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Grand Junction

$211+ Cheap flights from Ontario to Grand Junction (ONT - GJT)

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 1/28. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — GJT
Jan 7 — Jan 141
Wed 1/7
Wed 1/14
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 December 8, 2025.

This Kiwi.com deal was found by Cheapflights users on 12/6. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/216:00 amONT - GJT
1 stop5h 46mMultiple Airlines
Thu 12/251:26 pmGJT - ONT
1 stop4h 56mMultiple Airlines
Deal found 12/6$290
This United Airlines deal was found by Cheapflights users on 12/6. 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.
Thu 12/255:05 amONT - GJT
1 stop4h 47mUnited Airlines
Mon 12/293:12 pmGJT - ONT
1 stop6h 55mUnited Airlines
Deal found 12/6$365
This United Airlines deal was found by Cheapflights users on 12/6. 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 12/245:05 amONT - GJT
1 stop6h 33mUnited Airlines
Wed 12/317:00 amGJT - ONT
1 stop6h 38mUnited Airlines
Deal found 12/6$400
This United Airlines deal was found by Cheapflights users on 12/6. 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 12/245:05 amONT - GJT
1 stop6h 33mUnited Airlines
Sun 12/287:00 amGJT - ONT
1 stop6h 38mUnited Airlines
Deal found 12/6$423
This United Airlines deal was found by Cheapflights users on 12/6. 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 12/265:05 amONT - GJT
1 stop6h 33mUnited Airlines
Mon 12/293:12 pmGJT - ONT
1 stop6h 55mUnited Airlines
Deal found 12/6$449
This United Airlines deal was found by Cheapflights users on 12/6. 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.
Mon 12/295:05 amONT - GJT
1 stop6h 33mUnited Airlines
Mon 1/53:12 pmGJT - ONT
1 stop6h 56mUnited Airlines
Deal found 12/6$479
This United Airlines deal was found by Cheapflights users on 12/7. 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 12/235:05 amONT - GJT
1 stop6h 33mUnited Airlines
Sun 12/287:00 amGJT - ONT
1 stop6h 38mUnited Airlines
Deal found 12/7$488
This United Airlines deal was found by Cheapflights users on 12/5. 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 12/235:05 amONT - GJT
1 stop6h 33mUnited Airlines
Tue 12/303:12 pmGJT - ONT
1 stop6h 55mUnited Airlines
Deal found 12/5$508

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 December 8, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$211
(American Airlines)

Popular in

March

Cheapest in

August

Average price

$475
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
Highest demand for flights based on searches. 13% potential increase in price ($64 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 7% potential price decrease ($28 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in December 2025
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 December 8, 2025.
Use the filters below to find and compare flights from Ontario to Grand Junction that are best for you.

Fly from

Ontario

Fly to

Grand Junction

Route

Depart

Return

Price

OntarioGrand Junction

ONT - GJT

ONTGJT

Ontario

Wed 1/28

12:57 pm-6:19 pm

1 stop4h 22m

Grand Junction Regnl

Wed 2/4

7:06 am-12:03 pm

1 stop5h 57m

$211

OntarioGrand Junction

ONT - GJT

ONTGJT

Ontario

Wed 1/28

1:24 pm-8:38 pm

1 stop6h 14m

Grand Junction Regnl

Sat 1/31

3:21 pm-8:58 pm

1 stop6h 37m

$281

OntarioGrand Junction

ONT - GJT

ONTGJT

Ontario

Wed 1/28

1:24 pm-8:38 pm

1 stop6h 14m

Grand Junction Regnl

Wed 2/4

1:38 pm-10:53 pm

2 stops10h 15m

$286

OntarioGrand Junction

ONT - GJT

ONTGJT

Ontario

Sat 1/17

1:24 pm-8:18 pm

1 stop5h 54m

Grand Junction Regnl

Wed 1/21

7:00 am-12:47 pm

1 stop6h 47m

$365

OntarioGrand Junction

ONT - GJT

ONTGJT

Ontario

Thu 12/25

5:05 am-10:52 am

1 stop4h 47m

Grand Junction Regnl

Mon 12/29

3:12 pm-9:07 pm

1 stop6h 55m

$365

OntarioGrand Junction

ONT - GJT

ONTGJT

Ontario

Mon 12/22

6:20 am-11:45 am

1 stop4h 25m

$221

OntarioGrand Junction

ONT - GJT

ONTGJT

Ontario

Sun 1/4

5:05 am-12:38 pm

1 stop6h 33m

$226

OntarioGrand Junction

ONT - GJT

ONTGJT

Ontario

Mon 1/5

5:05 am-10:52 am

1 stop4h 47m

$226

OntarioGrand Junction

ONT - GJT

ONTGJT

Ontario

Thu 1/1

5:05 am-10:52 am

1 stop4h 47m

$235

OntarioGrand Junction

ONT - GJT

ONTGJT

Ontario

Thu 12/11

6:15 am-5:27 pm

2 stops10h 12m

$244

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/6

Showing 1-10 of 12 results
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 December.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy2 starsTrust Score*3 stars
eDreamsPrice Accuracy3 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*1 star

*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 eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Ontario-Grand Junction flight deals on Cheapflights vs. eDreams >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 eDreams the most. eDreams 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.

Cheapflights Insights

Everything you need to know about your flight from Ontario to Grand Junction

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

Currently, August is the cheapest month in which you can book a flight from Ontario to Grand Junction (average of $76). Flying from Ontario to Grand Junction in November is currently the most expensive (average of $207). 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.

What is the cheapest time of day to fly from ONT to GJT?

Find hourly flight availability from Ontario to Grand Junction. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated December 8, 2025.

When flying from Ontario to Grand Junction, the time of day you fly usually plays a role in the price. Save by searching for a flight at noon, which can drop the price by up to 34% versus a flight in the afternoon.

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 December 8, 2025.
Peruse reviews from past customers who have flown with Delta and 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.
Delta
7.9
Good
8,013 reviews

Boarding

8.1

Crew

8.5

Entertainment

7.9

Overall

7.9

Comfort

7.9

Food

7.3

Reviews

1 / 20
6.0
Good

Moishe,Oct 2024

LGA - DEN

The plane had a mechanical error that delayed us by almost an hour. On the positive side the captain kept us all in the know
Delta
7.9
Good
8,013 reviews
Delta
7.9
Good
8,013 reviews

Boarding

8.1

Crew

8.5

Entertainment

7.9

Overall

7.9

Comfort

7.9

Food

7.3

Reviews

1 / 20
6.0
Good

Moishe,Oct 2024

LGA - DEN

The plane had a mechanical error that delayed us by almost an hour. On the positive side the captain kept us all in the know
American Airlines
7.2
Good
11,042 reviews
Delta
7.9
Good
8,013 reviews

Boarding

8.1

Crew

8.5

Entertainment

7.9

Overall

7.9

Comfort

7.9

Food

7.3

Reviews

1 / 20
6.0
Good

Moishe,Oct 2024

LGA - DEN

The plane had a mechanical error that delayed us by almost an hour. On the positive side the captain kept us all in the know

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 22m. American Airlines provides one of the quickest options available for as low as $211. 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 are the cheapest airlines flying from Ontario to Grand Junction round-trip?

    Delta, at $219, was found to be the cheapest airline from Ontario to Grand Junction. An alternate airline flying to your destination would be American Airlines. Users have found that Delta is 45% 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.

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

    Currently, August is the cheapest month in which you can book a flight from Ontario to Grand Junction (average of $76). Flying from Ontario to Grand Junction in November is currently the most expensive (average of $207). 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

Traveling to a place near Grand Junction?

Book flights to Grand Junction if you plan to visit one of these locations
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Top 2 airlines flying from Ontario to Grand Junction

Discover the top 2 airlines 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 December 8, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$219Average$288FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$278Average$384FlexibilityNo cancel feeOn-time71%

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