Cheap Flight Tickets from Ontario (ONT) to Buenos Aires (EZE), Starting at $1178

Good to Know: Cheapest and Fastest ONT - EZE Flights

Useful information for finding best airline tickets from Ontario International to Ministro Pistarini International on your next trip.

Cheapest Round Trip Flight

$1228

UA United Airlines • 1 stop • 36h 55m

Jun 20 – Jun 26

The cheapest round trip flight from Ontario to Buenos Aires (ONT-EZE-ONT) is currently $1228

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Fastest Flight

29h 10m

The fastest nonstop flight from Ontario to Buenos Aires (ONT-EZE) takes 29h 10m

Latest Flight Deals from Ontario (ONT) to Buenos Aires (EZE)

Compare and book low fare round-trip air tickets from Ontario to Buenos Aires. Ideal for travelers with confirmed return itineraries.

Jun 20 - Jun 26, Economy
UA
Ontario → Buenos Aires
36h 55m
5:45 AM - 8:00 AM • 1 stop
UA
Ontario → Buenos Aires
47h 35m
9:00 PM - 9:55 PM • 1 stop
$1228
United Airlines
Jun 28 - Jul 04, Economy
UA
Ontario → Buenos Aires
36h 55m
5:45 AM - 8:00 AM • 1 stop
UA
Ontario → Buenos Aires
47h 35m
9:00 PM - 9:55 PM • 1 stop
$1237
United Airlines
Jun 28 - Jul 04, Economy
LA
Ontario → Buenos Aires
29h 10m
11:50 AM - 9:40 AM • 2 stops
LA
Ontario → Buenos Aires
40h 37m
3:55 AM - 12:32 AM • 2 stops
$1325
LATAM Airlines
Jun 28 - Jul 04, Economy
LA
Ontario → Buenos Aires
29h 10m
11:50 AM - 9:40 AM • 2 stops
LA
Ontario → Buenos Aires
27h 4m
7:21 PM - 7:45 AM • 1 stop
$1440
LATAM Airlines
Jun 21 - Jun 27, Economy
LA
Ontario → Buenos Aires
29h 15m
11:50 AM - 9:45 AM • 1 stop
LA
Ontario → Buenos Aires
25h 25m
7:35 AM - 7:00 PM • 1 stop
$1637
LATAM Airlines
Jun 21 - Jun 27, Economy
LA
Ontario → Buenos Aires
29h 15m
11:50 AM - 9:45 AM • 1 stop
LA
Ontario → Buenos Aires
34h 16m
7:35 AM - 12:31 AM • 2 stops
$1659
LATAM Airlines

Fly from Ontario to Buenos Aires with the Best Airfare Deals on FareLeaders

Looking for a cheap last-minute deal or the best round-trip flight from Ontario to Buenos Aires? Find the biggest savings on one-way and round-trip tickets right here.

FAQs on Ontario to Buenos Aires Flights

What are the airports in Ontario?
ONT
What’s the most popular airline flying from ONT to EZE?
The most popular airline flying from Ontario to Buenos Aires are
Can I fly from ONT to EZE non-stop?
NO
Which airlines fly nonstop between Ontario and Buenos Aires?
The non-stop flights between Ontario and Buenos Aires are .
What’s the earliest departure time from ONT to EZE Airport?
The earliest flight leaves ONT at 5:45 am and lands in EZE - Ministro Pistarini International
What are the airports in Buenos Aires?
EZE
Can I make changes to my Ontario to Buenos Aires flight tickets or cancel them on FareLeaders.com?
No. We are an airfare comparison site. All the tickets are booked by the travel agent offering the flight deal and any changes or cancellations to be made are directly done directly by them or the airlines.
Can I cancel my flight tickets from ONT to EZE?
Read the fare rules of the Ontario to Buenos Aires air tickets booked. Some airlines allow you to cancel the tickets within a stipulated time period with a cancellation fee.
Which airline alliances offer flights from Ontario and Buenos Aires?
operate flights between Ontario and Buenos Aires
How long does a flight from Ontario to Buenos Aires take?
It takes approximately 12 hour to fly non-stop from ONT to EZE, which is 6087.2 miles by air.
Which airlines provide the cheapest flights from Ontario (ONT) to Buenos Aires (EZE) ?
In the past couple of days, the cheapest tickets to EZE from ONT were found on LA : USD 1659
Do I need a passport to fly between ONT and EZE?
Yes
What’s the latest departure time from ONT to EZE ?
The last flight leaves ONT at 11:50 am

Ontario (ONT) to Buenos Aires (EZE): Airport Information

Origin Airport Ontario International , Ontario, US
Destination Airport Ministro Pistarini International , Buenos Aires, AR
Distance 6087 miles

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