HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Sao Paulo

$476+ Cheap flights from Ontario (ONT) to Sao Paulo, Brazil (SAO)

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 5/1. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — SAO
Apr 2 — Apr 91
Wed 4/2
Wed 4/9
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Ontario to Sao Paulo with Cheapflights

1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”
2. Select your favorite providers
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.
3. Compare prices and book
Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheap flight deals from Ontario to Sao Paulo

Discover tips and strategies to find the most affordable flight options for your journey from Ontario (ONT) to Sao Paulo (SAO). 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 March 28, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$963
(United Airlines)

One-way from

$476
(Priceline)

Popular in

December

Cheapest in

February

Average price

$613
Provider with most accurate pricing for Ontario-Sao Paulo (SAO) flight deals.
Search Deals
Provider most trusted by Cheapflights users for Ontario-Sao Paulo (SAO) flights.
Search Deals
From Ontario to Sao Paulo (SAO)
Search Deals
One-way flight from Ontario to Sao Paulo (SAO)
Search Deals
Highest demand for flights based on searches. 14% potential increase in price ($122 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 5% potential price decrease ($39 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in March 2025
Search Deals

Find flight deals from Ontario to Sao Paulo

Cheapest flights from Ontario to Sao Paulo
Explore the most affordable flight options available from Ontario to Sao Paulo. Find the lowest fares from popular airlines and budget airlines, with prices last updated on March 28, 2025.

This United Airlines deal was found by Cheapflights users on 3/27. 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.
Mon 4/286:10 amONT - GRU
1 stop21h 25mUnited Airlines
Thu 5/89:50 pmGRU - ONT
2 stops18h 48mUnited Airlines
Deal found 3/27$963
This Priceline deal was found by Cheapflights users on 3/27. 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.
Sun 6/111:25 pmONT - GRU
2 stops22h 45mAvianca
Wed 6/44:50 pmGRU - ONT
2 stops33h 05mAvianca
Deal found 3/27$992
This American Airlines deal was found by Cheapflights users on 3/26. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/1812:56 pmONT - GRU
2 stops18h 29mAmerican Airlines
Tue 12/2311:00 pmGRU - ONT
1 stop29h 48mAmerican Airlines
Deal found 3/26$1,390
This business-class.com deal was found by Cheapflights users on 3/27. 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 business-class.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/1511:25 pmONT - GRU
2 stops20h 45mMultiple Airlines
Mon 4/283:10 amGRU - ONT
2 stops22h 45mMultiple Airlines
Deal found 3/27$4,743
This Delta deal was found by Cheapflights users on 3/26. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/47:00 amONT - GRU
1 stop18h 40mDelta
Fri 9/1210:05 amGRU - ONT
1 stop16h 24mDelta
Deal found 3/26$6,109

Cheapflights Fare Finder

Customize your flight search to find flights from Ontario to Sao Paulo 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 March 28, 2025.
Use the filters below to find and compare flights from Ontario to Sao Paulo that are best for you.

Fly from

Ontario

Fly to

Sao Paulo

Route

Depart

Return

Price

OntarioSao Paulo

ONT - GRU

ONTGRU

Ontario

Mon 4/28

6:10 am-7:35 am

1 stop21h 25m

Sao Paulo Guarulhos Intl

Thu 5/8

9:50 pm-12:38 pm

2 stops18h 48m

$963

OntarioSao Paulo

ONT - GRU

ONTGRU

Ontario

Sun 6/1

11:25 pm-2:10 am

2 stops22h 45m

Sao Paulo Guarulhos Intl

Wed 6/4

4:50 pm-9:55 pm

2 stops33h 05m

$992

OntarioSao Paulo

ONT - GRU

ONTGRU

Ontario

Tue 4/15

11:25 pm-12:10 am

2 stops20h 45m

Sao Paulo Guarulhos Intl

Mon 4/28

3:10 am-9:55 pm

2 stops22h 45m

$4,743

OntarioSao Paulo

ONT - GRU

ONTGRU

Ontario

Thu 5/1

11:25 pm-12:40 am

2 stops21h 15m

$476

OntarioSao Paulo

ONT - GRU

ONTGRU

Ontario

Fri 4/18

6:39 pm-8:50 pm

2 stops22h 11m

$489

OntarioSao Paulo

ONT - GRU

ONTGRU

Ontario

Fri 5/2

9:23 pm-2:15 am

3 stops24h 52m

$500

OntarioSao Paulo

ONT - GRU

ONTGRU

Ontario

Wed 4/16

6:10 am-7:35 am

1 stop21h 25m

$518

OntarioSao Paulo

ONT - GRU

ONTGRU

Ontario

Wed 4/9

7:05 am-9:15 am

2 stops22h 10m

$598

OntarioSao Paulo

ONT - GRU

ONTGRU

Ontario

Thu 5/22

10:00 pm-5:40 am

1 stop27h 40m

$2,020

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/27

Compare providers for flights from Ontario to Sao Paulo

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Ontario to Sao Paulo in March.
ProviderPrice AccuracyTrust Score*
eDreamsPrice Accuracy3 starsTrust Score*3 stars
AranGrantPrice Accuracy3 starsTrust Score*1 star
FlightHubPrice Accuracy3 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Ontario-Sao Paulo flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Ontario-Sao Paulo flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Ontario-Sao Paulo flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Ontario-Sao Paulo flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Ontario-Sao Paulo flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Ontario to Sao Paulo

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

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

Currently, October is the cheapest month in which you can book a flight from Ontario to Sao Paulo (average of $691). Flying from Ontario to Sao Paulo 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.

Rainfall in Sao Paulo by month

Plan your trip to Sao Paulo by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Sao Paulo ranges from 0.8 - 9.4 inches per month. January is typically the wettest month, when rainfall can reach 9.4 in. July is typically the driest time to visit Sao Paulo when rainfall is around 0.8 in.

Temperature in Sao Paulo by month

Plan your trip to Sao Paulo by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Sao Paulo, use this chart to help with planning. For those seeking warmer temperatures, January is the ideal time of year to visit, when temperatures reach an average of 73.4 F. Travelers looking to avoid the cold should look outside of June, when temperatures are typically at their lowest (around 62.6 F).

Reviews of airlines servicing Sao Paulo

Get insights into the airlines that provide service to Sao Paulo. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Sao Paulo. Reviews last updated March 28, 2025.
Read reviews from past customers who have flown Delta, Copa Airlines and United Airlines from Ontario to Sao Paulo. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,896 reviews

Overall

8.0

Food

7.3

Boarding

8.2

Comfort

8.0

Entertainment

7.9

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
Delta
8.0
Very good
7,896 reviews
Delta
8.0
Very good
7,896 reviews

Overall

8.0

Food

7.3

Boarding

8.2

Comfort

8.0

Entertainment

7.9

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
Copa Airlines
7.5
Good
1,395 reviews
Delta
8.0
Very good
7,896 reviews

Overall

8.0

Food

7.3

Boarding

8.2

Comfort

8.0

Entertainment

7.9

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
United Airlines
7.4
Good
8,603 reviews
Delta
8.0
Very good
7,896 reviews

Overall

8.0

Food

7.3

Boarding

8.2

Comfort

8.0

Entertainment

7.9

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
Air Canada
7.0
Good
8,986 reviews
Delta
8.0
Very good
7,896 reviews

Overall

8.0

Food

7.3

Boarding

8.2

Comfort

8.0

Entertainment

7.9

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
Avianca
6.7
Okay
2,300 reviews
Delta
8.0
Very good
7,896 reviews

Overall

8.0

Food

7.3

Boarding

8.2

Comfort

8.0

Entertainment

7.9

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Related info for your journey

Find useful and relevant information for your journey from Ontario to Sao Paulo. 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?

    Ontario (ONT) is the airport you will fly out of if you book a flight from Ontario to Sao Paulo. You should not have trouble finding flights to Sao Paulo from Ontario; the airport handles an average of 0 outbound flights to Sao Paulo 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. It is only a 3.1 mi journey to Ontario (ONT) from Ontario’s city center.

  • What are the cheapest airlines to fly from Ontario to Sao Paulo one-way?

    $476 is the cheapest one-way deal found within the past few days, from Avianca. You may also be able to find cheap deals on Copa Airlines and United Airlines, with prices starting from $489 and $518, respectively.

  • Can I find deals for flights from Ontario to Sao Paulo that include hotel bookings?

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

  • How can I find direct flights from Ontario to Sao Paulo?

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

  • Can I find deals for business class flights from Ontario to Sao Paulo?

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

    Currently, October is the cheapest month in which you can book a flight from Ontario to Sao Paulo (average of $691). Flying from Ontario to Sao Paulo 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 Ontario?

Book flights to Ontario if you plan to visit one of these locations
Santos

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Ontario to Sao Paulo

See prices for flight routes from nearby airports that may be better suited for you.
Los Angeles to Guarulhos Intl flights
San Francisco to Guarulhos Intl flights
Las Vegas to Guarulhos Intl flights
San Francisco to Viracopos flights
Las Vegas to Viracopos flights
Los Angeles to Viracopos flights
Los Angeles to Congonhas flights
Las Vegas to Congonhas flights
Ontario to Guarulhos Intl flights
San Francisco to Congonhas flights
San Diego to Guarulhos Intl flights
San Jose to Guarulhos Intl flights
Sacramento to Guarulhos Intl flights
Fresno to Guarulhos Intl flights
Santa Ana to Guarulhos Intl flights
Burbank to Guarulhos Intl flights
Oakland to Guarulhos Intl flights
Sacramento to Viracopos flights
Long Beach to Guarulhos Intl flights
Reno to Guarulhos Intl flights
San Francisco to São José do Rio Preto flights
Los Angeles to São José do Rio Preto flights
100% Free
Cheapflights is completely free to use, so you can start saving the moment you arrive.
Book with Flexibility
Our users can plan ahead with confidence and find flights with no change fees
Travel Smart
Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.