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Grand Junction

$269+ Cheap flights from Ontario to Grand Junction (ONT - GJT)

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 9/8. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — GJT
Sep 2 — Sep 91
Wed 9/2
Wed 9/9
1 adult, Economy
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Cheap flight deals from Ontario to Grand Junction

Cheapest flights from Ontario to Grand Junction
Explore the most affordable flight options available from Ontario to Grand Junction. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 3, 2026.

This Delta 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/15:05 pm
ONT
-
GJT
1 stop3h 51m
Delta
Wed 9/97:41 am
GJT
-
ONT
1 stop5h 33m
Delta
Deal found 8/1$319
This Delta 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/246:00 am
ONT
-
GJT
1 stop5h 30m
Delta
Sat 10/311:15 pm
GJT
-
ONT
2 stops10h 28m
Delta
Deal found 8/1$324
This American Airlines deal was found by Cheapflights users on 7/29. 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.
Wed 8/126:15 am
ONT
-
GJT
1 stop4h 22m
American Airlines
Sat 8/158:30 am
GJT
-
ONT
1 stop4h 33m
American Airlines
Deal found 7/29$349
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.
Sat 8/155:00 am
ONT
-
GJT
1 stop6h 38m
United Airlines
Wed 8/1911:19 am
GJT
-
ONT
2 stops9h 42m
United Airlines
Deal found 7/31$354
This Delta deal was found by Cheapflights users on 8/2. 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.
Wed 8/121:06 pm
ONT
-
GJT
1 stop4h 12m
Delta
Sat 8/157:41 am
GJT
-
ONT
1 stop5h 35m
Delta
Deal found 8/2$371
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.
Sat 10/175:00 am
ONT
-
GJT
1 stop6h 31m
United Airlines
Wed 10/211:34 pm
GJT
-
ONT
2 stops7h 57m
United Airlines
Deal found 7/31$373
This United 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/25:00 am
ONT
-
GJT
1 stop6h 38m
United Airlines
Sun 9/67:00 am
GJT
-
ONT
1 stop6h 50m
United Airlines
Deal found 8/1$399
This United Airlines deal was found by Cheapflights users on 7/29. 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.
Tue 10/275:00 am
ONT
-
GJT
1 stop4h 47m
United Airlines
Sat 10/317:00 am
GJT
-
ONT
2 stops12h 01m
United Airlines
Deal found 7/29$404

Find flight deals from Ontario to Grand Junction

Discover tips and strategies to find the most affordable flight options for your journey from Ontario (ONT) to Grand Junction (GJT). 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 3, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$319
(American Airlines)

One-way from

$269
(Kiwi.com)

Popular in

October

Cheapest in

January

Average price

$438
Provider with most accurate pricing for Ontario-Grand Junction Regnl flight deals.
Search Deals
Provider most trusted by Cheapflights users for Ontario-Grand Junction Regnl flights.
Search Deals
From Ontario to Grand Junction Regnl
Search Deals
One-way flight from Ontario to Grand Junction Regnl
Search Deals
Highest demand for flights based on searches. 5% potential increase in price ($20 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($11 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in August 2026
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Ontario to Grand Junction 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 3, 2026.
Use the filters below to find and compare flights from Ontario to Grand Junction that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip
Quickest round-trip

OntarioGrand Junction

ONT - GJT

ONTGJT

Ontario

Wed 8/12

1:06 pm-6:18 pm

1 stop4h 12m

Grand Junction Regnl

Sat 8/15

7:41 am-12:16 pm

1 stop5h 35m

$371

OntarioGrand Junction

ONT - GJT

ONTGJT

Ontario

Sat 10/17

5:00 am-12:31 pm

1 stop6h 31m

Grand Junction Regnl

Wed 10/21

1:34 pm-8:31 pm

2 stops7h 57m

$373

OntarioGrand Junction

ONT - GJT

ONTGJT

Ontario

Tue 10/27

5:00 am-10:47 am

1 stop4h 47m

Grand Junction Regnl

Sat 10/31

7:00 am-12:33 pm

1 stop6h 33m

$399

OntarioGrand Junction

ONT - GJT

ONTGJT

Ontario

Fri 8/14

1:18 pm-8:35 pm

1 stop6h 17m

Grand Junction Regnl

Tue 8/18

9:24 am-6:11 pm

2 stops9h 47m

$406

OntarioGrand Junction

ONT - GJT

ONTGJT

Ontario

Tue 9/1

6:08 am-5:26 pm

2 stops10h 18m

Grand Junction Regnl

Mon 9/7

7:00 am-12:50 pm

1 stop6h 50m

$415

OntarioGrand Junction

ONT - GJT

ONTGJT

Ontario

Fri 10/2

5:00 am-12:31 pm

1 stop6h 31m

Grand Junction Regnl

Sat 10/3

1:34 pm-10:51 pm

2 stops10h 17m

$437

OntarioGrand Junction

ONT - GJT

ONTGJT

Ontario

Sat 8/15

5:00 am-12:38 pm

1 stop6h 38m

Grand Junction Regnl

Sat 8/29

1:40 pm-8:01 pm

2 stops7h 21m

$439

OntarioGrand Junction

ONT - GJT

ONTGJT

Ontario

Sat 8/15

1:18 pm-8:35 pm

1 stop6h 17m

Grand Junction Regnl

Sun 8/16

3:12 pm-8:53 pm

1 stop6h 41m

$449
Cheapest one-way
Quickest one-way

OntarioGrand Junction

ONT - GJT

ONTGJT

Ontario

Mon 9/7

5:05 pm-9:56 pm

1 stop3h 51m

$274

OntarioGrand Junction

ONT - GJT

ONTGJT

Ontario

Sun 10/11

6:15 am-11:31 am

1 stop4h 16m

$274

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/31

Showing 1-10 of 16 resultsSorted by cheapest first
1
2

Compare providers for flights from Ontario to Grand Junction

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

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

Reviews of airlines servicing Grand Junction

Get insights into the airlines that provide service to Grand Junction. 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 Grand Junction. Reviews last updated August 3, 2026.
Peruse reviews from past customers who have flown with American Airlines from Ontario to Grand Junction to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
American Airlines
7.1
Good
11,846 reviews

Food

6.4

Crew

7.9

Overall

7.1

Comfort

7.2

Entertainment

6.8

Boarding

7.5

Reviews

1 / 20
2.0
Mediocre

Jeremy,Sep 2025

SAN - PHL

Terrible. Bad customer service and unacceptable delay on the tarmac
American Airlines
7.1
Good
11,846 reviews
American Airlines
7.1
Good
11,846 reviews

Food

6.4

Crew

7.9

Overall

7.1

Comfort

7.2

Entertainment

6.8

Boarding

7.5

Reviews

1 / 20
2.0
Mediocre

Jeremy,Sep 2025

SAN - PHL

Terrible. Bad customer service and unacceptable delay on the tarmac

Related info for your journey

Find useful and relevant information for your journey from Ontario to Grand Junction. 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 Ontario to Grand Junction?

    A quick flight from Ontario to Grand Junction can take about 4h 12m. Delta provides one of the quickest options available for as low as $371. Ontario and Grand Junction are separated by a distance of 612 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

  • What is the cheapest airline to fly from Ontario to Grand Junction round-trip?

    American Airlines, at $211, was found to be the cheapest airline from Ontario to Grand Junction.. Users have found that American Airlines is 42% cheaper than the other options available to this destination.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Ontario to Grand Junction by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

See more FAQs

Traveling to a place near Grand Junction?

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Top airline flying from Ontario to Grand Junction

Discover the top airline that operate flights from Ontario to Grand Junction. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated August 3, 2026.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$211Average$351FlexibilityNo cancel feeOn-time71%

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