$284+ 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 10/30. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — GJT
Nov 3 — Nov 101
Round-trip
1 adult, Economy
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Find cheap flights from Ontario to Grand Junction 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 Ontario to Grand Junction
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Best
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One-way
Cheapest flights from Ontario to Grand JunctionExplore 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 October 4, 2026.
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 October 4, 2026.
This Kiwi.com deal was found by Cheapflights users on 10/1. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/245:25 pm -
1 stop18h 05m
Sun 11/11:10 pm -
1 stop23h 06m
Deal found 10/1![Multiple Airlines logo]()
$336
This United Airlines deal was found by Cheapflights users on 10/3. 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 11/35:00 am -
1 stop4h 47m
Tue 11/107:00 am -
1 stop6h 33m
Deal found 10/3![United Airlines logo]()
$339
This Delta deal was found by Cheapflights users on 9/30. 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 11/76:00 am -
1 stop5h 30m
Wed 11/111:16 pm -
2 stops10h 44m
Deal found 9/30![Delta logo]()
$344
This United Airlines deal was found by Cheapflights users on 9/30. 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.
Sun 10/255:00 am -
1 stop6h 45m
Sun 11/17:00 am -
1 stop6h 33m
Deal found 9/30![United Airlines logo]()
$365
This United Airlines deal was found by Cheapflights users on 10/1. 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.
Sat 10/2411:10 am -
2 stops9h 56m
Sun 11/17:00 am -
1 stop6h 33m
Deal found 10/1![United Airlines logo]()
$366
This American Airlines deal was found by Cheapflights users on 9/29. 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.
Tue 10/131:05 pm -
1 stop4h 36m
Sun 10/186:00 am -
1 stop4h 10m
Deal found 9/29![American Airlines logo]()
$369
This American Airlines deal was found by Cheapflights users on 10/1. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/246:15 am -
1 stop4h 21m
Sun 11/16:48 pm -
1 stop4h 05m
Deal found 10/1![American Airlines logo]()
$372
This American Airlines deal was found by Cheapflights users on 9/30. 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 11/76:30 am -
1 stop3h 58m
Wed 11/116:00 am -
1 stop4h 00m
Deal found 9/30![American Airlines logo]()
$376
This United Airlines deal was found by Cheapflights users on 10/1. 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.
Fri 10/165:00 am -
1 stop6h 31m
Tue 10/207:00 am -
1 stop6h 46m
Deal found 10/1![United Airlines logo]()
$391
Best flights from Ontario to Grand JunctionDiscover carefully curated flight deals from Ontario to Grand Junction that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated October 4, 2026.
Discover carefully curated flight deals from Ontario to Grand Junction that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated October 4, 2026.
This United Airlines deal was found by Cheapflights users on 10/3. 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 11/35:00 am -
1 stop4h 47m
Tue 11/107:00 am -
1 stop6h 33m
Deal found 10/3![United Airlines logo]()
$339
This Delta deal was found by Cheapflights users on 10/2. 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.
Sat 11/76:00 am -
1 stop5h 30m
Wed 11/111:16 pm -
2 stops10h 44m
Deal found 10/2![Delta logo]()
$344
This American Airlines deal was found by Cheapflights users on 10/2. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/76:30 am -
1 stop3h 58m
Wed 11/116:00 am -
1 stop4h 00m
Deal found 10/2![American Airlines logo]()
$376
This United Airlines deal was found by Cheapflights users on 10/1. 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.
Sat 10/2411:10 am -
2 stops9h 56m
Sun 11/17:00 am -
1 stop6h 33m
Deal found 10/1![United Airlines logo]()
$366
This United Airlines deal was found by Cheapflights users on 9/30. 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.
Sun 10/255:00 am -
1 stop6h 45m
Sun 11/15:30 am -
2 stops7h 59m
Deal found 9/30![United Airlines logo]()
$377
This United Airlines deal was found by Cheapflights users on 10/1. 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.
Fri 10/165:00 am -
1 stop6h 31m
Tue 10/207:00 am -
1 stop6h 46m
Deal found 10/1![United Airlines logo]()
$391
This United Airlines deal was found by Cheapflights users on 10/3. 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 11/41:29 pm -
1 stop7h 30m
Sat 11/77:00 am -
1 stop6h 33m
Deal found 10/3![United Airlines logo]()
$439
Last-minute flights from Ontario to Grand JunctionDiscover last-minute flight deals from Ontario to Grand Junction. Data last updated October 4, 2026 and is based on user searches.
Discover last-minute flight deals from Ontario to Grand Junction. Data last updated October 4, 2026 and is based on user searches.
This American Airlines deal was found by Cheapflights users on 9/29. 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.
Tue 10/131:05 pm -
1 stop4h 36m
Sun 10/186:00 am -
1 stop4h 10m
Deal found 9/29![American Airlines logo]()
$369
This United Airlines deal was found by Cheapflights users on 10/1. 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.
Fri 10/165:00 am -
1 stop6h 31m
Tue 10/207:00 am -
1 stop6h 46m
Deal found 10/1![United Airlines logo]()
$391
This Kiwi.com deal was found by Cheapflights users on 10/1. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/245:25 pm -
1 stop18h 05m
Sun 11/11:10 pm -
1 stop23h 06m
Deal found 10/1![Multiple Airlines logo]()
$336
This United Airlines deal was found by Cheapflights users on 10/1. 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.
Sat 10/2411:10 am -
2 stops9h 56m
Sun 11/17:00 am -
1 stop6h 33m
Deal found 10/1![United Airlines logo]()
$366
This American Airlines deal was found by Cheapflights users on 10/1. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/246:15 am -
1 stop4h 21m
Sun 11/16:48 pm -
1 stop4h 05m
Deal found 10/1![American Airlines logo]()
$372
This United Airlines deal was found by Cheapflights users on 9/30. 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.
Sun 10/255:00 am -
1 stop6h 45m
Sun 11/17:00 am -
1 stop6h 33m
Deal found 9/30![United Airlines logo]()
$365
This United Airlines deal was found by Cheapflights users on 10/3. 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 11/35:00 am -
1 stop4h 47m
Tue 11/107:00 am -
1 stop6h 33m
Deal found 10/3![United Airlines logo]()
$339
This Delta deal was found by Cheapflights users on 9/30. 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 11/76:00 am -
1 stop5h 30m
Wed 11/111:16 pm -
2 stops10h 44m
Deal found 9/30![Delta logo]()
$344
This American Airlines deal was found by Cheapflights users on 9/30. 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 11/76:30 am -
1 stop3h 58m
Wed 11/116:00 am -
1 stop4h 00m
Deal found 9/30![American Airlines logo]()
$376
One-way flights from Ontario to Grand JunctionSearch for one-way flight options from Ontario to Grand Junction. Find affordable one-way fares based on user searches. Data last updated October 4, 2026.
Search for one-way flight options from Ontario to Grand Junction. Find affordable one-way fares based on user searches. Data last updated October 4, 2026.
This United Airlines deal was found by Cheapflights users on 9/30. 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 10/305:00 am -
1 stop6h 45m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/30![United Airlines logo]()
$284
This United Airlines deal was found by Cheapflights users on 9/30. 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.
Sun 10/111:24 pm -
1 stop6h 06m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/30![United Airlines logo]()
$402
This United Airlines deal was found by Cheapflights users on 9/30. 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 10/126:07 am -
2 stops10h 24m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/30![United Airlines logo]()
$685
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 October 4, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $336 (Kiwi.com) |
One-way from | $284 (United Airlines) |
Popular in | September |
Cheapest in | January |
Average price | $378 |
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 7,457,451 searches. Data last updated October 4, 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
Cheapest round-trip
OntarioGrand Junction
ONT Ontario - GJT Grand Junction Regnl
ONTGJT
Ontario
Tue 11/3
5:00 am-10:47 am
1 stop4h 47m
Grand Junction Regnl
Tue 11/10
7:00 am-12:33 pm
1 stop6h 33m
$339
OntarioGrand Junction
ONT Ontario - GJT Grand Junction Regnl
ONTGJT
Ontario
Sat 11/7
6:00 am-12:30 pm
1 stop5h 30m
Grand Junction Regnl
Wed 11/11
1:16 pm-11:00 pm
2 stops10h 44m
$344
OntarioGrand Junction
ONT Ontario - GJT Grand Junction Regnl
ONTGJT
Ontario
Sat 10/24
11:10 am-10:06 pm
2 stops9h 56m
Grand Junction Regnl
Sun 11/1
7:00 am-12:33 pm
1 stop6h 33m
$366
OntarioGrand Junction
ONT Ontario - GJT Grand Junction Regnl
ONTGJT
Ontario
Sat 11/7
6:30 am-11:28 am
1 stop3h 58m
Grand Junction Regnl
Wed 11/11
6:00 am-9:00 am
1 stop4h 00m
$376
OntarioGrand Junction
ONT Ontario - GJT Grand Junction Regnl
ONTGJT
Ontario
Sun 10/25
5:00 am-12:45 pm
1 stop6h 45m
Grand Junction Regnl
Sun 11/1
5:30 am-12:29 pm
2 stops7h 59m
$377
OntarioGrand Junction
ONT Ontario - GJT Grand Junction Regnl
ONTGJT
Ontario
Fri 10/16
5:00 am-12:31 pm
1 stop6h 31m
Grand Junction Regnl
Tue 10/20
7:00 am-12:46 pm
1 stop6h 46m
$391
OntarioGrand Junction
ONT Ontario - GJT Grand Junction Regnl
ONTGJT
Ontario
Sun 10/11
1:24 pm-8:30 pm
1 stop6h 06m
Grand Junction Regnl
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$402
Quickest round-trip
OntarioGrand Junction
ONT Ontario - GJT Grand Junction Regnl
ONTGJT
Ontario
Mon 10/12
6:00 am-12:30 pm
1 stop5h 30m
Grand Junction Regnl
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$402
OntarioGrand Junction
ONT Ontario - GJT Grand Junction Regnl
ONTGJT
Ontario
Wed 11/4
1:29 pm-9:59 pm
1 stop7h 30m
Grand Junction Regnl
Sat 11/7
7:00 am-12:33 pm
1 stop6h 33m
$439
OntarioGrand Junction
ONT Ontario - GJT Grand Junction Regnl
ONTGJT
Ontario
Mon 10/12
6:07 am-5:31 pm
2 stops10h 24m
Grand Junction Regnl
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$685
Sorted by cheapest first
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 October.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars |
- 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.
ONT-GJT
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 October 4, 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.
Comfort
7.2
Food
6.4
Entertainment
6.8
Crew
7.9
Boarding
7.4
Overall
7.0
Reviews
1 / 20
2.0
MediocreJeremy,Sep 2025
SAN - PHL
Comfort
7.2
Food
6.4
Entertainment
6.8
Crew
7.9
Boarding
7.4
Overall
7.0
Reviews
1 / 20
2.0
MediocreJeremy,Sep 2025
SAN - PHL
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.
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Other flights to Grand Junction
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Ontario and Grand Junction flights
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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 7,457,451 searches. Data last updated October 4, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$211 | Average$391 | FlexibilityNo cancel fee | On-time71% |