ONT - GJT

$149 Find Cheap Flights from Ontario to Grand Junction

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Ontario to Grand Junction departing on 6/22. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

KAYAK searches hundreds of travel sites at once for deals on flights to Grand Junction

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Ontario to Grand Junction, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Ontario to Grand Junction, as well as popular online travel agencies
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Everything you should know

Cheapest round-trip
$271
Typical prices: $297-$238
Delta
Sun 8/16Sun 8/30
ONT - GJT • 1 stop
Cheapest one-way
$149
Multiple Airlines
Mon 6/22
ONT - GJT • 1 stop
Top airlines
Delta
Cheapest • from $271 (round-trip)
American Airlines
Best reviews • 7.1 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
Nonstop flights
Not available
There are currently no direct flights between Ontario and Grand Junction. You'll need at least 1 connection.
Insights
Insights
Insights
Insights
Top layover airports
Salt Lake City (SLC)
Cheapest • Avg $265 (round-trip)
Salt Lake City (SLC)
Shortest trip • 3h 57m (one-way)
Insights
Insights
Insights
Insights
When to travel
December
Cheapest • 100% price drop
May
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
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We hope you love your trip to Grand Junction!
Flight Deals
Booking Insights
Flight Deals

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

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Ontario to Grand Junction that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Ontario to Grand Junction

Sun, Aug 16 - Sun, Aug 30
Delta Logo
5:06 pm - 9:56 pm
ONT
-
GJT
3h 50m
1 stop
Delta Logo
6:53 pm - 11:34 pm
GJT
-
ONT
5h 41m
1 stop
$271Delta
Thu, Aug 20 - Wed, Sep 2
Delta Logo
12:55 pm - 6:18 pm
ONT
-
GJT
4h 23m
1 stop
Delta Logo
6:56 pm - 11:44 pm
GJT
-
ONT
5h 48m
1 stop
$290Delta
Thu, Jul 23 - Tue, Jul 28
American Airlines Logo
7:14 pm - 10:26 am
ONT
-
GJT
14h 12m
2 stops
American Airlines Logo
6:54 pm - 9:44 pm
GJT
-
ONT
3h 50m
1 stop
$324American Airlines
Mon, Aug 17 - Sat, Aug 29
American Airlines Logo
11:59 pm - 10:05 am
ONT
-
GJT
9h 06m
1 stop
American Airlines Logo
8:30 am - 12:03 pm
GJT
-
ONT
4h 33m
1 stop
$351American Airlines
Sat, Jun 13 - Mon, Jun 15
American Airlines Logo
1:11 pm - 6:25 pm
ONT
-
GJT
4h 14m
1 stop
American Airlines Logo
6:55 pm - 9:57 pm
GJT
-
ONT
4h 02m
1 stop
$352American Airlines
Sat, Aug 29 - Wed, Sep 2
United Airlines Logo
5:00 am - 12:38 pm
ONT
-
GJT
6h 38m
1 stop
United Airlines Logo
1:40 pm - 8:01 pm
GJT
-
ONT
7h 21m
2 stops
$356United Airlines
Sat, Aug 29 - Wed, Sep 2
United Airlines Logo
11:00 am - 9:59 pm
ONT
-
GJT
9h 59m
2 stops
United Airlines Logo
1:40 pm - 8:01 pm
GJT
-
ONT
7h 21m
2 stops
$361United Airlines
Tue, Jun 16 - Mon, Jun 22
American Airlines Logo
7:13 pm - 11:43 pm
ONT
-
GJT
3h 30m
1 stop
American Airlines Logo
6:55 pm - 9:57 pm
GJT
-
ONT
4h 02m
1 stop
$363American Airlines
Sat, Aug 29 - Wed, Sep 2
United Airlines Logo
5:00 am - 12:38 pm
ONT
-
GJT
6h 38m
1 stop
United Airlines Logo
7:00 am - 12:50 pm
GJT
-
ONT
6h 50m
1 stop
$405United Airlines
Mon, Aug 17 - Tue, Sep 1
United Airlines Logo
5:00 am - 10:44 am
ONT
-
GJT
4h 44m
1 stop
United Airlines Logo
9:24 am - 8:01 pm
GJT
-
ONT
11h 37m
2 stops
$410United Airlines
Booking Insights

KAYAK's insights & trends for Ontario to Grand Junction flights

Get data-powered insights and trends into flights from Ontario to Grand Junction to help you find the cheapest flights, the best time to fly and much more.

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

This analysis is based on the cheapest round-trip price found on KAYAK in the last 12 months by searching for a flight from Ontario to Grand Junction departing in August.

What is the cheapest month to fly from Ontario to Grand Junction?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Ontario to Grand Junction, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from Ontario to Grand Junction is December, where tickets cost $0 (return) on average. On the other hand, the most expensive months are June and April, where the average cost of round-trip tickets is $570 and $437 respectively.

Find deals

Good to know

Cheapest flight$149
Most popular time to fly with an average 1% increase in price.
Flight from Ontario to Grand Junction

When to book flights from Ontario to Grand Junction

Are your dates flexible? Find out the best times to travel from Ontario to Grand Junction based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking flights from Ontario to Grand Junction

  • What is the cheapest flight from Ontario to Grand Junction?

    In the last 3 days, the lowest price for a flight from Ontario to Grand Junction was $149 for a one-way ticket and $271 for a round-trip.

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

    No, a passport isn't needed to fly from Ontario to Grand Junction. However, local authorities might ask for an official ID.

  • Which aircraft models fly most regularly from Ontario to Grand Junction?

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from Ontario to Grand Junction?

    oneworld is the only airline alliance operating flights between Ontario and Grand Junction.

  • How does KAYAK find such low prices on flights from Ontario to Grand Junction?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Ontario to Grand Junction.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Ontario to Grand Junction?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Grand Junction from Ontario is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Ontario to Grand Junction?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Grand Junction with an airline and back to Ontario with another airline. Booking your flights between Ontario and GJT can sometimes prove cheaper using this method.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Ontario to Grand Junction?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Grand Junction from Ontario up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top airline flying from Ontario to Grand Junction

 
See real verified KAYAK customer reviews for airlines flying from Ontario to Grand Junction. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Ontario to Grand Junction? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.1
American AirlinesOverall score based on 11648 reviews
6.9Entertainment
7.5Boarding
7.9Crew
6.4Food
7.2Comfort
Airline reviews

Left early arrived early..right amount of talking from pilots..of course had to love the biscuit and water!

10.0 ExcellentStan, Apr 2026
LAX - PHL
Read more American Airlines reviews

Left early arrived early..right amount of talking from pilots..of course had to love the biscuit and water!

Boarding gate at LAX was too crowded—two gates next to one another

On time departure and early arrival. Flight attendant very nice.

Everything was delayed and the staff sent me to the wrong gate, causing me to miss one of my flights. I arrived at my destination 6 hours later than I was supposed to.

The SFO Lounge crew were amazing. The bartender Faris was great. Thanks!

Was not able to do a online check-in because the American Airlines system doesn't store our visa or other passport information, allowing us to have a trouble-free check-in. We were forced to have to check-in at the counter which Changes are upgrade status given that we were not able to check in much earlier.

Good flight, seated and had a water within 5 minutes. Crew was hospitable.

We left at 1030 am pacific from LA and supposed to land at 7 pm Eastern in NY. They made a detour, stopped in Philadelphia and didn’t land till 1130 PM Eastern!!! Worst flight experience with no pilot communication with no explanation as to what was going on. Everyone was very frustrated to say the least.

Flight boarded from Gate 159B, the farthest gate in the LAX Bradley Terminal. While the flight operated on time, the first class cabin attendant made no recognition of my being an Advantage Executive Platinum member.

The flight itself was excellent but the gate attendant made me check my carryon since she said it was an inch too big. I’ve had no problems with this carryon on recent flights on Qantas, Delta, Austrian, Southwest Airlines even though the overhead bins are the same size. there were other carryons in the bins that also looked larger than mine and there was room left in the bins for more. When I picked up my carryon from baggage claim one of the wheels had broken off.

Everything you need to know for your flight from Ontario to Grand Junction

Information on your arrival and departure airports

Ontario (ONT)
Grand Junction (GJT)