How long is the flight from Ontario to Porto Alegre?

Departing from Ontario to Porto Alegre will take you 27h 35m. Airlines will cover a distance of 6186 mi.

What are the cheapest airlines to fly from Ontario to Porto Alegre one-way?

$474 is the cheapest one-way deal found within the past few days, from Copa Airlines. You may also be able to find cheap deals on Delta and United Airlines, with prices starting from $704 and $710, respectively.

What is the cheapest day to fly from Ontario to Porto Alegre?

Travelers seeking maximum savings on their Ontario to Porto Alegre flight should consider departing on Monday mornings when fares are most often at their lowest. Monday mornings flights should be avoided if possible as fares are typically the most expensive at this time.

In terms of precipitation, rainfall in Porto Alegre ranges from 2.8 - 5.1 inches per month. September is typically the wettest month, when rainfall can reach 5.1 in. November is typically the driest time to visit Porto Alegre when rainfall is around 2.8 in.

If weather is an important factor for your trip to Porto Alegre, use this chart to help with planning. For those seeking warmer temperatures, February is the ideal time of year to visit, when temperatures reach an average of 77.0 F. Travelers looking to avoid the cold should look outside of June, when temperatures are typically at their lowest (around 55.4 F).

How far in advance should I book a flight from Ontario to Porto Alegre?

To save on the cost of your flight from Ontario to Porto Alegre, book at least 17 days before your planned departure. Booking around this time can save you about 103% on the cost of this flight compared to booking a flight leaving this week. We have found prices from $494 if you need a flight within two weeks. For flights within the next 72 hours, you can find tickets from as low as $494.

What is the cheapest month to fly from Ontario to Porto Alegre?

The best pricing can be found in the month of September. Prices to Porto Alegre from Ontario average $659. You can even find prices in September for less than $659, as users have found deals to Porto Alegre from as low as $489. The month of June appears to be one of the more expensive times to travel to Porto Alegre from Ontario. Flying in the targeted month can save you up to 37%.

What is the cheapest time of day to fly from ONT to POA?

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Ontario to Porto Alegre as you normally would.

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.

$474+ Cheap Flights from Ontario to Porto Alegre

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Cheap flight deals from Ontario to Porto Alegre

Round-trip from	$1,257 (LATAM Airlines)
One-way from	$474 (Copa Airlines)
Popular in	June
Cheapest in	September
Average price	$524

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. 7% potential increase in price ($51 potential increase over avg. RT price).

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Cheapest flight prices on average. 3% potential price decrease ($23 potential savings vs. average RT price).

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Average for round-trip flights in September 2025

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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 September 11, 2025.

Sun 3/16:00 amONT - POA

3 stops27h 35mUnited Airlines

Wed 3/43:25 pmPOA - ONT

2 stops34h 56mUnited Airlines

Deal found 9/9

$1,290

One-way flights from Ontario to Porto Alegre
Search for one-way flight options from Ontario to Porto Alegre. Find affordable one-way fares based on user searches. Data last updated September 11, 2025.

Mon 10/206:36 pmONT - POA

2 stops25h 44mCopa Airlines

Deal found 9/10

$474

Tue 10/2110:00 pmONT - POA

2 stops28h 25mDelta

Deal found 9/10

$704

Thu 10/237:02 amONT - POA

2 stops29h 08mUnited Airlines

Deal found 9/10

$710

Fri 10/177:05 amONT - POA

2 stops19h 20mDelta

Deal found 9/10

$744

Sun 10/197:05 amONT - POA

2 stops19h 20mLATAM Airlines

Deal found 9/10

$748

Sat 10/187:02 amONT - POA

2 stops27h 28mUnited Airlines

Deal found 9/10

$750

Sat 9/2011:25 pmONT - POA

3 stops32h 05mMultiple Airlines

Deal found 9/10

$775

Sat 9/206:50 pmONT - POA

2 stops25h 30mCopa Airlines

Deal found 9/10

$897

Sat 9/206:04 amONT - POA

2 stops28h 26mUnited Airlines

Deal found 9/10

$954

Fri 12/1911:59 pmONT - POA

2 stops33h 31mUnited Airlines

Deal found 9/11

$1,384

Sat 12/2011:59 pmONT - POA

2 stops33h 36mMultiple Airlines

Deal found 9/10

$1,514

Thu 12/186:39 pmONT - POA

2 stops24h 51mCopa Airlines

Deal found 9/11

$2,061

Cheapflights Fare Finder

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

Fly from

Fly to

Route

Depart

Return

Price

OntarioPorto Alegre

ONT - POA

ONTPOA

Ontario

Sun 3/1

6:00 am-2:35 pm

3 stops27h 35m

Porto Alegre Salgado Filho

Wed 3/4

3:25 pm-9:21 pm

2 stops34h 56m

$1,290

OntarioPorto Alegre

ONT - POA

ONTPOA

Ontario

Mon 10/20

6:36 pm-12:20 am

2 stops25h 44m

$474

OntarioPorto Alegre

ONT - POA

ONTPOA

Ontario

Tue 10/21

10:00 pm-6:25 am

2 stops28h 25m

$704

OntarioPorto Alegre

ONT - POA

ONTPOA

Ontario

Wed 10/22

7:05 am-6:25 am

2 stops19h 20m

$704

OntarioPorto Alegre

ONT - POA

ONTPOA

Ontario

Thu 10/23

7:02 am-4:10 pm

2 stops29h 08m

$710

OntarioPorto Alegre

ONT - POA

ONTPOA

Ontario

Fri 10/17

7:05 am-6:25 am

2 stops19h 20m

$744

OntarioPorto Alegre

ONT - POA

ONTPOA

Ontario

Sun 10/19

7:05 am-6:25 am

2 stops19h 20m

$748

OntarioPorto Alegre

ONT - POA

ONTPOA

Ontario

Sat 9/20

6:04 am-2:30 pm

2 stops28h 26m

$954

OntarioPorto Alegre

ONT - POA

ONTPOA

Ontario

Fri 12/19

11:59 pm-2:30 pm

2 stops33h 31m

$1,384

OntarioPorto Alegre

ONT - POA

ONTPOA

Ontario

Sat 12/20

11:59 pm-2:35 pm

2 stops33h 36m

$1,514

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/10

Showing 1-10 of 11 results

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.

Related info for your journey

How long is the flight from Ontario to Porto Alegre?
Departing from Ontario to Porto Alegre will take you 27h 35m. Airlines will cover a distance of 6186 mi.
What are the cheapest airlines to fly from Ontario to Porto Alegre one-way?
$474 is the cheapest one-way deal found within the past few days, from Copa Airlines. You may also be able to find cheap deals on Delta and United Airlines, with prices starting from $704 and $710, respectively.
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.

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$474+ 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 10/20. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Ontario to Porto Alegre with Cheapflights

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Find flight deals from Ontario to Porto Alegre

Best flights from Ontario to Porto AlegreDiscover 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 September 11, 2025.

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 September 11, 2025.

Cheapflights Fare Finder

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

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.

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?

What are the cheapest airlines to fly from Ontario to Porto Alegre one-way?

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

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

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

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for Ontario to Porto Alegre

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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 September 11, 2025.