Latest deals
Insights
When to book
FAQs
Price Alerts

Cheap flights from Ontario to Buenos Aires from $454

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Ontario to Buenos Aires departing on 8/13. 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 Ontario to Buenos Aires

Cheap round-trip flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
9:36 pm - 3:00 am
ONT
-
EZE
25h 24m
3 stops
Multiple Airlines Logo
1:35 am - 9:45 pm
EZE
-
ONT
24h 10m
2 stops
$875Multiple Airlines
Wed, Aug 12 - Wed, Aug 26
Multiple Airlines Logo
12:55 am - 6:45 am
ONT
-
EZE
25h 50m
3 stops
Multiple Airlines Logo
7:10 am - 9:45 pm
EZE
-
ONT
42h 35m
2 stops
$884Multiple Airlines
Tue, Sep 15 - Wed, Sep 23
Multiple Airlines Logo
9:36 pm - 5:40 am
ONT
-
EZE
28h 04m
3 stops
Multiple Airlines Logo
7:10 am - 9:45 pm
EZE
-
ONT
18h 35m
2 stops
$907Multiple Airlines
Tue, Sep 1 - Tue, Sep 22
Multiple Airlines Logo
9:36 pm - 1:20 am
ONT
-
EZE
23h 44m
3 stops
Multiple Airlines Logo
2:30 am - 9:45 pm
EZE
-
ONT
23h 15m
2 stops
$957Multiple Airlines
Thu, Aug 6 - Mon, Aug 24
Multiple Airlines Logo
12:55 am - 6:10 am
ONT
-
EZE
25h 15m
3 stops
Multiple Airlines Logo
4:50 pm - 9:45 pm
EZE
-
ONT
32h 55m
2 stops
$999Multiple Airlines
Sun, Sep 13 - Mon, Sep 28
Multiple Airlines Logo
12:55 am - 1:20 am
ONT
-
EZE
20h 25m
3 stops
Multiple Airlines Logo
2:30 am - 9:45 pm
EZE
-
ONT
23h 15m
2 stops
$1,046Multiple Airlines
Sat, Aug 8 - Fri, Aug 21
Multiple Airlines Logo
9:36 pm - 5:00 am
ONT
-
EZE
27h 24m
3 stops
Multiple Airlines Logo
9:15 pm - 11:05 pm
EZE
-
ONT
29h 50m
3 stops
$1,073Multiple Airlines
Sat, Sep 5 - Sat, Oct 17
Multiple Airlines Logo
12:55 am - 9:16 am
ONT
-
EZE
28h 21m
3 stops
Multiple Airlines Logo
2:45 am - 11:05 pm
EZE
-
ONT
24h 20m
3 stops
$1,079Multiple Airlines
Thu, Sep 3 - Sat, Sep 12
Multiple Airlines Logo
9:36 pm - 6:45 am
ONT
-
EZE
29h 09m
3 stops
Multiple Airlines Logo
4:50 pm - 11:05 pm
EZE
-
ONT
34h 15m
3 stops
$1,086Multiple Airlines
Tue, Jul 7 - Tue, Jul 14
Multiple Airlines Logo
12:55 am - 3:40 pm
ONT
-
EZE
34h 45m
3 stops
Multiple Airlines Logo
9:15 pm - 11:05 pm
EZE
-
ONT
29h 50m
3 stops
$1,094Multiple Airlines
Wed, Aug 5 - Mon, Aug 17

Save money when you book flights with momondo

Big names and deals

Big names and deals

Search 100s of travel sites to compare prices.

Filter for what you want

Filter for what you want

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

Trusted and free

Trusted and free

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

Price Alerts

Price Alerts

Not ready to book? to track prices.
Search flight deals

United Airlines flights from Ontario to Buenos Aires Ministro Pistarini Airport

Our best United Airlines deals on Ontario to Buenos Aires Ministro Pistarini Airport flight tickets
United Airlines
Jun 25
ONT6:00 amOntario
22h 00m
2 stops
EZE8:00 amBuenos Aires Ministro Pistarini
Jun 30
EZE9:00 pmBuenos Aires Ministro Pistarini
19h 47m
2 stops
ONT12:47 pmOntario
$1,110
United Airlines
Jun 17
ONT5:45 amOntario
22h 15m
1 stop
EZE8:00 amBuenos Aires Ministro Pistarini
Jun 23
EZE9:00 pmBuenos Aires Ministro Pistarini
28h 55m
1 stop
ONT9:55 pmOntario
$1,118
United Airlines
Jun 14
ONT6:39 pmOntario
33h 21m
2 stops
EZE8:00 amBuenos Aires Ministro Pistarini
Jun 22
EZE9:00 pmBuenos Aires Ministro Pistarini
29h 37m
2 stops
ONT10:37 pmOntario
$1,131

Avianca flights from Ontario to Buenos Aires Ministro Pistarini Airport

Our best Avianca deals on Ontario to Buenos Aires Ministro Pistarini Airport flight tickets
Avianca
Jun 25
ONT11:35 pmOntario
25h 25m
3 stops
EZE5:00 amBuenos Aires Ministro Pistarini
Jun 30
EZE6:10 amBuenos Aires Ministro Pistarini
19h 35m
3 stops
ONT9:45 pmOntario
$1,351
Avianca
Jun 25
ONT11:35 pmOntario
26h 05m
2 stops
EZE5:40 amBuenos Aires Ministro Pistarini
Jun 29
EZE2:30 amBuenos Aires Ministro Pistarini
23h 15m
3 stops
ONT9:45 pmOntario
$1,360
Avianca
Jun 20
ONT11:35 pmOntario
20h 50m
2 stops
EZE12:25 amBuenos Aires Ministro Pistarini
Jul 3
EZE2:30 amBuenos Aires Ministro Pistarini
23h 15m
2 stops
ONT9:45 pmOntario
$1,566

momondo Fare Finder

 
Customize your flight search to find flights from Ontario to Buenos Aires Ministro Pistarini Airport 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 12, 2026.
Use the filters below to find and compare flights from Ontario to Buenos Aires Ministro Pistarini Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

OntarioBuenos Aires

ONT - EZE

ONTEZE

Ontario

Wed 8/12

9:36 pm-3:00 am

3 stops25h 24m

Buenos Aires Ministro Pistarini

Wed 8/26

1:35 am-9:45 pm

2 stops24h 10m

$875

OntarioBuenos Aires

ONT - EZE

ONTEZE

Ontario

Tue 9/15

12:55 am-6:45 am

3 stops25h 50m

Buenos Aires Ministro Pistarini

Wed 9/23

7:10 am-9:45 pm

2 stops42h 35m

$884

OntarioBuenos Aires

ONT - EZE

ONTEZE

Ontario

Tue 9/1

9:36 pm-5:40 am

3 stops28h 04m

Buenos Aires Ministro Pistarini

Tue 9/22

7:10 am-9:45 pm

2 stops18h 35m

$907

OntarioBuenos Aires

ONT - EZE

ONTEZE

Ontario

Thu 8/6

9:36 pm-1:20 am

3 stops23h 44m

Buenos Aires Ministro Pistarini

Mon 8/24

2:30 am-9:45 pm

2 stops23h 15m

$957

OntarioBuenos Aires

ONT - EZE

ONTEZE

Ontario

Sun 9/13

12:55 am-6:10 am

3 stops25h 15m

Buenos Aires Ministro Pistarini

Mon 9/28

4:50 pm-9:45 pm

2 stops32h 55m

$999
Quickest round-trip

OntarioBuenos Aires

ONT - EZE

ONTEZE

Ontario

Sat 8/8

12:55 am-1:20 am

3 stops20h 25m

Buenos Aires Ministro Pistarini

Fri 8/21

2:30 am-9:45 pm

2 stops23h 15m

$1,046

OntarioBuenos Aires

ONT - EZE

ONTEZE

Ontario

Sat 9/5

9:36 pm-5:00 am

3 stops27h 24m

Buenos Aires Ministro Pistarini

Sat 10/17

9:15 pm-11:05 pm

3 stops29h 50m

$1,073

OntarioBuenos Aires

ONT - EZE

ONTEZE

Ontario

Thu 9/3

12:55 am-9:16 am

3 stops28h 21m

Buenos Aires Ministro Pistarini

Sat 9/12

2:45 am-11:05 pm

3 stops24h 20m

$1,079

OntarioBuenos Aires

ONT - EZE

ONTEZE

Ontario

Tue 7/7

9:36 pm-6:45 am

3 stops29h 09m

Buenos Aires Ministro Pistarini

Tue 7/14

4:50 pm-11:05 pm

3 stops34h 15m

$1,086

OntarioBuenos Aires

ONT - EZE

ONTEZE

Ontario

Wed 8/5

12:55 am-3:40 pm

3 stops34h 45m

Buenos Aires Ministro Pistarini

Mon 8/17

9:15 pm-11:05 pm

3 stops29h 50m

$1,094

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
1
2

See travel insights to Buenos Aires from

How to get the cheapest flight ticket from Ontario to Buenos Aires Ministro Pistarini Airport

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 Ontario to Buenos Aires Ministro Pistarini Airport flights?

You could potentially save up to 14% on your flight if you consider stops on a Ontario to Buenos Aires Ministro Pistarini Airport flight.

When to book flights from Ontario to Buenos Aires Ministro Pistarini Airport

Are you open to changing your travel dates? Check out the ideal times to fly from Ontario to Buenos Aires Ministro Pistarini Airport according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Ontario to Buenos Aires Ministro Pistarini Airport (ONT to EZE) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Ontario to Buenos Aires Ministro Pistarini Airport

Fastest flight time

19h 22m

Direct flights

None
The fastest flight from Ontario to Buenos Aires Ministro Pistarini Airport takes 19h 22m
There are no direct flights from Ontario to Buenos Aires Ministro Pistarini Airport. There are no popular flight routes from Ontario to Buenos Aires Ministro Pistarini Airport.
Search flight deals

Frequently asked questions about flying from Ontario to Buenos Aires Ministro Pistarini Airport

  • How far is Ontario to Buenos Aires Ministro Pistarini by plane?

    The straight-line distance from Ontario to Buenos Aires Ministro Pistarini is 6098.3 mi. In terms of flight time, this usually takes a little over 19h 22m.

  • When did momondo last update prices for flights from Ontario Airport to Buenos Aires Ministro Pistarini Airport?

    Prices for flights from Ontario Airport to Buenos Aires Ministro Pistarini Airport are updated daily.

  • How old do you have to be to fly from Ontario Airport to Buenos Aires Ministro Pistarini Airport?

    The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Ontario Airport to Buenos Aires Ministro Pistarini Airport.

  • What documentation or ID do you need to fly to Buenos Aires Ministro Pistarini Airport?

    The travel and health documents required for your trip to Buenos Aires Ministro Pistarini Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Buenos Aires Ministro Pistarini Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

Why use momondo?

Why should I use momondo to find a flight deal from Ontario to Buenos Aires?

Finding the right flight to Buenos Aires from Ontario is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to Buenos Aires quick and easy, saving you time and money.

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

momondo does allow users to show only those flights to Buenos Aires from Ontario which offer a flexible booking policy as well as other useful filters and features.

How can momondo help me find flights from Ontario to Buenos Aires?

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to Buenos Aires from Ontario.

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

Yes momondo offers price alerts on flights to Buenos Aires from Ontario. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.

An easier way to manage your Buenos Aires Ministro Pistarini Airport 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
Sun 7/12
Sun 7/19
By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to Buenos Aires

Popular cities in Argentina

Popular flights according to clicks in the last 7 days on momondo
Flights to Buenos Aires Jorge Newbery Airportfrom $610