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Porto Alegre

$755+ Cheap flights from Ontario (ONT) to Porto Alegre (POA)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 3/15. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — POA
Feb 26 — Mar 51
Thu 2/26
Thu 3/5
1 adult, Economy
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Cheap flight deals from Ontario to Porto Alegre

Cheapest flights from Ontario to Porto Alegre
Explore the most affordable flight options available from Ontario to Porto Alegre. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 27, 2026.

This United Airlines deal was found by Cheapflights users on 1/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/176:00 am
ONT
-
POA
2 stops28h 25m
United Airlines
Thu 3/193:30 pm
POA
-
ONT
2 stops35h 06m
United Airlines
Deal found 1/25$1,373

Find flight deals from Ontario to Porto Alegre

Discover tips and strategies to find the most affordable flight options for your journey from Ontario (ONT) to Porto Alegre (POA). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated January 27, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$1,373
(United Airlines)

One-way from

$755
(LATAM Airlines)

Popular in

June

Cheapest in

September

Average price

$827
Provider with most accurate pricing for Ontario-Porto Alegre Salgado Filho flight deals.
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Provider most trusted by Cheapflights users for Ontario-Porto Alegre Salgado Filho flights.
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From Ontario to Porto Alegre Salgado Filho
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One-way flight from Ontario to Porto Alegre Salgado Filho
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Highest demand for flights based on searches. 10% potential increase in price ($82 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($21 potential savings vs. average RT price).
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Average for round-trip flights in January 2026
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Cheapflights Fare Finder

 
Customize your flight search to find flights from Ontario to Porto Alegre 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, Cheapflights users made 2,558,603 searches. Data last updated January 27, 2026.
Use the filters below to find and compare flights from Ontario to Porto Alegre that are best for you.

Fly from

Ontario

Fly to

Porto Alegre

Route

Depart

Return

Price

OntarioPorto Alegre

ONT - POA

ONTPOA

Ontario

Tue 3/17

6:00 am-2:25 pm

2 stops28h 25m

Porto Alegre Salgado Filho

Thu 3/19

3:30 pm-10:36 pm

2 stops35h 06m

$1,373

OntarioPorto Alegre

ONT - POA

ONTPOA

Ontario

Sun 3/15

12:57 pm-5:05 pm

2 stops24h 08m

$755

OntarioPorto Alegre

ONT - POA

ONTPOA

Ontario

Wed 2/18

8:00 am-6:20 pm

2 stops29h 20m

$770

OntarioPorto Alegre

ONT - POA

ONTPOA

Ontario

Wed 2/18

1:15 pm-2:05 pm

2 stops19h 50m

$2,912

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/26

  • Most accurate provider: When it comes to deals on Ontario-Porto Alegre flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Ontario-Porto Alegre flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Ontario-Porto Alegre flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Ontario-Porto Alegre 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-Porto Alegre 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 Porto Alegre

Have a flexible travel schedule? Discover the best time to fly to Porto Alegre from Ontario with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Ontario to Porto Alegre

What is the cheapest month to book a flight from Ontario to Porto Alegre?

Currently, December is the cheapest month in which you can book a flight from Ontario to Porto Alegre (average of $286). Flying from Ontario to Porto Alegre in January is currently the most expensive (average of $595). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

Related info for your journey

Find useful and relevant information for your journey from Ontario to Porto Alegre. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from Ontario to Porto Alegre?

    Departing from Ontario to Porto Alegre will take you 28h 25m. Airlines will cover a distance of 6186 mi.

  • Can I find deals for flights from Ontario to Porto Alegre that include hotel bookings?

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

  • How can I find direct flights from Ontario to Porto Alegre?

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

  • Can I find deals for business class flights from Ontario to Porto Alegre?

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

  • What is the cheapest month to book a flight from Ontario to Porto Alegre?

    Currently, December is the cheapest month in which you can book a flight from Ontario to Porto Alegre (average of $286). Flying from Ontario to Porto Alegre in January is currently the most expensive (average of $595). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

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