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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 9/18. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — SLC
Aug 23 — Aug 301
Sat 8/23
Sat 8/30
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 August 18, 2025.

Round-trip from

$185
(Kiwi.com)

One-way from

$72
(CheapOair)

Popular in

November

Cheapest in

October

Average price

$169

Good round-trip deal

$246 or less

Good one-way deal

$188 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. 9% potential increase in price ($19 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($8 potential savings vs. average RT price).
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Average for round-trip flights in August 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 August 18, 2025.

This CheapOair deal was found by Cheapflights users on 8/18. 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 8/216:00 amONT - SLC
1 stop3h 52mFrontier
Tue 8/268:00 amSLC - ONT
1 stop16h 50mFrontier
Deal found 8/18$182
This CheapOair deal was found by Cheapflights users on 8/18. 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.
Fri 8/2212:59 amONT - SLC
1 stop20h 25mFrontier
Wed 8/2712:52 pmSLC - ONT
1 stop20h 53mFrontier
Deal found 8/18$184
This Frontier deal was found by Cheapflights users on 8/17. 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.
Sun 8/246:00 amONT - SLC
1 stop3h 52mFrontier
Wed 9/312:52 pmSLC - ONT
1 stop11h 58mFrontier
Deal found 8/17$185
This Frontier deal was found by Cheapflights users on 8/17. 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.
Mon 8/256:00 amONT - SLC
1 stop3h 52mFrontier
Thu 9/48:23 pmSLC - ONT
2 stops11h 54mFrontier
Deal found 8/17$186
This CheapOair deal was found by Cheapflights users on 8/16. 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.
Fri 8/226:00 amONT - SLC
1 stop3h 52mFrontier
Sun 8/248:02 pmSLC - ONT
1 stop16h 49mFrontier
Deal found 8/16$187
This CheapOair deal was found by Cheapflights users on 8/17. 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.
Sun 8/1712:59 amONT - SLC
1 stop6h 33mFrontier
Mon 8/259:11 pmSLC - ONT
1 stop20h 07mFrontier
Deal found 8/17$188
This CheapOair deal was found by Cheapflights users on 8/16. 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.
Tue 8/1912:59 amONT - SLC
1 stop9h 53mFrontier
Fri 8/229:11 pmSLC - ONT
1 stop15h 56mFrontier
Deal found 8/16$189
This FlightHub deal was found by Cheapflights users on 8/15. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/1812:59 amONT - SLC
1 stop20h 25mFrontier
Sun 8/248:02 pmSLC - ONT
1 stop12h 31mFrontier
Deal found 8/15$190
This CheapOair deal was found by Cheapflights users on 8/17. 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 8/2012:59 amONT - SLC
1 stop8h 00mFrontier
Thu 8/2811:47 amSLC - ONT
1 stop12h 53mFrontier
Deal found 8/17$191
This Mytrip deal was found by Cheapflights users on 8/17. 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.
Fri 8/225:09 pmONT - SLC
1 stop18h 30mFrontier
Tue 9/28:00 amSLC - ONT
1 stop16h 50mFrontier
Deal found 8/17$193
This Frontier deal was found by Cheapflights users on 8/17. 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.
Tue 9/168:00 amONT - SLC
1 stop8h 15mFrontier
Fri 9/268:27 amSLC - ONT
2 stops12h 27mFrontier
Deal found 8/17$194
This Delta deal was found by Cheapflights users on 8/17. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/286:00 amONT - SGU
1 stop3h 44mDelta
Tue 11/48:50 amSGU - ONT
1 stop4h 24mDelta
Deal found 8/17$276

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 August 18, 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

Thu 9/25

9:16 am-6:40 pm

1 stop8h 24m

Salt Lake City

Sun 9/28

9:09 pm-8:56 pm

2 stops24h 47m

$185

OntarioSalt Lake City

ONT - SLC

ONTSLC

Ontario

Thu 10/2

7:30 pm-8:34 am

1 stop12h 04m

Salt Lake City

Sun 10/5

9:59 pm-8:56 pm

2 stops23h 57m

$185

OntarioSalt Lake City

ONT - SLC

ONTSLC

Ontario

Tue 9/30

8:00 am-10:26 pm

2 stops13h 26m

Salt Lake City

Thu 10/2

4:10 pm-8:56 pm

1 stop5h 46m

$186

OntarioSalt Lake City

ONT - SLC

ONTSLC

Ontario

Thu 9/25

7:30 pm-7:32 am

2 stops11h 02m

Salt Lake City

Wed 10/1

6:05 pm-9:56 pm

1 stop4h 51m

$186

OntarioSalt Lake City

ONT - SLC

ONTSLC

Ontario

Fri 9/12

8:59 pm-3:37 pm

2 stops17h 38m

Salt Lake City

Sun 9/14

9:45 pm-7:53 am

1 stop11h 08m

$186

OntarioSalt Lake City

ONT - SLC

ONTSLC

Ontario

Mon 9/29

6:00 am-10:42 am

1 stop3h 42m

Salt Lake City

Wed 10/1

1:42 pm-8:26 am

2 stops19h 44m

$186

OntarioSalt Lake City

ONT - SLC

ONTSLC

Ontario

Mon 10/6

10:28 pm-11:35 am

2 stops12h 07m

Salt Lake City

Fri 10/10

3:43 pm-12:07 am

1 stop9h 24m

$186

OntarioSalt Lake City

ONT - SLC

ONTSLC

Ontario

Sun 11/9

10:43 pm-7:32 am

2 stops7h 49m

Salt Lake City

Wed 11/12

5:34 pm-8:42 pm

1 stop4h 08m

$186

OntarioSalt Lake City

ONT - SLC

ONTSLC

Ontario

Wed 9/3

12:59 am-11:15 am

1 stop9h 16m

Salt Lake City

Thu 9/4

4:10 pm-8:56 pm

1 stop5h 46m

$186

OntarioSalt Lake City

ONT - SLC

ONTSLC

Ontario

Fri 9/5

10:40 pm-1:12 pm

2 stops13h 32m

Salt Lake City

Mon 9/8

4:02 pm-7:54 pm

1 stop4h 52m

$186

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/15

Showing 1-10 of 50 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 August 18, 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 August 18, 2025.

The most flights from ONT to USUT are scheduled on a Friday (12 on average). You will have fewer flight options on Thursday, which is when the least amount of flights are scheduled (9 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 August 18, 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
4,246 reviews

Entertainment

7.5

Comfort

8.0

Boarding

8.1

Food

7.0

Crew

8.6

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
4,246 reviews
Southwest
8.0
Very good
4,246 reviews

Entertainment

7.5

Comfort

8.0

Boarding

8.1

Food

7.0

Crew

8.6

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
7,981 reviews
Southwest
8.0
Very good
4,246 reviews

Entertainment

7.5

Comfort

8.0

Boarding

8.1

Food

7.0

Crew

8.6

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
4,246 reviews

Entertainment

7.5

Comfort

8.0

Boarding

8.1

Food

7.0

Crew

8.6

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
3,212 reviews
Southwest
8.0
Very good
4,246 reviews

Entertainment

7.5

Comfort

8.0

Boarding

8.1

Food

7.0

Crew

8.6

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, 7 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 3h 44m. Frontier provides one of the quickest options available for as low as $276. The distance from Ontario to Utah is about 308 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 - Cedar City as they are the most popular.

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

    Consider Air France (99%), SkyWest Airlines (96%) or Aeromexico (96%) 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 $683, our data indicates the cheapest price to be $138. 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 August 18, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$63Average$156FlexibilityNo cancel feeOn-time62%
DeltaCheapest$188Average$307FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$198Average$362FlexibilityNo cancel feeOn-time71%
SouthwestCheapest$202Average$309FlexibilityNo cancel feeOn-time63%

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