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$503+ 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 1/24. Fares are subject to change and may not be available on all flights or dates of travel.
GRU — ONT
ene. 30 — feb. 61
vie. 1/30
vie. 2/6
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 diciembre 31, 2025.

This United Airlines deal was found by Cheapflights users on 12/29. 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.
mar. 12/3010:15 pmGRU - ONT
2 stops19h 23mUnited Airlines
mar. 1/68:00 amONT - GRU
1 stop20h 30mUnited Airlines
Deal found 12/29$1,395
This United Airlines deal was found by Cheapflights users on 12/28. 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.
lun. 12/2910:15 pmGRU - ONT
2 stops19h 23mUnited Airlines
lun. 1/56:10 amONT - GRU
1 stop22h 20mUnited Airlines
Deal found 12/28$1,750
This LATAM Airlines deal was found by Cheapflights users on 12/29. 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.
mar. 12/3010:40 amGRU - ONT
1 stop17h 43mLATAM Airlines
dom. 1/47:05 amONT - GRU
1 stop17h 35mLATAM Airlines
Deal found 12/29$1,970
This FlightHub deal was found by Cheapflights users on 12/28. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 12/2910:40 amGRU - ONT
1 stop17h 43mLATAM Airlines
lun. 1/512:41 pmONT - GRU
1 stop15h 54mLATAM Airlines
Deal found 12/28$2,035
This Booking.com deal was found by Cheapflights users on 12/29. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 12/292:40 amGRU - ONT
2 stops23h 15mAvianca
mar. 1/610:30 pmONT - GRU
2 stops22h 05mAvianca
Deal found 12/29$2,183
This LATAM Airlines deal was found by Cheapflights users on 12/29. 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.
mar. 12/3010:40 amGRU - ONT
1 stop17h 43mLATAM Airlines
mar. 1/612:41 pmONT - GRU
1 stop15h 54mLATAM Airlines
Deal found 12/29$2,515
This Booking.com deal was found by Cheapflights users on 12/29. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 12/292:40 amGRU - ONT
2 stops23h 15mAvianca
dom. 1/410:30 pmONT - GRU
2 stops22h 05mAvianca
Deal found 12/29$3,085
This LATAM Airlines deal was found by Cheapflights users on 12/29. 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.
mar. 12/3010:40 amGRU - ONT
1 stop17h 43mLATAM Airlines
jue. 1/17:05 amONT - GRU
1 stop17h 35mLATAM Airlines
Deal found 12/29$8,097

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 diciembre 31, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$903
(Mytrip)

One-way from

$503
(Mytrip)

Popular in

July

Cheapest in

November

Average price

$732
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
Search Deals
Highest demand for flights based on searches. 10% potential increase in price ($72 potential increase over avg. RT price).
Search Deals
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 diciembre 31, 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

jue. 1/29

8:55 am-10:52 pm

2 stops18h 57m

Ontario

mié. 2/4

12:42 am-5:40 am

2 stops23h 58m

$1,008

Sao PauloOntario

GRU - ONT

GRUONT

Sao Paulo Guarulhos Intl

lun. 3/23

9:45 pm-12:18 pm

2 stops18h 33m

Ontario

jue. 4/30

5:05 am-6:30 am

2 stops21h 25m

$1,083

Sao PauloOntario

GRU - ONT

GRUONT

Sao Paulo Guarulhos Intl

mié. 1/14

5:45 pm-10:52 pm

3 stops34h 07m

Ontario

mar. 1/20

12:42 am-7:25 am

3 stops25h 43m

$1,121

Sao PauloOntario

GRU - ONT

GRUONT

Sao Paulo Guarulhos Intl

vie. 3/20

10:15 pm-10:25 pm

1 stop28h 10m

Ontario

lun. 4/20

6:00 am-6:45 am

1 stop20h 45m

$1,123

Sao PauloOntario

GRU - ONT

GRUONT

Sao Paulo Guarulhos Intl

vie. 2/27

10:25 pm-8:50 pm

2 stops27h 25m

Ontario

mar. 3/3

8:00 am-9:30 am

1 stop20h 30m

$1,181

Sao PauloOntario

GRU - ONT

GRUONT

Sao Paulo Guarulhos Intl

lun. 3/2

9:30 pm-5:41 pm

3 stops25h 11m

Ontario

dom. 3/8

6:00 am-9:30 am

1 stop23h 30m

$1,183

Sao PauloOntario

GRU - ONT

GRUONT

Sao Paulo Guarulhos Intl

lun. 4/27

9:50 pm-12:14 pm

2 stops18h 24m

$578

Sao PauloOntario

GRU - ONT

GRUONT

Sao Paulo Guarulhos Intl

lun. 4/27

10:50 pm-6:28 pm

1 stop23h 38m

$578

Sao PauloOntario

GRU - ONT

GRUONT

Sao Paulo Guarulhos Intl

lun. 5/18

10:20 pm-5:47 pm

2 stops23h 27m

$579

Sao PauloOntario

GRU - ONT

GRUONT

Sao Paulo Guarulhos Intl

mar. 5/19

10:50 pm-11:20 am

1 stop16h 30m

$579

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/29

Showing 1-10 of 17 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 fly from Sao Paulo Guarulhos Intl Airport to Ontario in about 18h 33m. The time it takes to get you to your destination can typically vary by up to . The distance between Sao Paulo Guarulhos Intl Airport and Ontario is about 6122 mi.

  • 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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