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$473+ Cheap flights from Guarulhos Intl, Brazil (GRU) to Ontario (ONT)

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 1/28. Fares are subject to change and may not be available on all flights or dates of travel.
GRU — ONT
Jan 22 — Jan 291
Thu 1/22
Thu 1/29
1 adult, Economy
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Cheap flight deals from Guarulhos Intl to Ontario

Cheapest flights from Guarulhos Intl to Ontario
Explore the most affordable flight options available from Guarulhos Intl to Ontario. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 23, 2025.

This Mytrip deal was found by Cheapflights users on 12/22. 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.
Wed 12/318:55 amGRU - ONT
2 stops18h 57mMultiple Airlines
Tue 1/612:42 amONT - GRU
3 stops34h 48mMultiple Airlines
Deal found 12/22$1,273
This Mytrip deal was found by Cheapflights users on 12/21. 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.
Wed 12/249:20 pmGRU - ONT
3 stops30h 32mMultiple Airlines
Tue 12/3012:42 amONT - GRU
2 stops23h 58mMultiple Airlines
Deal found 12/21$1,292
This United Airlines deal was found by Cheapflights users on 12/21. 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 12/3110:15 pmGRU - ONT
2 stops19h 23mUnited Airlines
Wed 1/78:00 amONT - GRU
1 stop20h 30mUnited Airlines
Deal found 12/21$1,306
This LATAM Airlines deal was found by Cheapflights users on 12/21. 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 LATAM Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/2310:40 amGRU - ONT
1 stop17h 43mLATAM Airlines
Tue 12/307:05 amONT - GRU
1 stop17h 35mLATAM Airlines
Deal found 12/21$1,314
This LATAM Airlines deal was found by Cheapflights users on 12/20. 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 LATAM Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/2310:40 amGRU - ONT
1 stop17h 43mLATAM Airlines
Mon 12/297:05 amONT - GRU
1 stop17h 35mLATAM Airlines
Deal found 12/20$1,318
This Mytrip deal was found by Cheapflights users on 12/22. 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.
Tue 12/308:55 amGRU - ONT
2 stops18h 57mMultiple Airlines
Mon 1/512:42 amONT - GRU
2 stops23h 58mMultiple Airlines
Deal found 12/22$1,356
This Mytrip deal was found by Cheapflights users on 12/21. 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.
Sun 12/287:45 pmGRU - ONT
3 stops27h 59mMultiple Airlines
Sat 1/312:42 amONT - GRU
3 stops34h 33mMultiple Airlines
Deal found 12/21$1,377
This Mytrip deal was found by Cheapflights users on 12/21. 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.
Wed 12/241:50 amGRU - ONT
3 stops26h 02mMultiple Airlines
Wed 12/3112:42 amONT - GRU
2 stops23h 58mMultiple Airlines
Deal found 12/21$1,380

Find flight deals from Guarulhos Intl to Ontario

Discover tips and strategies to find the most affordable flight options for your journey from Guarulhos Intl (GRU) to Ontario (ONT). 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 December 23, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$974
(Mytrip)

One-way from

$473
(Mytrip)

Popular in

July

Cheapest in

November

Average price

$734
Provider with most accurate pricing for Sao Paulo (SAO)-Los Angeles flight deals.
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Provider most trusted by Cheapflights users for Sao Paulo (SAO)-Los Angeles flights.
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From Sao Paulo Guarulhos Intl to Ontario
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One-way flight from Sao Paulo Guarulhos Intl to Ontario
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Highest demand for flights based on searches. 10% potential increase in price ($71 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($20 potential savings vs. average RT price).
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Average for round-trip flights in December 2025
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Cheapflights Fare Finder

 
Customize your flight search to find flights from Guarulhos Intl to Ontario 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 December 23, 2025.
Use the filters below to find and compare flights from Sao Paulo Guarulhos Intl Airport to Ontario that are best for you.

Fly from

Guarulhos Intl

Fly to

Ontario

Route

Depart

Return

Price

Sao PauloOntario

GRU - ONT

GRUONT

Sao Paulo Guarulhos Intl

Wed 1/28

11:59 pm-10:52 pm

3 stops27h 53m

Ontario

Tue 2/3

12:42 am-9:15 am

3 stops27h 33m

$982

Sao PauloOntario

GRU - ONT

GRUONT

Sao Paulo Guarulhos Intl

Wed 5/6

9:50 pm-12:22 pm

2 stops18h 32m

Ontario

Sun 5/17

6:05 am-6:30 am

1 stop20h 25m

$1,067

Sao PauloOntario

GRU - ONT

GRUONT

Sao Paulo Guarulhos Intl

Thu 2/12

11:45 pm-12:02 pm

1 stop17h 17m

Ontario

Wed 2/25

1:15 pm-9:35 am

1 stop15h 20m

$1,080

Sao PauloOntario

GRU - ONT

GRUONT

Sao Paulo Guarulhos Intl

Mon 1/26

8:55 am-10:52 pm

2 stops18h 57m

Ontario

Sun 2/1

12:42 am-5:40 am

2 stops23h 58m

$1,112

Sao PauloOntario

GRU - ONT

GRUONT

Sao Paulo Guarulhos Intl

Thu 2/12

7:45 pm-10:52 pm

3 stops32h 07m

Ontario

Tue 2/24

12:42 am-5:40 am

2 stops23h 58m

$1,138

Sao PauloOntario

GRU - ONT

GRUONT

Sao Paulo Guarulhos Intl

Tue 5/5

9:50 pm-12:22 pm

2 stops18h 32m

Ontario

Fri 5/8

5:05 am-6:30 am

2 stops21h 25m

$1,151

Sao PauloOntario

GRU - ONT

GRUONT

Sao Paulo Guarulhos Intl

Fri 2/27

10:15 pm-12:47 pm

2 stops19h 32m

Ontario

Sat 3/21

5:15 am-9:30 am

2 stops24h 15m

$1,159

Sao PauloOntario

GRU - ONT

GRUONT

Sao Paulo Guarulhos Intl

Fri 2/27

9:30 pm-12:43 pm

2 stops20h 13m

Ontario

Tue 3/3

5:00 am-7:15 am

2 stops21h 15m

$1,176

Sao PauloOntario

GRU - ONT

GRUONT

Sao Paulo Guarulhos Intl

Thu 5/21

10:50 pm-11:20 am

1 stop16h 30m

$586

Sao PauloOntario

GRU - ONT

GRUONT

Sao Paulo Guarulhos Intl

Fri 5/22

9:50 pm-12:33 pm

2 stops18h 43m

$615

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/22

Showing 1-10 of 18 results
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Best time to book a flight from Guarulhos Intl to Ontario

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

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

Currently, November is the cheapest month in which you can book a flight from Sao Paulo Guarulhos Intl Airport to Ontario (average of $293). Flying from Sao Paulo Guarulhos Intl Airport to Ontario in February is currently the most expensive (average of $438). 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 Guarulhos Intl to Ontario. 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 into for flights to Ontario from Sao Paulo Guarulhos Intl?

    Located just 3.1 mi from the city center, Ontario is the airport most travelers will use when flying to Ontario from Sao Paulo Guarulhos Intl. Booking flights from Sao Paulo Guarulhos Intl to Ontario (ONT) should be relatively easy as there are 0 daily inbound flights from Sao Paulo Guarulhos Intl from 0 different airlines.

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

    Airlines like United Airlines and Delta fly from Sao Paulo Guarulhos Intl Airport to Ontario in about 17h 17m. The time it takes to get you to your destination can typically vary by up to 1h 15m. The distance between Sao Paulo Guarulhos Intl Airport and Ontario is about 6122 mi. This flight may include one or multiple stops.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Guarulhos Intl to Ontario 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 Sao Paulo Guarulhos Intl Airport to Ontario?

    Currently, November is the cheapest month in which you can book a flight from Sao Paulo Guarulhos Intl Airport to Ontario (average of $293). Flying from Sao Paulo Guarulhos Intl Airport to Ontario in February is currently the most expensive (average of $438). 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.

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