ONT - GJT

$190 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 9/17. 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

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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Flights 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

Thu, Sep 18 - Sat, Sep 20
Delta Logo
1:15 pm - 6:16 pmONT-GJT
4h 01m1 stop
Delta Logo
5:55 am - 8:57 amGJT-ONT
4h 02m1 stop
$229Delta
Find Deal
Sat, Sep 20 - Sun, Sep 21
Delta Logo
11:50 am - 10:34 pmONT-GJT
9h 44m2 stops
Delta Logo
5:55 am - 8:57 amGJT-ONT
4h 02m1 stop
$234Delta
Find Deal
Wed, Aug 27 - Mon, Sep 1
Delta Logo
4:50 pm - 10:43 pmONT-GJT
4h 53m1 stop
Delta Logo
6:00 am - 8:55 amGJT-ONT
3h 55m1 stop
$239Delta
Find Deal
Wed, Aug 27 - Mon, Sep 1
Delta Logo
11:40 am - 10:43 pmONT-GJT
10h 03m2 stops
Delta Logo
6:00 am - 8:55 amGJT-ONT
3h 55m1 stop
$244Delta
Find Deal
Thu, Aug 14 - Mon, Aug 18
United Airlines Logo
1:34 pm - 8:30 pmONT-GJT
5h 56m1 stop
United Airlines Logo
1:32 pm - 5:25 pmGJT-ONT
4h 53m1 stop
$249United Airlines
Find Deal
Thu, Jan 8 - Mon, Jan 12
American Airlines Logo
1:32 pm - 9:24 pmONT-GJT
6h 52m1 stop
American Airlines Logo
4:35 pm - 10:02 pmGJT-ONT
6h 27m1 stop
$298American Airlines
Find Deal
Wed, Aug 27 - Wed, Sep 3
United Airlines Logo
5:10 am - 12:36 pmONT-GJT
6h 26m1 stop
United Airlines Logo
1:45 pm - 5:29 pmGJT-ONT
4h 44m1 stop
$335United Airlines
Find Deal
Thu, Jan 8 - Mon, Jan 12
United Airlines Logo
1:00 pm - 8:27 pmONT-GJT
6h 27m1 stop
United Airlines Logo
11:25 am - 6:00 pmGJT-ONT
7h 35m2 stops
$344United Airlines
Find Deal
Sun, Sep 14 - Sun, Sep 21
American Airlines Logo
7:16 pm - 12:14 amONT-GJT
3h 58m1 stop
American Airlines Logo
6:38 pm - 9:48 pmGJT-ONT
4h 10m1 stop
$367American Airlines
Find Deal
Thu, Aug 28 - Sun, Aug 31
American Airlines Logo
7:02 pm - 12:21 amONT-GJT
4h 19m1 stop
American Airlines Logo
6:58 pm - 9:39 pmGJT-ONT
3h 41m1 stop
$368American Airlines
Find Deal
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.

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

The average price of all round-trip flights from Ontario to Grand Junction clicked on KAYAK for each day over the last 12 months.

If you are looking for a flight deal from Ontario to Grand Junction, look for departures on Thursdays and avoid leaving on a Monday, as it's usually the priciest day. When flying back from Grand Junction, Wednesday is the cheapest day to fly and Friday is the most expensive.

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 August, where tickets cost $298 (return) on average. On the other hand, the most expensive months are March and June, where the average cost of round-trip tickets is $708 and $570 respectively.

Good to know

Low seasonJanuary
Cheapest flight$190
Best time to beat the crowds with an average 17% drop in price.
Most popular time to fly with an average 4% 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 $190 for a one-way ticket and $229 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, Star Alliance, and SkyTeam are the airline alliances operating flights between Ontario and Grand Junction, with SkyTeam being the most commonly used for this route.

  • Which is the best airline for flights from Ontario to Grand Junction, Delta or American Airlines?

    The two airlines most popular with KAYAK users for flights from Ontario to Grand Junction are Delta and American Airlines. With an average price for the route of $288 and an overall rating of 8.0, Delta is the most popular choice. American Airlines is also a great choice for the route, with an average price of $403 and an overall rating of 7.2.

  • 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 airlines 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.
8.0
DeltaOverall score based on 7980 reviews
7.9Comfort
8.2Boarding
7.3Food
8.5Crew
7.9Entertainment
Airline reviews

Flight was canceled, and no effort was made to help with rebooking, no hotel vouchers, no car transportation and minimal food voucher and most places for food were closed by the time the voucher was given. Waited for 3 hours for bags. Simply the worst travel experience I have ever had

2.0 MediocreDana, Jul 2025JFK - DEN
Read more Delta reviews

Flight was canceled, and no effort was made to help with rebooking, no hotel vouchers, no car transportation and minimal food voucher and most places for food were closed by the time the voucher was given. Waited for 3 hours for bags. Simply the worst travel experience I have ever had

My husband upgraded our seats and I don't know if it was due to the type of planet was or if they didn't upgrade our seats. We were supposed to be in I believe comfort seats and they were just as tight as any other seat- no leg room and we are very tall people but at least it wasn't extremely cold. My husband did put in a complaint about our seating because he paid extra and if we would have known that the space and the tightness would have been the same, we just would have gotten the emergency row emergency row seats that we normally get. We love Delta but both our flights coming home we're not good. Oh I forgot to mention that on our flight to Hawaii our luggage wheels got broke and we had to purse new luggage on vacation then we never had this problem so we didn't know protocol and reported it after we got home only for them to tell is we only had 24hrs to report the damage. Not sure what was going on with Delta this vacation trip.

Crew was excellent. Comfort seats not as nice as other kinds of planes.

It was a great flight and the stewards and stewardess were all kind and accommodating!! The seats were comfortable and entertainment screen excellent!

There are 4 flights in consecutive gates with about the same departure time. Two flights were boarding at the same time. One was delayed or boarding would be happening at the same time. I am not sure what Delta and LAX need to do to have a better layout at the end of Terminal 2

There was a security issue at the airport and we were unable to land. We circled endlessly and then landed at another airfield for fuel. We then circled the airport again, almost landed but didn’t fully touch down before circling again. I am thankful to the crew for keeping us safe- the issue was the airline and staff at the airport getting us seats on our connecting flights. That part was hours of searching for someone and getting in double my steps.

Most aspects were good however if they assign boarding zones they ought to enforce them or why bother? My luggage from SAN-JFK-MAD was lost in NY so I without my main bag for two days upon arrival in Spain. They were helpful in tracking it and eventually delivered it to my hotel. The flub was because of a delay upon arrival in NYC. I had booked 2 1/2 hours between flights but we had to hold on the taxiway for an hour after landing while waiting for a clear gate which likely caused the baggage error.

Excellent flight, the planes were newer, they did a nice job with boarding, great service overall.

It would be nice if was given wires ear buds. Overall was a good experience was able to sleep on the plane

My flight was 6 pm 6/6. Every hour they delayed it again - air condition issues then no pilot then the crew had worked too many hours and cancelled the flight at 11 pm. Sent customers to NJ a 45 minutes uber ride to a hotel. Had to be back by 5 am for a 7 am flight and again no pilot etc with another three hours of delays.

Our flight was 1.5 hours delayed. There was no weather for the inbound flight, so I don't understand why. This meant a VERY late arrival and only a quick nap before my morning flight.

Delayed flight, so I switched fights to SFO to Phoenix , Phoenix to DSM. Excellent service through American Airlines

AA re-routed flight from HNL to LAX due to delay. My group of 3 with reserved seats in row 9 was broken up, with one assigned to a middle seat, another in the last row of the plane. Not happy. No explanation to the delay. No apologies. No compensation. Would have been nice to be offered an Admiral Club admission or a voucher for the extra 3 hours of layover in LAX. Could not hear the boarding gate announcements in LAX. Adjacent gate was boarding at the same time. Loud speakers were competing against each other. Barely made my boarding group.

Almost a 6 hour flight and the only food option is a cheese plate… and chips. Also how is it there are no options for texting on American. I’ll be going back to delta and united.

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!

Cramped seats. FAA should make airlines have more legroom, for even short people complain

Eventless. It was a good flight and good crew. Can’t complaint.

Very helpful ground crew after an earlier flight delay and being rebooked on a different flight.

Terrible. The flight was delayed two hours due to weather. Then when we got on the plane, the first pilot ended up timing out and we had to wait for a second pilot. Second pile came on board and we tax it out. Had to return back to the gate because of an unruly passenger. Then the copilot timed out. Had to wait for new copilot. Also had to wait for maintenance to check for fuel. Then found out the second pilot timed out and we had to wait for a third pilot. Was ready to go and then needed maintenance again for another issue. In the end, it was 2 o’clock in the morning when they announced that the flight couldn’t go because the third pilot and the second copilot had timed out.

The plane was late and then sat on the runway for almost 45 minutes before taking off.

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

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