How long is the flight from Ontario to Grand Junction?

A quick flight from Ontario to Grand Junction can take about 3h 52m. Delta 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.

In terms of precipitation, rainfall in Grand Junction ranges from 0.5 - 1.2 inches per month. September is typically the wettest month, when rainfall can reach 1.2 in. February is typically the driest time to visit Grand Junction when rainfall is around 0.5 in.

If weather is an important factor for your trip to Grand Junction, use this chart to help with planning. For those seeking warmer temperatures, July 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 January, when temperatures are typically at their lowest (around 26.6 F).

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.

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.

$200+ Flights from Ontario to Grand Junction

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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 18, 2025.

Wed 12/245:05 amONT - GJT

1 stop4h 47mUnited Airlines

Sun 12/283:12 pmGJT - ONT

1 stop6h 55mUnited Airlines

Deal found 12/15

$329

Thu 12/256:00 amONT - GJT

1 stop5h 46mMultiple Airlines

Sun 12/281:26 pmGJT - ONT

1 stop5h 16mMultiple Airlines

Deal found 12/15

$331

Wed 12/246:00 pmONT - GJT

1 stop17h 46mMultiple Airlines

Sun 12/281:26 pmGJT - ONT

1 stop5h 16mMultiple Airlines

Deal found 12/15

$377

Wed 12/2412:55 pmONT - GJT

1 stop4h 13mAmerican Airlines

Sun 12/286:44 pmGJT - ONT

1 stop4h 08mAmerican Airlines

Deal found 12/17

$440

Thu 12/255:05 amONT - GJT

1 stop6h 33mUnited Airlines

Sun 12/287:00 amGJT - ONT

1 stop6h 38mUnited Airlines

Deal found 12/16

$448

Best flights from Ontario to Grand Junction
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 December 18, 2025.

Fri 1/235:10 pmONT - GJT

1 stop3h 52mDelta

Sat 1/247:40 amGJT - ONT

1 stop5h 36mDelta

Deal found 12/15

$211

Wed 1/281:24 pmONT - GJT

1 stop6h 14mUnited Airlines

Sat 1/313:21 pmGJT - ONT

1 stop6h 37mUnited Airlines

Deal found 12/14

$281

Thu 1/295:10 pmONT - GJT

1 stop3h 52mDelta

Thu 2/57:40 amGJT - ONT

1 stop5h 36mDelta

Deal found 12/15

$211

Fri 1/235:05 amONT - GJT

1 stop6h 35mUnited Airlines

Sat 1/241:38 pmGJT - ONT

2 stops10h 15mUnited Airlines

Deal found 12/15

$286

Fri 1/235:05 amONT - GJT

1 stop4h 49mUnited Airlines

Fri 1/301:38 pmGJT - ONT

2 stops10h 15mUnited Airlines

Deal found 12/15

$341

Fri 1/235:05 amONT - GJT

1 stop6h 35mUnited Airlines

Mon 1/263:21 pmGJT - ONT

1 stop6h 37mUnited Airlines

Deal found 12/16

$345

Last-minute flights from Ontario to Grand Junction
Discover last-minute flight deals from Ontario to Grand Junction. Data last updated December 18, 2025 and is based on user searches.

Wed 12/245:05 amONT - GJT

1 stop4h 47mUnited Airlines

Sun 12/283:12 pmGJT - ONT

1 stop6h 55mUnited Airlines

Deal found 12/15

$329

Thu 12/256:00 amONT - GJT

1 stop5h 46mMultiple Airlines

Sun 12/281:26 pmGJT - ONT

1 stop5h 16mMultiple Airlines

Deal found 12/15

$331

Thu 1/15:05 amONT - GJT

1 stop6h 33mUnited Airlines

Mon 1/53:12 pmGJT - ONT

1 stop6h 56mUnited Airlines

Deal found 12/17

$365

Sat 1/171:53 pmONT - GJT

2 stops7h 34mUnited Airlines

Mon 1/196:10 pmGJT - ONT

1 stop27h 48mUnited Airlines

Deal found 12/16

$370

Fri 1/235:10 pmONT - GJT

1 stop3h 52mDelta

Sat 1/247:40 amGJT - ONT

1 stop5h 36mDelta

Deal found 12/15

$211

Fri 1/235:05 amONT - GJT

1 stop4h 49mUnited Airlines

Fri 1/301:38 pmGJT - ONT

2 stops10h 15mUnited Airlines

Deal found 12/15

$341

Fri 1/235:05 amONT - GJT

1 stop6h 35mUnited Airlines

Mon 1/263:21 pmGJT - ONT

1 stop6h 37mUnited Airlines

Deal found 12/16

$345

Fri 1/231:53 pmONT - GJT

2 stops7h 34mUnited Airlines

Sat 1/241:38 pmGJT - ONT

2 stops10h 15mUnited Airlines

Deal found 12/15

$375

Wed 1/281:24 pmONT - GJT

1 stop6h 14mUnited Airlines

Sat 1/313:21 pmGJT - ONT

1 stop6h 37mUnited Airlines

Deal found 12/15

$281

One-way flights from Ontario to Grand Junction
Search for one-way flight options from Ontario to Grand Junction. Find affordable one-way fares based on user searches. Data last updated December 18, 2025.

Thu 1/155:05 amONT - GJT

1 stop4h 49mUnited Airlines

Deal found 12/17

$235

Sat 1/176:00 amONT - GJT

2 stops9h 54mUnited Airlines

Deal found 12/16

$240

Fri 1/236:00 amONT - GJT

3 stops13h 38mUnited Airlines

Deal found 12/16

$359

Find flight deals from Ontario to Grand Junction

Most accurate provider	eDreams 3 stars
Most trusted provider	eDreams 3 stars
Round-trip from	$211 (Delta)
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

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

OntarioGrand Junction

ONT - GJT

ONTGJT

Ontario

Fri 1/23

5:10 pm-10:02 pm

1 stop3h 52m

Grand Junction Regnl

Sat 1/24

7:40 am-12:16 pm

1 stop5h 36m

$211

OntarioGrand Junction

ONT - GJT

ONTGJT

Ontario

Thu 1/29

5:10 pm-10:02 pm

1 stop3h 52m

Grand Junction Regnl

Thu 2/5

7:40 am-12:16 pm

1 stop5h 36m

$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

Fri 1/23

5:05 am-12:40 pm

1 stop6h 35m

Grand Junction Regnl

Sat 1/24

1:38 pm-10:53 pm

2 stops10h 15m

$286

OntarioGrand Junction

ONT - GJT

ONTGJT

Ontario

Fri 1/23

5:05 am-10:54 am

1 stop4h 49m

Grand Junction Regnl

Fri 1/30

1:38 pm-10:53 pm

2 stops10h 15m

$341

OntarioGrand Junction

ONT - GJT

ONTGJT

Ontario

Fri 1/23

5:05 am-12:40 pm

1 stop6h 35m

Grand Junction Regnl

Mon 1/26

3:21 pm-8:58 pm

1 stop6h 37m

$345

OntarioGrand Junction

ONT - GJT

ONTGJT

Ontario

Wed 4/1

5:09 pm-9:53 pm

1 stop3h 44m

$200

OntarioGrand Junction

ONT - GJT

ONTGJT

Ontario

Fri 1/23

1:24 pm-8:38 pm

1 stop6h 14m

$235

OntarioGrand Junction

ONT - GJT

ONTGJT

Ontario

Thu 1/15

5:05 am-10:54 am

1 stop4h 49m

$235

OntarioGrand Junction

ONT - GJT

ONTGJT

Ontario

Sat 1/17

5:05 am-10:54 am

1 stop4h 49m

$235

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/15

Showing 1-10 of 11 results

Compare providers for flights from Ontario to Grand Junction

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.

Provider	Price Accuracy	Trust Score*
Expedia	Price Accuracy2 stars	Trust Score*3 stars
eDreams	Price Accuracy3 stars	Trust Score*3 stars
FlightHub	Price Accuracy3 stars	Trust 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?

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

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

8,005 reviews

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

8,005 reviews

Delta

7.9

Good

8,005 reviews

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

11,054 reviews

Delta

7.9

Good

8,005 reviews

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

How long is the flight from Ontario to Grand Junction?
A quick flight from Ontario to Grand Junction can take about 3h 52m. Delta 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

Parachute

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Top 2 airlines flying from Ontario to Grand Junction

Airline	Cheapest	Average	Flexibility	On-time
Delta	Cheapest$219	Average$288	FlexibilityNo cancel fee	On-timeN/A
American Airlines	Cheapest$278	Average$384	FlexibilityNo cancel fee	On-time71%

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$200+ 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 4/1. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Ontario to Grand Junction with Cheapflights

1. Tell us where you want to go

2. Select your favorite providers

3. Compare prices and book

Cheap flight deals from Ontario to Grand Junction

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 December 18, 2025.

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 18, 2025.

Find flight deals from Ontario to Grand Junction

Most accurate provider

Most trusted provider

Round-trip from

Popular in

Cheapest in

Average price

Cheapflights Fare Finder

Use the filters below to find and compare flights from Ontario to Grand Junction that are best for you.

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.

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.

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?

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

Reviews of airlines servicing Grand Junction

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.

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?

What are the cheapest airlines flying from Ontario to Grand Junction round-trip?

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

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

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

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

Traveling to a place near Grand Junction?

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for Ontario to Grand Junction

See prices for flight routes from nearby airports that may be better suited for you.

Top 2 airlines flying from Ontario to Grand Junction

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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 18, 2025.