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$72+ Cheap flights from Ontario (ONT) to Utah

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 11/7. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — SLC
Oct 16 — Oct 231
Thu 10/16
Thu 10/23
1 adult, Economy
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Cheap flight deals from Ontario to Utah

Keep the following information in mind while searching for Ontario to Utah flight deals. Data was last updated September 16, 2025.

Round-trip from

$137
(Cheapflightsfares)

One-way from

$72
(CheapOair)

Popular in

November

Cheapest in

October

Average price

$177

Good round-trip deal

$261 or less

Good one-way deal

$174 or less
From Ontario to Utah
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One-way flight from Ontario to Utah
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Highest demand for flights based on searches. 8% potential increase in price ($19 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($7 potential savings vs. average RT price).
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Average for round-trip flights in September 2025
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Price to beat on a round-trip flight from Ontario to Utah.
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Price to beat on a one-way flight from Ontario to Utah.
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Find flight deals from Ontario to Utah

Cheapest flights from Ontario to Utah
Explore the most affordable flight options available from Ontario to Utah. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 16, 2025.

This Cheapflightsfares deal was found by Cheapflights users on 9/15. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/2310:30 amONT - SLC
1 stop5h 29mFrontier
Thu 10/237:28 pmSLC - ONT
1 stop3h 27mFrontier
Deal found 9/15$137
This Mytrip deal was found by Cheapflights users on 9/15. 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.
Sat 10/48:59 pmONT - SLC
1 stop9h 33mFrontier
Mon 10/69:45 pmSLC - ONT
1 stop27h 05mFrontier
Deal found 9/15$142
This CheapOair deal was found by Cheapflights users on 9/14. 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.
Thu 10/96:53 amONT - SLC
1 stop23h 39mFrontier
Sun 10/1210:05 pmSLC - ONT
1 stop26h 45mFrontier
Deal found 9/14$143
This CheapOair deal was found by Cheapflights users on 9/14. 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.
Thu 9/257:30 pmONT - SLC
1 stop14h 22mFrontier
Sun 9/288:40 pmSLC - ONT
1 stop18h 20mFrontier
Deal found 9/14$144
This Booking.com deal was found by Cheapflights users on 9/14. 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.
Fri 9/264:08 pmONT - SLC
1 stop7h 06mFrontier
Mon 9/291:25 pmSLC - ONT
1 stop8h 31mFrontier
Deal found 9/14$145
This CheapOair deal was found by Cheapflights users on 9/16. 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.
Mon 9/228:59 pmONT - SLC
1 stop24h 27mFrontier
Fri 10/1010:05 pmSLC - ONT
1 stop26h 45mFrontier
Deal found 9/16$149
This CheapOair deal was found by Cheapflights users on 9/14. 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.
Thu 9/186:00 amONT - SLC
1 stop8h 20mFrontier
Sun 9/218:40 pmSLC - ONT
1 stop11h 37mFrontier
Deal found 9/14$150
This CheapOair deal was found by Cheapflights users on 9/13. 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.
Thu 9/186:00 amONT - SLC
1 stop8h 20mFrontier
Thu 9/189:45 pmSLC - ONT
1 stop11h 08mFrontier
Deal found 9/13$156
This CheapOair deal was found by Cheapflights users on 9/15. 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.
Tue 9/168:59 pmONT - SLC
1 stop24h 27mFrontier
Tue 9/238:45 amSLC - ONT
1 stop12h 09mFrontier
Deal found 9/15$158
This CheapOair deal was found by Cheapflights users on 9/14. 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.
Wed 10/86:53 amONT - SLC
1 stop14h 26mFrontier
Wed 10/158:32 amSLC - ONT
1 stop16h 18mFrontier
Deal found 9/14$159
This Frontier deal was found by Cheapflights users on 9/15. 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.
Fri 9/194:08 pmONT - SLC
1 stop7h 06mFrontier
Mon 10/61:25 pmSLC - ONT
1 stop8h 31mFrontier
Deal found 9/15$160
This American Airlines deal was found by Cheapflights users on 9/14. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/286:15 amONT - SGU
1 stop3h 58mAmerican Airlines
Thu 10/307:30 amSGU - ONT
1 stop5h 31mAmerican Airlines
Deal found 9/14$310

Cheapflights Fare Finder

 
Customize your flight search to find flights from Ontario to Utah 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 September 16, 2025.
Use the filters below to find and compare flights from Ontario to Utah that are best for you.

Fly from

Ontario

Fly to

Utah

Route

Depart

Return

Price

OntarioSalt Lake City

ONT - SLC

ONTSLC

Ontario

Tue 10/14

2:30 pm-10:30 pm

2 stops7h 00m

Salt Lake City

Tue 10/21

5:55 am-10:35 am

2 stops5h 40m

$227

OntarioSalt Lake City

ONT - SLC

ONTSLC

Ontario

Mon 2/9

5:57 pm-8:45 pm

Nonstop1h 48m

Salt Lake City

Sat 2/14

2:38 pm-9:17 pm

1 stop7h 39m

$246

OntarioSalt Lake City

ONT - SLC

ONTSLC

Ontario

Fri 11/14

1:20 pm-4:07 pm

Nonstop1h 47m

Salt Lake City

Mon 11/17

11:30 am-12:18 pm

Nonstop1h 48m

$259

OntarioSalt Lake City

ONT - SLC

ONTSLC

Ontario

Sun 2/15

6:00 am-8:52 am

Nonstop1h 52m

Salt Lake City

Tue 2/24

10:55 pm-11:52 pm

Nonstop1h 57m

$259

OntarioSalt Lake City

ONT - SLC

ONTSLC

Ontario

Sat 11/15

1:20 pm-4:07 pm

Nonstop1h 47m

Salt Lake City

Sat 11/22

8:45 pm-9:35 pm

Nonstop1h 50m

$259

OntarioSalt Lake City

ONT - SLC

ONTSLC

Ontario

Fri 10/24

4:35 pm-7:28 pm

Nonstop1h 53m

Salt Lake City

Fri 11/7

8:35 pm-9:20 pm

Nonstop1h 45m

$259

OntarioSalt Lake City

ONT - SLC

ONTSLC

Ontario

Sat 11/8

9:50 am-12:42 pm

Nonstop1h 52m

Salt Lake City

Wed 11/12

11:30 am-12:18 pm

Nonstop1h 48m

$259

OntarioSaint George

ONT - SGU

ONTSGU

Ontario

Tue 10/28

6:15 am-11:13 am

1 stop3h 58m

Saint George

Thu 10/30

7:30 am-12:01 pm

1 stop5h 31m

$310

OntarioCedar City

ONT - CDC

ONTCDC

Ontario

Fri 10/17

1:15 pm-6:15 pm

1 stop4h 00m

Cedar City

Sun 10/19

6:50 pm-11:39 pm

1 stop5h 49m

$312

OntarioVernal

ONT - VEL

ONTVEL

Ontario

Tue 9/30

8:59 pm-7:20 pm

1 stop21h 21m

Vernal Regional

Sat 10/4

8:30 am-7:23 am

1 stop23h 53m

$316

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/13

Showing 1-10 of 40 results
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Best time to book a flight from Ontario to Utah

Have a flexible travel schedule? Discover the best time to fly to Utah from Ontario 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 Ontario to Utah

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

Currently, October is the cheapest month in which you can book a flight from Ontario to Utah (average of $277). Flying from Ontario to Utah in March is currently the most expensive (average of $417). 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 ONT to UT?

Find hourly flight availability from Ontario to Utah. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated September 16, 2025.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Ontario to Utah as you normally would.

Weekly flight availability from Ontario to Utah

Explore weekly flight availability from Ontario to Utah. 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 September 16, 2025.

The most flights from ONT to USUT are scheduled on a Monday (11 on average). You will have fewer flight options on Sunday, which is when the least amount of flights are scheduled (2 on average).

Reviews of airlines servicing Utah

Get insights into the airlines that provide service to Utah. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Utah. Reviews last updated September 16, 2025.
Read through reviews of airlines operating flights from Ontario to Utah, such as Southwest, Delta, and American Airlines. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.0
Very good
4,242 reviews

Comfort

8.0

Food

7.0

Crew

8.6

Entertainment

7.5

Boarding

8.1

Overall

8.0

Reviews

1 / 20
8.0
Excellent

Walter,Aug 2025

OAK - SAN

Dozens of flights and I've never seen a row's beverages forgotten. I even went back and asked the attendant to check on them and nothing. I really hope it didn't have something to do with the Black mother with her kid in the row. Otherwise it was a typical Southwest flight, rapid boarding, tolerable leg room.
Southwest
8.0
Very good
4,242 reviews
Southwest
8.0
Very good
4,242 reviews

Comfort

8.0

Food

7.0

Crew

8.6

Entertainment

7.5

Boarding

8.1

Overall

8.0

Reviews

1 / 20
8.0
Excellent

Walter,Aug 2025

OAK - SAN

Dozens of flights and I've never seen a row's beverages forgotten. I even went back and asked the attendant to check on them and nothing. I really hope it didn't have something to do with the Black mother with her kid in the row. Otherwise it was a typical Southwest flight, rapid boarding, tolerable leg room.
Delta
8.0
Very good
7,957 reviews
Southwest
8.0
Very good
4,242 reviews

Comfort

8.0

Food

7.0

Crew

8.6

Entertainment

7.5

Boarding

8.1

Overall

8.0

Reviews

1 / 20
8.0
Excellent

Walter,Aug 2025

OAK - SAN

Dozens of flights and I've never seen a row's beverages forgotten. I even went back and asked the attendant to check on them and nothing. I really hope it didn't have something to do with the Black mother with her kid in the row. Otherwise it was a typical Southwest flight, rapid boarding, tolerable leg room.
American Airlines
7.2
Good
10,000 reviews
Southwest
8.0
Very good
4,242 reviews

Comfort

8.0

Food

7.0

Crew

8.6

Entertainment

7.5

Boarding

8.1

Overall

8.0

Reviews

1 / 20
8.0
Excellent

Walter,Aug 2025

OAK - SAN

Dozens of flights and I've never seen a row's beverages forgotten. I even went back and asked the attendant to check on them and nothing. I really hope it didn't have something to do with the Black mother with her kid in the row. Otherwise it was a typical Southwest flight, rapid boarding, tolerable leg room.
Frontier
5.8
Fair
3,174 reviews
Southwest
8.0
Very good
4,242 reviews

Comfort

8.0

Food

7.0

Crew

8.6

Entertainment

7.5

Boarding

8.1

Overall

8.0

Reviews

1 / 20
8.0
Excellent

Walter,Aug 2025

OAK - SAN

Dozens of flights and I've never seen a row's beverages forgotten. I even went back and asked the attendant to check on them and nothing. I really hope it didn't have something to do with the Black mother with her kid in the row. Otherwise it was a typical Southwest flight, rapid boarding, tolerable leg room.

Related info for your journey

Find useful and relevant information for your journey from Ontario to Utah. 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 from for flights from Ontario to Utah?

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

  • How popular is this Ontario to Utah flight route?

    Within the past month, 6 users have taken a look at flights from Ontario to Utah.

  • How long is the flight from Ontario to Utah?

    A quick flight from Ontario to Utah can take about 1h 47m. Southwest provides one of the quickest options available for as low as $259. The distance from Ontario to Utah is about 557 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

  • What are the most popular routes from Ontario to Utah?

    When deciding which route to take from Ontario to Utah consider Ontario - Salt Lake City, Ontario - Saint George or Ontario - Vernal Regional as they are the most popular.

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

    Consider Air France (97%), Virgin Atlantic (95%) or Delta (95%) when booking your flight. These represent the most reliable airlines when flying from Ontario to Utah.

  • What are the cheapest flights from Ontario to Utah?

    Looking for the cheapest flight from Ontario to Utah? While on average our users pay $668, our data indicates the cheapest price to be $132. The most popular route (Ontario - Salt Lake City), is priced around $143.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Ontario to Utah 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 Ontario to Utah?

    Currently, October is the cheapest month in which you can book a flight from Ontario to Utah (average of $277). Flying from Ontario to Utah in March is currently the most expensive (average of $417). 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.

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Alternative routes for Ontario to Utah

See prices for flight routes from nearby airports that may be better suited for you.
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Top 4 airlines flying from Ontario to Utah

Discover the top 4 airlines that operate flights from Ontario to Utah. 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 September 16, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$78Average$185FlexibilityNo cancel feeOn-time62%
DeltaCheapest$199Average$362FlexibilityNo cancel feeOn-timeN/A
SouthwestCheapest$202Average$312FlexibilityNo cancel feeOn-time63%
American AirlinesCheapest$218Average$352FlexibilityNo cancel feeOn-time71%

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