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Cheap flights from Athens to Los Angeles from $601

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 11/25. 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.
United Airlines Logo
6:45 am - 10:35 pm
ATH
-
ONT
25h 50m
2 stops
United Airlines Logo
1:18 pm - 8:10 am
ONT
-
ATH
32h 52m
2 stops
$1,040United Airlines
Fri, Aug 28 - Sun, Aug 30
United Airlines Logo
6:35 am - 8:53 pm
ATH
-
ONT
24h 18m
2 stops
United Airlines Logo
5:00 am - 8:10 am
ONT
-
ATH
41h 10m
2 stops
$1,041United Airlines
Thu, Sep 10 - Mon, Sep 28
United Airlines Logo
12:35 pm - 10:35 pm
ATH
-
ONT
20h 00m
1 stop
United Airlines Logo
6:00 am - 10:00 am
ONT
-
ATH
18h 00m
2 stops
$1,051United Airlines
Fri, Aug 28 - Sun, Aug 30
Iberia Logo
2:05 pm - 10:59 pm
ATH
-
ONT
18h 54m
1 stop
Iberia Logo
7:05 am - 11:45 am
ONT
-
ATH
18h 40m
1 stop
$1,052Iberia
Thu, Aug 27 - Sun, Aug 30
Iberia Logo
2:00 pm - 10:59 pm
ATH
-
ONT
18h 59m
1 stop
Iberia Logo
7:05 am - 11:45 am
ONT
-
ATH
18h 40m
1 stop
$1,053Iberia
Tue, Aug 18 - Sat, Sep 5
United Airlines Logo
6:45 am - 6:47 pm
ATH
-
ONT
22h 02m
2 stops
United Airlines Logo
6:00 am - 10:05 am
ONT
-
ATH
18h 05m
2 stops
$1,054United Airlines
Sat, Nov 7 - Tue, Nov 17
United Airlines Logo
6:35 am - 12:50 pm
ATH
-
ONT
40h 15m
2 stops
United Airlines Logo
7:00 am - 10:35 am
ONT
-
ATH
17h 35m
1 stop
$1,061United Airlines
Thu, Sep 10 - Mon, Sep 28
United Airlines Logo
6:35 am - 8:53 pm
ATH
-
ONT
24h 18m
2 stops
United Airlines Logo
6:00 am - 8:10 am
ONT
-
ATH
40h 10m
2 stops
$1,063United Airlines
Thu, Sep 10 - Mon, Sep 28
United Airlines Logo
12:35 pm - 10:35 pm
ATH
-
ONT
20h 00m
1 stop
United Airlines Logo
7:00 am - 10:35 am
ONT
-
ATH
17h 35m
1 stop
$1,066United Airlines
Tue, Aug 18 - Thu, Oct 15
Delta Logo
6:00 am - 10:40 pm
ATH
-
ONT
26h 40m
2 stops
Delta Logo
7:05 am - 11:00 pm
ONT
-
ATH
29h 55m
2 stops
$1,068Delta
Thu, Sep 10 - Mon, Sep 28

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British Airways flights from Athens to Ontario

Our best British Airways deals on Athens to Ontario flight tickets
British Airways
Aug 13
ATH2:05 pmAthens Eleftherios V.
18h 54m
1 stop
ONT10:59 pmOntario
Aug 17
ONT7:05 amOntario
18h 40m
1 stop
ATH11:45 amAthens Eleftherios V.
$1,108
British Airways
Nov 25
ATH7:50 amAthens Eleftherios V.
21h 15m
2 stops
ONT7:05 pmOntario
Dec 2
ONT12:46 pmOntario
20h 04m
2 stops
ATH6:50 pmAthens Eleftherios V.
$1,119
British Airways
Aug 20
ATH2:05 pmAthens Eleftherios V.
18h 54m
1 stop
ONT10:59 pmOntario
Aug 29
ONT7:05 amOntario
18h 40m
1 stop
ATH11:45 amAthens Eleftherios V.
$1,123

American Airlines flights from Athens to Ontario

Our best American Airlines deals on Athens to Ontario flight tickets
American Airlines
Aug 13
ATH2:05 pmAthens Eleftherios V.
38h 42m
1 stop
ONT6:47 pmOntario
Aug 17
ONT12:33 pmOntario
37h 12m
1 stop
ATH11:45 amAthens Eleftherios V.
$1,110
American Airlines
Aug 14
ATH7:30 amAthens Eleftherios V.
25h 29m
2 stops
ONT10:59 pmOntario
Aug 18
ONT7:05 amOntario
18h 40m
1 stop
ATH11:45 amAthens Eleftherios V.
$1,120
American Airlines
Aug 14
ATH7:30 amAthens Eleftherios V.
25h 29m
2 stops
ONT10:59 pmOntario
Aug 18
ONT7:05 amOntario
17h 55m
2 stops
ATH11:00 amAthens Eleftherios V.
$1,183

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 August 1, 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

AthensOntario

ATH - ONT

ATHONT

Athens Eleftherios V.

Fri 8/28

6:45 am-10:35 pm

2 stops25h 50m

Ontario

Sun 8/30

1:18 pm-8:10 am

2 stops32h 52m

$1,040

AthensOntario

ATH - ONT

ATHONT

Athens Eleftherios V.

Thu 9/10

6:35 am-8:53 pm

2 stops24h 18m

Ontario

Mon 9/28

5:00 am-8:10 am

2 stops41h 10m

$1,041

AthensOntario

ATH - ONT

ATHONT

Athens Eleftherios V.

Fri 8/28

12:35 pm-10:35 pm

1 stop20h 00m

Ontario

Sun 8/30

6:00 am-10:00 am

2 stops18h 00m

$1,051
Quickest round-trip

AthensOntario

ATH - ONT

ATHONT

Athens Eleftherios V.

Thu 8/27

2:05 pm-10:59 pm

1 stop18h 54m

Ontario

Sun 8/30

7:05 am-11:45 am

1 stop18h 40m

$1,052

AthensOntario

ATH - ONT

ATHONT

Athens Eleftherios V.

Tue 8/18

2:00 pm-10:59 pm

1 stop18h 59m

Ontario

Sat 9/5

7:05 am-11:45 am

1 stop18h 40m

$1,053

AthensOntario

ATH - ONT

ATHONT

Athens Eleftherios V.

Sat 11/7

6:45 am-6:47 pm

2 stops22h 02m

Ontario

Tue 11/17

6:00 am-10:05 am

2 stops18h 05m

$1,054

AthensOntario

ATH - ONT

ATHONT

Athens Eleftherios V.

Thu 9/10

6:35 am-12:50 pm

2 stops40h 15m

Ontario

Mon 9/28

7:00 am-10:35 am

1 stop17h 35m

$1,061

AthensOntario

ATH - ONT

ATHONT

Athens Eleftherios V.

Thu 9/10

6:35 am-8:53 pm

2 stops24h 18m

Ontario

Mon 9/28

6:00 am-8:10 am

2 stops40h 10m

$1,063

AthensOntario

ATH - ONT

ATHONT

Athens Eleftherios V.

Tue 8/18

12:35 pm-10:35 pm

1 stop20h 00m

Ontario

Thu 10/15

7:00 am-10:35 am

1 stop17h 35m

$1,066

AthensOntario

ATH - ONT

ATHONT

Athens Eleftherios V.

Thu 9/10

6:00 am-10:40 pm

2 stops26h 40m

Ontario

Mon 9/28

7:05 am-11:00 pm

2 stops29h 55m

$1,068

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 32% 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 54m

Direct flights

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

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