherios V.

24h 41m2 stops Atlanta Hartsfield-Jackson Paris Charles de Gaulle

$1,060Delta

Thu, Oct 1 - Mon, Oct 5

6:00 am - 6:07 pmATH Athens Eleftherios V.-ONT Ontario

22h 07m2 stops Amsterdam Schiphol Atlanta Hartsfield-Jackson

10:00 pm - 11:00 amONT Ontario-ATH Athens Eleftherios V.

27h 00m1 stop Atlanta Hartsfield-Jackson

$1,064Delta

Thu, Oct 1 - Mon, Oct 5

7:05 am - 8:26 pmATH Athens Eleftherios V.-ONT Ontario

23h 21m2 stops Zurich San Francisco

1:33 pm - 9:20 pmONT Ontario-ATH Athens Eleftherios V.

21h 47m2 stops San Francisco Frankfurt am Main

$1,076United Airlines

Sat, Feb 6 - Wed, Feb 24

7:05 am - 8:20 pmATH Athens Eleftherios V.-ONT Ontario

23h 15m3 stops Zurich Newark Denver Intl

4:03 pm - 9:20 pmONT Ontario-ATH Athens Eleftherios V.

19h 17m2 stops San Francisco Frankfurt am Main

$1,076United Airlines

Sat, Feb 6 - Wed, Feb 24

Save money when you book flights with momondo

Big names and deals

Search 100s of travel sites to compare prices.

Filter for what you want

Free Wi-Fi? Stopover? Instantly customize your results.

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Not ready to book? to track prices.

Search flight deals

United Airlines flights from Athens to Ontario

Our best United Airlines deals on Athens to Ontario flight tickets

United Airlines

Feb 6

ATH7:05 amAthens Eleftherios V.

23h 21m

2 stops

ONT8:26 pmOntario

Feb 24

ONT1:33 pmOntario

21h 47m

2 stops

ATH9:20 pmAthens Eleftherios V.

$1,076

United Airlines

Oct 3

ATH10:25 amAthens Eleftherios V.

22h 24m

2 stops

ONT10:49 pmOntario

Oct 11

ONT7:00 amOntario

17h 35m

1 stop

ATH10:35 amAthens Eleftherios V.

$1,078

United Airlines

Sep 25

ATH12:55 pmAthens Eleftherios V.

19h 54m

1 stop

ONT10:49 pmOntario

Oct 15

ONT7:00 amOntario

18h 00m

1 stop

ATH11:00 amAthens Eleftherios V.

$1,159

Qatar Airways flights from Athens to Ontario

Our best Qatar Airways deals on Athens to Ontario flight tickets

Qatar Airways

Sep 24

ATH8:00 pmAthens Eleftherios V.

33h 03m

2 stops

ONT7:03 pmOntario

Oct 7

ONT11:13 amOntario

33h 47m

2 stops

ATH7:00 amAthens Eleftherios V.

$1,318

Qatar Airways

Sep 24

ATH8:00 pmAthens Eleftherios V.

33h 03m

2 stops

ONT7:03 pmOntario

Oct 7

ONT11:13 amOntario

33h 47m

2 stops

ATH7:00 amAthens Eleftherios V.

$1,324

Qatar Airways

Oct 23

ATH8:00 pmAthens Eleftherios V.

32h 00m

2 stops

ONT6:00 pmOntario

Oct 31

ONT11:13 amOntario

38h 57m

2 stops

ATH11:10 amAthens Eleftherios V.

$1,347

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

AthensOntario

ATH Athens Eleftherios V. - ONT Ontario

ATHONT

Athens Eleftherios V.

Thu 10/22

12:45 pm-10:59 pm

1 stop20h 14m

Ontario

Fri 11/6

4:51 pm-10:00 pm

2 stops19h 09m

$1,040

Quickest round-trip

AthensOntario

ATH Athens Eleftherios V. - ONT Ontario

ATHONT

Athens Eleftherios V.

Mon 2/8

6:10 am-4:12 pm

2 stops20h 02m

Ontario

Mon 2/22

12:00 pm-4:30 pm

2 stops18h 30m

$1,041

AthensOntario

ATH Athens Eleftherios V. - ONT Ontario

ATHONT

Athens Eleftherios V.

Thu 2/4

7:55 am-9:50 am

2 stops35h 55m

Ontario

Mon 2/8

2:17 pm-11:20 pm

2 stops23h 03m

$1,049

AthensOntario

ATH Athens Eleftherios V. - ONT Ontario

ATHONT

Athens Eleftherios V.

Thu 2/4

7:55 am-9:50 am

2 stops35h 55m

Ontario

Mon 2/8

2:17 pm-11:20 pm

2 stops23h 03m

$1,051

AthensOntario

ATH Athens Eleftherios V. - ONT Ontario

ATHONT

Athens Eleftherios V.

Thu 2/4

7:55 am-9:50 am

2 stops35h 55m

Ontario

Mon 2/8

2:17 pm-11:20 pm

2 stops23h 03m

$1,052

AthensOntario

ATH Athens Eleftherios V. - ONT Ontario

ATHONT

Athens Eleftherios V.

Thu 2/4

7:55 am-11:19 pm

2 stops25h 24m

Ontario

Mon 2/8

12:44 pm-11:20 pm

2 stops24h 36m

$1,055

AthensOntario

ATH Athens Eleftherios V. - ONT Ontario

ATHONT

Athens Eleftherios V.

Thu 10/1

6:00 am-10:40 pm

2 stops26h 40m

Ontario

Mon 10/5

12:19 pm-11:00 pm

2 stops24h 41m

$1,060

AthensOntario

ATH Athens Eleftherios V. - ONT Ontario

ATHONT

Athens Eleftherios V.

Thu 10/1

6:00 am-6:07 pm

2 stops22h 07m

Ontario

Mon 10/5

10:00 pm-11:00 am

1 stop27h 00m

$1,064

AthensOntario

ATH Athens Eleftherios V. - ONT Ontario

ATHONT

Athens Eleftherios V.

Sat 2/6

7:05 am-8:26 pm

2 stops23h 21m

Ontario

Wed 2/24

1:33 pm-9:20 pm

2 stops21h 47m

$1,076

AthensOntario

ATH Athens Eleftherios V. - ONT Ontario

ATHONT

Athens Eleftherios V.

Sat 2/6

7:05 am-8:20 pm

3 stops23h 15m

Ontario

Wed 2/24

4:03 pm-9:20 pm

2 stops19h 17m

$1,076

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 Athens to Ontario

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

Can stopping save me money on Athens to Ontario flights?

You could potentially save up to 6% on your flight if you consider stops on a Athens to Ontario flight.

When to book flights from Athens to Ontario

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

Estimated round-trip price

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

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

Best Price Found	$692
Fastest flight time	19h 54m
Direct flights	None

The best one-way flight to Ontario from Athens in the past 72 hours is $692. The best round-trip flight deal from Athens to Ontario found on momondo in the last 72 hours is $1,040.

The fastest flight from Athens to Ontario takes 19h 54m

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

Search flight deals

Frequently asked questions about flying from Athens to Ontario

How far is Athens Eleftherios V. to Ontario by plane?
A flight from Athens Eleftherios V. to Ontario will travel around 6871.5 mi. Flights usually cover this in 19h 54m, depending on flying conditions and air traffic around both airports.
When did momondo last update prices for flights from Athens Eleftherios V. Airport to Ontario Airport?
Prices for flights from Athens Eleftherios V. Airport to Ontario Airport were last updated today.
How old do you have to be to fly from Athens Eleftherios V. Airport to Ontario Airport?
Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Athens Eleftherios V. Airport to Ontario Airport.
What documentation or ID do you need to fly to Ontario Airport?
The travel and health documents you'll need for your trip to Ontario Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Ontario Airport. It is always advisable to seek 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 Athens to Ontario?

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from Athens to Ontario for you.

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

Yes. momondo allows you to filter the results for Athens to Ontario flights to just show those with flexible booking policies.

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

Once you have performed a search for Athens to Ontario flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

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

If you are not ready to book a flight from Athens to Ontario now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Ontario and let you know when they change.

An easier way to manage your Ontario trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

Start using Trips

Find my bookings

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

1 adult

Sat 10/17

Sat 10/24

Email me momondo's favorite deals

By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to the United States

Nearby airports

Airlines

Cabin classes

Other United States destinations

Other flights from Athens

Complete your trip

Feeling lucky

Cheap flights from Athens to Los Angeles from $692

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Athens to Los Angeles departing on 12/26. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

Find the cheapest flights from Athens to Los Angeles

Cheap round-trip flights

Cheap one-way flights

Cheap last minute flights

Big names and deals

Big names and deals

Filter for what you want

Filter for what you want

Trusted and free

Trusted and free

Price Alerts

Price Alerts

United Airlines flights from Athens to Ontario

Our best United Airlines deals on Athens to Ontario flight tickets

Qatar Airways flights from Athens to Ontario

Our best Qatar Airways deals on Athens to Ontario flight tickets

momondo Fare Finder

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

See travel insights to Los Angeles from

How to get the cheapest flight ticket from Athens to Ontario

Can stopping save me money on Athens to Ontario flights?

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

What airlines fly to Ontario?

When to book flights from Athens to Ontario

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

Best Price Found

Fastest flight time

Direct flights

Frequently asked questions about flying from Athens to Ontario

Why use momondo?

An easier way to manage your Ontario trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

Find better results for your trip to the United States

Airports servicing California

Fly your favorite airline to Los Angeles

Airlines are sorted and displayed according to clicks in the past 7 days on momondo

Cabin classes currently available on flights to Los Angeles

List of cabin classes available on flights landing in Los Angeles. Availability may vary depending on flight origin and airline.

Popular cities in the United States

Popular flights according to clicks in the last 7 days on momondo

Fly to other destinations from Athens

According to popular flight searches on momondo this year

Complete your trip to Los Angeles

Explore popular destinations other users love

According to popular flight searches on momondo this year