$78 Find Cheap Flights from Ontario to Utah - 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 Utah departing on 9/19. 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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Cheap Flights from Ontario to Utah

Cheapest round-trip prices found by our users on KAYAK in the last 72 hours
Salt Lake City
Salt Lake City1 stop$150
Saint George
Saint George1 stop$327
Provo
Provo1 stop$183
Cedar City
Cedar City1 stop$428
Vernal
Vernal2 stops$815
Salt Lake City
Salt Lake City1 stop$150
Saint George
Saint George1 stop$327
Provo
Provo1 stop$183
Cedar City
Cedar City1 stop$428
Vernal
Vernal2 stops$815

Book Cheap Ontario to Utah Plane Tickets

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Ontario to Utah 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 Utah

Tue, Aug 11 - Sat, Aug 15
Frontier Logo
6:00 am - 12:27 pm
ONT
-
SLC
5h 27m
1 stop
Frontier Logo
3:41 pm - 11:50 pm
SLC
-
ONT
9h 09m
1 stop
$150Frontier
Wed, Aug 5 - Mon, Aug 10
Frontier Logo
6:00 am - 2:55 pm
ONT
-
SLC
7h 55m
1 stop
Frontier Logo
8:16 am - 10:04 am
SLC
-
ONT
26h 48m
1 stop
$152Frontier
Sat, Sep 12 - Tue, Sep 15
American Airlines Logo
1:05 pm - 9:24 pm
ONT
-
SGU
7h 19m
1 stop
American Airlines Logo
5:36 pm - 12:06 pm
SGU
-
ONT
43h 30m
1 stop
$327American Airlines
Fri, Sep 25 - Sun, Sep 27
American Airlines Logo
1:04 pm - 11:00 am
ONT
-
SGU
20h 56m
1 stop
American Airlines Logo
11:31 am - 12:06 pm
SGU
-
ONT
49h 35m
1 stop
$343American Airlines
Tue, Dec 22 - Mon, Dec 28
Delta Logo
6:00 am - 12:30 pm
ONT
-
SGU
5h 30m
1 stop
Delta Logo
1:10 pm - 4:13 pm
SGU
-
ONT
4h 03m
1 stop
$346Delta
Fri, Aug 28 - Wed, Sep 2
United Airlines Logo
1:18 pm - 10:14 pm
ONT
-
SGU
7h 56m
1 stop
United Airlines Logo
1:50 pm - 8:53 pm
SGU
-
ONT
8h 03m
1 stop
$348United Airlines
Mon, Dec 21 - Fri, Dec 25
Delta Logo
5:05 pm - 10:05 pm
ONT
-
SGU
4h 00m
1 stop
Delta Logo
1:10 pm - 4:13 pm
SGU
-
ONT
4h 03m
1 stop
$356Delta
Tue, Aug 25 - Sat, Aug 29
United Airlines Logo
5:00 am - 1:15 pm
ONT
-
SGU
7h 15m
1 stop
United Airlines Logo
1:50 pm - 8:53 pm
SGU
-
ONT
8h 03m
1 stop
$383United Airlines
Wed, Jul 15 - Wed, Jul 22
Multiple Airlines Logo
2:05 pm - 7:05 pm
ONT
-
VEL
28h 00m
2 stops
Multiple Airlines Logo
8:30 am - 11:52 pm
VEL
-
ONT
16h 22m
2 stops
$815Multiple Airlines
Mon, Aug 24 - Mon, Aug 31
Multiple Airlines Logo
6:02 am - 7:00 pm
ONT
-
VEL
11h 58m
2 stops
Multiple Airlines Logo
8:30 am - 11:24 pm
VEL
-
ONT
15h 54m
2 stops
$826Multiple Airlines
Booking Insights

KAYAK's insights & trends for Ontario to Utah flights

Get data-powered insights and trends into flights from Ontario to Utah 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 Utah?

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 Utah departing in August.

What is the cheapest Ontario to Utah flight route?

Data is based on round-trip flight searches on KAYAK over the past month.

The cheapest ticket to Utah from Ontario found in the last 5 days was to Salt Lake City, at $245 round-trip. The most popular route is from Ontario (ONT) to Salt Lake City (SLC), and the cheapest round-trip airline ticket found on this route in the last 5 days was $245.

What is the cheapest time of day to fly to Utah?

The average price for all round-trip flights from Ontario to Utah depending on the time of departure, clicked by users on KAYAK in the last 2 weeks.

The cheapest time of day to fly to Utah is generally in the morning, when round-trip flights cost $379 on average. Morning departures are around 1% cheaper than evening flights, on average. The most expensive time of day to fly to Utah is generally in the afternoon, which is peak travel time and where the average cost of a ticket is $421.

Can I save money by flying with a layover from Ontario to Utah?

The average round-trip price for all non-stop flights, flights with one layover, and flights with two layovers for the route found by users searching on KAYAK in the last 2 weeks.

No, with an average price for the route of $339, prices are generally cheapest when you fly direct.

What is the cheapest month to fly from Ontario to Utah?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Ontario to Utah, 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 Utah is September, when tickets cost $58 (return) on average. On the other hand, the most expensive months are March and June, when the average cost of round-trip tickets is $148 and $130 respectively.

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

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

If your flying dates are flexible, you should consider flying to Utah on a Thursday, as we generally find the cheapest rates on that day for this route. On the other hand, Monday is the most expensive day to fly from Ontario to Utah. For your return ticket, we recommend flying on a Saturday and avoiding Wednesdays for the best deals.

How far in advance should I book a flight from Ontario to Utah?

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from Ontario to Utah, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

To get a below average price on the flight from Ontario to Utah, you should book around 4 weeks before departure, which saves you about 30% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 23 weeks before departure.

Good to know

Low seasonMarch
Cheapest flight$78
Best time to beat the crowds but there is an average 24% increase in price.
Most popular time to fly with an average 11% increase in price.
Flight from Ontario to Salt Lake City

FAQs - booking Utah flights

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

    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 Utah.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight from Ontario to Utah 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 Utah?

    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 from Ontario to Utah with an airline and back with another airline.

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

    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 from Ontario to Utah up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Top tips for finding cheap flights to Utah

  • Looking for a cheap flight? 25% of our users found tickets from Ontario to the following destinations at these prices or less: Salt Lake City $205 one-way - $357 round-trip

Reviews of the top 4 airlines serving from Ontario to Utah

 
See real verified KAYAK customer reviews for airlines flying from Ontario to Utah. 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 Utah? 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
SouthwestOverall score based on 4250 reviews
7.0Food
8.1Boarding
8.0Comfort
8.6Crew
7.5Entertainment
Airline reviews

I think Southwest is the number one airline that anyone can fly I have flown for the first time Frontier and what a joke and their customer service United was a very strange experience I'm only sticking to Southwest from here on out for sure

10.0 Excellentkelly, Jul 2026
SFO - PHX
Read more Southwest reviews

I think Southwest is the number one airline that anyone can fly I have flown for the first time Frontier and what a joke and their customer service United was a very strange experience I'm only sticking to Southwest from here on out for sure

Great job Southwest! My family doesn't fly often but we felt safe the whole time.

Flight was delayed, full flight and I had to change gates. Southwest flights are always late later in the day.

Was fine, delayed and feels like southwest is always late

The entire experience from boarding to landing was amazing! The crew were very friendly. Will definitely be back.

Delayed flight, lack of information, boarding process is a mess as is the carryon luggage causing issues when leaving the plane….just a poor experience.

Comfortable. Easy. No problems. Just wish they had gf options for snacks.

Crew and drinks were great. They lost my bag and were not helpful. Instead they simply told me “maybe you should’ve came earlier”.

I liked receiving attention from aged and well experienced flight attendants. I disliked the non-gluten-free snack but I brought my own so I was OK.

Flight was on time and I was glad this direct route existed.

THEY FAILED ME AND I NEVER GOT ON THE FLIGHT BECAUSE IT WAS SO DELAYED! I ENDED UP HAVING TO PAY OUT OF POCKET FOR A HOTEL AND STAY IN NASHVILLE TO CATCH A FLIGHT FOR THE FOLLOWING DAY. DELTA IS POOR CUSTOMER SERVICE>

I was in first class and literally the men behind me were so aggressively loud I moved myself to economy. This has become so common on Delta - people using audio without headphones, and men on 12am / late night flights drinking and yelling to talk to each other which prevents anyone around them from resting. Pretty crazy to have to move from first to economy (poorer service, less comfort...). Wild wild. Looking into other airlines.

First flight out and was 85 minutes delayed. Notification came out way too late

Departure was delayed resulting in me missing my connection. Delta did not autimatically find me another flight.

This flight was a first class choice and left much to be desired. Seat backs on seats were falling apart and torn. Seats actually didn't come to a "full & upright position". Pull out table was sprung. Not any significant leg room. All in all we were on an obviously older plane and felt overcharged for what we received as first class.

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

737-800 in first class was pretty dumpy. Seat had an uncomfortable angle, storage under the seat was blocked so even my very modest backpack didn't fit, power outlet was flaky. Weird tiny seat pockets that couldn't hold a gallon ziploc bag, emesis bag missing, etc. etc. No in-flight service due to turbulence. Crew was excellent, boarding was smooth despite a full flight.

The flight was overbooked and the staff at the gate started calling for volunteers to drop out and offering incentives. That delayed the flight

There was no wifi even after my husband paid for wifi it wasn’t working. The plane looked and felt old.

Update the cabin with tv screens or at least music sources.

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.

The crew was very kind, but no in-flight entertainment monitors and a 2 hour and 30 minute delay was extremely frustrating.

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

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

The flight was fine. This survey is not. There is no option for N/A so items which don’t apply to my experience still must be rated. In those instances I give a “3” rating which ultimately skews the results.

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!

First world problems, but still… We were seated in first class and asked for a cocktail on a very short, 50 minute flight. After our drink order was taken, a half hour went by, and we noticed that every other person in the small plane had been served except for us. We got up to ask about it, the drinks finally came, then were taken away three minutes later since the flight was so short. Really strange situation, on the other hand, we were in Utah.

A thousand choices for movies and nothing to watch. I avoid 'R' rated shows and others with violence and sexual content, which results in a handful of flicks to view and I have them already.

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.

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.

No way to get boarding pass on my phone. In order to print the bag ticket a boarding pass is needed. Asked the agent to print me one, they said they typically do not due this as its so much work. I showed the email confirmation and I asked how i could do it my self the agent replied he did not know as there was no link. The flight was delayed due to an attendant forgetting to come to work. On the flight no drinks were offered only for purchase meals.

The takeoff was the smoothest I've ever experienced on any airline and this is the first time I've flown on frontier so this was an extremely pleasant surprise!

A lady asked to stop the flight after the tunnel pulled away and we began to depart a flight that was already hours late. The attendance respectfully stopped the the plane and had the tunnel return. After the tunnel returned the passenger claimed to have changed her mind . The tunnel was then put in reverse and the passenger remained on the plane .. They should have sent the sick passenger off the plane like initially replaced. They existed a couple off the plane prior to that situation.. So.. all and all.. it was a long and flight.. .

We understand and comply with Frontier’s bag sizes. We’ve had some problems in past while having to await other passengers who do not understand the baggage restrictions or have not prepaid and that is usually our biggest concern (others delaying us) with flying Frontier. Flying OUT of ONT, however, has always been a great experience. I’ve also noted even on delayed Frontier flights very knowledgeable pilots who manage expectations well.

Long lines, rude staff, everything that's offered you have to pay for.

The last time I flew Frontier was in the 1960s when it was a “real” airline. We flew this time because of the price & schedule. As the saying goes, you get what you pay for.

I appreciated the upgrade to free cary-on bag and seat selection at no charge

Flight was delayed on the runway for 40 minutes the crew did not even offer even water to passengers to compensate for the flight delayed. The flight was delayed due to aircraft mechanical issues. Worst customer service ever

This isna terribly run airlines. If you're one minute late, they will deny your ticket. Don't waste your time or money

Flight was delayed for more than 3 hours, crew at ONT airport was rude, and when we got to DFW the airplane had an issue landing, we had to be taxied to the terminal, and the luggage was hold until the next day.

Everything you need to know for your flight from Ontario to Utah

Information on your arrival and departure airports