ONT - GJT

$229 Find Cheap Flights from Ontario to Grand Junction - Compare and Save

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 8/10. 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

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Everything you should know

Cheapest round-trip
$309
Typical prices: $238-$344
American Airlines
Wed 8/12Sat 8/15
ONT - GJT • 1 stop
Cheapest one-way
$229
Multiple Airlines
Mon 8/10
ONT - GJT • 2 stops
Top airlines
Cheapest • from $309 (round-trip)
Best reviews • 7.1 score
Airline reviews
Airline reviews
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Airline reviews
Airline reviews
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Nonstop flights
Not available
There are currently no direct flights between Ontario and Grand Junction. You'll need at least 1 connection.
Insights
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Top layover airports
Cheapest • Avg $330 (round-trip)
Shortest trip • 3h 54m (one-way)
Insights
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Insights
When to travel
Cheapest • 100% price drop
Most popular
Good to know
Good to know
+1
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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

Wed, Aug 12 - Sat, Aug 15
American Airlines Logo
6:15 am - 11:37 am
ONT
-
GJT
4h 22m
1 stop
American Airlines Logo
8:30 am - 12:03 pm
GJT
-
ONT
4h 33m
1 stop
$309American Airlines
Sat, Oct 17 - Tue, Oct 20
United Airlines Logo
5:00 am - 12:31 pm
ONT
-
GJT
6h 31m
1 stop
United Airlines Logo
7:00 am - 3:11 pm
GJT
-
ONT
9h 11m
2 stops
$314United Airlines
Tue, Aug 18 - Mon, Aug 24
Delta Logo
5:05 pm - 9:56 pm
ONT
-
GJT
3h 51m
1 stop
Delta Logo
6:53 pm - 11:34 pm
GJT
-
ONT
5h 41m
1 stop
$319Delta
Sat, Aug 8 - Fri, Aug 14
United Airlines Logo
5:00 am - 12:31 pm
ONT
-
GJT
6h 31m
1 stop
United Airlines Logo
1:40 pm - 10:59 pm
GJT
-
ONT
10h 19m
2 stops
$324United Airlines
Sun, Aug 2 - Wed, Aug 12
American Airlines Logo
7:15 pm - 12:16 am
ONT
-
GJT
4h 01m
1 stop
American Airlines Logo
8:30 am - 12:03 pm
GJT
-
ONT
4h 33m
1 stop
$329American Airlines
Sat, Oct 17 - Wed, Oct 21
United Airlines Logo
5:00 am - 12:31 pm
ONT
-
GJT
6h 31m
1 stop
United Airlines Logo
7:00 am - 12:46 pm
GJT
-
ONT
6h 46m
1 stop
$334United Airlines
Sat, Oct 17 - Wed, Oct 21
United Airlines Logo
5:00 am - 12:31 pm
ONT
-
GJT
6h 31m
1 stop
United Airlines Logo
7:00 am - 12:46 pm
GJT
-
ONT
6h 46m
1 stop
$336United Airlines
Fri, Jul 24 - Fri, Jul 31
Delta Logo
5:10 pm - 9:55 pm
ONT
-
GJT
3h 45m
1 stop
Delta Logo
6:56 pm - 11:48 pm
GJT
-
ONT
5h 52m
1 stop
$339Delta
Sat, Oct 17 - Tue, Oct 20
United Airlines Logo
1:52 pm - 10:07 pm
ONT
-
GJT
7h 15m
2 stops
United Airlines Logo
1:34 pm - 8:31 pm
GJT
-
ONT
7h 57m
2 stops
$347United Airlines
Fri, Nov 20 - Tue, Nov 24
Delta Logo
6:00 am - 10:30 am
ONT
-
GJT
3h 30m
1 stop
Delta Logo
1:11 pm - 4:12 pm
GJT
-
ONT
4h 01m
1 stop
$364Delta
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 October and June, where the average cost of round-trip tickets is $466 and $456 respectively.

Good to know

Cheapest flight$229
Most popular time to fly with an average 20% 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 5 days, the lowest price for a flight from Ontario to Grand Junction was $229 for a one-way ticket and $309 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 11810 reviews
6.4Food
7.5Boarding
7.9Crew
6.8Entertainment
7.2Comfort
Airline reviews

Ontario airport boarding was very easy to park and access, is clean and TSA took 10 minutes total. Check-in was a breeze and cruise was very nice.

10.0 ExcellentIngrid, May 2026
ONT - DFW
Read more American Airlines reviews

Ontario airport boarding was very easy to park and access, is clean and TSA took 10 minutes total. Check-in was a breeze and cruise was 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.

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

The flight was fine. It's the satellite terminal that supports American eagle flights is what sucks. There is only one food option and everything there is way overpriced. I mean I know it's airport pricing, but it's even crazier than that. I bought a sandwich in a plastic container for $18.

The flight was on time and arrived early. The crew were friendly and helpful.

We were delayed for a “couple of maintenance issues.” They were resolved rather quickly but a computer glitch caused someone in the airport to have to bring a physical copy of the paperwork so we could leave. I don’t know where they had to drive from to get to our plane but it took forever & we were 1 1/2 hrs late in leaving. The flight itself was fine.

The chair cushions may need an upgrade. I have been noticing they are so worn out, thin so you’d sit in a dip 😄. Other than that, all was an enjoyable trip. Thanks AA!

VERY disappointed at the agent checking in my luggage. I know that the weight limit is 23 kg, a little over 50 pounds (50.71 pounds). Yet the agent kept repeating "50 pounds". So I said, the limit is 23 kg, and she had the audacity to say 'no, it is 22 kg!" Imagine my surprise. Was she ignorant or was she poorly trained? Not sure. The boarding process was pretty good. The speakers were loud enough so I still could hear them despite inconsiderate passengers continuing to speak while the announcements were going on. During the flight, the teenage girl sitting behind me kept pressing her feet to the back of my chair. I turned around several times, yet she did not get the hint. I did not make a fuss since I sense I had a bad streak that night with AA, so I just did the best I can to lean forward and not let that bother me.

WiFi was down so no entertainment and I could not work either. The flight was Very turbulent at the end (the last 20 min felt like an eternity) I appreciated the pilot for getting us there safely. The flight attending in first class was kind and attentive to everyone.

It was wonderful upgrading to first. Plane was so cold thou. Crew was great. Wish there was a food option in first for such a long flight. Doesnt matter the time of day. Chintzy.

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

Information on your arrival and departure airports