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Cheap flights from Ontario to Sao Paulo from $359

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 Sao Paulo departing on 3/18. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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0 bags

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Find the cheapest flights from Ontario to Sao Paulo

Cheap round-trip flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
11:02 pm - 5:40 am
ONT
-
GRU
25h 38m2 stops
Multiple Airlines Logo
8:55 am - 10:52 pm
GRU
-
ONT
18h 57m2 stops
$1,076Multiple Airlines
Tue, Jan 27 - Mon, Feb 2
Multiple Airlines Logo
11:02 pm - 5:40 am
ONT
-
GRU
25h 38m2 stops
Multiple Airlines Logo
3:55 am - 10:52 pm
GRU
-
ONT
23h 57m3 stops
$1,093Multiple Airlines
Tue, Jan 27 - Sun, Feb 1
United Airlines Logo
8:00 am - 9:30 am
ONT
-
GRU
20h 30m1 stop
United Airlines Logo
10:15 pm - 12:43 pm
GRU
-
ONT
19h 28m2 stops
$1,095United Airlines
Tue, Feb 10 - Wed, Feb 18
Multiple Airlines Logo
12:42 am - 5:40 am
ONT
-
GRU
24h 58m2 stops
Multiple Airlines Logo
8:55 am - 10:52 pm
GRU
-
ONT
17h 57m2 stops
$1,116Multiple Airlines
Thu, Mar 12 - Mon, Mar 23
Multiple Airlines Logo
12:42 am - 5:40 am
ONT
-
GRU
24h 58m2 stops
Multiple Airlines Logo
3:55 am - 10:52 pm
GRU
-
ONT
22h 57m3 stops
$1,127Multiple Airlines
Thu, Mar 12 - Sun, Mar 22
United Airlines Logo
6:00 am - 9:30 am
ONT
-
GRU
23h 30m1 stop
United Airlines Logo
10:20 pm - 6:02 pm
GRU
-
ONT
23h 42m2 stops
$1,135United Airlines
Fri, Mar 20 - Mon, Apr 6
United Airlines Logo
8:00 am - 9:30 am
ONT
-
GRU
20h 30m1 stop
United Airlines Logo
10:15 pm - 9:59 pm
GRU
-
ONT
28h 44m1 stop
$1,144United Airlines
Tue, Feb 17 - Sat, Feb 28
United Airlines Logo
1:45 pm - 9:30 am
ONT
-
GRU
38h 45m2 stops
United Airlines Logo
10:15 pm - 9:59 pm
GRU
-
ONT
28h 44m1 stop
$1,168United Airlines
Tue, Feb 17 - Sat, Feb 28
United Airlines Logo
6:00 am - 9:30 am
ONT
-
GRU
22h 30m1 stop
United Airlines Logo
10:25 pm - 12:47 pm
GRU
-
ONT
19h 22m2 stops
$1,170United Airlines
Mon, Jan 26 - Mon, Feb 9
United Airlines Logo
6:00 am - 9:30 am
ONT
-
GRU
23h 30m1 stop
United Airlines Logo
9:50 pm - 10:45 pm
GRU
-
ONT
28h 55m2 stops
$1,175United Airlines
Fri, Mar 20 - Sun, Apr 5

United Airlines flights from Ontario to Sao Paulo Guarulhos Intl Airport

Our best United Airlines deals on Ontario to Sao Paulo Guarulhos Intl Airport flight tickets
United Airlines
Feb 10
ONT8:00 amOntario
20h 30m
1 stop
GRU9:30 amSao Paulo Guarulhos Intl
Feb 18
GRU10:15 pmSao Paulo Guarulhos Intl
19h 28m
2 stops
ONT12:43 pmOntario
$1,095
Find similar
United Airlines
Mar 20
ONT6:00 amOntario
23h 30m
1 stop
GRU9:30 amSao Paulo Guarulhos Intl
Apr 6
GRU10:20 pmSao Paulo Guarulhos Intl
23h 42m
2 stops
ONT6:02 pmOntario
$1,135
Find similar
United Airlines
Feb 17
ONT8:00 amOntario
20h 30m
1 stop
GRU9:30 amSao Paulo Guarulhos Intl
Feb 28
GRU10:15 pmSao Paulo Guarulhos Intl
28h 44m
1 stop
ONT9:59 pmOntario
$1,144
Find similar

Avianca flights from Ontario to Sao Paulo Guarulhos Intl Airport

Our best Avianca deals on Ontario to Sao Paulo Guarulhos Intl Airport flight tickets
Avianca
Feb 14
ONT10:30 pmOntario
22h 05m
2 stops
GRU1:35 amSao Paulo Guarulhos Intl
Feb 21
GRU7:35 amSao Paulo Guarulhos Intl
18h 20m
2 stops
ONT8:55 pmOntario
$1,250
Find similar
Avianca
Feb 14
ONT10:30 pmOntario
22h 05m
3 stops
GRU1:35 amSao Paulo Guarulhos Intl
Feb 21
GRU7:35 amSao Paulo Guarulhos Intl
18h 20m
2 stops
ONT8:55 pmOntario
$1,266
Find similar
Avianca
Apr 16
ONT11:25 pmOntario
21h 15m
2 stops
GRU12:40 amSao Paulo Guarulhos Intl
May 2
GRU7:20 amSao Paulo Guarulhos Intl
18h 35m
2 stops
ONT9:55 pmOntario
$1,310
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from Ontario to Sao Paulo Guarulhos Intl Airport 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 December 21, 2025.
Use the filters below to find and compare flights from Ontario to Sao Paulo Guarulhos Intl Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

OntarioSao Paulo

ONT - GRU

ONTGRU

Ontario

Tue 1/27

11:02 pm-5:40 am

2 stops25h 38m

Sao Paulo Guarulhos Intl

Mon 2/2

8:55 am-10:52 pm

2 stops18h 57m

$1,076

OntarioSao Paulo

ONT - GRU

ONTGRU

Ontario

Tue 1/27

11:02 pm-5:40 am

2 stops25h 38m

Sao Paulo Guarulhos Intl

Sun 2/1

3:55 am-10:52 pm

3 stops23h 57m

$1,093

OntarioSao Paulo

ONT - GRU

ONTGRU

Ontario

Tue 2/10

8:00 am-9:30 am

1 stop20h 30m

Sao Paulo Guarulhos Intl

Wed 2/18

10:15 pm-12:43 pm

2 stops19h 28m

$1,095

OntarioSao Paulo

ONT - GRU

ONTGRU

Ontario

Thu 3/12

12:42 am-5:40 am

2 stops24h 58m

Sao Paulo Guarulhos Intl

Mon 3/23

8:55 am-10:52 pm

2 stops17h 57m

$1,116

OntarioSao Paulo

ONT - GRU

ONTGRU

Ontario

Thu 3/12

12:42 am-5:40 am

2 stops24h 58m

Sao Paulo Guarulhos Intl

Sun 3/22

3:55 am-10:52 pm

3 stops22h 57m

$1,127

OntarioSao Paulo

ONT - GRU

ONTGRU

Ontario

Fri 3/20

6:00 am-9:30 am

1 stop23h 30m

Sao Paulo Guarulhos Intl

Mon 4/6

10:20 pm-6:02 pm

2 stops23h 42m

$1,135

OntarioSao Paulo

ONT - GRU

ONTGRU

Ontario

Tue 2/17

8:00 am-9:30 am

1 stop20h 30m

Sao Paulo Guarulhos Intl

Sat 2/28

10:15 pm-9:59 pm

1 stop28h 44m

$1,144

OntarioSao Paulo

ONT - GRU

ONTGRU

Ontario

Tue 2/17

1:45 pm-9:30 am

2 stops38h 45m

Sao Paulo Guarulhos Intl

Sat 2/28

10:15 pm-9:59 pm

1 stop28h 44m

$1,168

OntarioSao Paulo

ONT - GRU

ONTGRU

Ontario

Mon 1/26

6:00 am-9:30 am

1 stop22h 30m

Sao Paulo Guarulhos Intl

Mon 2/9

10:25 pm-12:47 pm

2 stops19h 22m

$1,170

OntarioSao Paulo

ONT - GRU

ONTGRU

Ontario

Fri 3/20

6:00 am-9:30 am

1 stop23h 30m

Sao Paulo Guarulhos Intl

Sun 4/5

9:50 pm-10:45 pm

2 stops28h 55m

$1,175

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Sao Paulo from

How to get the cheapest flight ticket from Ontario to Sao Paulo Guarulhos Intl Airport

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 Sao Paulo Guarulhos Intl Airport?

On average, the least expensive day to fly to Sao Paulo Guarulhos Intl Airport from Ontario is on a Tuesday. momondo users have found tickets for Tuesday departures for as low as $678. However, this price may fluctuate depending on the airline, the season, and holidays. The most expensive day to fly to Sao Paulo Guarulhos Intl Airport is Saturday, with ticket prices averaging around $969.

What is the cheapest time of day to depart on your flight to Sao Paulo Guarulhos Intl Airport?

Our data shows that the cheapest Ontario to Sao Paulo Guarulhos Intl Airport flights are usually those with departure times at noon. Our users have found flights to Sao Paulo Guarulhos Intl Airport at noon for as low as $813. Flights in the morning are often more expensive with an average ticket price of $986.

When to book flights from Ontario to Sao Paulo Guarulhos Intl Airport

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

Cheap Ontario to Sao Paulo Guarulhos Intl Airport (ONT to GRU) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Ontario to Sao Paulo Guarulhos Intl Airport

Fastest flight time

17h 20m

Direct flights

None
The fastest flight from Ontario to Sao Paulo Guarulhos Intl Airport takes 17h 20m
There are no direct flights from Ontario to Sao Paulo Guarulhos Intl Airport. There are no popular flight routes from Ontario to Sao Paulo Guarulhos Intl Airport.
Search flight deals

  • How far is Ontario to Sao Paulo Guarulhos Intl by plane?

    Ontario and Sao Paulo Guarulhos Intl are 6124.9 mi apart from one another. In terms of flight time, this usually takes a little over 17h 20m.

  • When did momondo last update prices for flights from Ontario Airport to Sao Paulo Guarulhos Intl Airport?

    Prices for flights from Ontario Airport to Sao Paulo Guarulhos Intl Airport were last updated today.

  • How old do you have to be to fly from Ontario Airport to Sao Paulo Guarulhos Intl Airport?

    The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Ontario Airport to Sao Paulo Guarulhos Intl Airport.

  • What documentation or ID do you need to fly to Sao Paulo Guarulhos Intl Airport?

    The necessary travel and health documents for your Sao Paulo Guarulhos Intl Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

Traveling to a place near Sao Paulo?

Book flights to Sao Paulo if you plan to visit one of these locations
Guarulhos
Santos
Guarujá
Campinas
Aparecida

Why use momondo?

Why should I use momondo to find a flight deal from Ontario to Sao Paulo?

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from Ontario to Sao Paulo. Millions of users trust and use momondo every year so you are in good hands.

Can I find flights from Ontario to Sao Paulo with flexible booking policies on momondo?

All flight searches from Ontario to Sao Paulo on momondo can be filtered to show those which offer flexible booking policies.

How can momondo help me find flights from Ontario to Sao Paulo?

momondo helps you find the best flight between Ontario and Sao Paulo by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

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

If you are simply researching potential flights to Sao Paulo, momondo offers a useful price alert feature which will track prices for flights to Sao Paulo from Ontario and alert you when they change.

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