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$461+ Cheap flights from Rio de Janeiro, Brazil (RIO) 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 10/27. Fares are subject to change and may not be available on all flights or dates of travel.
RIO — ONT
Aug 7 — Aug 141
Thu 8/7
Thu 8/14
1 adult, Economy
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Cheap flight deals from Rio de Janeiro to Ontario

Discover tips and strategies to find the most affordable flight options for your journey from Rio de Janeiro (RIO) 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 August 2, 2025.

Round-trip from

$1,075
(United Airlines)

One-way from

$461
(Mytrip)

Popular in

July

Cheapest in

October

Average price

$637
From Rio de Janeiro (RIO) to Ontario
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One-way flight from Rio de Janeiro (RIO) to Ontario
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Highest demand for flights based on searches. 10% potential increase in price ($77 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($16 potential savings vs. average RT price).
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Average for round-trip flights in August 2025
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Find flight deals from Rio de Janeiro to Ontario

Cheapest flights from Rio de Janeiro to Ontario
Explore the most affordable flight options available from Rio de Janeiro to Ontario. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 2, 2025.

This United Airlines deal was found by Cheapflights users on 7/31. 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.
Fri 11/219:55 pmGIG - ONT
2 stops27h 49mUnited Airlines
Tue 12/26:00 amONT - GIG
1 stop22h 35mUnited Airlines
Deal found 7/31$1,075
This Avianca deal was found by Cheapflights users on 7/31. 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 Avianca is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/217:30 amGIG - ONT
2 stops42h 25mAvianca
Tue 12/210:30 pmONT - GIG
2 stops21h 10mAvianca
Deal found 7/31$1,211
This United deal was found by Cheapflights users on 7/31. 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/219:05 pmGIG - ONT
2 stops19h 27mMultiple Airlines
Tue 9/3011:25 pmONT - GIG
2 stops21h 00mMultiple Airlines
Deal found 7/31$1,412
This LATAM Airlines deal was found by Cheapflights users on 8/1. 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.
Fri 12/269:30 pmGIG - ONT
1 stop18h 08mLATAM Airlines
Wed 1/141:00 pmONT - GIG
1 stop14h 20mLATAM Airlines
Deal found 8/1$1,416
This American Airlines deal was found by Cheapflights users on 7/31. 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 8/1411:00 pmGIG - ONT
2 stops18h 39mAmerican Airlines
Wed 8/2712:46 pmONT - GIG
2 stops17h 29mAmerican Airlines
Deal found 7/31$2,147

Cheapflights Fare Finder

 
Customize your flight search to find flights from Rio de Janeiro 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 August 2, 2025.
Use the filters below to find and compare flights from Rio de Janeiro to Ontario that are best for you.

Fly from

Rio de Janeiro

Fly to

Ontario

Route

Depart

Return

Price

Rio de JaneiroOntario

GIG - ONT

GIGONT

Rio de Janeiro–Galeão Intl

Fri 11/21

9:55 pm-8:44 pm

2 stops27h 49m

Ontario

Tue 12/2

6:00 am-9:35 am

1 stop22h 35m

$1,075

Rio de JaneiroOntario

GIG - ONT

GIGONT

Rio de Janeiro–Galeão Intl

Fri 11/21

7:30 am-8:55 pm

2 stops42h 25m

Ontario

Tue 12/2

10:30 pm-12:40 am

2 stops21h 10m

$1,211

Rio de JaneiroOntario

GIG - ONT

GIGONT

Rio de Janeiro–Galeão Intl

Thu 8/21

9:05 pm-12:32 pm

2 stops19h 27m

Ontario

Tue 9/30

11:25 pm-12:25 am

2 stops21h 00m

$1,412

Rio de JaneiroOntario

GIG - ONT

GIGONT

Rio de Janeiro–Galeão Intl

Fri 12/26

9:30 pm-10:38 am

1 stop18h 08m

Ontario

Wed 1/14

1:00 pm-8:20 am

1 stop14h 20m

$1,416

Rio de JaneiroOntario

GIG - ONT

GIGONT

Rio de Janeiro–Galeão Intl

Thu 8/14

11:00 pm-1:39 pm

2 stops18h 39m

Ontario

Wed 8/27

12:46 pm-10:15 am

2 stops17h 29m

$2,147

Rio de JaneiroOntario

GIG - ONT

GIGONT

Rio de Janeiro–Galeão Intl

Fri 11/21

9:30 pm-11:24 am

1 stop18h 54m

Ontario

Sat 11/29

12:00 pm-8:20 am

1 stop15h 20m

$2,390

Rio de JaneiroOntario

GIG - ONT

GIGONT

Rio de Janeiro–Galeão Intl

Mon 10/27

10:30 pm-11:13 pm

3 stops28h 43m

$461

Rio de JaneiroOntario

GIG - ONT

GIGONT

Rio de Janeiro–Galeão Intl

Mon 12/15

1:45 am-9:00 pm

2 stops24h 15m

$554

Rio de JaneiroOntario

GIG - ONT

GIGONT

Rio de Janeiro–Galeão Intl

Tue 11/11

9:55 pm-5:34 pm

2 stops24h 39m

$579

Rio de JaneiroOntario

GIG - ONT

GIGONT

Rio de Janeiro–Galeão Intl

Mon 1/19

9:30 pm-11:38 am

1 stop19h 08m

$751

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/31

Showing 1-10 of 11 results
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Best time to book a flight from Rio de Janeiro to Ontario

Have a flexible travel schedule? Discover the best time to fly to Ontario from Rio de Janeiro 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 Rio de Janeiro to Ontario

What is the cheapest month to book a flight from Rio de Janeiro to Ontario?

Currently, August is the cheapest month in which you can book a flight from Rio de Janeiro to Ontario (average of $246). Flying from Rio de Janeiro to Ontario in March is currently the most expensive (average of $328). 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.

Reviews of airlines servicing Ontario

Get insights into the airlines that provide service to Ontario. 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 Ontario. Reviews last updated August 2, 2025.
Read reviews from past customers who have flown Delta, LATAM Airlines, and United Airlines from Rio de Janeiro to Ontario. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,983 reviews

Overall

8.0

Crew

8.5

Boarding

8.2

Entertainment

7.9

Comfort

7.9

Food

7.3

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
Delta
8.0
Very good
7,983 reviews
Delta
8.0
Very good
7,983 reviews

Overall

8.0

Crew

8.5

Boarding

8.2

Entertainment

7.9

Comfort

7.9

Food

7.3

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
LATAM Airlines
7.5
Good
1,823 reviews
Delta
8.0
Very good
7,983 reviews

Overall

8.0

Crew

8.5

Boarding

8.2

Entertainment

7.9

Comfort

7.9

Food

7.3

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
United Airlines
7.4
Good
8,904 reviews
Delta
8.0
Very good
7,983 reviews

Overall

8.0

Crew

8.5

Boarding

8.2

Entertainment

7.9

Comfort

7.9

Food

7.3

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
American Airlines
7.2
Good
10,000 reviews
Delta
8.0
Very good
7,983 reviews

Overall

8.0

Crew

8.5

Boarding

8.2

Entertainment

7.9

Comfort

7.9

Food

7.3

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
Avianca
6.7
Okay
2,388 reviews
Delta
8.0
Very good
7,983 reviews

Overall

8.0

Crew

8.5

Boarding

8.2

Entertainment

7.9

Comfort

7.9

Food

7.3

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Related info for your journey

Find useful and relevant information for your journey from Rio de Janeiro 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 Rio de Janeiro?

    Located just 3.1 mi from the city center, Ontario is the airport most travelers will use when flying to Ontario from Rio de Janeiro. Booking flights from Rio de Janeiro to Ontario (ONT) should be relatively easy as there are 0 daily inbound flights from Rio de Janeiro from 0 different airlines.

  • What are the cheapest airlines to fly from Rio de Janeiro to Ontario one-way?

    One-way options have recently been found by users for as low as $554 on Avianca. Other airlines that offer cheap prices include United Airlines from $579 and LATAM Airlines from $751 one-way.

  • Can I find deals for flights from Rio de Janeiro to Ontario that include hotel bookings?

    Yes. In addition to deals on Rio de Janeiro to Ontario flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Rio de Janeiro to Ontario?

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

  • Can I find deals for business class flights from Rio de Janeiro to Ontario?

    Yes. Cheapflights offers flight deals from Rio de Janeiro 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 Rio de Janeiro to Ontario?

    Currently, August is the cheapest month in which you can book a flight from Rio de Janeiro to Ontario (average of $246). Flying from Rio de Janeiro to Ontario in March is currently the most expensive (average of $328). 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

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