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Porto Alegre

$712+ 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 2/10. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — POA
Jan 11 — Jan 181
Sun 1/11
Sun 1/18
1 adult, Economy
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Cheap flight deals from Ontario to Porto Alegre

Best flights from Ontario to Porto Alegre
Discover carefully curated flight deals from Ontario to Porto Alegre that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated December 12, 2025.

This United Airlines deal was found by Cheapflights users on 12/9. 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 3/316:00 amONT - POA
2 stops27h 10mUnited Airlines
Wed 4/13:30 pmPOA - ONT
2 stops34h 41mUnited Airlines
Deal found 12/9$1,522

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 December 12, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$1,522
(United Airlines)

One-way from

$712
(United Airlines)

Popular in

June

Cheapest in

September

Average price

$893
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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One-way flight from Ontario to Porto Alegre Salgado Filho
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Highest demand for flights based on searches. 6% potential increase in price ($46 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($22 potential savings vs. average RT price).
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Average for round-trip flights in December 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 December 12, 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

Tue 3/31

6:00 am-1:10 pm

2 stops27h 10m

Porto Alegre Salgado Filho

Wed 4/1

3:30 pm-10:11 pm

2 stops34h 41m

$1,522

OntarioPorto Alegre

ONT - POA

ONTPOA

Ontario

Tue 2/10

8:00 am-2:35 pm

2 stops25h 35m

$712

OntarioPorto Alegre

ONT - POA

ONTPOA

Ontario

Mon 2/9

6:10 am-2:35 pm

2 stops27h 25m

$712

OntarioPorto Alegre

ONT - POA

ONTPOA

Ontario

Mon 2/16

6:00 am-6:15 pm

2 stops31h 15m

$712

OntarioPorto Alegre

ONT - POA

ONTPOA

Ontario

Wed 2/11

8:00 am-6:20 pm

2 stops29h 20m

$712

OntarioPorto Alegre

ONT - POA

ONTPOA

Ontario

Thu 2/12

6:00 am-6:20 pm

2 stops31h 20m

$712

OntarioPorto Alegre

ONT - POA

ONTPOA

Ontario

Thu 1/22

6:00 am-2:40 pm

2 stops27h 40m

$714

OntarioPorto Alegre

ONT - POA

ONTPOA

Ontario

Wed 1/21

12:41 pm-1:15 pm

2 stops19h 34m

$724

OntarioPorto Alegre

ONT - POA

ONTPOA

Ontario

Sat 2/14

6:00 am-2:40 pm

2 stops27h 40m

$752

OntarioPorto Alegre

ONT - POA

ONTPOA

Ontario

Sun 2/15

6:00 am-6:20 pm

2 stops31h 20m

$752

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/10

Showing 1-10 of 13 results
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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 $313). Flying from Ontario to Porto Alegre in January is currently the most expensive (average of $575). 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 27h 10m. 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 $313). Flying from Ontario to Porto Alegre in January is currently the most expensive (average of $575). 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.

See more FAQs

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