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Porto Alegre

$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 8/30. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — POA
ago. 4 — ago. 111
lun. 8/4
lun. 8/11
1 adult, Economy
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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 julio 30, 2025.

Round-trip from

$7,416
(KAYAK)

One-way from

$474
(Copa Airlines)

Popular in

December

Cheapest in

August

Average price

$604
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. 9% potential increase in price ($76 potential increase over avg. RT price).
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Cheapest flight prices on average. 4% potential price decrease ($29 potential savings vs. average RT price).
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Average for round-trip flights in July 2025
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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 julio 30, 2025.

This KAYAK deal was found by Cheapflights users on 7/29. 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.
mar. 12/912:00 pmONT - POA
2 stops21h 00mLATAM Airlines
vie. 1/96:20 pmPOA - ONT
2 stops22h 18mLATAM Airlines
Deal found 7/29$7,416

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 julio 30, 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

mar. 12/9

12:00 pm-2:00 pm

2 stops21h 00m

Porto Alegre Salgado Filho

vie. 1/9

6:20 pm-11:38 am

2 stops22h 18m

$7,416

OntarioPorto Alegre

ONT - POA

ONTPOA

Ontario

sáb. 8/30

6:50 pm-12:15 am

2 stops25h 25m

$474

OntarioPorto Alegre

ONT - POA

ONTPOA

Ontario

sáb. 8/30

7:00 am-2:30 pm

3 stops27h 30m

$761

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/29

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.

Reviews of airlines servicing Porto Alegre

Get insights into the airlines that provide service to Porto Alegre. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Porto Alegre. Reviews last updated julio 30, 2025.
Peruse reviews from past customers who have flown with LATAM Airlines and Copa Airlines from Ontario to Porto Alegre to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
LATAM Airlines
7.5
Good
1,822 reviews

Entertainment

7.0

Boarding

7.6

Overall

7.5

Food

6.7

Comfort

7.4

Crew

8.1

Reviews

1 / 20
4.0
Okay

Murilo,Jun 2025

SFO - LAX

I had mixed feelings regarding this flight. Called several times Latam and Delta regarding the purchase of checked baggage and price. I was told 80 dollars, could not buy it ahead of time,, they told me it was not Possible, that I had to buy at the airport. Check in my luggage the attendant says 80 dollars but I was charged 200 . No one could get me a solid answer why. Very disappointing
LATAM Airlines
7.5
Good
1,822 reviews
LATAM Airlines
7.5
Good
1,822 reviews

Entertainment

7.0

Boarding

7.6

Overall

7.5

Food

6.7

Comfort

7.4

Crew

8.1

Reviews

1 / 20
4.0
Okay

Murilo,Jun 2025

SFO - LAX

I had mixed feelings regarding this flight. Called several times Latam and Delta regarding the purchase of checked baggage and price. I was told 80 dollars, could not buy it ahead of time,, they told me it was not Possible, that I had to buy at the airport. Check in my luggage the attendant says 80 dollars but I was charged 200 . No one could get me a solid answer why. Very disappointing
Copa Airlines
7.5
Good
1,493 reviews
LATAM Airlines
7.5
Good
1,822 reviews

Entertainment

7.0

Boarding

7.6

Overall

7.5

Food

6.7

Comfort

7.4

Crew

8.1

Reviews

1 / 20
4.0
Okay

Murilo,Jun 2025

SFO - LAX

I had mixed feelings regarding this flight. Called several times Latam and Delta regarding the purchase of checked baggage and price. I was told 80 dollars, could not buy it ahead of time,, they told me it was not Possible, that I had to buy at the airport. Check in my luggage the attendant says 80 dollars but I was charged 200 . No one could get me a solid answer why. Very disappointing

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.

  • 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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