ONT - GJT

$235 Find Cheap Flights from Ontario to Grand Junction

This is the cheapest round-trip flight price found by a KAYAK user in the last 72 hours by searching for a flight from Ontario to Grand Junction departing on 1/23. 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
$211
Overall average: $343
Delta
Fri 1/23Sat 1/24
ONT - GJT • 1 stop
Cheapest one-way
$235
United Airlines
Thu 1/15
ONT - GJT • 1 stop
When to travel
August
Cheapest • 28% price drop
April
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
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KAYAK searches 100s of sites at once to find you the best travel deals.
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

Fri, Jan 23 - Sat, Jan 24
Delta Logo
5:10 pm - 10:02 pm
ONT
-
GJT
3h 52m1 stop
Delta Logo
7:40 am - 12:16 pm
GJT
-
ONT
5h 36m1 stop
$211Delta
Wed, Jan 28 - Sat, Jan 31
United Airlines Logo
1:24 pm - 8:38 pm
ONT
-
GJT
6h 14m1 stop
United Airlines Logo
3:21 pm - 8:58 pm
GJT
-
ONT
6h 37m1 stop
$281United Airlines
Wed, Jan 28 - Sat, Jan 31
United Airlines Logo
5:05 am - 12:40 pm
ONT
-
GJT
6h 35m1 stop
United Airlines Logo
3:21 pm - 10:53 pm
GJT
-
ONT
8h 32m2 stops
$286United Airlines
Wed, Jan 28 - Sat, Jan 31
United Airlines Logo
1:53 pm - 10:27 pm
ONT
-
GJT
7h 34m2 stops
United Airlines Logo
1:38 pm - 10:53 pm
GJT
-
ONT
10h 15m2 stops
$291United Airlines
Fri, Jan 23 - Fri, Jan 30
United Airlines Logo
5:05 am - 10:54 am
ONT
-
GJT
4h 49m1 stop
United Airlines Logo
1:38 pm - 10:53 pm
GJT
-
ONT
10h 15m2 stops
$341United Airlines
Fri, Jan 23 - Mon, Jan 26
United Airlines Logo
5:05 am - 12:40 pm
ONT
-
GJT
6h 35m1 stop
United Airlines Logo
3:21 pm - 8:58 pm
GJT
-
ONT
6h 37m1 stop
$345United Airlines
Thu, Jan 1 - Mon, Jan 5
United Airlines Logo
5:05 am - 12:38 pm
ONT
-
GJT
6h 33m1 stop
United Airlines Logo
3:12 pm - 9:08 pm
GJT
-
ONT
6h 56m1 stop
$365United Airlines
Sat, Jan 17 - Mon, Jan 19
United Airlines Logo
1:53 pm - 10:27 pm
ONT
-
GJT
7h 34m2 stops
United Airlines Logo
6:10 pm - 8:58 pm
GJT
-
ONT
27h 48m1 stop
$370United Airlines
Fri, Jan 23 - Sat, Jan 24
United Airlines Logo
1:53 pm - 10:27 pm
ONT
-
GJT
7h 34m2 stops
United Airlines Logo
1:38 pm - 10:53 pm
GJT
-
ONT
10h 15m2 stops
$375United Airlines
Thu, Jan 29 - Thu, Feb 5
United Airlines Logo
6:00 am - 10:54 am
ONT
-
GJT
27h 54m3 stops
United Airlines Logo
7:00 am - 12:47 pm
GJT
-
ONT
6h 47m1 stop
$394United 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.

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 $288 (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 seasonOctober
Cheapest flight$211
Best time to beat the crowds but there is an average 5% increase in price.
Most popular time to fly and prices are also 11% lower on average.
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 $200 for a one-way ticket and $211 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?

    SkyTeam, and oneworld 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 7.9, Delta is the most popular choice. American Airlines is also a great choice for the route, with an average price of $384 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.
7.9
DeltaOverall score based on 8004 reviews
7.9Entertainment
8.1Boarding
8.5Crew
7.9Comfort
7.3Food
Airline reviews

No lunch on a x-country flight scheduled for 10:50 am departure, arrived 5+ hrs later. That requires a black box label before you pay for the tickets. Worst, when I checked in online, it's specifically said that lunch was served on his flight for economy Plus passengers.

8.0 ExcellentDeborah, Nov 2025
LAX - RDU
Read more Delta reviews

No lunch on a x-country flight scheduled for 10:50 am departure, arrived 5+ hrs later. That requires a black box label before you pay for the tickets. Worst, when I checked in online, it's specifically said that lunch was served on his flight for economy Plus passengers.

Our flight from SFO to MSP was right on time on 11/15/2025. No delays. As we approached MSP at about 8 pm, we circled in the air until 8:40 pm so I don't call that efficient for MSP. I think the captain should announce the delay and why. (as if we all don't know that we are just circling around the area, slowing down, speeding up, slowing down.) Thank you. Marilyn Fischer

Staff were friendly and happy. Delta could make sure passengers that don't have the app know of changes. Without Kayak I would not have known about the change of gate or the delay. Kayak was faster to notify me.

The flight used a B767 with a very old interior from before 2014. The entertainment system did not work at all during the flight despite attempts to reset the system. It was like they flew this route just to be competitive.

Delayed flight (1hour) plus a long layover after an overnight flight with no backup plane available.

Flight delayed for two and half hours and then canceled altogether due to mechanical issues. No mechanic onsite to fix so had to send one from LAX.

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!

Horrible. Both legs of my flight were delayed more than 6 hours. No compensation, no screens on the plane, and the plane was not clean.

The flight was smooth, the pilot kept us informed about delays and we arrived more of less on time

Flight was delayed leaving Dallas. Arrived about 2 hours later than scheduled.

The flight was flawless and we even arrived between 20 and 25 minutes early!

Always seated jammed in rear of aircraft Admirals Club food at DFW terminal D was absolute worst food experience and I pay $600/year to eat this dried out junk

Mostly good. Flight was crowded but Airline personnel were very friendly & accommodating. It would be good to have savory snacks rather than just sweet Biscoff cookies.

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.

It was a red eye flight, so no meals were provided, but it was fine with snacks. The seats felt cramped and almost too narrow.

Very crowded flight but what can you expect these days?? Crew was accommodating.

Because the plane was 90 degrees F, they would not let us board. I wish they had, because it meant we were delayed. It's Texas, of course it's hot. We would have survived.

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

Information on your arrival and departure airports