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Cheap flights from Ontario to Porto Alegre from $692

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Ontario to Porto Alegre departing on 6/27. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
1 adult, Economy, 0 bags
Travel Warning: Due to flooding, the airport may be currently closed. Check local travel advisories before booking.

Find the cheapest flights from Ontario to Porto Alegre

Cheap round-trip flights

Enter your travel dates to find the best prices.
United Airlines Logo
5:45 am - 3:40 pm
ONT
-
POA
29h 55m
2 stops
United Airlines Logo
3:45 pm - 9:55 pm
POA
-
ONT
34h 10m
2 stops
$1,443United Airlines
Wed, Jul 1 - Wed, Jul 15
United Airlines Logo
7:00 am - 3:25 pm
ONT
-
POA
27h 25m
2 stops
United Airlines Logo
5:10 pm - 9:21 pm
POA
-
ONT
33h 11m
2 stops
$1,502United Airlines
Sat, Nov 28 - Wed, Dec 2
United Airlines Logo
1:50 pm - 9:50 am
ONT
-
POA
64h 00m
3 stops
United Airlines Logo
3:45 pm - 9:55 pm
POA
-
ONT
34h 10m
2 stops
$1,507United Airlines
Wed, Jul 1 - Wed, Jul 15
Multiple Airlines Logo
11:35 pm - 6:20 am
ONT
-
POA
26h 45m
3 stops
Multiple Airlines Logo
7:05 pm - 9:45 pm
POA
-
ONT
30h 40m
3 stops
$1,578Multiple Airlines
Tue, Jun 23 - Wed, Jul 1
United Airlines Logo
7:00 am - 3:25 pm
ONT
-
POA
27h 25m
2 stops
United Airlines Logo
5:10 pm - 9:21 pm
POA
-
ONT
33h 11m
2 stops
$1,651United Airlines
Sat, Nov 28 - Wed, Dec 2
United Airlines Logo
7:00 am - 10:35 am
ONT
-
POA
22h 35m
2 stops
United Airlines Logo
5:10 pm - 9:21 pm
POA
-
ONT
33h 11m
2 stops
$1,697United Airlines
Sat, Nov 28 - Wed, Dec 2
GOL Logo
2:22 pm - 3:40 pm
ONT
-
POA
21h 18m
2 stops
GOL Logo
6:25 pm - 10:08 am
POA
-
ONT
20h 43m
2 stops
$6,983GOL
Wed, Oct 7 - Tue, Jan 5

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United Airlines flights from Ontario to Porto Alegre

Our best United Airlines deals on Ontario to Porto Alegre flight tickets
United Airlines
Jul 1
ONT5:45 amOntario
29h 55m
2 stops
POA3:40 pmPorto Alegre Salgado Filho
Jul 15
POA3:45 pmPorto Alegre Salgado Filho
34h 10m
2 stops
ONT9:55 pmOntario
$1,443
United Airlines
Nov 28
ONT7:00 amOntario
27h 25m
2 stops
POA3:25 pmPorto Alegre Salgado Filho
Dec 2
POA5:10 pmPorto Alegre Salgado Filho
33h 11m
2 stops
ONT9:21 pmOntario
$1,502
United Airlines
Jul 1
ONT1:50 pmOntario
64h 00m
3 stops
POA9:50 amPorto Alegre Salgado Filho
Jul 15
POA3:45 pmPorto Alegre Salgado Filho
34h 10m
2 stops
ONT9:55 pmOntario
$1,507

momondo 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, momondo users made 832,500 searches. Data last updated June 13, 2026.
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

Cheapest round-trip

OntarioPorto Alegre

ONT - POA

ONTPOA

Ontario

Wed 7/1

5:45 am-3:40 pm

2 stops29h 55m

Porto Alegre Salgado Filho

Wed 7/15

3:45 pm-9:55 pm

2 stops34h 10m

$1,443

OntarioPorto Alegre

ONT - POA

ONTPOA

Ontario

Sat 11/28

7:00 am-3:25 pm

2 stops27h 25m

Porto Alegre Salgado Filho

Wed 12/2

5:10 pm-9:21 pm

2 stops33h 11m

$1,502

OntarioPorto Alegre

ONT - POA

ONTPOA

Ontario

Wed 7/1

1:50 pm-9:50 am

3 stops64h 00m

Porto Alegre Salgado Filho

Wed 7/15

3:45 pm-9:55 pm

2 stops34h 10m

$1,507

OntarioPorto Alegre

ONT - POA

ONTPOA

Ontario

Tue 6/23

11:35 pm-6:20 am

3 stops26h 45m

Porto Alegre Salgado Filho

Wed 7/1

7:05 pm-9:45 pm

3 stops30h 40m

$1,578

OntarioPorto Alegre

ONT - POA

ONTPOA

Ontario

Sat 11/28

7:00 am-3:25 pm

2 stops27h 25m

Porto Alegre Salgado Filho

Wed 12/2

5:10 pm-9:21 pm

2 stops33h 11m

$1,651

OntarioPorto Alegre

ONT - POA

ONTPOA

Ontario

Sat 11/28

7:00 am-10:35 am

2 stops22h 35m

Porto Alegre Salgado Filho

Wed 12/2

5:10 pm-9:21 pm

2 stops33h 11m

$1,697
Quickest round-trip

OntarioPorto Alegre

ONT - POA

ONTPOA

Ontario

Wed 10/7

2:22 pm-3:40 pm

2 stops21h 18m

Porto Alegre Salgado Filho

Tue 1/5

6:25 pm-10:08 am

2 stops20h 43m

$6,983
Cheapest one-way

OntarioPorto Alegre

ONT - POA

ONTPOA

Ontario

Sat 6/27

9:36 pm-6:20 am

3 stops28h 44m

$692
Quickest one-way

OntarioPorto Alegre

ONT - POA

ONTPOA

Ontario

Tue 7/14

11:48 am-6:15 pm

2 stops26h 27m

$818

OntarioPorto Alegre

ONT - POA

ONTPOA

Ontario

Thu 7/16

5:45 am-2:20 pm

2 stops28h 35m

$832

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 17 resultsSorted by cheapest first
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See travel insights to Porto Alegre from

How to get the cheapest flight ticket from Ontario to Porto Alegre

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest airline that flies from Ontario to Porto Alegre Salgado Filho?

United Airlines is the most popular carrier operating from Ontario to Porto Alegre Salgado Filho

What airlines fly to Porto Alegre?

Copa Airlines, LATAM Airlines and United Airlines are the top three most popular airlines that fly to Porto Alegre from Ontario according to our data. Copa Airlines is the first choice among our users, with 62% of people opting to fly with this airline when traveling to Porto Alegre. Keep in mind that there are 3 different airlines that fly to Porto Alegre on a routine basis, so you have a few additional options to choose from.

When to book flights from Ontario to Porto Alegre

Are you open to changing your travel dates? Check out the ideal times to fly from Ontario to Porto Alegre according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Ontario to Porto Alegre (ONT to POA) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Ontario to Porto Alegre

Fastest flight time

27h 25m

Direct flights

None
The fastest flight from Ontario to Porto Alegre takes 27h 25m
There are no direct flights from Ontario to Porto Alegre. There are no popular flight routes from Ontario to Porto Alegre.
Search flight deals

Frequently asked questions about flying from Ontario to Porto Alegre

  • How far is Ontario to Porto Alegre Salgado Filho by plane?

    Porto Alegre Salgado Filho is 6188.5 mi away from Ontario. Typically, this will take 27h 25m by plane in normal conditions.

  • When did momondo last update prices for flights from Ontario Airport to Porto Alegre Salgado Filho Airport?

    Prices for flights from Ontario Airport to Porto Alegre Salgado Filho Airport are updated daily.

  • How old do you have to be to fly from Ontario Airport to Porto Alegre Salgado Filho Airport?

    Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Ontario Airport to Porto Alegre Salgado Filho Airport.

  • What documentation or ID do you need to fly to Porto Alegre Salgado Filho Airport?

    The travel and health documents you'll need for your trip to Porto Alegre Salgado Filho Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Porto Alegre Salgado Filho Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

Why use momondo?

Why should I use momondo to find a flight deal from Ontario to Porto Alegre?

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from Ontario to Porto Alegre for you.

Can I find flights from Ontario to Porto Alegre with flexible booking policies on momondo?

Yes. All flights to Porto Alegre from Ontario on momondo can be compared and filtered by various policies on offer, including flexible booking.

How can momondo help me find flights from Ontario to Porto Alegre?

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to Porto Alegre from Ontario.

I’m not ready to book a flight from Ontario to Porto Alegre right now. Can momondo alert me if prices change?

Yes momondo offers price alerts on flights to Porto Alegre from Ontario. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.

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