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$666+ Cheap flights from Grand Island to Ontario (GRI - ONT)

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 5/22. Fares are subject to change and may not be available on all flights or dates of travel.
GRI — ONT
Feb 28 — Mar 71
Sat 2/28
Sat 3/7
1 adult, Economy
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Cheap flight deals from Grand Island to Ontario

Cheapest flights from Grand Island to Ontario
Explore the most affordable flight options available from Grand Island to Ontario. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 29, 2026.

This American Airlines deal was found by Cheapflights users on 1/26. 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.
Fri 5/226:13 pm
GRI
-
ONT
1 stop7h 46m
American Airlines
Mon 5/252:22 pm
ONT
-
GRI
1 stop7h 04m
American Airlines
Deal found 1/26$666
This American Airlines deal was found by Cheapflights users on 1/26. 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.
Sun 2/226:22 pm
GRI
-
ONT
1 stop21h 27m
American Airlines
Tue 2/246:00 am
ONT
-
GRI
1 stop15h 34m
American Airlines
Deal found 1/26$879

Find flight deals from Grand Island to Ontario

Discover tips and strategies to find the most affordable flight options for your journey from Grand Island (GRI) 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 January 29, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$666
(American Airlines)
Provider with most accurate pricing for Grand Island-Ontario flight deals.
Search Deals
Provider most trusted by Cheapflights users for Grand Island-Ontario flights.
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From Grand Island to Ontario
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Cheapflights Fare Finder

 
Customize your flight search to find flights from Grand Island 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 January 29, 2026.
Use the filters below to find and compare flights from Grand Island to Ontario that are best for you.

Fly from

Grand Island

Fly to

Ontario

Route

Depart

Return

Price

Grand IslandOntario

GRI - ONT

GRIONT

Grand Island

Fri 5/22

6:13 pm-11:59 pm

1 stop7h 46m

Ontario

Mon 5/25

2:22 pm-11:26 pm

1 stop7h 04m

$666

Grand IslandOntario

GRI - ONT

GRIONT

Grand Island

Sun 2/22

6:22 pm-1:49 pm

1 stop21h 27m

Ontario

Tue 2/24

6:00 am-11:34 pm

1 stop15h 34m

$879

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/26

Compare providers for flights from Grand Island 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 Grand Island to Ontario in January.
ProviderPrice AccuracyTrust Score*
FlightHubPrice Accuracy3 starsTrust Score*3 stars
ExpediaPrice Accuracy1 starTrust 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 Grand Island-Ontario flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Grand Island-Ontario flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Grand Island-Ontario flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Grand Island-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 Grand Island-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 Grand Island to Ontario

Have a flexible travel schedule? Discover the best time to fly to Ontario from Grand Island 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 Grand Island to Ontario

What is the cheapest month to book a flight from Grand Island to Ontario?

Currently, September is the cheapest month in which you can book a flight from Grand Island to Ontario (average of $277). Flying from Grand Island to Ontario in December is currently the most expensive (average of $452). 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.

Related info for your journey

Find useful and relevant information for your journey from Grand Island to Ontario. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from Grand Island to Ontario?

    Departing from Grand Island to Ontario will take you 7h 46m. The distance from Grand Island to Ontario is about 1156 mi.

  • Can I find deals for flights from Grand Island to Ontario that include hotel bookings?

    Yes. In addition to deals on Grand Island to Ontario flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Grand Island to Ontario?

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

  • Can I find deals for business class flights from Grand Island to Ontario?

    Yes. Cheapflights offers flight deals from Grand Island 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 Grand Island to Ontario?

    Currently, September is the cheapest month in which you can book a flight from Grand Island to Ontario (average of $277). Flying from Grand Island to Ontario in December is currently the most expensive (average of $452). 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.

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