What airlines fly to Ontario?

United Airlines, American Airlines and Delta are the top three most popular airlines that fly to Ontario from Grand Junction according to our data. United Airlines is the first choice among our users, with 38% of people opting to fly with this airline when traveling to Ontario. Keep in mind that there are 5 different airlines that fly to Ontario on a routine basis, so you have a few additional options to choose from.

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

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

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

Prices for flights from Grand Junction Regnl Airport to Ontario Airport refresh daily.

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

There are 2 operators available for flights from Grand Junction Regnl Airport to Ontario Airport as of August 2025.

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

What documentation or ID do you need to fly to Ontario Airport?

The necessary travel and health documents for your Ontario 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.

$181 Cheap Flights from Grand Junction to Ontario (GJT-ONT) in 2025

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Find the cheapest flights from Grand Junction to Los Angeles (GJT-ONT)

Round-trip

One-way

Last minute

Cheap round-trip flights

6:00 am - 8:55 amGJT-ONT

3h 55m1 stop

4:50 pm - 10:43 pmONT-GJT

4h 53m1 stop

$257Delta

Find Deal

Tue, Aug 26 - Wed, Aug 27

6:54 pm - 10:40 pmGJT-ONT

4h 46m1 stop

4:50 pm - 10:43 pmONT-GJT

4h 53m1 stop

$285Delta

Find Deal

Mon, Aug 25 - Wed, Aug 27

11:46 am - 4:05 pmGJT-ONT

5h 19m1 stop

4:45 pm - 12:14 amONT-GJT

6h 29m1 stop

$295American Airlines

Find Deal

Thu, Sep 18 - Thu, Sep 25

7:20 am - 12:32 pmGJT-ONT

6h 12m1 stop

1:15 pm - 8:16 pmONT-GJT

6h 01m1 stop

$299United Airlines

Find Deal

Sat, Sep 6 - Sat, Sep 13

5:38 am - 11:41 amGJT-ONT

7h 03m1 stop

6:37 am - 4:07 pmONT-GJT

8h 30m1 stop

$314American Airlines

Find Deal

Mon, Jan 19 - Sun, Jan 25

3:19 pm - 8:43 pmGJT-ONT

6h 24m1 stop

5:10 am - 10:50 amONT-GJT

4h 40m1 stop

$319United Airlines

Find Deal

Wed, Aug 27 - Sun, Aug 31

1:45 pm - 8:33 pmGJT-ONT

7h 48m2 stops

5:10 am - 12:36 pmONT-GJT

6h 26m1 stop

$324United Airlines

Find Deal

Sat, Aug 30 - Sun, Aug 31

5:55 am - 8:58 amGJT-ONT

4h 03m1 stop

4:40 pm - 10:34 pmONT-GJT

4h 54m1 stop

$340Delta

Find Deal

Wed, Sep 17 - Fri, Sep 19

4:40 pm - 10:33 pmGJT-ONT

6h 53m1 stop

4:45 pm - 12:00 pmONT-GJT

18h 15m2 stops

$370American Airlines

Find Deal

Wed, Sep 17 - Fri, Sep 19

6:58 pm - 9:39 pmGJT-ONT

3h 41m1 stop

12:47 pm - 9:01 pmONT-GJT

7h 14m1 stop

$373American Airlines

Find Deal

Sun, Aug 24 - Tue, Aug 26

United Airlines flights from Grand Junction to Ontario

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

United Airlines

Sep 6

GJT7:20 amGrand Junction Regnl

6h 12m

1 stop

ONT12:32 pmOntario

Sep 13

ONT1:15 pmOntario

6h 01m

1 stop

GJT8:16 pmGrand Junction Regnl

$299

Find similar

United Airlines

Aug 23

GJT11:00 amGrand Junction Regnl

10h 33m

2 stops

ONT8:33 pmOntario

Aug 26

ONT5:10 amOntario

4h 40m

1 stop

GJT10:50 amGrand Junction Regnl

$314

Find similar

United Airlines

Aug 27

GJT3:19 pmGrand Junction Regnl

6h 24m

1 stop

ONT8:43 pmOntario

Aug 31

ONT5:10 amOntario

4h 40m

1 stop

GJT10:50 amGrand Junction Regnl

$319

Find similar

Delta flights from Grand Junction to Ontario

Our best Delta deals on Grand Junction to Ontario flight tickets

Delta

Aug 23

GJT6:00 amGrand Junction Regnl

3h 55m

1 stop

ONT8:55 amOntario

Aug 27

ONT4:50 pmOntario

4h 53m

1 stop

GJT10:43 pmGrand Junction Regnl

$237

Find similar

Delta

Aug 26

GJT6:00 amGrand Junction Regnl

3h 55m

1 stop

ONT8:55 amOntario

Aug 27

ONT4:50 pmOntario

4h 53m

1 stop

GJT10:43 pmGrand Junction Regnl

$257

Find similar

Delta

Aug 21

GJT6:54 pmGrand Junction Regnl

5h 46m

1 stop

ONT11:40 pmOntario

Aug 27

ONT4:50 pmOntario

4h 53m

1 stop

GJT10:43 pmGrand Junction Regnl

$263

Find similar

Fly from

Fly to

Route

Depart

Return

Price

Grand JunctionOntario

GJT - ONT

GJTONT

Grand Junction Regnl

Tue 8/26

6:00 am-8:55 am

1 stop3h 55m

Ontario

Wed 8/27

4:50 pm-10:43 pm

1 stop4h 53m

$257

Grand JunctionOntario

GJT - ONT

GJTONT

Grand Junction Regnl

Mon 8/25

6:54 pm-10:40 pm

1 stop4h 46m

Ontario

Wed 8/27

4:50 pm-10:43 pm

1 stop4h 53m

$285

Grand JunctionOntario

GJT - ONT

GJTONT

Grand Junction Regnl

Thu 9/18

11:46 am-4:05 pm

1 stop5h 19m

Ontario

Thu 9/25

4:45 pm-12:14 am

1 stop6h 29m

$295

Grand JunctionOntario

GJT - ONT

GJTONT

Grand Junction Regnl

Sat 9/6

7:20 am-12:32 pm

1 stop6h 12m

Ontario

Sat 9/13

1:15 pm-8:16 pm

1 stop6h 01m

$299

Grand JunctionOntario

GJT - ONT

GJTONT

Grand Junction Regnl

Mon 1/19

5:38 am-11:41 am

1 stop7h 03m

Ontario

Sun 1/25

6:37 am-4:07 pm

1 stop8h 30m

$314

Grand JunctionOntario

GJT - ONT

GJTONT

Grand Junction Regnl

Wed 8/27

3:19 pm-8:43 pm

1 stop6h 24m

Ontario

Sun 8/31

5:10 am-10:50 am

1 stop4h 40m

$319

Grand JunctionOntario

GJT - ONT

GJTONT

Grand Junction Regnl

Sat 8/30

1:45 pm-8:33 pm

2 stops7h 48m

Ontario

Sun 8/31

5:10 am-12:36 pm

1 stop6h 26m

$324

Grand JunctionOntario

GJT - ONT

GJTONT

Grand Junction Regnl

Wed 9/17

5:55 am-8:58 am

1 stop4h 03m

Ontario

Fri 9/19

4:40 pm-10:34 pm

1 stop4h 54m

$340

Grand JunctionOntario

GJT - ONT

GJTONT

Grand Junction Regnl

Wed 9/17

4:40 pm-10:33 pm

1 stop6h 53m

Ontario

Fri 9/19

4:45 pm-12:00 pm

2 stops18h 15m

$370

Grand JunctionOntario

GJT - ONT

GJTONT

Grand Junction Regnl

Sun 8/24

6:58 pm-9:39 pm

1 stop3h 41m

Ontario

Tue 8/26

12:47 pm-9:01 pm

1 stop7h 14m

$373

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

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

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 day to depart on your flight to Ontario?

The cheapest day to depart on your flight to Ontario is on a Wednesday when prices can be found for as low as $361. This is often the case because there is less demand to fly during this day of the week. When flying out on a Friday, the most expensive travel day of the week, you can expect to see flight prices from Grand Junction to Ontario for around $468.

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

In the morning is the cheapest time of day to fly from Grand Junction to Ontario when you can find flight prices for as low as $391. Flying to Ontario in the morning is an ideal time because this is during off-peak travel hours. If you have a flexible travel schedule, then try to avoid flying in the evening when prices are $422 on average. Flights to Ontario from Grand Junction in the evening are generally more expensive because this time of day is more convenient for travelers’ schedules.

When to book flights from Grand Junction to Ontario

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

Estimated round-trip price

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

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

Best Price Found	$181
Fastest flight time	3h 41m
Direct flights	None
Airports in Ontario	1 airport

The best one-way flight to Ontario from Grand Junction in the past 72 hours is $181. The best round-trip flight deal from Grand Junction to Ontario found on momondo in the last 72 hours is $257.

The fastest flight from Grand Junction to Ontario takes 3h 41m

There are no direct flights from Grand Junction to Ontario. Popular non-direct route for this connection is Grand Junction Regnl Airport - Ontario Airport.

There is 1 airport near Ontario: Ontario (ONT)

Search flight deals

How far is Grand Junction Regnl to Ontario by plane?
The distance between Grand Junction Regnl and Ontario is about 611.0 mi. By plane, this route typically takes 3h 41m.
When did momondo last update prices for flights from Grand Junction Regnl Airport to Ontario Airport?
Prices for flights from Grand Junction Regnl Airport to Ontario Airport refresh daily.
How many operators does momondo search for flights from Grand Junction Regnl Airport to Ontario Airport?
There are 2 operators available for flights from Grand Junction Regnl Airport to Ontario Airport as of August 2025.
How old do you have to be to fly from Grand Junction Regnl Airport to Ontario 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 Grand Junction Regnl Airport to Ontario Airport.
What documentation or ID do you need to fly to Ontario Airport?
The necessary travel and health documents for your Ontario 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 Grand Junction to Ontario?
momondo data reveals that the most frequently booked airline on the route from Grand Junction to Ontario is American Airlines, representing 82% of all bookings. The subsequent popular airline is Delta at 18%.

Best airlines flying from Grand Junction to Ontario

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

Airline	Rating	Free Cancellation	Price
Delta	PriceFrom $256	Free Cancellation	Rating 8.0 7,980 reviews		Search Delta flights
American Airlines	PriceFrom $288	Free Cancellation	Rating 7.2 10,000 reviews		Search American Airlines flights

Why use momondo?

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

It is quick and easy to find Grand Junction to Ontario flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to Ontario that suits you.

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

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

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

momondo helps you find the best flight between Grand Junction and Ontario by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

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

Price alerts on flights to Ontario from Grand Junction are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.