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Cheap flights from Athens to Los Angeles from $711

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 9/1. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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0 bags

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Cheap round-trip flights

American Airlines Logo
8:15 am - 10:48 pmATH-ONT
24h 33m2 stops
American Airlines Logo
10:50 am - 4:45 pmONT-ATH
19h 55m2 stops
$845American Airlines
Find Deal
sáb., ago. 16 - mié., ago. 20
British Airways Logo
8:15 am - 6:24 pmATH-ONT
20h 09m2 stops
British Airways Logo
10:50 am - 4:45 pmONT-ATH
19h 55m2 stops
$847British Airways
Find Deal
sáb., ago. 16 - mié., ago. 20
United Airlines Logo
11:45 am - 10:30 pmATH-ONT
20h 45m2 stops
United Airlines Logo
7:00 am - 10:30 amONT-ATH
17h 30m1 stop
$848United Airlines
Find Deal
jue., ago. 21 - mar., sep. 2
United Airlines Logo
6:00 am - 5:29 pmATH-ONT
21h 29m2 stops
United Airlines Logo
7:00 am - 10:30 amONT-ATH
17h 30m1 stop
$850United Airlines
Find Deal
mié., ago. 20 - mar., sep. 2
United Airlines Logo
6:00 am - 10:52 pmATH-ONT
26h 52m2 stops
United Airlines Logo
7:00 am - 10:30 amONT-ATH
17h 30m1 stop
$853United Airlines
Find Deal
lun., ago. 18 - mar., sep. 2
United Airlines Logo
12:10 pm - 10:30 pmATH-ONT
20h 20m2 stops
United Airlines Logo
7:00 am - 10:30 amONT-ATH
17h 30m1 stop
$858United Airlines
Find Deal
vie., sep. 5 - mar., sep. 9
Air Canada Logo
4:00 pm - 5:37 pmATH-ONT
35h 37m2 stops
Air Canada Logo
6:38 pm - 1:30 pmONT-ATH
32h 52m2 stops
$868Air Canada
Find Deal
mié., sep. 3 - vie., sep. 19
Delta Logo
9:10 am - 7:11 pmATH-ONT
20h 01m1 stop
Delta Logo
7:05 am - 10:00 amONT-ATH
16h 55m1 stop
$871Delta
Find Deal
sáb., ago. 16 - mié., ago. 20
Delta Logo
9:10 am - 7:11 pmATH-ONT
20h 01m1 stop
Delta Logo
1:15 pm - 4:40 pmONT-ATH
17h 25m2 stops
$873Delta
Find Deal
sáb., ago. 16 - mié., ago. 20
Logo
3:55 am - 6:47 pmATH-ONT
24h 52m2 stops
Logo
10:56 pm - 8:55 amONT-ATH
23h 59m2 stops
$1,204
Find Deal
lun., sep. 29 - mar., sep. 30

United Airlines flights from Athens to Ontario

Our best United Airlines deals on Athens to Ontario flight tickets
United Airlines
Aug 21
ATH11:45 amAthens Eleftherios V.
20h 45m
2 stops
ONT10:30 pmOntario
Sep 2
ONT7:00 amOntario
17h 30m
1 stop
ATH10:30 amAthens Eleftherios V.
$848
Find similar
United Airlines
Aug 20
ATH6:00 amAthens Eleftherios V.
21h 29m
2 stops
ONT5:29 pmOntario
Sep 2
ONT7:00 amOntario
17h 30m
1 stop
ATH10:30 amAthens Eleftherios V.
$850
Find similar
United Airlines
Aug 18
ATH6:00 amAthens Eleftherios V.
26h 52m
2 stops
ONT10:52 pmOntario
Sep 2
ONT7:00 amOntario
17h 30m
1 stop
ATH10:30 amAthens Eleftherios V.
$853
Find similar

Delta flights from Athens to Ontario

Our best Delta deals on Athens to Ontario flight tickets
Delta
Aug 16
ATH9:10 amAthens Eleftherios V.
20h 01m
1 stop
ONT7:11 pmOntario
Aug 20
ONT7:05 amOntario
16h 55m
1 stop
ATH10:00 amAthens Eleftherios V.
$871
Find similar
Delta
Aug 16
ATH9:10 amAthens Eleftherios V.
20h 01m
1 stop
ONT7:11 pmOntario
Aug 20
ONT1:15 pmOntario
17h 25m
2 stops
ATH4:40 pmAthens Eleftherios V.
$873
Find similar
Delta
Aug 22
ATH6:00 amAthens Eleftherios V.
20h 08m
2 stops
ONT4:08 pmOntario
Aug 29
ONT1:15 pmOntario
17h 25m
2 stops
ATH4:40 pmAthens Eleftherios V.
$882
Find similar

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 julio 31, 2025.
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

AthensOntario

ATH - ONT

ATHONT

Athens Eleftherios V.

sáb. 8/16

8:15 am-10:48 pm

2 stops24h 33m

Ontario

mié. 8/20

10:50 am-4:45 pm

2 stops19h 55m

$845

AthensOntario

ATH - ONT

ATHONT

Athens Eleftherios V.

sáb. 8/16

8:15 am-6:24 pm

2 stops20h 09m

Ontario

mié. 8/20

10:50 am-4:45 pm

2 stops19h 55m

$847

AthensOntario

ATH - ONT

ATHONT

Athens Eleftherios V.

jue. 8/21

11:45 am-10:30 pm

2 stops20h 45m

Ontario

mar. 9/2

7:00 am-10:30 am

1 stop17h 30m

$848

AthensOntario

ATH - ONT

ATHONT

Athens Eleftherios V.

mié. 8/20

6:00 am-5:29 pm

2 stops21h 29m

Ontario

mar. 9/2

7:00 am-10:30 am

1 stop17h 30m

$850

AthensOntario

ATH - ONT

ATHONT

Athens Eleftherios V.

lun. 8/18

6:00 am-10:52 pm

2 stops26h 52m

Ontario

mar. 9/2

7:00 am-10:30 am

1 stop17h 30m

$853

AthensOntario

ATH - ONT

ATHONT

Athens Eleftherios V.

vie. 9/5

12:10 pm-10:30 pm

2 stops20h 20m

Ontario

mar. 9/9

7:00 am-10:30 am

1 stop17h 30m

$858

AthensOntario

ATH - ONT

ATHONT

Athens Eleftherios V.

mié. 9/3

4:00 pm-5:37 pm

2 stops35h 37m

Ontario

vie. 9/19

6:38 pm-1:30 pm

2 stops32h 52m

$868

AthensOntario

ATH - ONT

ATHONT

Athens Eleftherios V.

sáb. 8/16

9:10 am-7:11 pm

1 stop20h 01m

Ontario

mié. 8/20

7:05 am-10:00 am

1 stop16h 55m

$871

AthensOntario

ATH - ONT

ATHONT

Athens Eleftherios V.

sáb. 8/16

9:10 am-7:11 pm

1 stop20h 01m

Ontario

mié. 8/20

1:15 pm-4:40 pm

2 stops17h 25m

$873

AthensOntario

ATH - ONT

ATHONT

Athens Eleftherios V.

lun. 9/29

3:55 am-6:47 pm

2 stops24h 52m

Ontario

mar. 9/30

10:56 pm-8:55 am

2 stops23h 59m

$1,204

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 4% 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

$711

Fastest flight time

19h 04m

Direct flights

None

Airports in Ontario

1 airport
The best one-way flight to Ontario from Athens in the past 72 hours is $711. The best round-trip flight deal from Athens to Ontario found on momondo in the last 72 hours is $845.
The fastest flight from Athens to Ontario takes 19h 04m
There are no direct flights from Athens to Ontario. Popular non-direct route for this connection is Athens Eleftherios V. Airport - Ontario Airport.
There is 1 airport near Ontario: Ontario (ONT)
Search flight deals

  • 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 10m, 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 many operators does momondo search for flights from Athens Eleftherios V. Airport to Ontario Airport?

  • 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.

  • What is the most popular airline from Athens to Ontario?

Best airlines flying from Athens to Ontario

Compare and see reviews for airlines that fly from Athens to Ontario with momondo
Airline
Rating
Free Cancellation
Price
United AirlinesPriceFrom $913Free CancellationRating
7.4
8,900 reviews
Search United Airlines flights

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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