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Cheap flights from Ontario to Rio de Janeiro from $479

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 Rio de Janeiro departing on 10/27. 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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United Airlines Logo
6:00 am - 9:35 amONT-GIG
22h 35m1 stop
United Airlines Logo
9:55 pm - 12:47 pmGIG-ONT
19h 52m2 stops
$1,045United Airlines
Find Deal
Tue, Jan 20 - Tue, Feb 3
United Airlines Logo
5:05 am - 9:35 amONT-GIG
23h 30m2 stops
United Airlines Logo
9:55 pm - 12:32 pmGIG-ONT
19h 37m2 stops
$1,085United Airlines
Find Deal
Mon, Nov 24 - Sun, Dec 7
United Airlines Logo
6:05 am - 9:35 amONT-GIG
22h 30m1 stop
United Airlines Logo
9:55 pm - 9:49 pmGIG-ONT
28h 54m1 stop
$1,094United Airlines
Find Deal
Mon, Nov 24 - Sun, Dec 7
United Airlines Logo
6:00 am - 9:35 amONT-GIG
22h 35m1 stop
United Airlines Logo
8:55 pm - 12:33 pmGIG-ONT
19h 38m2 stops
$1,095United Airlines
Find Deal
Mon, Mar 2 - Tue, Mar 17
United Airlines Logo
1:00 pm - 9:35 amONT-GIG
39h 35m2 stops
United Airlines Logo
9:55 pm - 10:45 pmGIG-ONT
29h 50m2 stops
$1,104United Airlines
Find Deal
Sun, Feb 22 - Fri, Mar 6
United Airlines Logo
5:05 am - 9:35 amONT-GIG
47h 30m2 stops
United Airlines Logo
9:55 pm - 5:37 pmGIG-ONT
24h 42m2 stops
$1,105United Airlines
Find Deal
Thu, Nov 27 - Mon, Dec 8
United Airlines Logo
1:00 pm - 9:35 amONT-GIG
39h 35m2 stops
United Airlines Logo
9:55 pm - 9:21 pmGIG-ONT
28h 26m1 stop
$1,118United Airlines
Find Deal
Sun, Feb 22 - Fri, Mar 6
United Airlines Logo
6:00 am - 9:35 amONT-GIG
22h 35m2 stops
United Airlines Logo
9:55 pm - 12:32 pmGIG-ONT
19h 37m2 stops
$1,120United Airlines
Find Deal
Wed, Dec 3 - Wed, Dec 10
Multiple Airlines Logo
12:42 am - 10:45 amONT-GIG
29h 03m3 stops
Multiple Airlines Logo
5:10 am - 10:56 pmGIG-ONT
22h 46m3 stops
$1,244Multiple Airlines
Find Deal
Sun, Nov 16 - Sun, Nov 30
Avianca Logo
10:30 pm - 6:25 amONT-GIG
26h 55m2 stops
Avianca Logo
1:45 am - 8:55 pmGIG-ONT
24h 10m2 stops
$1,362Avianca
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Tue, Jan 20 - Mon, Feb 2

United Airlines flights from Ontario to Rio de Janeiro–Galeão Intl Airport

Our best United Airlines deals on Ontario to Rio de Janeiro–Galeão Intl Airport flight tickets
United Airlines
Jan 20
ONT6:00 amOntario
22h 35m
1 stop
GIG9:35 amRio de Janeiro–Galeão Intl
Feb 3
GIG9:55 pmRio de Janeiro–Galeão Intl
19h 52m
2 stops
ONT12:47 pmOntario
$1,045
Find similar
United Airlines
Nov 24
ONT5:05 amOntario
23h 30m
2 stops
GIG9:35 amRio de Janeiro–Galeão Intl
Dec 7
GIG9:55 pmRio de Janeiro–Galeão Intl
19h 37m
2 stops
ONT12:32 pmOntario
$1,085
Find similar
United Airlines
Nov 24
ONT6:05 amOntario
22h 30m
1 stop
GIG9:35 amRio de Janeiro–Galeão Intl
Dec 7
GIG9:55 pmRio de Janeiro–Galeão Intl
28h 54m
1 stop
ONT9:49 pmOntario
$1,094
Find similar

Avianca flights from Ontario to Rio de Janeiro–Galeão Intl Airport

Our best Avianca deals on Ontario to Rio de Janeiro–Galeão Intl Airport flight tickets
Avianca
Jan 20
ONT10:30 pmOntario
26h 55m
2 stops
GIG6:25 amRio de Janeiro–Galeão Intl
Feb 2
GIG1:45 amRio de Janeiro–Galeão Intl
24h 10m
2 stops
ONT8:55 pmOntario
$1,362
Find similar
Avianca
Oct 14
ONT11:25 pmOntario
21h 00m
2 stops
GIG12:25 amRio de Janeiro–Galeão Intl
Oct 21
GIG1:30 amRio de Janeiro–Galeão Intl
48h 25m
2 stops
ONT9:55 pmOntario
$2,325
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from Ontario to Rio de Janeiro–Galeão 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 October 5, 2025.
Use the filters below to find and compare flights from Ontario to Rio de Janeiro–Galeão Intl Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

OntarioRio de Janeiro

ONT - GIG

ONTGIG

Ontario

Tue 1/20

6:00 am-9:35 am

1 stop22h 35m

Rio de Janeiro–Galeão Intl

Tue 2/3

9:55 pm-12:47 pm

2 stops19h 52m

$1,045

OntarioRio de Janeiro

ONT - GIG

ONTGIG

Ontario

Mon 11/24

5:05 am-9:35 am

2 stops23h 30m

Rio de Janeiro–Galeão Intl

Sun 12/7

9:55 pm-12:32 pm

2 stops19h 37m

$1,085

OntarioRio de Janeiro

ONT - GIG

ONTGIG

Ontario

Mon 11/24

6:05 am-9:35 am

1 stop22h 30m

Rio de Janeiro–Galeão Intl

Sun 12/7

9:55 pm-9:49 pm

1 stop28h 54m

$1,094

OntarioRio de Janeiro

ONT - GIG

ONTGIG

Ontario

Mon 3/2

6:00 am-9:35 am

1 stop22h 35m

Rio de Janeiro–Galeão Intl

Tue 3/17

8:55 pm-12:33 pm

2 stops19h 38m

$1,095

OntarioRio de Janeiro

ONT - GIG

ONTGIG

Ontario

Sun 2/22

1:00 pm-9:35 am

2 stops39h 35m

Rio de Janeiro–Galeão Intl

Fri 3/6

9:55 pm-10:45 pm

2 stops29h 50m

$1,104

OntarioRio de Janeiro

ONT - GIG

ONTGIG

Ontario

Thu 11/27

5:05 am-9:35 am

2 stops47h 30m

Rio de Janeiro–Galeão Intl

Mon 12/8

9:55 pm-5:37 pm

2 stops24h 42m

$1,105

OntarioRio de Janeiro

ONT - GIG

ONTGIG

Ontario

Sun 2/22

1:00 pm-9:35 am

2 stops39h 35m

Rio de Janeiro–Galeão Intl

Fri 3/6

9:55 pm-9:21 pm

1 stop28h 26m

$1,118

OntarioRio de Janeiro

ONT - GIG

ONTGIG

Ontario

Wed 12/3

6:00 am-9:35 am

2 stops22h 35m

Rio de Janeiro–Galeão Intl

Wed 12/10

9:55 pm-12:32 pm

2 stops19h 37m

$1,120

OntarioRio de Janeiro

ONT - GIG

ONTGIG

Ontario

Sun 11/16

12:42 am-10:45 am

3 stops29h 03m

Rio de Janeiro–Galeão Intl

Sun 11/30

5:10 am-10:56 pm

3 stops22h 46m

$1,244

OntarioRio de Janeiro

ONT - GIG

ONTGIG

Ontario

Tue 1/20

10:30 pm-6:25 am

2 stops26h 55m

Rio de Janeiro–Galeão Intl

Mon 2/2

1:45 am-8:55 pm

2 stops24h 10m

$1,362

Flights are sorted by cheapest round-trip flights first.

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How to get the cheapest flight ticket from Ontario to Rio de Janeiro–Galeão 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 Rio de Janeiro–Galeão Intl Airport?

Our data shows that Wednesday is the least expensive day to fly to Rio de Janeiro–Galeão Intl Airport. Tickets to fly out on this day can be as low as $895. The most expensive day to fly to Rio de Janeiro–Galeão Intl Airport is Sunday, with ticket prices averaging around $1,053.

What is the cheapest time of day to depart on your flight to Rio de Janeiro–Galeão Intl Airport?

Flying to Rio de Janeiro–Galeão Intl Airport from Ontario in the evening is the least expensive time of day to depart. momondo users have found prices as low as $877 when looking at flights departing in the evening. Try not to purchase tickets in the morning because they tend to be around $988. Of course, these prices can vary depending on the time of year and what airport you fly to.

When to book flights from Ontario to Rio de Janeiro–Galeão Intl Airport

Are you open to changing your travel dates? Check out the ideal times to fly from Ontario to Rio de Janeiro–Galeão Intl Airport according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Ontario to Rio de Janeiro–Galeão Intl Airport (ONT to GIG) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Ontario to Rio de Janeiro–Galeão Intl Airport

Direct flights

None
There are no direct flights from Ontario to Rio de Janeiro–Galeão Intl Airport. There are no popular flight routes from Ontario to Rio de Janeiro–Galeão Intl Airport.
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  • How far is Ontario to Rio de Janeiro–Galeão Intl by plane?

    Ontario and Rio de Janeiro–Galeão Intl are 6261.2 mi apart from one another. A reasonable flight in good conditions will take 22h 30m.

  • When did momondo last update prices for flights from Ontario Airport to Rio de Janeiro–Galeão Intl Airport?

    Prices for flights from Ontario Airport to Rio de Janeiro–Galeão Intl Airport were last updated today.

  • How old do you have to be to fly from Ontario Airport to Rio de Janeiro–Galeão 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 Rio de Janeiro–Galeão Intl Airport.

  • What documentation or ID do you need to fly to Rio de Janeiro–Galeão Intl Airport?

    The necessary travel and health documents for your Rio de Janeiro–Galeão 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.

Why use momondo?

Why should I use momondo to find a flight deal from Ontario to Rio de Janeiro?

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from Ontario to Rio de Janeiro. Millions of users trust and use momondo every year so you are in good hands.

Can I find flights from Ontario to Rio de Janeiro with flexible booking policies on momondo?

Yes. momondo allows you to filter the results for Ontario to Rio de Janeiro flights to just show those with flexible booking policies.

How can momondo help me find flights from Ontario to Rio de Janeiro?

Once you have performed a search for Ontario to Rio de Janeiro flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

I’m not ready to book a flight from Ontario to Rio de Janeiro right now. Can momondo alert me if prices change?

If you are not ready to book a flight from Ontario to Rio de Janeiro now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Rio de Janeiro and let you know when they change.

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