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$64+ 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 4/17. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — SLC
Mar 19 — Mar 261
Thu 3/19
Thu 3/26
1 adult, Economy
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Cheap 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 February 17, 2026.

This Kiwi.com deal was found by Cheapflights users on 2/16. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/1412:59 am
ONT
-
SLC
1 stop9h 15m
Frontier
Sun 4/1910:33 pm
SLC
-
ONT
1 stop10h 31m
Frontier
Deal found 2/16$131
This Kiwi.com deal was found by Cheapflights users on 2/12. 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.
Mon 3/309:49 pm
ONT
-
SLC
1 stop10h 11m
Frontier
Mon 4/610:52 pm
SLC
-
ONT
1 stop16h 34m
Frontier
Deal found 2/12$132
This Kiwi.com deal was found by Cheapflights users on 2/14. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/2812:59 am
ONT
-
SLC
1 stop9h 15m
Frontier
Fri 5/19:59 pm
SLC
-
ONT
1 stop26h 56m
Frontier
Deal found 2/14$134
This Super.com deal was found by Cheapflights users on 2/15. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/73:21 pm
ONT
-
SLC
Nonstop1h 52m
Frontier
Sun 4/128:40 pm
SLC
-
ONT
Nonstop1h 52m
Frontier
Deal found 2/15$136
This Kiwi.com deal was found by Cheapflights users on 2/16. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/186:15 am
ONT
-
SLC
1 stop16h 59m
Frontier
Sun 3/221:04 pm
SLC
-
ONT
1 stop20h 02m
Frontier
Deal found 2/16$137
This Kiwi.com deal was found by Cheapflights users on 2/14. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/102:23 pm
ONT
-
SLC
1 stop17h 37m
Frontier
Sun 3/1510:33 pm
SLC
-
ONT
1 stop10h 33m
Frontier
Deal found 2/14$139
This Kiwi.com deal was found by Cheapflights users on 2/15. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/99:40 pm
ONT
-
SLC
1 stop10h 20m
Frontier
Mon 3/1610:10 am
SLC
-
ONT
1 stop6h 27m
Frontier
Deal found 2/15$140
This Kiwi.com deal was found by Cheapflights users on 2/15. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/99:40 pm
ONT
-
SLC
1 stop10h 20m
Frontier
Sun 3/1510:33 pm
SLC
-
ONT
1 stop10h 33m
Frontier
Deal found 2/15$141
This Kiwi.com deal was found by Cheapflights users on 2/15. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 3/268:07 am
ONT
-
SLC
1 stop9h 58m
Frontier
Sun 3/2910:33 pm
SLC
-
ONT
1 stop10h 33m
Frontier
Deal found 2/15$146
This Kiwi.com deal was found by Cheapflights users on 2/15. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/910:50 am
ONT
-
SLC
1 stop22h 44m
Frontier
Sun 4/129:55 pm
SLC
-
ONT
1 stop11h 09m
Frontier
Deal found 2/15$147
This Delta deal was found by Cheapflights users on 2/15. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/26:00 am
ONT
-
SGU
1 stop3h 43m
Delta
Sat 6/61:10 pm
SGU
-
ONT
1 stop4h 08m
Delta
Deal found 2/15$238
This Delta deal was found by Cheapflights users on 2/14. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/286:00 am
ONT
-
SGU
1 stop3h 43m
Delta
Sun 8/301:10 pm
SGU
-
ONT
1 stop4h 04m
Delta
Deal found 2/14$277

Find flight deals from Ontario to Utah

Keep the following information in mind while searching for Ontario to Utah flight deals. Data was last updated February 17, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$128
(Kiwi.com)

One-way from

$64
(Frontier)

Popular in

January

Cheapest in

August

Average price

$197

Good round-trip deal

$281 or less

Good one-way deal

$143 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 ($19 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($4 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in February 2026
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 February 17, 2026.
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 4/16

6:15 am-4:49 pm

1 stop9h 34m

Salt Lake City

Sun 4/19

10:33 pm-8:04 am

1 stop10h 31m

$160

OntarioSalt Lake City

ONT - SLC

ONTSLC

Ontario

Sat 2/28

6:00 am-11:45 am

1 stop4h 45m

Salt Lake City

Mon 3/2

2:12 pm-5:48 pm

1 stop4h 36m

$181

OntarioSalt Lake City

ONT - SLC

ONTSLC

Ontario

Sat 2/28

6:00 am-8:44 am

1 stop25h 44m

Salt Lake City

Tue 3/3

8:01 pm-9:34 pm

1 stop26h 33m

$181

OntarioSalt Lake City

ONT - SLC

ONTSLC

Ontario

Thu 2/26

7:22 pm-8:30 am

1 stop12h 08m

Salt Lake City

Tue 3/3

2:28 pm-1:11 pm

1 stop23h 43m

$181

OntarioSalt Lake City

ONT - SLC

ONTSLC

Ontario

Fri 3/13

11:17 am-6:00 pm

1 stop5h 43m

Salt Lake City

Tue 3/17

9:55 am-1:28 pm

1 stop4h 33m

$195

OntarioSalt Lake City

ONT - SLC

ONTSLC

Ontario

Fri 3/13

11:17 am-6:00 pm

1 stop5h 43m

Salt Lake City

Wed 3/18

9:55 am-1:28 pm

1 stop4h 33m

$195

OntarioSalt Lake City

ONT - SLC

ONTSLC

Ontario

Fri 2/27

6:00 am-12:14 am

1 stop17h 14m

Salt Lake City

Sun 3/1

12:20 pm-1:13 pm

Nonstop1h 53m

$196

OntarioSalt Lake City

ONT - SLC

ONTSLC

Ontario

Wed 4/8

6:00 am-8:50 am

Nonstop1h 50m

Salt Lake City

Sun 4/12

10:56 pm-11:51 pm

Nonstop1h 55m

$199

OntarioSalt Lake City

ONT - SLC

ONTSLC

Ontario

Sat 3/7

2:46 pm-7:29 pm

1 stop3h 43m

Salt Lake City

Tue 3/10

9:45 am-1:28 pm

1 stop4h 43m

$205

OntarioSalt Lake City

ONT - SLC

ONTSLC

Ontario

Tue 3/3

8:40 am-9:49 pm

1 stop12h 09m

Salt Lake City

Fri 3/6

8:38 am-6:14 pm

1 stop10h 36m

$205

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/16

Showing 1-10 of 42 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 $41). 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 February 17, 2026.

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 71% on your trip compared to booking a flight in the afternoon.

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 February 17, 2026.

The most flights from ONT to USUT are scheduled on a Friday (9 on average). You will have fewer flight options on Thursday, which is when the least amount of flights are scheduled (5 on average).

How much does it cost to fly round-trip from Ontario to Utah?

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 February 17, 2026.
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
4,289 reviews

Overall

8.0

Boarding

8.1

Entertainment

7.5

Food

7.0

Comfort

8.0

Crew

8.6

Reviews

1 / 20
10.0
Excellent

William Drew,Nov 2025

SJC - HNL

Flight crew was amazing! Usually they're very good on Southwest, but this crew went above and beyond. I have never ever seen so many rounds of drink service on a flight before.
Southwest
8.0
Very good
4,289 reviews
Southwest
8.0
Very good
4,289 reviews

Overall

8.0

Boarding

8.1

Entertainment

7.5

Food

7.0

Comfort

8.0

Crew

8.6

Reviews

1 / 20
10.0
Excellent

William Drew,Nov 2025

SJC - HNL

Flight crew was amazing! Usually they're very good on Southwest, but this crew went above and beyond. I have never ever seen so many rounds of drink service on a flight before.
Delta
7.9
Good
8,205 reviews
Southwest
8.0
Very good
4,289 reviews

Overall

8.0

Boarding

8.1

Entertainment

7.5

Food

7.0

Comfort

8.0

Crew

8.6

Reviews

1 / 20
10.0
Excellent

William Drew,Nov 2025

SJC - HNL

Flight crew was amazing! Usually they're very good on Southwest, but this crew went above and beyond. I have never ever seen so many rounds of drink service on a flight before.
American Airlines
7.2
Good
11,294 reviews
Southwest
8.0
Very good
4,289 reviews

Overall

8.0

Boarding

8.1

Entertainment

7.5

Food

7.0

Comfort

8.0

Crew

8.6

Reviews

1 / 20
10.0
Excellent

William Drew,Nov 2025

SJC - HNL

Flight crew was amazing! Usually they're very good on Southwest, but this crew went above and beyond. I have never ever seen so many rounds of drink service on a flight before.
Frontier
5.7
Fair
3,048 reviews
Southwest
8.0
Very good
4,289 reviews

Overall

8.0

Boarding

8.1

Entertainment

7.5

Food

7.0

Comfort

8.0

Crew

8.6

Reviews

1 / 20
10.0
Excellent

William Drew,Nov 2025

SJC - HNL

Flight crew was amazing! Usually they're very good on Southwest, but this crew went above and beyond. I have never ever seen so many rounds of drink service on a flight before.

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, 4 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 4h 06m. Frontier provides one of the quickest options available for as low as $238. 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 cheapest airlines to fly from Ontario to Utah one-way?

    One-way options have recently been found by users for as low as $69 on Frontier. Other airlines that offer cheap prices include Southwest from $109 and Delta from $148 one-way.

  • 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 China Eastern (100%), Volaris (100%) or Air France (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 $710, our data indicates the cheapest price to be $85. The most popular route (Ontario - Salt Lake City), is priced around $136.

  • 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 $41). 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.

See more FAQs

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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 February 17, 2026.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$77Average$177FlexibilityNo cancel feeOn-time62%
American AirlinesCheapest$197Average$312FlexibilityNo cancel feeOn-time71%
DeltaCheapest$199Average$309FlexibilityNo cancel feeOn-timeN/A
SouthwestCheapest$202Average$323FlexibilityNo cancel feeOn-time63%

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