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Cheap flights from Ontario to Porto Alegre from $613

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 4/16. 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
0 bags
Travel Warning: Due to flooding, the airport may be currently closed. Check local travel advisories before booking.

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Find the cheapest flights from Ontario to Porto Alegre

Cheap round-trip flights

Enter your travel dates to find the best prices.
LATAM Airlines Logo
1:00 pm - 5:05 pmONT-POA
23h 05m2 stops
LATAM Airlines Logo
12:30 pm - 11:38 amPOA-ONT
28h 08m2 stops
$1,257LATAM Airlines
Find Deal
Sun, Mar 1 - Wed, Mar 4
LATAM Airlines Logo
1:00 pm - 5:05 pmONT-POA
23h 05m2 stops
LATAM Airlines Logo
12:30 pm - 11:38 amPOA-ONT
28h 08m2 stops
$1,258LATAM Airlines
Find Deal
Sun, Mar 1 - Wed, Mar 4
Delta Logo
1:00 pm - 2:05 pmONT-POA
20h 05m2 stops
Delta Logo
5:55 pm - 11:38 amPOA-ONT
22h 43m2 stops
$2,517Delta
Find Deal
Sun, Feb 22 - Wed, Mar 4
Delta Logo
1:00 pm - 2:05 pmONT-POA
20h 05m2 stops
Delta Logo
5:55 pm - 11:38 amPOA-ONT
22h 43m2 stops
$2,951Delta
Find Deal
Sat, Feb 21 - Wed, Mar 4
LATAM Airlines Logo
11:36 am - 2:05 pmONT-POA
21h 29m2 stops
LATAM Airlines Logo
8:10 pm - 11:06 amPOA-ONT
19h 56m2 stops
$7,252LATAM Airlines
Find Deal
Sun, Nov 2 - Sun, Nov 30
LATAM Airlines Logo
7:05 am - 9:15 amONT-POA
21h 10m2 stops
LATAM Airlines Logo
6:40 am - 11:23 pmPOA-ONT
21h 43m2 stops
$7,320LATAM Airlines
Find Deal
Sat, Dec 20 - Sat, Jan 3
LATAM Airlines Logo
12:16 pm - 2:05 pmONT-POA
20h 49m2 stops
LATAM Airlines Logo
5:55 pm - 10:52 amPOA-ONT
21h 57m2 stops
$9,846LATAM Airlines
Find Deal
Mon, Nov 10 - Wed, Nov 26

LATAM Airlines flights from Ontario to Porto Alegre

Our best LATAM Airlines deals on Ontario to Porto Alegre flight tickets
LATAM Airlines
Mar 1
ONT1:00 pmOntario
23h 05m
2 stops
POA5:05 pmPorto Alegre Salgado Filho
Mar 4
POA12:30 pmPorto Alegre Salgado Filho
28h 08m
2 stops
ONT11:38 amOntario
$1,257
Find similar
LATAM Airlines
Mar 1
ONT1:00 pmOntario
23h 05m
2 stops
POA5:05 pmPorto Alegre Salgado Filho
Mar 4
POA12:30 pmPorto Alegre Salgado Filho
28h 08m
2 stops
ONT11:38 amOntario
$1,258
Find similar
LATAM Airlines
Nov 2
ONT11:36 amOntario
21h 29m
2 stops
POA2:05 pmPorto Alegre Salgado Filho
Nov 30
POA8:10 pmPorto Alegre Salgado Filho
19h 56m
2 stops
ONT11:06 amOntario
$7,252
Find similar

Delta flights from Ontario to Porto Alegre

Our best Delta deals on Ontario to Porto Alegre flight tickets
Delta
Feb 22
ONT1:00 pmOntario
20h 05m
2 stops
POA2:05 pmPorto Alegre Salgado Filho
Mar 4
POA5:55 pmPorto Alegre Salgado Filho
22h 43m
2 stops
ONT11:38 amOntario
$2,517
Find similar
Delta
Feb 21
ONT1:00 pmOntario
20h 05m
2 stops
POA2:05 pmPorto Alegre Salgado Filho
Mar 4
POA5:55 pmPorto Alegre Salgado Filho
22h 43m
2 stops
ONT11:38 amOntario
$2,951
Find similar

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 October 22, 2025.
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

1:00 pm-5:05 pm

2 stops23h 05m

Porto Alegre Salgado Filho

Wed 3/4

12:30 pm-11:38 am

2 stops28h 08m

$1,257

OntarioPorto Alegre

ONT - POA

ONTPOA

Ontario

Sun 3/1

1:00 pm-5:05 pm

2 stops23h 05m

Porto Alegre Salgado Filho

Wed 3/4

12:30 pm-11:38 am

2 stops28h 08m

$1,258

OntarioPorto Alegre

ONT - POA

ONTPOA

Ontario

Sun 2/22

1:00 pm-2:05 pm

2 stops20h 05m

Porto Alegre Salgado Filho

Wed 3/4

5:55 pm-11:38 am

2 stops22h 43m

$2,517

OntarioPorto Alegre

ONT - POA

ONTPOA

Ontario

Sat 2/21

1:00 pm-2:05 pm

2 stops20h 05m

Porto Alegre Salgado Filho

Wed 3/4

5:55 pm-11:38 am

2 stops22h 43m

$2,951

OntarioPorto Alegre

ONT - POA

ONTPOA

Ontario

Sun 11/2

11:36 am-2:05 pm

2 stops21h 29m

Porto Alegre Salgado Filho

Sun 11/30

8:10 pm-11:06 am

2 stops19h 56m

$7,252

OntarioPorto Alegre

ONT - POA

ONTPOA

Ontario

Sat 12/20

7:05 am-9:15 am

2 stops21h 10m

Porto Alegre Salgado Filho

Sat 1/3

6:40 am-11:23 pm

2 stops21h 43m

$7,320

OntarioPorto Alegre

ONT - POA

ONTPOA

Ontario

Mon 11/10

12:16 pm-2:05 pm

2 stops20h 49m

Porto Alegre Salgado Filho

Wed 11/26

5:55 pm-10:52 am

2 stops21h 57m

$9,846

OntarioPorto Alegre

ONT - POA

ONTPOA

Ontario

Thu 4/16

7:00 am-4:10 pm

2 stops29h 10m

$613

OntarioPorto Alegre

ONT - POA

ONTPOA

Ontario

Mon 1/19

6:00 am-2:40 pm

2 stops27h 40m

$614

OntarioPorto Alegre

ONT - POA

ONTPOA

Ontario

Thu 11/20

7:00 am-2:20 pm

2 stops26h 20m

$869

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 12 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 day to depart on your flight to Porto Alegre?

Our data shows that Tuesday is the least expensive day to fly to Porto Alegre. Tickets to fly out on this day can be as low as $720. On the other hand, Saturday is the most expensive day to depart from Ontario because it is more convenient for both business and leisure travelers. As a result, prices tend to be around $995.

What is the cheapest time of day to depart on your flight to Porto Alegre?

Our most recent data shows that the best time of day to fly to Porto Alegre is in the morning. Flights from Ontario to Porto Alegre during this time can be as low as $741. If you have a flexible travel schedule, then try to avoid flying in the evening when prices are $927 on average. Flights to Porto Alegre from Ontario in the evening are generally more expensive because this time of day is more convenient for travelers’ schedules.

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

Direct flights

None
There are no direct flights from Ontario to Porto Alegre. There are no popular flight routes from Ontario to Porto Alegre.
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  • 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 20h 05m 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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