HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Ontario

$551+ 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 5/7. Fares are subject to change and may not be available on all flights or dates of travel.
RIO — ONT
Apr 16 — Apr 231
Wed 4/16
Wed 4/23
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Rio de Janeiro to Ontario 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 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 April 11, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$1,044
(United Airlines)

One-way from

$551
(Priceline)

Popular in

July

Cheapest in

March

Average price

$659
Provider with most accurate pricing for Rio de Janeiro (RIO)-Ontario flight deals.
Search Deals
Provider most trusted by Cheapflights users for Rio de Janeiro (RIO)-Ontario flights.
Search Deals
From Rio de Janeiro (RIO) to Ontario
Search Deals
One-way flight from Rio de Janeiro (RIO) to Ontario
Search Deals
Highest demand for flights based on searches. 12% potential increase in price ($103 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($18 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in April 2025
Search Deals

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 April 11, 2025.

This United Airlines deal was found by Cheapflights users on 4/10. 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.
Wed 10/19:05 pmGIG - ONT
2 stops27h 12mUnited Airlines
Wed 10/158:18 pmONT - GIG
2 stops31h 57mUnited Airlines
Deal found 4/10$1,044
This Booking.com deal was found by Cheapflights users on 4/10. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/291:45 amGIG - ONT
2 stops24h 15mAvianca
Tue 11/1810:30 pmONT - GIG
2 stops21h 10mAvianca
Deal found 4/10$1,127
This American Airlines deal was found by Cheapflights users on 4/10. 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.
Sat 5/1011:00 pmGIG - ONT
2 stops18h 52mAmerican Airlines
Mon 5/2610:53 amONT - GIG
2 stops17h 27mAmerican Airlines
Deal found 4/10$1,570
This Delta deal was found by Cheapflights users on 4/10. 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.
Fri 7/116:15 amGIG - ONT
2 stops20h 14mDelta
Mon 7/2112:00 pmONT - GIG
1 stop18h 15mDelta
Deal found 4/10$2,095

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 April 11, 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

Wed 10/1

9:05 pm-8:17 pm

2 stops27h 12m

Ontario

Wed 10/15

8:18 pm-8:15 am

2 stops31h 57m

$1,044

Rio de JaneiroOntario

GIG - ONT

GIGONT

Rio de Janeiro–Galeão Intl

Tue 6/17

7:25 am-9:55 pm

2 stops18h 30m

Ontario

Sat 6/28

11:25 pm-12:25 am

2 stops21h 00m

$1,167

Rio de JaneiroOntario

GIG - ONT

GIGONT

Rio de Janeiro–Galeão Intl

Sat 5/10

11:00 pm-1:52 pm

2 stops18h 52m

Ontario

Mon 5/26

10:53 am-8:20 am

2 stops17h 27m

$1,570

Rio de JaneiroOntario

GIG - ONT

GIGONT

Rio de Janeiro–Galeão Intl

Fri 7/11

6:15 am-10:29 pm

2 stops20h 14m

Ontario

Mon 7/21

12:00 pm-10:15 am

1 stop18h 15m

$2,095

Rio de JaneiroOntario

GIG - ONT

GIGONT

Rio de Janeiro–Galeão Intl

Wed 5/7

1:30 am-9:55 pm

2 stops24h 25m

$551

Rio de JaneiroOntario

GIG - ONT

GIGONT

Rio de Janeiro–Galeão Intl

Tue 9/30

9:05 pm-8:17 pm

2 stops27h 12m

$584

Rio de JaneiroOntario

GIG - ONT

GIGONT

Rio de Janeiro–Galeão Intl

Sat 8/9

5:00 pm-9:27 am

2 stops20h 27m

$696

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/11

Compare providers for flights from Rio de Janeiro to Ontario

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 Rio de Janeiro to Ontario in April.
ProviderPrice AccuracyTrust Score*
FlightHubPrice Accuracy3 starsTrust Score*3 stars
eDreamsPrice 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 Rio de Janeiro-Ontario flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Rio de Janeiro-Ontario flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Rio de Janeiro-Ontario flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Rio de Janeiro-Ontario 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 Rio de Janeiro-Ontario 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 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.

Rainfall in Ontario by month

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

In terms of precipitation, rainfall in Ontario ranges from 0.1 - 3.4 inches per month. February is typically the wettest month, when rainfall can reach 3.4 in. June is typically the driest time to visit Ontario when rainfall is around 0.1 in.

Temperature in Ontario by month

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

If weather is an important factor for your trip to Ontario, use this chart to help with planning. For those seeking warmer temperatures, August is the ideal time of year to visit, when temperatures reach an average of 78.8 F. Travelers looking to avoid the cold should look outside of December, when temperatures are typically at their lowest (around 53.6 F).

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 April 11, 2025.
Delta
8.0
Very good
7,910 reviews

Comfort

7.9

Boarding

8.2

Crew

8.5

Food

7.3

Overall

8.0

Entertainment

7.9

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
7,910 reviews
Delta
8.0
Very good
7,910 reviews

Comfort

7.9

Boarding

8.2

Crew

8.5

Food

7.3

Overall

8.0

Entertainment

7.9

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
8,636 reviews
Delta
8.0
Very good
7,910 reviews

Comfort

7.9

Boarding

8.2

Crew

8.5

Food

7.3

Overall

8.0

Entertainment

7.9

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
7,910 reviews

Comfort

7.9

Boarding

8.2

Crew

8.5

Food

7.3

Overall

8.0

Entertainment

7.9

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
2,311 reviews
Delta
8.0
Very good
7,910 reviews

Comfort

7.9

Boarding

8.2

Crew

8.5

Food

7.3

Overall

8.0

Entertainment

7.9

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 $551 on Avianca. Other airlines that offer cheap prices include United Airlines from $584 and American Airlines from $696 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

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.

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.