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$45+ 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 2/14. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — SLC
Dec 21 — Dec 281
Sun 12/21
Sun 12/28
1 adult, Economy
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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 November 21, 2025.

This CheapOair deal was found by Cheapflights users on 11/18. 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 12/46:15 amONT - SLC
1 stop6h 28mFrontier
Sat 12/67:20 amSLC - ONT
1 stop8h 05mFrontier
Deal found 11/18$110
This CheapOair deal was found by Cheapflights users on 11/18. 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 12/112:59 pmONT - SLC
1 stop21h 26mFrontier
Sun 12/147:20 amSLC - ONT
1 stop8h 46mFrontier
Deal found 11/18$128
This Kiwi.com deal was found by Cheapflights users on 11/19. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/186:45 amONT - SLC
1 stop16h 22mFrontier
Wed 12/2410:25 pmSLC - ONT
1 stop19h 57mFrontier
Deal found 11/19$131
This Kiwi.com deal was found by Cheapflights users on 11/19. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/186:45 amONT - SLC
1 stop16h 22mFrontier
Thu 12/251:49 pmSLC - ONT
1 stop4h 33mFrontier
Deal found 11/19$137
This CheapOair deal was found by Cheapflights users on 11/19. 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 12/256:07 pmONT - SLC
1 stop26h 26mFrontier
Mon 12/2910:25 pmSLC - ONT
1 stop23h 52mFrontier
Deal found 11/19$138
This CheapOair deal was found by Cheapflights users on 11/19. 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 12/186:45 amONT - SLC
1 stop16h 22mFrontier
Sun 12/219:23 pmSLC - ONT
1 stop24h 54mFrontier
Deal found 11/19$141
This Booking.com deal was found by Cheapflights users on 11/19. 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.
Sat 12/133:20 pmONT - SLC
1 stop7h 47mFrontier
Sat 12/278:58 pmSLC - ONT
1 stop28h 01mFrontier
Deal found 11/19$144
This Kiwi.com deal was found by Cheapflights users on 11/19. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/186:45 amONT - SLC
1 stop16h 22mFrontier
Mon 12/221:59 pmSLC - ONT
1 stop11h 13mFrontier
Deal found 11/19$148
This CheapOair deal was found by Cheapflights users on 11/19. 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 12/116:15 amONT - SLC
1 stop4h 26mFrontier
Mon 12/159:33 pmSLC - ONT
1 stop24h 44mFrontier
Deal found 11/19$150
This Delta deal was found by Cheapflights users on 11/19. 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.
Wed 12/101:29 pmONT - CDC
1 stop3h 47mDelta
Wed 12/177:00 pmCDC - ONT
1 stop5h 58mDelta
Deal found 11/19$332
This American Airlines deal was found by Cheapflights users on 11/20. 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.
Fri 12/54:47 pmONT - SGU
1 stop6h 21mAmerican Airlines
Tue 12/912:15 pmSGU - ONT
1 stop4h 47mAmerican Airlines
Deal found 11/20$383
This Delta deal was found by Cheapflights users on 11/19. 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.
Wed 12/246:00 amONT - SGU
1 stop3h 49mDelta
Sun 12/286:42 pmSGU - ONT
1 stop6h 12mDelta
Deal found 11/19$396

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 November 21, 2025.

Most accurate provider

CheapOair
3 stars

Most trusted provider

CheapOair
3 stars

Round-trip from

$110
(CheapOair)

One-way from

$45
(Kiwi.com)

Popular in

November

Cheapest in

September

Average price

$252

Good round-trip deal

$296 or less

Good one-way deal

$179 or less
Provider with most accurate pricing for Los Angeles-Salt Lake City flight deals.
Search Deals
Provider most trusted by Cheapflights users for Los Angeles-Salt Lake City flights.
Search Deals
From Ontario to Utah
Search Deals
One-way flight from Ontario to Utah
Search Deals
Highest demand for flights based on searches. 8% potential increase in price ($18 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($5 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 Ontario to Utah.
Search Deals
Price to beat on a one-way flight from Ontario to Utah.
Search Deals

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 November 21, 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

Wed 1/21

3:07 pm-11:20 am

1 stop19h 13m

Salt Lake City

Mon 1/26

9:39 am-10:32 am

Nonstop1h 53m

$156

OntarioSalt Lake City

ONT - SLC

ONTSLC

Ontario

Thu 12/11

6:15 am-1:43 pm

1 stop6h 28m

Salt Lake City

Sat 12/13

2:38 pm-9:17 pm

1 stop7h 39m

$162

OntarioSalt Lake City

ONT - SLC

ONTSLC

Ontario

Thu 2/19

6:30 am-1:43 pm

1 stop6h 13m

Salt Lake City

Thu 2/26

2:38 pm-9:17 pm

1 stop7h 39m

$162

OntarioSalt Lake City

ONT - SLC

ONTSLC

Ontario

Sat 12/20

5:16 pm-8:12 am

2 stops13h 56m

Salt Lake City

Thu 12/25

1:49 pm-9:17 pm

1 stop8h 28m

$198

OntarioSalt Lake City

ONT - SLC

ONTSLC

Ontario

Wed 12/17

6:40 am-8:30 am

1 stop24h 50m

Salt Lake City

Sat 12/27

9:30 pm-10:28 pm

Nonstop1h 58m

$262

OntarioSalt Lake City

ONT - SLC

ONTSLC

Ontario

Wed 12/17

6:40 am-8:30 am

1 stop24h 50m

Salt Lake City

Sun 12/21

11:25 am-12:29 pm

Nonstop2h 04m

$262

OntarioSalt Lake City

ONT - SLC

ONTSLC

Ontario

Tue 12/16

5:49 pm-8:30 am

1 stop13h 41m

Salt Lake City

Fri 12/26

10:55 pm-11:54 pm

Nonstop1h 59m

$262

OntarioSalt Lake City

ONT - SLC

ONTSLC

Ontario

Tue 1/27

7:00 am-5:34 pm

2 stops9h 34m

Salt Lake City

Fri 1/30

11:56 am-1:06 pm

1 stop26h 10m

$268

OntarioSalt Lake City

ONT - SLC

ONTSLC

Ontario

Wed 2/18

7:30 am-10:01 pm

1 stop13h 31m

Salt Lake City

Sat 2/28

8:55 pm-9:48 pm

Nonstop1h 53m

$272

OntarioSalt Lake City

ONT - SLC

ONTSLC

Ontario

Thu 2/19

7:30 am-8:33 am

1 stop24h 03m

Salt Lake City

Sun 3/1

10:59 pm-11:53 pm

Nonstop1h 54m

$272

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/19

Showing 1-10 of 32 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, May is the cheapest month in which you can book a flight from Ontario to Utah (average of $40). Flying from Ontario to Utah in July is currently the most expensive (average of $89). 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 November 21, 2025.

A simple way to save on the total cost of your ticket is to fly from Ontario to Utah in the evening. If you’re flexible enough to do this you can expect to save up to 39% on your trip compared to booking a flight at noon.

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

Use this chart to determine the cheapest time to fly round-trip from Ontario to Utah. Price data was last updated on October 27, 2024.

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

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 November 21, 2025.

The most flights from ONT to USUT 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 (3 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 November 21, 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
4,251 reviews

Overall

8.0

Boarding

8.1

Crew

8.6

Entertainment

7.5

Food

7.0

Comfort

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
4,251 reviews
Southwest
8.0
Very good
4,251 reviews

Overall

8.0

Boarding

8.1

Crew

8.6

Entertainment

7.5

Food

7.0

Comfort

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
7.9
Good
8,002 reviews
Southwest
8.0
Very good
4,251 reviews

Overall

8.0

Boarding

8.1

Crew

8.6

Entertainment

7.5

Food

7.0

Comfort

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
11,047 reviews
Southwest
8.0
Very good
4,251 reviews

Overall

8.0

Boarding

8.1

Crew

8.6

Entertainment

7.5

Food

7.0

Comfort

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
3,103 reviews
Southwest
8.0
Very good
4,251 reviews

Overall

8.0

Boarding

8.1

Crew

8.6

Entertainment

7.5

Food

7.0

Comfort

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 19h 13m. Frontier provides one of the quickest options available for as low as $156. 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 - Cedar City as they are the most popular.

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

    Consider Aeromexico (98%), Korean Air (96%) or SkyWest Airlines (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 $671, our data indicates the cheapest price to be $138. The most popular route (Ontario - Salt Lake City), is priced around $128.

  • 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, May is the cheapest month in which you can book a flight from Ontario to Utah (average of $40). Flying from Ontario to Utah in July is currently the most expensive (average of $89). 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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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 November 21, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$74Average$175FlexibilityNo cancel feeOn-time62%
DeltaCheapest$199Average$362FlexibilityNo cancel feeOn-timeN/A
SouthwestCheapest$202Average$318FlexibilityNo cancel feeOn-time63%
American AirlinesCheapest$236Average$330FlexibilityNo cancel feeOn-time71%

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