GJT - ONT

$190 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
$319
Typical prices: $304-$408
American Airlines
Mon 9/24Sun 9/30
GJT - ONT • 1 stop
Cheapest one-way
$190
Typical prices: $240-$395
Multiple Airlines
Mon 10/8
GJT - ONT • 1 stop
When to travel
February
Cheapest • 44% price drop
June
Most popular
Good to know
+1
Good to know
+1
Top layover airports
Denver Intl (DEN)
Cheapest • Avg $318 (round-trip)
Phoenix Sky Harbor Intl (PHX)
Shortest trip • 4h 36m (one-way)
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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

Fri, Oct 16 - Sun, Oct 18
Delta Logo
1:15 pm - 4:23 pmGJT  Grand Junction Regnl-ONT Ontario
4h 08m1 stop Salt Lake City
Delta Logo
6:00 am - 12:30 pmONT  Ontario-GJT Grand Junction Regnl
5h 30m1 stop Salt Lake City
$319Delta
Fri, Sep 25 - Mon, Sep 28
Delta Logo
6:53 pm - 11:47 pmGJT  Grand Junction Regnl-ONT Ontario
5h 54m1 stop Salt Lake City
Delta Logo
5:15 pm - 9:57 pmONT  Ontario-GJT Grand Junction Regnl
3h 42m1 stop Salt Lake City
$319Delta
Thu, Sep 24 - Wed, Sep 30
American Airlines Logo
8:20 am - 12:06 pmGJT  Grand Junction Regnl-ONT Ontario
4h 46m1 stop Phoenix Sky Harbor Intl
American Airlines Logo
6:15 am - 11:27 amONT  Ontario-GJT Grand Junction Regnl
4h 12m1 stop Phoenix Sky Harbor Intl
$319American Airlines
Thu, Sep 24 - Wed, Sep 30
American Airlines Logo
8:20 am - 12:06 pmGJT  Grand Junction Regnl-ONT Ontario
4h 46m1 stop Phoenix Sky Harbor Intl
American Airlines Logo
6:15 am - 11:27 amONT  Ontario-GJT Grand Junction Regnl
4h 12m1 stop Phoenix Sky Harbor Intl
$320American Airlines
Thu, Sep 24 - Wed, Sep 30
Multiple Airlines Logo
12:45 pm - 7:36 pmGJT  Grand Junction Regnl-ONT Ontario
7h 51m2 stops Las Vegas Harry Reid Intl San Francisco
Multiple Airlines Logo
2:30 pm - 5:13 pmONT  Ontario-GJT Grand Junction Regnl
25h 43m1 stop Las Vegas Harry Reid Intl
$335Multiple Airlines
Thu, Sep 24 - Thu, Oct 1
Multiple Airlines Logo
12:45 pm - 7:36 pmGJT  Grand Junction Regnl-ONT Ontario
7h 51m2 stops Las Vegas Harry Reid Intl San Francisco
Multiple Airlines Logo
8:00 am - 5:13 pmONT  Ontario-GJT Grand Junction Regnl
8h 13m1 stop Las Vegas Harry Reid Intl
$336Multiple Airlines
Thu, Sep 24 - Wed, Sep 30
Multiple Airlines Logo
12:45 pm - 4:59 pmGJT  Grand Junction Regnl-ONT Ontario
5h 14m1 stop Las Vegas Harry Reid Intl
Multiple Airlines Logo
2:30 pm - 5:13 pmONT  Ontario-GJT Grand Junction Regnl
25h 43m1 stop Las Vegas Harry Reid Intl
$337Multiple Airlines
Thu, Sep 24 - Thu, Oct 1
Multiple Airlines Logo
12:45 pm - 4:59 pmGJT  Grand Junction Regnl-ONT Ontario
5h 14m1 stop Las Vegas Harry Reid Intl
Multiple Airlines Logo
8:00 am - 5:13 pmONT  Ontario-GJT Grand Junction Regnl
8h 13m1 stop Las Vegas Harry Reid Intl
$338Multiple Airlines
Wed, Sep 16 - Sun, Sep 20
American Airlines Logo
8:20 am - 12:06 pmGJT  Grand Junction Regnl-ONT Ontario
4h 46m1 stop Phoenix Sky Harbor Intl
American Airlines Logo
6:15 am - 11:27 amONT  Ontario-GJT Grand Junction Regnl
4h 12m1 stop Phoenix Sky Harbor Intl
$349American Airlines
Thu, Sep 24 - Sat, Sep 26
Multiple Airlines Logo
12:45 pm - 7:36 pmGJT  Grand Junction Regnl-ONT Ontario
7h 51m2 stops Las Vegas Harry Reid Intl San Francisco
Multiple Airlines Logo
10:04 am - 12:30 pmONT  Ontario-GJT Grand Junction Regnl
25h 26m1 stop Las Vegas Harry Reid Intl
$353Multiple 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 from Grand Junction to Ontario with more confidence.

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

Round-trip flights from Grand Junction to Ontario start at $319. Prices are typical for this route right now, with typical round-trip fares ranging from $304 to $408. The lowest price found in the past 5 days was $319 on American Airlines.

What's the cheapest day of the week to fly from Grand Junction to Ontario?

Tuesday is the cheapest day of the week to fly from Grand Junction to Ontario, it is 13% cheaper than the average day. Sunday is the most expensive day with flight prices 19% higher than average. Based on deals found by KAYAK users in the last 12 months.

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Key details for Grand Junction to Ontario flights

Low season

September

Cheapest flight

$190
Best time to beat the crowds but there is an average 9% increase in price.
Most popular time to fly with an average 2% increase in price.
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 route details based on KAYAK data, including flight times, airports, airlines and booking questions.

  • 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).

  • 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.

  • 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) - 57% of one-stop connections
    • Salt Lake City (SLC) - 40% of one-stop connections
    • Denver Intl (DEN) - 2% of one-stop connections

    Phoenix Sky Harbor Intl (PHX) handles the largest share of one-stop connections on this route.

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

    Yes. Being flexible with your travel dates can save you up to 27% on the Grand Junction to Ontario route. Tuesday is the cheapest departure day at $328 round-trip on average, while Sunday is the most expensive at $448, a difference of $120. KAYAK's flexible dates feature shows options up to 3 days before and after your selected dates, making it easier to compare nearby fares.

  • What popular places can I visit in Ontario?

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

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

    There are currently no nonstop flights available from Grand Junction to Ontario. Flights with 1 layover take between 4h 36m and 6h 13m in total, depending on the connection.

  • 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.

  • 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 $319 to $999. 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 $260, which is 7% below the typical average for this route.

  • 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 36m, compared with 4h 48m via Salt Lake City (SLC) and 6h 13m 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 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

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

    Round-trip flights from Grand Junction to Ontario range from $304 to $408, with an average of $374 over the past 12 months. Anything below $304 counts as a good deal.

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 can be flexible, aim for a Tuesday departure instead of Sunday. On this route, Tuesday flights average $328 - about $120 less than Sunday (27% 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 $237 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.
    - Azure Hotel & Suites, Trademark Collection by Wyndham
    - La Quinta Inn & Suites by Wyndham Ontario Airport
    - Holiday Inn Ontario Airport By IHG

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