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Cheap flights from Ontario to Sao Paulo from $401

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 4/28. 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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Cheap round-trip flights

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Multiple Airlines Logo
11:34 pm - 5:40 amONT-GRU
26h 06m3 stops
Multiple Airlines Logo
11:59 pm - 11:14 pmGRU-ONT
27h 15m3 stops
$887Multiple Airlines
Find Deal
Sun, Mar 8 - Fri, Mar 13
Multiple Airlines Logo
1:04 am - 5:40 amONT-GRU
23h 36m3 stops
Multiple Airlines Logo
11:59 pm - 11:14 pmGRU-ONT
27h 15m3 stops
$918Multiple Airlines
Find Deal
Sat, Mar 7 - Fri, Mar 13
Avianca Logo
10:30 pm - 10:40 pmONT-GRU
19h 10m2 stops
Avianca Logo
7:35 am - 8:55 pmGRU-ONT
18h 20m2 stops
$1,195Avianca
Find Deal
Thu, Feb 19 - Tue, Feb 24
United Airlines Logo
6:00 am - 9:30 amONT-GRU
22h 30m1 stop
United Airlines Logo
10:15 pm - 10:53 pmGRU-ONT
29h 38m2 stops
$1,245United Airlines
Find Deal
Thu, Jan 8 - Thu, Jan 22
United Airlines Logo
6:00 am - 9:30 amONT-GRU
22h 30m1 stop
United Airlines Logo
10:15 pm - 9:52 pmGRU-ONT
28h 37m1 stop
$1,255United Airlines
Find Deal
Tue, Dec 9 - Wed, Dec 24
American Airlines Logo
11:59 pm - 8:10 amONT-GRU
28h 11m1 stop
American Airlines Logo
11:00 pm - 5:49 pmGRU-ONT
22h 49m1 stop
$1,294American Airlines
Find Deal
Sun, Mar 8 - Fri, Mar 13
Delta Logo
10:20 pm - 5:40 amONT-GRU
26h 20m1 stop
Delta Logo
11:45 pm - 11:59 amGRU-ONT
17h 14m1 stop
$1,298Delta
Find Deal
Mon, Mar 2 - Fri, Mar 6
Avianca Logo
10:30 pm - 10:40 pmONT-GRU
19h 10m2 stops
Avianca Logo
1:20 am - 8:55 pmGRU-ONT
24h 35m2 stops
$1,320Avianca
Find Deal
Tue, Feb 10 - Mon, Feb 16
Delta Logo
12:16 pm - 9:35 amONT-GRU
16h 19m1 stop
Delta Logo
11:45 pm - 11:02 amGRU-ONT
16h 17m1 stop
$1,330Delta
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Mon, Nov 17 - Tue, Dec 2
American Airlines Logo
7:10 am - 8:05 amONT-GRU
19h 55m2 stops
American Airlines Logo
12:15 am - 1:57 pmGRU-ONT
18h 42m2 stops
$1,445American Airlines
Find Deal
Mon, Mar 2 - Thu, Mar 5

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
Jan 8
ONT6:00 amOntario
22h 30m
1 stop
GRU9:30 amSao Paulo Guarulhos Intl
Jan 22
GRU10:15 pmSao Paulo Guarulhos Intl
29h 38m
2 stops
ONT10:53 pmOntario
$1,245
Find similar
United Airlines
Dec 9
ONT6:00 amOntario
22h 30m
1 stop
GRU9:30 amSao Paulo Guarulhos Intl
Dec 24
GRU10:15 pmSao Paulo Guarulhos Intl
28h 37m
1 stop
ONT9:52 pmOntario
$1,255
Find similar
United Airlines
Mar 2
ONT5:00 amOntario
21h 50m
2 stops
GRU7:50 amSao Paulo Guarulhos Intl
Mar 6
GRU9:30 pmSao Paulo Guarulhos Intl
28h 15m
2 stops
ONT8:45 pmOntario
$1,285
Find similar

LATAM Airlines flights from Ontario to Sao Paulo Guarulhos Intl Airport

Our best LATAM Airlines deals on Ontario to Sao Paulo Guarulhos Intl Airport flight tickets
LATAM Airlines
Jan 20
ONT1:04 pmOntario
15h 31m
1 stop
GRU9:35 amSao Paulo Guarulhos Intl
Feb 3
GRU11:45 pmSao Paulo Guarulhos Intl
17h 09m
1 stop
ONT11:54 amOntario
$1,329
Find similar
LATAM Airlines
Nov 26
ONT7:05 amOntario
17h 35m
1 stop
GRU5:40 amSao Paulo Guarulhos Intl
Dec 7
GRU11:45 pmSao Paulo Guarulhos Intl
16h 17m
1 stop
ONT11:02 amOntario
$1,357
Find similar
LATAM Airlines
Nov 26
ONT7:05 amOntario
17h 35m
1 stop
GRU5:40 amSao Paulo Guarulhos Intl
Dec 7
GRU10:20 amSao Paulo Guarulhos Intl
17h 44m
2 stops
ONT11:04 pmOntario
$1,362
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 November 6, 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

Sun 3/8

11:34 pm-5:40 am

3 stops26h 06m

Sao Paulo Guarulhos Intl

Fri 3/13

11:59 pm-11:14 pm

3 stops27h 15m

$887

OntarioSao Paulo

ONT - GRU

ONTGRU

Ontario

Sat 3/7

1:04 am-5:40 am

3 stops23h 36m

Sao Paulo Guarulhos Intl

Fri 3/13

11:59 pm-11:14 pm

3 stops27h 15m

$918

OntarioSao Paulo

ONT - GRU

ONTGRU

Ontario

Thu 2/19

10:30 pm-10:40 pm

2 stops19h 10m

Sao Paulo Guarulhos Intl

Tue 2/24

7:35 am-8:55 pm

2 stops18h 20m

$1,195

OntarioSao Paulo

ONT - GRU

ONTGRU

Ontario

Thu 1/8

6:00 am-9:30 am

1 stop22h 30m

Sao Paulo Guarulhos Intl

Thu 1/22

10:15 pm-10:53 pm

2 stops29h 38m

$1,245

OntarioSao Paulo

ONT - GRU

ONTGRU

Ontario

Tue 12/9

6:00 am-9:30 am

1 stop22h 30m

Sao Paulo Guarulhos Intl

Wed 12/24

10:15 pm-9:52 pm

1 stop28h 37m

$1,255

OntarioSao Paulo

ONT - GRU

ONTGRU

Ontario

Sun 3/8

11:59 pm-8:10 am

1 stop28h 11m

Sao Paulo Guarulhos Intl

Fri 3/13

11:00 pm-5:49 pm

1 stop22h 49m

$1,294

OntarioSao Paulo

ONT - GRU

ONTGRU

Ontario

Mon 3/2

10:20 pm-5:40 am

1 stop26h 20m

Sao Paulo Guarulhos Intl

Fri 3/6

11:45 pm-11:59 am

1 stop17h 14m

$1,298

OntarioSao Paulo

ONT - GRU

ONTGRU

Ontario

Tue 2/10

10:30 pm-10:40 pm

2 stops19h 10m

Sao Paulo Guarulhos Intl

Mon 2/16

1:20 am-8:55 pm

2 stops24h 35m

$1,320

OntarioSao Paulo

ONT - GRU

ONTGRU

Ontario

Mon 11/17

12:16 pm-9:35 am

1 stop16h 19m

Sao Paulo Guarulhos Intl

Tue 12/2

11:45 pm-11:02 am

1 stop16h 17m

$1,330

OntarioSao Paulo

ONT - GRU

ONTGRU

Ontario

Mon 3/2

7:10 am-8:05 am

2 stops19h 55m

Sao Paulo Guarulhos Intl

Thu 3/5

12:15 am-1:57 pm

2 stops18h 42m

$1,445

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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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 $664. 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 $951.

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 at noon. Our users have found flights to Sao Paulo Guarulhos Intl Airport at noon for as low as $804. Flights in the morning are often more expensive with an average ticket price of $953.

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 31m.

  • 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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