$578+ 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 5/29. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — POA
May 25 — Jun 11
1 adult, Economy
We work with more than 300 partners to bring you better travel deals
Find cheap flights from Ontario to Porto Alegre with Cheapflights
1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.3. Compare prices and book
Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.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 May 20, 2025.
Most accurate provider | AranGrant 3 stars |
|---|---|
Most trusted provider | AranGrant 3 stars |
Popular in | December |
Cheapest in | March |
Average price | $622 |
Find flight deals from Ontario to Porto Alegre
One-way flights from Ontario to Porto AlegreSearch for one-way flight options from Ontario to Porto Alegre. Find affordable one-way fares based on user searches. Data last updated May 20, 2025.
Search for one-way flight options from Ontario to Porto Alegre. Find affordable one-way fares based on user searches. Data last updated May 20, 2025.
This Delta deal was found by Cheapflights users on 5/19. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/297:05 amONT - POA
2 stops43h 20mDelta
Deal found 5/19![Delta logo]()
$578
This United Airlines deal was found by Cheapflights users on 5/20. 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.
Wed 5/287:00 amONT - POA
3 stops31h 05mUnited Airlines
Deal found 5/20![United Airlines logo]()
$584
This United deal was found by Cheapflights users on 5/20. 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/27:00 amONT - POA
3 stops45h 45mMultiple Airlines
Deal found 5/20![Multiple Airlines logo]()
$915
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 May 20, 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
Thu 5/29
7:05 am-6:25 am
2 stops43h 20m
$578
OntarioPorto Alegre
ONT - POA
ONTPOA
Ontario
Wed 5/28
7:00 am-6:05 pm
3 stops31h 05m
$584
OntarioPorto Alegre
ONT - POA
ONTPOA
Ontario
Mon 6/2
7:00 am-8:45 am
3 stops45h 45m
$915
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
Rainfall in Porto Alegre by month
Plan your trip to Porto Alegre by taking into account the average rainfall totals by month.
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.
Temperature in Porto Alegre by month
Plan your trip to Porto Alegre by taking into account the average temperature totals by month.
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).
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 May 20, 2025.
Comfort
7.9
Entertainment
7.9
Crew
8.5
Food
7.3
Boarding
8.2
Overall
8.0
Reviews
1 / 20
10.0
ExcellentAaron,Oct 2024
LAX - LHR
Comfort
7.9
Entertainment
7.9
Crew
8.5
Food
7.3
Boarding
8.2
Overall
8.0
Reviews
1 / 20
10.0
ExcellentAaron,Oct 2024
LAX - LHR
Comfort
7.9
Entertainment
7.9
Crew
8.5
Food
7.3
Boarding
8.2
Overall
8.0
Reviews
1 / 20
10.0
ExcellentAaron,Oct 2024
LAX - LHR