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Porto Alegre

$1,234+ Cheap flights from Ontario (ONT) to Porto Alegre (POA)

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 3/1. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — POA
Nov 27 — Dec 41
Thu 11/27
Thu 12/4
1 adult, Economy
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Find 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 October 28, 2025.

This Mytrip deal was found by Cheapflights users on 10/25. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/2512:42 amONT - POA
3 stops35h 18mMultiple Airlines
Tue 12/308:25 pmPOA - ONT
3 stops31h 27mMultiple Airlines
Deal found 10/25$2,453
This KAYAK deal was found by Cheapflights users on 10/26. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/2111:10 amONT - POA
2 stops21h 05mLATAM Airlines
Fri 1/22:05 pmPOA - ONT
2 stops24h 55mLATAM Airlines
Deal found 10/26$6,730

Cheap 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 October 28, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$1,234
(Delta)

Popular in

December

Cheapest in

September

Average price

$649
Provider with most accurate pricing for Los Angeles-Porto Alegre Salgado Filho flight deals.
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Provider most trusted by Cheapflights users for Los Angeles-Porto Alegre Salgado Filho flights.
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From Ontario to Porto Alegre Salgado Filho
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Highest demand for flights based on searches. 14% potential increase in price ($112 potential increase over avg. RT price).
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Cheapest flight prices on average. 5% potential price decrease ($34 potential savings vs. average RT price).
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Average for round-trip flights in October 2025
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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 October 28, 2025.
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

Sun 3/1

10:30 pm-11:35 am

2 stops32h 05m

Porto Alegre Salgado Filho

Wed 3/4

5:55 pm-9:14 pm

2 stops32h 19m

$1,234

OntarioPorto Alegre

ONT - POA

ONTPOA

Ontario

Sun 3/1

1:00 pm-5:05 pm

2 stops23h 05m

Porto Alegre Salgado Filho

Wed 3/4

12:30 pm-11:38 am

2 stops28h 08m

$1,258

OntarioPorto Alegre

ONT - POA

ONTPOA

Ontario

Thu 12/25

12:42 am-5:00 pm

3 stops35h 18m

Porto Alegre Salgado Filho

Tue 12/30

8:25 pm-10:52 pm

3 stops31h 27m

$2,453

OntarioPorto Alegre

ONT - POA

ONTPOA

Ontario

Sun 12/21

11:10 am-1:15 pm

2 stops21h 05m

Porto Alegre Salgado Filho

Fri 1/2

2:05 pm-10:00 am

2 stops24h 55m

$6,730

OntarioPorto Alegre

ONT - POA

ONTPOA

Ontario

Sat 11/29

7:00 am-3:25 pm

2 stops27h 25m

$1,245

OntarioPorto Alegre

ONT - POA

ONTPOA

Ontario

Sat 11/29

6:05 am-3:25 pm

2 stops28h 20m

$2,242

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/27

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, March is the cheapest month in which you can book a flight from Ontario to Porto Alegre (average of $467). Flying from Ontario to Porto Alegre in December is currently the most expensive (average of $596). 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 23h 05m. Airlines will cover a distance of 6186 mi. Both multi-stop and nonstop flights can be found to your destination and back.

  • 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, March is the cheapest month in which you can book a flight from Ontario to Porto Alegre (average of $467). Flying from Ontario to Porto Alegre in December is currently the most expensive (average of $596). 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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