HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Ontario

$55+ Cheap flights from Utah to Ontario (ONT)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 1/15. Fares are subject to change and may not be available on all flights or dates of travel.
SLC — ONT
dic. 3 — dic. 101
mié. 12/3
mié. 12/10
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Utah to Ontario with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheap flight deals from Utah to Ontario

Keep the following information in mind while searching for Utah to Ontario flight deals. Data was last updated noviembre 3, 2025.

Most accurate provider

CheapOair
3 stars

Most trusted provider

CheapOair
3 stars

Round-trip from

$110
(CheapOair)

One-way from

$55
(CheapOair)

Popular in

November

Cheapest in

February

Average price

$207

Good round-trip deal

$259 or less

Good one-way deal

$198 or less
Provider with most accurate pricing for Salt Lake City-Los Angeles flight deals.
Search Deals
Provider most trusted by Cheapflights users for Salt Lake City-Los Angeles flights.
Search Deals
From Utah to Ontario
Search Deals
One-way flight from Utah to Ontario
Search Deals
Highest demand for flights based on searches. 9% potential increase in price ($17 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease ($3 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in November 2025
Search Deals
Price to beat on a round-trip flight from Utah to Ontario.
Search Deals
Price to beat on a one-way flight from Utah to Ontario.
Search Deals

Find flight deals from Utah to Ontario

Cheapest flights from Utah to Ontario
Explore the most affordable flight options available from Utah to Ontario. Find the lowest fares from popular airlines and budget airlines, with prices last updated on noviembre 3, 2025.

This CheapOair deal was found by Cheapflights users on 10/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 11/181:10 pmSLC - ONT
1 stop9h 17mFrontier
mié. 11/198:00 amONT - SLC
1 stop7h 39mFrontier
Deal found 10/31$110
This Booking.com deal was found by Cheapflights users on 11/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 11/195:34 pmSLC - ONT
1 stop4h 08mFrontier
mié. 11/1912:58 amONT - SLC
1 stop13h 32mFrontier
Deal found 11/1$111
This CheapOair deal was found by Cheapflights users on 11/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 12/42:38 pmSLC - ONT
1 stop7h 39mFrontier
dom. 12/76:15 amONT - SLC
1 stop4h 26mFrontier
Deal found 11/2$124
This CheapOair deal was found by Cheapflights users on 11/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom. 11/168:10 pmSLC - ONT
1 stop4h 40mFrontier
mié. 11/198:45 amONT - SLC
1 stop10h 15mFrontier
Deal found 11/2$128
This CheapOair deal was found by Cheapflights users on 11/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom. 12/710:22 amSLC - ONT
1 stop5h 44mFrontier
dom. 12/145:18 pmONT - SLC
1 stop17h 23mFrontier
Deal found 11/3$138
This CheapOair deal was found by Cheapflights users on 11/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 12/52:20 pmSLC - ONT
1 stop10h 28mFrontier
dom. 12/76:15 amONT - SLC
1 stop4h 26mFrontier
Deal found 11/3$142
This CheapOair deal was found by Cheapflights users on 11/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 12/67:20 amSLC - ONT
1 stop8h 05mFrontier
dom. 12/76:15 amONT - SLC
1 stop4h 26mFrontier
Deal found 11/3$146
This Frontier deal was found by Cheapflights users on 11/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 11/121:10 pmSLC - ONT
1 stop9h 19mFrontier
mié. 11/198:45 amONT - SLC
1 stop10h 15mFrontier
Deal found 11/1$150
This CheapOair deal was found by Cheapflights users on 11/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 12/112:38 pmSLC - ONT
1 stop7h 39mFrontier
dom. 12/145:18 pmONT - SLC
1 stop17h 23mFrontier
Deal found 11/2$164
This Mytrip deal was found by Cheapflights users on 11/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 12/132:38 pmSLC - ONT
1 stop7h 39mFrontier
dom. 12/145:18 pmONT - SLC
1 stop17h 23mFrontier
Deal found 11/3$165
This Frontier deal was found by Cheapflights users on 11/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 11/149:28 amSLC - ONT
1 stop4h 23mFrontier
jue. 11/206:30 amONT - SLC
1 stop5h 57mFrontier
Deal found 11/1$166
This CheapOair deal was found by Cheapflights users on 11/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 11/125:34 pmSLC - ONT
1 stop4h 08mFrontier
dom. 11/1610:43 pmONT - SLC
1 stop8h 50mFrontier
Deal found 11/1$168

Cheapflights Fare Finder

 
Customize your flight search to find flights from Utah to Ontario that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated noviembre 3, 2025.
Use the filters below to find and compare flights from Utah to Ontario that are best for you.

Fly from

Utah

Fly to

Ontario

Route

Depart

Return

Price

Salt Lake CityOntario

SLC - ONT

SLCONT

Salt Lake City

jue. 12/4

12:36 pm-1:10 pm

1 stop25h 34m

Ontario

dom. 12/7

6:15 am-11:41 am

1 stop4h 26m

$128

Salt Lake CityOntario

SLC - ONT

SLCONT

Salt Lake City

sáb. 11/15

11:43 am-12:51 pm

1 stop26h 08m

Ontario

mié. 11/19

12:58 am-3:30 pm

1 stop13h 32m

$150

Salt Lake CityOntario

SLC - ONT

SLCONT

Salt Lake City

mié. 11/12

5:34 pm-8:42 pm

1 stop4h 08m

Ontario

dom. 11/16

10:43 pm-8:33 am

1 stop8h 50m

$168

Salt Lake CityOntario

SLC - ONT

SLCONT

Salt Lake City

jue. 11/20

10:12 pm-11:57 pm

1 stop26h 45m

Ontario

lun. 11/24

7:06 pm-9:53 am

1 stop13h 47m

$190

Salt Lake CityOntario

SLC - ONT

SLCONT

Salt Lake City

lun. 11/10

9:28 am-12:51 pm

1 stop4h 23m

Ontario

mié. 11/12

8:45 am-8:00 pm

1 stop10h 15m

$190

Salt Lake CityOntario

SLC - ONT

SLCONT

Salt Lake City

mié. 11/19

1:10 pm-11:11 am

1 stop23h 01m

Ontario

sáb. 11/22

9:59 pm-5:51 pm

1 stop18h 52m

$192

Salt Lake CityOntario

SLC - ONT

SLCONT

Salt Lake City

vie. 12/5

4:56 pm-2:25 pm

1 stop22h 29m

Ontario

lun. 12/8

3:20 pm-11:37 am

1 stop19h 17m

$200

Salt Lake CityOntario

SLC - ONT

SLCONT

Salt Lake City

sáb. 11/8

5:34 pm-8:42 pm

1 stop4h 08m

Ontario

lun. 11/10

7:24 pm-4:39 pm

1 stop20h 15m

$220

Salt Lake CityOntario

SLC - ONT

SLCONT

Salt Lake City

sáb. 12/13

8:59 pm-9:55 pm

Nonstop1h 56m

Ontario

dom. 12/14

6:00 am-8:51 am

Nonstop1h 51m

$259

Salt Lake CityOntario

SLC - ONT

SLCONT

Salt Lake City

vie. 12/5

10:59 pm-11:58 pm

Nonstop1h 59m

Ontario

lun. 12/8

6:00 am-8:51 am

Nonstop1h 51m

$259

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/1

Showing 1-10 of 20 results
1
2

Best time to book a flight from Utah to Ontario

Have a flexible travel schedule? Discover the best time to fly to Ontario from Utah with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

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

What is the cheapest month to book a flight from Utah to Ontario?

Currently, January is the cheapest month in which you can book a flight from Utah to Ontario (average of $46). Flying from Utah to Ontario in July is currently the most expensive (average of $91). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from UT to ONT?

Find hourly flight availability from Utah to Ontario. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated noviembre 3, 2025.

It’s typically best to fly out from Utah to Ontario in the afternoon. Doing so could potentially save you 79% on the flight price compared to flying in the evening, which is usually more expensive.

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

Use this chart to determine the cheapest time to fly round-trip from Utah to Ontario. Price data was last updated on December 16, 2024.

Travelers seeking maximum savings on their Utah to Ontario flight should consider departing on Friday afternoons when fares are most often at their lowest. Tuesday evenings flights should be avoided if possible as fares are typically the most expensive at this time.

Weekly flight availability from Utah to Ontario

Explore weekly flight availability from Utah to Ontario. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated noviembre 3, 2025.

The most flights from USUT to ONT are scheduled on a Tuesday (8 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (2 on average).

Related info for your journey

Find useful and relevant information for your journey from Utah to Ontario. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly into for flights to Ontario from Utah?

    Located just 3.1 mi from the city center, Ontario (ONT) is the airport most travelers will use when flying to Ontario from Utah.

  • How popular is this Utah to Ontario flight route?

    Flights from Utah to Ontario have been viewed 3 times in the past calendar month.

  • How long is the flight from Utah to Ontario?

    Airlines like Frontier fly from Utah to Ontario in about 25h 34m. The time it takes to get you to your destination can typically vary by up to . Airlines will cover a distance of 557 mi.

  • What are the most reliable airlines from Utah to Ontario?

    Before booking your flight to Ontario from Utah, check out the most reliable airlines to get you to your destination on time: Air France (100%), SkyWest Airlines (97%), Delta( 94%).

  • What are the cheapest flights from Utah to Ontario?

    Looking at all options, your cheapest flight can be booked for $172. While the most popular route (Salt Lake City - Ontario) can be booked for $110 on average, our data indicates $299 when flying from Utah to Ontario.

  • Can I find deals for flights from Utah to Ontario that include hotel bookings?

    Yes. In addition to deals on Utah to Ontario flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Utah to Ontario?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Utah to Ontario.

  • Can I find deals for business class flights from Utah to Ontario?

    Yes. Cheapflights offers flight deals from Utah to Ontario by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Utah to Ontario?

    Currently, January is the cheapest month in which you can book a flight from Utah to Ontario (average of $46). Flying from Utah to Ontario in July is currently the most expensive (average of $91). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Utah to Ontario

See prices for flight routes from nearby airports that may be better suited for you.
John F Kennedy Intl to Los Angeles flights
John F Kennedy Intl to Las Vegas flights
Newark to Las Vegas flights
San Francisco to Los Angeles flights
John F Kennedy Intl to San Francisco flights
Seattle to Las Vegas flights
Dallas/Fort Worth to Las Vegas flights
Newark to Los Angeles flights
Seattle to Los Angeles flights
San Francisco to Las Vegas flights
O'Hare Intl to Las Vegas flights
Newark to San Francisco flights
LaGuardia to Los Angeles flights
San Francisco to Ontario flights
Dallas/Fort Worth to Los Angeles flights
Boston to Los Angeles flights
O'Hare Intl to Los Angeles flights
Dulles Intl to Las Vegas flights
Dulles Intl to Los Angeles flights
Reagan-National to Los Angeles flights
Boston to Las Vegas flights
Denver to Las Vegas flights
LaGuardia to Las Vegas flights
Seattle to Santa Ana flights
Ontario to San Francisco flights
Los Angeles to San Francisco flights
Los Angeles to Las Vegas flights
Seattle to San Diego flights
Dallas/Fort Worth to San Francisco flights
Minneapolis to Las Vegas flights
Atlanta to Las Vegas flights
O'Hare Intl to San Francisco flights
Baltimore to Los Angeles flights
Hobby to Las Vegas flights
John F Kennedy Intl to San Diego flights
San Francisco to Santa Ana flights
Reagan-National to Las Vegas flights
Seattle to Ontario flights
Baltimore to Las Vegas flights
Orlando to Las Vegas flights
Atlanta to Los Angeles flights
Santa Ana to San Francisco flights
San Jose to Las Vegas flights
LaGuardia to San Francisco flights
Portland to Los Angeles flights
Cleveland to Las Vegas flights
George Bush Intcntl to Las Vegas flights
Detroit to Las Vegas flights
Burbank to Las Vegas flights
Oakland to Las Vegas flights

Top 3 airlines flying from Utah to Ontario

Discover the top 3 airlines that operate flights from Utah to Ontario. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated noviembre 3, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$76Average$165FlexibilityNo cancel feeOn-time62%
DeltaCheapest$205Average$302FlexibilityNo cancel feeOn-timeN/A
SouthwestCheapest$214Average$292FlexibilityNo cancel feeOn-time63%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.