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Cheap flights from Athens to Los Angeles from $643

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 7/28. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
1 adult, Economy, 0 bags

Find the cheapest flights from Athens to Los Angeles

Cheap round-trip flights

Enter your travel dates to find the best prices.
Iberia Logo
2:05 pm - 10:32 pm
ATH
-
ONT
18h 27m
1 stop
Iberia Logo
7:00 am - 11:45 am
ONT
-
ATH
18h 45m
1 stop
$991Iberia
Thu, Jul 9 - Sat, Jul 25
British Airways Logo
2:05 pm - 10:32 pm
ATH
-
ONT
18h 27m
1 stop
British Airways Logo
11:59 pm - 11:45 am
ONT
-
ATH
25h 46m
1 stop
$993British Airways
Thu, Jul 9 - Sat, Jul 25
British Airways Logo
2:05 pm - 11:59 pm
ATH
-
ONT
19h 54m
1 stop
British Airways Logo
5:34 am - 11:45 am
ONT
-
ATH
20h 11m
1 stop
$1,009British Airways
Thu, Jul 9 - Thu, Jul 16
Multiple Airlines Logo
6:00 am - 5:21 pm
ATH
-
ONT
21h 21m
2 stops
Multiple Airlines Logo
11:48 am - 5:40 pm
ONT
-
ATH
19h 52m
2 stops
$1,013Multiple Airlines
Thu, Jul 9 - Wed, Jul 22
Multiple Airlines Logo
9:45 am - 9:50 pm
ATH
-
ONT
22h 05m
1 stop
Multiple Airlines Logo
11:48 am - 5:40 pm
ONT
-
ATH
19h 52m
2 stops
$1,016Multiple Airlines
Thu, Jul 9 - Wed, Jul 22
KLM Logo
6:00 am - 5:21 pm
ATH
-
ONT
21h 21m
2 stops
KLM Logo
12:00 pm - 10:00 am
ONT
-
ATH
36h 00m
1 stop
$1,017KLM
Thu, Jul 9 - Sat, Jul 25
KLM Logo
6:00 am - 5:21 pm
ATH
-
ONT
21h 21m
2 stops
KLM Logo
12:00 pm - 10:00 am
ONT
-
ATH
36h 00m
1 stop
$1,018KLM
Thu, Jul 9 - Sat, Jul 25
KLM Logo
6:00 am - 5:21 pm
ATH
-
ONT
21h 21m
2 stops
KLM Logo
7:05 am - 12:50 pm
ONT
-
ATH
19h 45m
2 stops
$1,019KLM
Thu, Jul 9 - Sat, Jul 25
KLM Logo
6:00 am - 5:21 pm
ATH
-
ONT
21h 21m
2 stops
KLM Logo
7:05 am - 12:50 pm
ONT
-
ATH
19h 45m
2 stops
$1,021KLM
Thu, Jul 9 - Sat, Jul 25
Multiple Airlines Logo
6:35 am - 4:30 pm
ATH
-
ONT
19h 55m
2 stops
Multiple Airlines Logo
12:00 pm - 10:00 am
ONT
-
ATH
36h 00m
1 stop
$1,025Multiple Airlines
Thu, Jul 9 - Sat, Jul 25

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British Airways flights from Athens to Ontario

Our best British Airways deals on Athens to Ontario flight tickets
British Airways
Jun 22
ATH12:00 pmAthens Eleftherios V.
20h 36m
1 stop
ONT10:36 pmOntario
Jul 7
ONT7:00 amOntario
18h 45m
1 stop
ATH11:45 amAthens Eleftherios V.
$990
British Airways
Jun 18
ATH12:00 pmAthens Eleftherios V.
20h 36m
1 stop
ONT10:36 pmOntario
Jul 1
ONT5:45 amOntario
20h 00m
1 stop
ATH11:45 amAthens Eleftherios V.
$991
British Airways
Jul 9
ATH2:05 pmAthens Eleftherios V.
18h 27m
1 stop
ONT10:32 pmOntario
Jul 25
ONT11:59 pmOntario
25h 46m
1 stop
ATH11:45 amAthens Eleftherios V.
$993

KLM flights from Athens to Ontario

Our best KLM deals on Athens to Ontario flight tickets
KLM
Jul 9
ATH6:00 amAthens Eleftherios V.
21h 21m
2 stops
ONT5:21 pmOntario
Jul 25
ONT12:00 pmOntario
36h 00m
1 stop
ATH10:00 amAthens Eleftherios V.
$1,017
KLM
Jul 9
ATH6:00 amAthens Eleftherios V.
21h 21m
2 stops
ONT5:21 pmOntario
Jul 25
ONT12:00 pmOntario
36h 00m
1 stop
ATH10:00 amAthens Eleftherios V.
$1,018
KLM
Jul 9
ATH6:00 amAthens Eleftherios V.
21h 21m
2 stops
ONT5:21 pmOntario
Jul 25
ONT7:05 amOntario
19h 45m
2 stops
ATH12:50 pmAthens Eleftherios V.
$1,019

momondo Fare Finder

 
Customize your flight search to find flights from Athens to Ontario that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 832,500 searches. Data last updated June 15, 2026.
Use the filters below to find and compare flights from Athens to Ontario that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip
Quickest round-trip

AthensOntario

ATH - ONT

ATHONT

Athens Eleftherios V.

Thu 7/9

2:05 pm-10:32 pm

1 stop18h 27m

Ontario

Sat 7/25

7:00 am-11:45 am

1 stop18h 45m

$991

AthensOntario

ATH - ONT

ATHONT

Athens Eleftherios V.

Thu 7/9

2:05 pm-10:32 pm

1 stop18h 27m

Ontario

Sat 7/25

11:59 pm-11:45 am

1 stop25h 46m

$993

AthensOntario

ATH - ONT

ATHONT

Athens Eleftherios V.

Thu 7/9

2:05 pm-11:59 pm

1 stop19h 54m

Ontario

Thu 7/16

5:34 am-11:45 am

1 stop20h 11m

$1,009

AthensOntario

ATH - ONT

ATHONT

Athens Eleftherios V.

Thu 7/9

6:00 am-5:21 pm

2 stops21h 21m

Ontario

Wed 7/22

11:48 am-5:40 pm

2 stops19h 52m

$1,013

AthensOntario

ATH - ONT

ATHONT

Athens Eleftherios V.

Thu 7/9

9:45 am-9:50 pm

1 stop22h 05m

Ontario

Wed 7/22

11:48 am-5:40 pm

2 stops19h 52m

$1,016

AthensOntario

ATH - ONT

ATHONT

Athens Eleftherios V.

Thu 7/9

6:00 am-5:21 pm

2 stops21h 21m

Ontario

Sat 7/25

12:00 pm-10:00 am

1 stop36h 00m

$1,017

AthensOntario

ATH - ONT

ATHONT

Athens Eleftherios V.

Thu 7/9

6:00 am-5:21 pm

2 stops21h 21m

Ontario

Sat 7/25

12:00 pm-10:00 am

1 stop36h 00m

$1,018

AthensOntario

ATH - ONT

ATHONT

Athens Eleftherios V.

Thu 7/9

6:00 am-5:21 pm

2 stops21h 21m

Ontario

Sat 7/25

7:05 am-12:50 pm

2 stops19h 45m

$1,019

AthensOntario

ATH - ONT

ATHONT

Athens Eleftherios V.

Thu 7/9

6:00 am-5:21 pm

2 stops21h 21m

Ontario

Sat 7/25

7:05 am-12:50 pm

2 stops19h 45m

$1,021

AthensOntario

ATH - ONT

ATHONT

Athens Eleftherios V.

Thu 7/9

6:35 am-4:30 pm

2 stops19h 55m

Ontario

Sat 7/25

12:00 pm-10:00 am

1 stop36h 00m

$1,025

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Los Angeles from

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

Can stopping save me money on Athens to Ontario flights?

You could potentially save up to 33% 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

Fastest flight time

18h 45m

Direct flights

None
The fastest flight from Athens to Ontario takes 18h 45m
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 18h 45m, 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.

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Wed 7/15
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