GJT - ONT

$294 Find Cheap Flights from Grand Junction to Ontario - Compare and Save

1 adult
1 adult, Economy, 0 bags

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Everything you should know

Cheapest round-trip
$364
Typical prices: $318-$418
Delta
Mon 12/10Thu 12/13
GJT - ONT • 2 stops
Cheapest one-way
$294
Typical prices: $240-$395
American Airlines
Sun 12/23
GJT - ONT • 1 stop
Nonstop flights
Not available
There are currently no direct flights between Grand Junction and Ontario. You'll need to take a connecting flight to reach the destination.
Insights
Insights
When to travel
February
Cheapest • 44% price drop
June
Most popular
Good to know
+1
Good to know
+1
Top layover airports
Salt Lake City (SLC)
Cheapest • Avg $342 (round-trip)
Phoenix Sky Harbor Intl (PHX)
Shortest trip • 4h 44m (one-way)
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Insights
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Flight Deals

Cheap Flights from Grand Junction to Ontario (GJT-ONT)

 
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Grand Junction to Ontario

Thu, Dec 10 - Sun, Dec 13
Delta Logo
1:11 pm - 10:59 pmGJT  Grand Junction Regnl-ONT Ontario
10h 48m2 stops Salt Lake City Seattle/Tacoma Intl
Delta Logo
6:00 am - 12:36 pmONT  Ontario-GJT Grand Junction Regnl
5h 36m1 stop Salt Lake City
$364Delta
Wed, Nov 25 - Mon, Nov 30
American Airlines Logo
6:48 pm - 9:52 pmGJT  Grand Junction Regnl-ONT Ontario
4h 04m1 stop Phoenix Sky Harbor Intl
American Airlines Logo
7:45 pm - 12:26 amONT  Ontario-GJT Grand Junction Regnl
3h 41m1 stop Phoenix Sky Harbor Intl
$441American Airlines
Thu, Nov 26 - Tue, Dec 1
United Airlines Logo
7:00 am - 12:33 pmGJT  Grand Junction Regnl-ONT Ontario
6h 33m1 stop Denver Intl
United Airlines Logo
5:00 am - 12:27 pmONT  Ontario-GJT Grand Junction Regnl
6h 27m1 stop Denver Intl
$459United Airlines
Sat, Jan 23 - Tue, Jan 26
United Airlines Logo
7:00 am - 12:40 pmGJT  Grand Junction Regnl-ONT Ontario
6h 40m1 stop Denver Intl
United Airlines Logo
5:00 am - 12:35 pmONT  Ontario-GJT Grand Junction Regnl
6h 35m1 stop Denver Intl
$459United Airlines
Wed, Dec 23 - Mon, Dec 28
American Airlines Logo
6:48 pm - 9:57 pmGJT  Grand Junction Regnl-ONT Ontario
4h 09m1 stop Phoenix Sky Harbor Intl
American Airlines Logo
7:36 pm - 12:31 amONT  Ontario-GJT Grand Junction Regnl
3h 55m1 stop Phoenix Sky Harbor Intl
$459American Airlines
Thu, Dec 24 - Mon, Dec 28
American Airlines Logo
6:00 am - 8:45 amGJT  Grand Junction Regnl-ONT Ontario
3h 45m1 stop Phoenix Sky Harbor Intl
American Airlines Logo
7:36 pm - 12:31 amONT  Ontario-GJT Grand Junction Regnl
3h 55m1 stop Phoenix Sky Harbor Intl
$459American Airlines
Thu, Jan 7 - Thu, Jan 21
United Airlines Logo
3:15 pm - 9:00 pmGJT  Grand Junction Regnl-ONT Ontario
6h 45m1 stop Denver Intl
United Airlines Logo
5:00 am - 12:35 pmONT  Ontario-GJT Grand Junction Regnl
6h 35m1 stop Denver Intl
$459United Airlines
Sat, Jan 23 - Tue, Jan 26
United Airlines Logo
3:15 pm - 9:00 pmGJT  Grand Junction Regnl-ONT Ontario
6h 45m1 stop Denver Intl
United Airlines Logo
5:00 am - 12:35 pmONT  Ontario-GJT Grand Junction Regnl
6h 35m1 stop Denver Intl
$459United Airlines
Sun, Jan 24 - Sun, Feb 7
United Airlines Logo
3:15 pm - 9:00 pmGJT  Grand Junction Regnl-ONT Ontario
6h 45m1 stop Denver Intl
United Airlines Logo
5:00 am - 12:35 pmONT  Ontario-GJT Grand Junction Regnl
6h 35m1 stop Denver Intl
$459United Airlines
Thu, Dec 24 - Mon, Dec 28
American Airlines Logo
6:50 am - 4:15 pmGJT  Grand Junction Regnl-ONT Ontario
10h 25m2 stops Dallas/Fort Worth Phoenix Sky Harbor Intl
American Airlines Logo
7:36 pm - 12:31 amONT  Ontario-GJT Grand Junction Regnl
3h 55m1 stop Phoenix Sky Harbor Intl
$528American Airlines
Booking Insights

Price, demand and travel trends for Grand Junction to Ontario flights

Use KAYAK data on prices, travel dates, airlines and seasonal trends to compare options and book flights with more confidence.

How much is a round-trip flight from Grand Junction to Ontario?

Round-trip flights from Grand Junction to Ontario typically range from $318 to $418. The lowest price found in the past 5 days was $364, on Delta.

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Key details for Grand Junction to Ontario flights

Low season

January

Cheapest flight

$294
Beat the crowds with an average 82% drop in travelers.
The most popular month to fly with an average 65% increase in travelers.
One-way flight from Grand Junction to Ontario

When to book flights from Grand Junction to Ontario

Are your dates flexible? Find out the best times to travel from Grand Junction to Ontario based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price

Your Grand Junction to Ontario flight questions, answered

Find helpful answers about this route, including flight times, airports, airlines and booking tips.

  • What cabin classes can I book on flights from Grand Junction to Ontario?

    Only Economy Class is available on flights from Grand Junction to Ontario.

  • How long is a flight from Grand Junction to Ontario?

    A nonstop flight from Grand Junction to Ontario takes 00m, covering 612 miles.

  • Do I need a passport to fly from Grand Junction to Ontario?

    No, a passport is not required for this domestic route, but you will need a real ID-compliant driver's license, a state ID or another TSA-accepted form of identification.

  • How much should I expect to pay for a Grand Junction to Ontario flight?

    Round-trip flights from Grand Junction to Ontario range from $318 to $418, with an average of $378 over the past 12 months. Anything below $318 counts as a good deal.

  • Have flight prices from Grand Junction to Ontario changed much recently?

    Yes. Based on fares seen in the past 5 days, round-trip prices on this route showed a wide range, from about $364 to $1,193. That means the highest observed fare was about 3x higher than the lowest one.

  • How are flight prices from Grand Junction to Ontario looking right now?

    One-way fares from Grand Junction to Ontario are currently lower than usual. Average one-way flight prices are about $299, which is 19% below the typical average for this route.

  • What car rental options are available at Ontario Airport (ONT)?

    Ontario Airport (ONT) hosts 5 major car rental companies, with daily rates starting from around $18 for economy cars. Top options include:

    • Fox
    • Thrifty
    • Europcar
    • Dollar
    • Alamo

  • Which airports can I use when flying from Grand Junction to Ontario?

    Flights from Grand Junction to Ontario usually depart from Grand Junction Regnl (GJT) and arrive at Ontario (ONT).

  • Which airports do connecting flights from Grand Junction to Ontario pass through?

    One-stop flights from Grand Junction to Ontario most commonly connect through:

    • Phoenix Sky Harbor Intl (PHX) - 48% of one-stop connections
    • Salt Lake City (SLC) - 40% of one-stop connections
    • Denver Intl (DEN) - 13% of one-stop connections

  • Can I save money by using flexible dates for flights from Grand Junction to Ontario?

    Yes. Flexible dates can save you up to 15% on flights from Grand Junction to Ontario. Monday is the cheapest departure day at $350 round-trip on average, while Friday is the most expensive at $408, a difference of $58.

    KAYAK's flexible dates feature shows options up to 3 days before and after your selected dates, making it easier to compare nearby fares.

  • How much time can I save by choosing a different layover airport from Grand Junction to Ontario?

    Flying via Phoenix Sky Harbor Intl (PHX) gives the shortest average 1-stop total travel time at 4h 44m, compared with 4h 48m via Salt Lake City (SLC) and 6h 15m via Denver Intl (DEN).

  • What is the time difference between Grand Junction and Ontario?

    Ontario is 1 hour behind Grand Junction (Pacific Time vs Mountain Time). Plan for the time shift when scheduling connections or first-day activities.

  • What popular places can I visit in Ontario?

    Some of the most popular sights in Ontario are Ontario Convention Center and Cucamonga-Guasti Regional Park. These are among the most viewed places in Ontario on KAYAK.

Your guide to booking Grand Junction to Ontario flights

Get tips on when to book, when to fly and what to know before your trip.
  • If your dates are flexible, aim for a Monday departure and avoid flying on Friday. On this route, Monday flights average $350, about $58 less than Friday fares (14% savings) based on the last 12 months.
  • If you can choose when to travel, plan your Grand Junction to Ontario trip for February. Fares historically average $211 round-trip in that month - typically $354 less than the most expensive month, which is January (based on the last 12 months).
  • If you're arriving late at night and need somewhere to stay, check out these hotels close to Ontario Airport.

    • Ontario Airport Inn
    • Holiday Inn Ontario Airport By IHG
    • Azure Hotel & Suites, Trademark Collection by Wyndham

More options for your flight from Grand Junction to Ontario

Complete your trip to Ontario with a hotel stay or car rental

Car rentals in Ontario
Hotels in Ontario
Vacations in Ontario