What is the cheapest airline that flies from Ontario to Grand Junction Regnl?

United Airlines, Delta, and American Airlines are the most popular carriers operating from Ontario to Grand Junction Regnl

What airlines fly to Grand Junction?

United Airlines, Delta and American Airlines are the top three most popular airlines that fly to Grand Junction from Ontario according to our data. United Airlines is the first choice among our users, with 56% of people opting to fly with this airline when traveling to Grand Junction. Keep in mind that there are 6 different airlines that fly to Grand Junction on a routine basis, so you have a few additional options to choose from.

When did momondo last update prices for flights from Ontario Airport to Grand Junction Regnl Airport?

Prices for flights from Ontario Airport to Grand Junction Regnl Airport were last updated today.

How many operators does momondo search for flights from Ontario Airport to Grand Junction Regnl Airport?

As of November 2025, there are 2 operators available to choose from for flights from Ontario Airport to Grand Junction Regnl Airport.

How old do you have to be to fly from Ontario Airport to Grand Junction Regnl Airport?

The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Ontario Airport to Grand Junction Regnl Airport.

What documentation or ID do you need to fly to Grand Junction Regnl Airport?

The necessary travel and health documents for your Grand Junction Regnl Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

$98 Cheap Flights from Ontario to Grand Junction in 2025/26

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Find the cheapest flights from Ontario to Grand Junction

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Cheap round-trip flights

Enter your travel dates to find the best prices.

4:59 pm - 10:48 pmONT-GJT

4h 49m1 stop

7:12 am - 11:41 amGJT-ONT

5h 29m1 stop

$211American Airlines

Find Deal

jue., feb. 19 - lun., feb. 23

1:34 pm - 8:25 pmONT-GJT

5h 51m1 stop

7:15 am - 12:32 pmGJT-ONT

6h 17m1 stop

$279United Airlines

Find Deal

jue., dic. 4 - lun., dic. 8

5:05 am - 10:49 amONT-GJT

4h 44m1 stop

7:15 am - 12:32 pmGJT-ONT

6h 17m1 stop

$281United Airlines

Find Deal

vie., dic. 5 - mar., dic. 9

5:05 am - 12:40 pmONT-GJT

6h 35m1 stop

5:30 am - 12:17 pmGJT-ONT

7h 47m2 stops

$284United Airlines

Find Deal

mar., ene. 6 - sáb., ene. 10

1:34 pm - 8:25 pmONT-GJT

5h 51m1 stop

5:30 am - 12:17 pmGJT-ONT

7h 47m2 stops

$286United Airlines

Find Deal

vie., dic. 5 - mar., dic. 9

1:53 pm - 10:27 pmONT-GJT

7h 34m2 stops

1:38 pm - 10:53 pmGJT-ONT

10h 15m2 stops

$289United Airlines

Find Deal

mar., ene. 6 - sáb., ene. 10

9:53 am - 10:26 pmONT-GJT

11h 33m2 stops

7:12 am - 11:41 amGJT-ONT

5h 29m1 stop

$290American Airlines

Find Deal

jue., feb. 19 - lun., feb. 23

5:05 am - 10:52 amONT-GJT

4h 47m1 stop

7:00 am - 12:38 pmGJT-ONT

6h 38m1 stop

$325United Airlines

Find Deal

lun., dic. 29 - jue., ene. 1

1:34 pm - 8:25 pmONT-GJT

5h 51m1 stop

3:12 pm - 9:07 pmGJT-ONT

6h 55m1 stop

$330United Airlines

Find Deal

mar., dic. 16 - dom., dic. 21

1:50 pm - 10:13 pmONT-GJT

7h 23m2 stops

3:12 pm - 9:07 pmGJT-ONT

6h 55m1 stop

$335United Airlines

Find Deal

mar., dic. 16 - dom., dic. 21

United Airlines flights from Ontario to Grand Junction

Our best United Airlines deals on Ontario to Grand Junction flight tickets

United Airlines

Dec 4

ONT1:34 pmOntario

5h 51m

1 stop

GJT8:25 pmGrand Junction Regnl

Dec 8

GJT7:15 amGrand Junction Regnl

6h 17m

1 stop

ONT12:32 pmOntario

$279

Find similar

United Airlines

Dec 5

ONT5:05 amOntario

4h 44m

1 stop

GJT10:49 amGrand Junction Regnl

Dec 9

GJT7:15 amGrand Junction Regnl

6h 17m

1 stop

ONT12:32 pmOntario

$281

Find similar

United Airlines

Jan 6

ONT5:05 amOntario

6h 35m

1 stop

GJT12:40 pmGrand Junction Regnl

Jan 10

GJT5:30 amGrand Junction Regnl

7h 47m

2 stops

ONT12:17 pmOntario

$284

Find similar

American Airlines flights from Ontario to Grand Junction

Our best American Airlines deals on Ontario to Grand Junction flight tickets

American Airlines

Dec 4

ONT12:55 pmOntario

4h 26m

1 stop

GJT6:21 pmGrand Junction Regnl

Dec 7

GJT12:10 pmGrand Junction Regnl

4h 52m

1 stop

ONT4:02 pmOntario

$211

Find similar

American Airlines

Feb 19

ONT9:53 amOntario

11h 33m

2 stops

GJT10:26 pmGrand Junction Regnl

Feb 23

GJT7:12 amGrand Junction Regnl

5h 29m

1 stop

ONT11:41 amOntario

$290

Find similar

Fly from

Fly to

Route

Depart

Return

Price

OntarioGrand Junction

ONT - GJT

ONTGJT

Ontario

jue. 2/19

4:59 pm-10:48 pm

1 stop4h 49m

Grand Junction Regnl

lun. 2/23

7:12 am-11:41 am

1 stop5h 29m

$211

OntarioGrand Junction

ONT - GJT

ONTGJT

Ontario

jue. 12/4

1:34 pm-8:25 pm

1 stop5h 51m

Grand Junction Regnl

lun. 12/8

7:15 am-12:32 pm

1 stop6h 17m

$279

OntarioGrand Junction

ONT - GJT

ONTGJT

Ontario

vie. 12/5

5:05 am-10:49 am

1 stop4h 44m

Grand Junction Regnl

mar. 12/9

7:15 am-12:32 pm

1 stop6h 17m

$281

OntarioGrand Junction

ONT - GJT

ONTGJT

Ontario

mar. 1/6

5:05 am-12:40 pm

1 stop6h 35m

Grand Junction Regnl

sáb. 1/10

5:30 am-12:17 pm

2 stops7h 47m

$284

OntarioGrand Junction

ONT - GJT

ONTGJT

Ontario

vie. 12/5

1:34 pm-8:25 pm

1 stop5h 51m

Grand Junction Regnl

mar. 12/9

5:30 am-12:17 pm

2 stops7h 47m

$286

OntarioGrand Junction

ONT - GJT

ONTGJT

Ontario

mar. 1/6

1:53 pm-10:27 pm

2 stops7h 34m

Grand Junction Regnl

sáb. 1/10

1:38 pm-10:53 pm

2 stops10h 15m

$289

OntarioGrand Junction

ONT - GJT

ONTGJT

Ontario

jue. 2/19

9:53 am-10:26 pm

2 stops11h 33m

Grand Junction Regnl

lun. 2/23

7:12 am-11:41 am

1 stop5h 29m

$290

OntarioGrand Junction

ONT - GJT

ONTGJT

Ontario

lun. 12/29

5:05 am-10:52 am

1 stop4h 47m

Grand Junction Regnl

jue. 1/1

7:00 am-12:38 pm

1 stop6h 38m

$325

OntarioGrand Junction

ONT - GJT

ONTGJT

Ontario

mar. 12/16

1:34 pm-8:25 pm

1 stop5h 51m

Grand Junction Regnl

dom. 12/21

3:12 pm-9:07 pm

1 stop6h 55m

$330

OntarioGrand Junction

ONT - GJT

ONTGJT

Ontario

mar. 12/16

1:50 pm-10:13 pm

2 stops7h 23m

Grand Junction Regnl

dom. 12/21

3:12 pm-9:07 pm

1 stop6h 55m

$335

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 19 resultsSorted by cheapest first

How to get the cheapest flight ticket from Ontario to Grand Junction

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

Prices

Airlines

What is the cheapest month to fly to Grand Junction?

The cheapest month to fly to Grand Junction from Ontario is in August. Flight prices, which tend to average around $288, are often lower during this time because this is during the off-season. If you aren’t able to travel to Grand Junction during the month of August, then flying in September is also cheap. Prices for this month can be found on momondo for an average of $297.

What is the cheapest day to depart on your flight to Grand Junction?

On average, the least expensive day to fly to Grand Junction from Ontario is on a Thursday. momondo users have found tickets for Thursday departures for as low as $57. However, this price may fluctuate depending on the airline, the season, and holidays. Flights from Ontario to Grand Junction on a Wednesday will generally be more expensive and average around $393. Keep in mind that these prices on both days could fluctuate depending on the season and the demand.

What is the cheapest time of day to depart on your flight to Grand Junction?

According to our data, the cheapest time of day to fly to Grand Junction is in the afternoon. momondo users have found flights departing from Ontario to Grand Junction in the afternoon for as low as $57. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. Flights at noon are often more expensive with an average ticket price of $426.

When to book flights from Ontario to Grand Junction

Are you open to changing your travel dates? Check out the ideal times to fly from Ontario to Grand Junction according to our flight data. Find out which month and days have the cheapest flights.

Estimated round-trip price

Cheap Ontario to Grand Junction (ONT to GJT) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Ontario to Grand Junction

Direct flights	None

There are no direct flights from Ontario to Grand Junction. There are no popular flight routes from Ontario to Grand Junction.

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How far is Ontario to Grand Junction Regnl by plane?
Ontario and Grand Junction Regnl are 611.0 mi apart from one another. Flights usually cover this in 4h 31m, depending on flying conditions and air traffic around both airports.
When did momondo last update prices for flights from Ontario Airport to Grand Junction Regnl Airport?
Prices for flights from Ontario Airport to Grand Junction Regnl Airport were last updated today.
How many operators does momondo search for flights from Ontario Airport to Grand Junction Regnl Airport?
As of November 2025, there are 2 operators available to choose from for flights from Ontario Airport to Grand Junction Regnl Airport.
How old do you have to be to fly from Ontario Airport to Grand Junction Regnl Airport?
The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Ontario Airport to Grand Junction Regnl Airport.
What documentation or ID do you need to fly to Grand Junction Regnl Airport?
The necessary travel and health documents for your Grand Junction Regnl Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.
What is the most popular airline from Ontario to Grand Junction?
momondo data reveals that the most frequently booked airline on the route from Ontario to Grand Junction is American Airlines, representing 82% of all bookings. The subsequent popular airline is Delta at 18%.

Best airlines flying from Ontario to Grand Junction

Compare and see reviews for airlines that fly from Ontario to Grand Junction with momondo

Airline	Rating	Free Cancellation	Price
Delta	PriceFrom $219	Free Cancellation	Rating 7.9 8,002 reviews		Search Delta flights
American Airlines	PriceFrom $278	Free Cancellation	Rating 7.2 11,047 reviews		Search American Airlines flights

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Parachute

Why use momondo?

Why should I use momondo to find a flight deal from Ontario to Grand Junction?

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from Ontario to Grand Junction. Millions of users trust and use momondo every year so you are in good hands.

Can I find flights from Ontario to Grand Junction with flexible booking policies on momondo?

momondo does allow users to show only those flights to Grand Junction from Ontario which offer a flexible booking policy as well as other useful filters and features.

How can momondo help me find flights from Ontario to Grand Junction?

Once all potential Ontario to Grand Junction flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

I’m not ready to book a flight from Ontario to Grand Junction right now. Can momondo alert me if prices change?

If you are not ready to book a flight from Ontario to Grand Junction now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Grand Junction and let you know when they change.