Buenos Aires

$452+ Cheap flights from Ontario (ONT) to Buenos Aires (BUE)

ONT — BUE
Dec 2 — Dec 91
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Cheap flight deals from Ontario to Buenos Aires

Cheapest flights from Ontario to Buenos Aires

Thu 11/262:01 pm -
3 stops38h 31m
Wed 12/28:00 am -
3 stops31h 45m
Deal found 10/31$1,007
Mon 11/166:30 am -
3 stops31h 45m
Wed 12/28:00 am -
3 stops30h 28m
Deal found 10/29$1,061
Sun 12/612:05 am -
2 stops20h 15m
Mon 12/148:00 am -
3 stops31h 45m
Deal found 10/31$1,082
Fri 11/277:30 am -
3 stops30h 45m
Tue 12/84:50 pm -
3 stops22h 55m
Deal found 10/28$1,141
Thu 12/106:00 am -
2 stops32h 15m
Mon 12/147:35 pm -
3 stops31h 40m
Deal found 10/29$1,183
Mon 11/166:30 am -
3 stops31h 45m
Sat 11/215:35 am -
3 stops31h 55m
Deal found 10/30$1,203
Sun 11/156:30 am -
3 stops31h 45m
Mon 11/238:00 am -
2 stops32h 39m
Deal found 10/29$1,212
Mon 12/285:00 am -
2 stops21h 20m
Wed 1/2011:55 pm -
2 stops22h 40m
Deal found 10/31$1,272

Find flight deals from Ontario to Buenos Aires

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$1,007
(Mytrip)

One-way from

$452
(Mytrip)

Popular in

December

Cheapest in

September

Average price

$885
Provider with most accurate pricing for Ontario-Buenos Aires (BUE) flight deals.
Provider most trusted by Cheapflights users for Ontario-Buenos Aires (BUE) flights.
From Ontario to Buenos Aires (BUE)
One-way flight from Ontario to Buenos Aires (BUE)
Highest demand for flights based on searches. 4% potential increase in price ($46 potential increase over avg. RT price).
Cheapest flight prices on average. 1% potential price decrease ($16 potential savings vs. average RT price).
Average for round-trip flights in November 2026

Cheapflights Fare Finder

 
Use the filters below to find and compare flights from Ontario to Buenos Aires that are best for you.

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Route

Depart

Return

Price

Cheapest round-trip

OntarioBuenos Aires

ONT Ontario - EZE Buenos Aires Ministro Pistarini

ONTEZE

Ontario

Tue 4/13

7:00 am-9:40 am

2 stops22h 40m

Buenos Aires Ministro Pistarini

Wed 12/31

12:00 am-7:00 pm

Nonstop0h 00m

$713

OntarioBuenos Aires

ONT Ontario - EZE Buenos Aires Ministro Pistarini

ONTEZE

Ontario

Tue 1/12

6:00 am-9:20 am

1 stop22h 20m

Buenos Aires Ministro Pistarini

Wed 12/31

12:00 am-7:00 pm

Nonstop0h 00m

$714

OntarioBuenos Aires

ONT Ontario - EZE Buenos Aires Ministro Pistarini

ONTEZE

Ontario

Tue 11/24

5:00 am-7:20 am

2 stops21h 20m

Buenos Aires Ministro Pistarini

Wed 12/31

12:00 am-7:00 pm

Nonstop0h 00m

$714

OntarioBuenos Aires

ONT Ontario - EZE Buenos Aires Ministro Pistarini

ONTEZE

Ontario

Wed 2/3

7:05 am-9:40 am

1 stop21h 35m

Buenos Aires Ministro Pistarini

Wed 12/31

12:00 am-7:00 pm

Nonstop0h 00m

$714

OntarioBuenos Aires

ONT Ontario - EZE Buenos Aires Ministro Pistarini

ONTEZE

Ontario

Tue 12/29

5:55 am-9:20 am

1 stop22h 25m

Buenos Aires Ministro Pistarini

Wed 12/31

12:00 am-7:00 pm

Nonstop0h 00m

$714

OntarioBuenos Aires

ONT Ontario - EZE Buenos Aires Ministro Pistarini

ONTEZE

Ontario

Tue 2/2

7:05 am-9:40 am

1 stop21h 35m

Buenos Aires Ministro Pistarini

Wed 12/31

12:00 am-7:00 pm

Nonstop0h 00m

$714

OntarioBuenos Aires

ONT Ontario - EZE Buenos Aires Ministro Pistarini

ONTEZE

Ontario

Tue 2/2

5:00 am-9:20 am

2 stops23h 20m

Buenos Aires Ministro Pistarini

Wed 12/31

12:00 am-7:00 pm

Nonstop0h 00m

$714
Quickest round-trip

OntarioBuenos Aires

ONT Ontario - EZE Buenos Aires Ministro Pistarini

ONTEZE

Ontario

Mon 2/1

6:00 am-7:20 am

1 stop20h 20m

Buenos Aires Ministro Pistarini

Wed 12/31

12:00 am-7:00 pm

Nonstop0h 00m

$714

OntarioBuenos Aires

ONT Ontario - EZE Buenos Aires Ministro Pistarini

ONTEZE

Ontario

Wed 12/23

5:55 am-9:20 am

1 stop22h 25m

Buenos Aires Ministro Pistarini

Wed 12/31

12:00 am-7:00 pm

Nonstop0h 00m

$714

OntarioBuenos Aires

ONT Ontario - EZE Buenos Aires Ministro Pistarini

ONTEZE

Ontario

Mon 12/28

5:55 am-9:20 am

1 stop22h 25m

Buenos Aires Ministro Pistarini

Wed 12/31

12:00 am-7:00 pm

Nonstop0h 00m

$714

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/31

Showing 1-10 of 22 resultsSorted by cheapest first
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Compare providers for flights from Ontario to Buenos Aires

Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Ontario to Buenos Aires in November.
ProviderPrice AccuracyTrust Score*
FlightHubPrice Accuracy3 starsTrust Score*3 stars
ExpediaPrice Accuracy1 starTrust Score*3 stars
OvagoPrice Accuracy3 starsTrust Score*3 stars
AranGrantPrice Accuracy3 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Ontario-Buenos Aires flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Ontario-Buenos Aires flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Ontario-Buenos Aires flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Ontario-Buenos Aires flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Ontario-Buenos Aires flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Ontario to Buenos Aires

Have a flexible travel schedule? Discover the best time to fly to Buenos Aires from Ontario with our price prediction graph.
Estimated round-trip price

Cheapflights Insights

Everything you need to know about your flight from Ontario to Buenos Aires

No data available for this route at this time. Please check back soon.

Related info for your journey

  • What airport do you fly from for flights from Ontario to Buenos Aires?

    Ontario (ONT) is the airport you will fly out of if you book a flight from Ontario to Buenos Aires. You should not have trouble finding flights to Buenos Aires from Ontario; the airport handles an average of 0 outbound flights to Buenos Aires per day. You should also have plenty of airline options to choose from since 0 airlines have flights from the Ontario airport to Buenos Aires. It is only a 3.1 mi journey to Ontario (ONT) from Ontario’s city center.

  • How long is the flight from Ontario to Buenos Aires?

    There are many flights that can get you from Ontario to Buenos Aires in 20h 20m. Fly via United Airlines or Delta to get the fastest option. Ontario and Buenos Aires are separated by a distance of 6096 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

  • Can I find deals for flights from Ontario to Buenos Aires that include hotel bookings?

    Yes. In addition to deals on Ontario to Buenos Aires flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Ontario to Buenos Aires?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Ontario to Buenos Aires.

  • Can I find deals for business class flights from Ontario to Buenos Aires?

    Yes. Cheapflights offers flight deals from Ontario to Buenos Aires by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

See more FAQs

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