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Guarulhos Intl

$358+ Cheap flights from Ontario (ONT) to Guarulhos Intl, Brazil (GRU)

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 10/15. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — GRU
oct. 11 — oct. 181
sáb. 10/11
sáb. 10/18
1 adult, Economy
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Cheap flight deals from Ontario to Guarulhos Intl

Discover tips and strategies to find the most affordable flight options for your journey from Ontario (ONT) to Guarulhos Intl (GRU). 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 septiembre 11, 2025.

Round-trip from

$850
(Mytrip)

One-way from

$358
(Kiwi.com)

Popular in

December

Cheapest in

February

Average price

$545
From Ontario to Sao Paulo Guarulhos Intl
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One-way flight from Ontario to Sao Paulo Guarulhos Intl
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Highest demand for flights based on searches. 19% potential increase in price ($159 potential increase over avg. RT price).
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Cheapest flight prices on average. 6% potential price decrease ($42 potential savings vs. average RT price).
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Average for round-trip flights in September 2025
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Find flight deals from Ontario to Guarulhos Intl

Cheapest flights from Ontario to Guarulhos Intl
Explore the most affordable flight options available from Ontario to Guarulhos Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on septiembre 11, 2025.

This Mytrip deal was found by Cheapflights users on 9/10. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 10/49:11 pmONT - GRU
2 stops28h 24mMultiple Airlines
mar. 10/148:35 amGRU - ONT
2 stops18h 38mMultiple Airlines
Deal found 9/10$850
This Flysmarter deal was found by Cheapflights users on 9/10. 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 Flysmarter is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 10/2511:25 pmONT - GRU
2 stops22h 10mAvianca
vie. 10/311:20 amGRU - ONT
2 stops24h 35mAvianca
Deal found 9/10$1,051
This Mytrip deal was found by Cheapflights users on 9/10. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 9/1811:25 pmONT - GRU
3 stops26h 10mAvianca
lun. 9/291:45 amGRU - ONT
2 stops24h 10mAvianca
Deal found 9/10$1,054
This oojo deal was found by Cheapflights users on 9/11. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 10/1111:25 pmONT - GRU
2 stops22h 45mAvianca
mar. 10/217:20 amGRU - ONT
2 stops18h 35mAvianca
Deal found 9/11$1,083
This Priceline deal was found by Cheapflights users on 9/10. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 9/2011:25 pmONT - GRU
2 stops21h 15mAvianca
mar. 9/307:20 amGRU - ONT
2 stops18h 35mAvianca
Deal found 9/10$1,084
This Mytrip deal was found by Cheapflights users on 9/10. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 9/1311:25 pmONT - GRU
3 stops26h 10mAvianca
lun. 9/154:50 pmGRU - ONT
3 stops33h 05mAvianca
Deal found 9/10$1,086
This Mytrip deal was found by Cheapflights users on 9/10. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 10/2511:25 pmONT - GRU
3 stops27h 05mMultiple Airlines
vie. 10/312:40 amGRU - ONT
2 stops23h 15mMultiple Airlines
Deal found 9/10$1,087
This United Airlines deal was found by Cheapflights users on 9/11. 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.
jue. 11/207:00 amONT - GRU
1 stop19h 15mUnited Airlines
jue. 11/2710:15 pmGRU - ONT
2 stops19h 18mUnited Airlines
Deal found 9/11$1,094
This KAYAK deal was found by Cheapflights users on 9/10. 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.
lun. 11/311:36 amONT - GRU
1 stop16h 59mLATAM Airlines
mar. 11/1810:20 amGRU - ONT
2 stops17h 44mLATAM Airlines
Deal found 9/10$1,104

Cheapflights Fare Finder

 
Customize your flight search to find flights from Ontario to Guarulhos Intl 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 septiembre 11, 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

Ontario

Fly to

Guarulhos Intl

Route

Depart

Return

Price

OntarioSao Paulo

ONT - GRU

ONTGRU

Ontario

sáb. 10/11

11:25 pm-2:10 am

2 stops22h 45m

Sao Paulo Guarulhos Intl

mar. 10/21

7:20 am-9:55 pm

2 stops18h 35m

$1,083

OntarioSao Paulo

ONT - GRU

ONTGRU

Ontario

lun. 11/24

7:00 am-7:15 am

1 stop19h 15m

Sao Paulo Guarulhos Intl

dom. 12/7

10:15 pm-12:32 pm

2 stops19h 17m

$1,134

OntarioSao Paulo

ONT - GRU

ONTGRU

Ontario

lun. 1/19

7:00 am-7:15 am

1 stop19h 15m

Sao Paulo Guarulhos Intl

dom. 2/1

10:15 pm-12:14 pm

2 stops18h 59m

$1,134

OntarioSao Paulo

ONT - GRU

ONTGRU

Ontario

lun. 10/27

1:29 pm-9:30 am

2 stops16h 01m

Sao Paulo Guarulhos Intl

lun. 11/3

9:45 pm-6:36 pm

1 stop25h 51m

$1,165

OntarioSao Paulo

ONT - GRU

ONTGRU

Ontario

vie. 11/14

5:05 am-10:20 am

2 stops24h 15m

Sao Paulo Guarulhos Intl

vie. 11/28

10:15 pm-8:33 pm

2 stops27h 18m

$1,174

OntarioSao Paulo

ONT - GRU

ONTGRU

Ontario

sáb. 11/22

6:05 am-9:30 am

1 stop22h 25m

Sao Paulo Guarulhos Intl

dom. 11/30

10:15 pm-9:49 pm

1 stop28h 34m

$1,184

OntarioSao Paulo

ONT - GRU

ONTGRU

Ontario

vie. 11/21

5:05 am-9:30 am

2 stops47h 25m

Sao Paulo Guarulhos Intl

sáb. 12/6

10:15 pm-12:32 pm

2 stops19h 17m

$1,195

OntarioSao Paulo

ONT - GRU

ONTGRU

Ontario

jue. 10/2

6:36 pm-8:50 pm

2 stops22h 14m

$519

OntarioSao Paulo

ONT - GRU

ONTGRU

Ontario

mar. 9/16

6:50 pm-8:50 pm

2 stops22h 00m

$519

OntarioSao Paulo

ONT - GRU

ONTGRU

Ontario

sáb. 10/4

6:51 pm-8:50 pm

2 stops21h 59m

$519

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/10

Showing 1-10 of 17 results
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Best time to book a flight from Ontario to Guarulhos Intl

Have a flexible travel schedule? Discover the best time to fly to Guarulhos Intl 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 Sao Paulo Guarulhos Intl Airport

What is the cheapest month to book a flight from Ontario to Sao Paulo Guarulhos Intl Airport?

Currently, September is the cheapest month in which you can book a flight from Ontario to Sao Paulo Guarulhos Intl Airport (average of $677). Flying from Ontario to Sao Paulo Guarulhos Intl Airport in December is currently the most expensive (average of $1,209). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

Related info for your journey

Find useful and relevant information for your journey from Ontario to Guarulhos Intl. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly from for flights from Ontario to Sao Paulo Guarulhos Intl?

    Ontario (ONT) is the airport you will fly out of if you book a flight from Ontario to Sao Paulo Guarulhos Intl. You should not have trouble finding flights to Sao Paulo Guarulhos Intl from Ontario; the airport handles an average of 0 outbound flights to Sao Paulo Guarulhos Intl per day. You should also have plenty of airline options to choose from since 0 airlines have flights from the Ontario airport to Sao Paulo Guarulhos Intl. It is only a 3.1 mi journey to Ontario (ONT) from Ontario’s city center.

  • How long is the flight from Ontario to Sao Paulo Guarulhos Intl Airport?

    For as low as $1,134, Avianca can have you in Sao Paulo Guarulhos Intl Airport from Ontario in 19h 15m. The distance from Ontario to Sao Paulo Guarulhos Intl Airport is about 6122 mi. This flight may include one or multiple stops.

  • Can I find deals for flights from Ontario to Guarulhos Intl that include hotel bookings?

    Yes. In addition to deals on Ontario to Guarulhos Intl flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Ontario to Guarulhos Intl?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Ontario to Guarulhos Intl.

  • Can I find deals for business class flights from Ontario to Guarulhos Intl?

    Yes. Cheapflights offers flight deals from Ontario to Guarulhos Intl by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Ontario to Sao Paulo Guarulhos Intl Airport?

    Currently, September is the cheapest month in which you can book a flight from Ontario to Sao Paulo Guarulhos Intl Airport (average of $677). Flying from Ontario to Sao Paulo Guarulhos Intl Airport in December is currently the most expensive (average of $1,209). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Traveling to a place near Sao Paulo Guarulhos Intl Airport?

Book flights to Sao Paulo Guarulhos Intl Airport if you plan to visit one of these locations
Guarulhos

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