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Cheap flights from Ontario to Sao Paulo from $519

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 10/2. 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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Find the cheapest flights from Ontario to Sao Paulo

Cheap round-trip flights

United Airlines Logo
7:00 am - 7:15 amONT-GRU
19h 15m1 stop
United Airlines Logo
9:45 pm - 3:21 pmGRU-ONT
22h 36m1 stop
$1,090United Airlines
Find Deal
Mon, Nov 17 - Wed, Nov 26
United Airlines Logo
5:05 am - 7:50 amONT-GRU
21h 45m2 stops
United Airlines Logo
9:45 pm - 3:21 pmGRU-ONT
22h 36m1 stop
$1,095United Airlines
Find Deal
Mon, Nov 17 - Wed, Nov 26
Avianca Logo
11:25 pm - 2:10 amONT-GRU
22h 45m2 stops
Avianca Logo
7:20 am - 9:55 pmGRU-ONT
18h 35m2 stops
$1,129Avianca
Find Deal
Tue, Oct 14 - Sat, Oct 25
Avianca Logo
11:25 pm - 12:40 amONT-GRU
21h 15m2 stops
Avianca Logo
5:25 pm - 9:55 pmGRU-ONT
32h 30m2 stops
$1,135Avianca
Find Deal
Tue, Oct 21 - Fri, Oct 31
United Airlines Logo
7:00 am - 7:15 amONT-GRU
19h 15m1 stop
United Airlines Logo
10:15 pm - 9:49 pmGRU-ONT
28h 34m1 stop
$1,144United Airlines
Find Deal
Mon, Nov 17 - Sun, Nov 30
United Airlines Logo
11:59 pm - 7:15 amONT-GRU
26h 16m1 stop
United Airlines Logo
9:45 pm - 10:26 pmGRU-ONT
29h 41m1 stop
$1,145United Airlines
Find Deal
Mon, Jan 5 - Sun, Jan 18
LATAM Airlines Logo
1:00 pm - 9:35 amONT-GRU
15h 35m1 stop
LATAM Airlines Logo
11:45 pm - 11:38 amGRU-ONT
16h 53m1 stop
$1,225LATAM Airlines
Find Deal
Mon, Feb 9 - Sun, Feb 22
LATAM Airlines Logo
11:36 am - 9:35 amONT-GRU
17h 59m1 stop
LATAM Airlines Logo
9:15 pm - 10:26 amGRU-ONT
18h 11m1 stop
$1,243LATAM Airlines
Find Deal
Thu, Oct 30 - Thu, Nov 6
Delta Logo
1:00 pm - 4:30 pmONT-GRU
22h 30m2 stops
Delta Logo
9:30 pm - 11:38 amGRU-ONT
19h 08m1 stop
$1,260Delta
Find Deal
Mon, Mar 2 - Fri, Mar 6
Delta Logo
1:00 pm - 9:35 amONT-GRU
15h 35m1 stop
Delta Logo
9:30 pm - 11:38 amGRU-ONT
19h 08m1 stop
$1,303Delta
Find Deal
Mon, Mar 2 - Fri, Mar 6

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
Nov 17
ONT7:00 amOntario
19h 15m
1 stop
GRU7:15 amSao Paulo Guarulhos Intl
Nov 27
GRU10:25 pmSao Paulo Guarulhos Intl
29h 26m
2 stops
ONT10:51 pmOntario
$1,090
Find similar
United Airlines
Nov 17
ONT5:05 amOntario
21h 45m
2 stops
GRU7:50 amSao Paulo Guarulhos Intl
Nov 26
GRU9:45 pmSao Paulo Guarulhos Intl
22h 36m
1 stop
ONT3:21 pmOntario
$1,095
Find similar
United Airlines
Nov 17
ONT7:00 amOntario
19h 15m
1 stop
GRU7:15 amSao Paulo Guarulhos Intl
Nov 30
GRU10:15 pmSao Paulo Guarulhos Intl
28h 34m
1 stop
ONT9:49 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
Oct 14
ONT11:25 pmOntario
22h 45m
2 stops
GRU2:10 amSao Paulo Guarulhos Intl
Oct 25
GRU7:20 amSao Paulo Guarulhos Intl
18h 35m
2 stops
ONT9:55 pmOntario
$1,129
Find similar
Avianca
Oct 21
ONT11:25 pmOntario
21h 15m
2 stops
GRU12:40 amSao Paulo Guarulhos Intl
Oct 31
GRU5:25 pmSao Paulo Guarulhos Intl
32h 30m
2 stops
ONT9:55 pmOntario
$1,135
Find similar
Avianca
Sep 27
ONT11:25 pmOntario
21h 15m
2 stops
GRU12:40 amSao Paulo Guarulhos Intl
Sep 30
GRU7:20 amSao Paulo Guarulhos Intl
18h 35m
2 stops
ONT9:55 pmOntario
$1,144
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 September 15, 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

Mon 11/17

7:00 am-7:15 am

1 stop19h 15m

Sao Paulo Guarulhos Intl

Wed 11/26

9:45 pm-3:21 pm

1 stop22h 36m

$1,090

OntarioSao Paulo

ONT - GRU

ONTGRU

Ontario

Mon 11/17

5:05 am-7:50 am

2 stops21h 45m

Sao Paulo Guarulhos Intl

Wed 11/26

9:45 pm-3:21 pm

1 stop22h 36m

$1,095

OntarioSao Paulo

ONT - GRU

ONTGRU

Ontario

Tue 10/14

11:25 pm-2:10 am

2 stops22h 45m

Sao Paulo Guarulhos Intl

Sat 10/25

7:20 am-9:55 pm

2 stops18h 35m

$1,129

OntarioSao Paulo

ONT - GRU

ONTGRU

Ontario

Tue 10/21

11:25 pm-12:40 am

2 stops21h 15m

Sao Paulo Guarulhos Intl

Fri 10/31

5:25 pm-9:55 pm

2 stops32h 30m

$1,135

OntarioSao Paulo

ONT - GRU

ONTGRU

Ontario

Mon 11/17

7:00 am-7:15 am

1 stop19h 15m

Sao Paulo Guarulhos Intl

Sun 11/30

10:15 pm-9:49 pm

1 stop28h 34m

$1,144

OntarioSao Paulo

ONT - GRU

ONTGRU

Ontario

Mon 1/5

11:59 pm-7:15 am

1 stop26h 16m

Sao Paulo Guarulhos Intl

Sun 1/18

9:45 pm-10:26 pm

1 stop29h 41m

$1,145

OntarioSao Paulo

ONT - GRU

ONTGRU

Ontario

Mon 2/9

1:00 pm-9:35 am

1 stop15h 35m

Sao Paulo Guarulhos Intl

Sun 2/22

11:45 pm-11:38 am

1 stop16h 53m

$1,225

OntarioSao Paulo

ONT - GRU

ONTGRU

Ontario

Thu 10/30

11:36 am-9:35 am

1 stop17h 59m

Sao Paulo Guarulhos Intl

Thu 11/6

9:15 pm-10:26 am

1 stop18h 11m

$1,243

OntarioSao Paulo

ONT - GRU

ONTGRU

Ontario

Mon 3/2

1:00 pm-4:30 pm

2 stops22h 30m

Sao Paulo Guarulhos Intl

Fri 3/6

9:30 pm-11:38 am

1 stop19h 08m

$1,260

OntarioSao Paulo

ONT - GRU

ONTGRU

Ontario

Mon 3/2

1:00 pm-9:35 am

1 stop15h 35m

Sao Paulo Guarulhos Intl

Fri 3/6

9:30 pm-11:38 am

1 stop19h 08m

$1,303

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 Thursday. momondo users have found tickets for Thursday departures for as low as $690. 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 $937.

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 in the evening. Our users have found flights to Sao Paulo Guarulhos Intl Airport in the evening for as low as $668. Flights in the morning are often more expensive with an average ticket price of $891.

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

Direct flights

None
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.
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  • 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 15h 35m.

  • 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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