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$54+ 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 4/9. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — SLC
Apr 2 — Apr 91
Thu 4/2
Thu 4/9
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 March 3, 2026.

This Frontier deal was found by Cheapflights users on 3/3. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/179:12 am
ONT
-
SLC
Nonstop1h 52m
Frontier
Mon 4/209:49 am
SLC
-
ONT
Nonstop2h 00m
Frontier
Deal found 3/3$108
This Kiwi.com deal was found by Cheapflights users on 3/1. 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 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 stop21h 15m
Frontier
Sat 4/183:19 pm
SLC
-
ONT
1 stop9h 36m
Frontier
Deal found 3/1$125
This Kiwi.com deal was found by Cheapflights users on 3/1. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/1312:59 am
ONT
-
SLC
1 stop9h 15m
Frontier
Sat 4/183:19 pm
SLC
-
ONT
1 stop9h 36m
Frontier
Deal found 3/1$128
This Kiwi.com deal was found by Cheapflights users on 3/3. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 3/217:31 pm
ONT
-
SLC
1 stop12h 29m
Frontier
Tue 3/249:45 am
SLC
-
ONT
1 stop4h 43m
Frontier
Deal found 3/3$129
This Kiwi.com deal was found by Cheapflights users on 3/3. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 3/122:06 pm
ONT
-
SLC
1 stop18h 09m
Frontier
Sun 3/1510:33 pm
SLC
-
ONT
1 stop10h 33m
Frontier
Deal found 3/3$132
This Kiwi.com deal was found by Cheapflights users on 3/2. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/163:30 pm
ONT
-
SLC
1 stop16h 40m
Frontier
Fri 3/2010:59 pm
SLC
-
ONT
1 stop15h 29m
Frontier
Deal found 3/2$133
This Frontier deal was found by Cheapflights users on 3/2. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/96:10 pm
ONT
-
SLC
Nonstop1h 50m
Frontier
Mon 4/131:00 pm
SLC
-
ONT
1 stop8h 07m
Frontier
Deal found 3/2$134
This Kiwi.com deal was found by Cheapflights users on 2/26. 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 stop24h 08m
Frontier
Tue 3/318:30 pm
SLC
-
ONT
1 stop20h 27m
Frontier
Deal found 2/26$138
This Frontier deal was found by Cheapflights users on 3/3. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/252:23 pm
ONT
-
SLC
1 stop4h 06m
Frontier
Thu 4/28:40 pm
SLC
-
ONT
Nonstop1h 52m
Frontier
Deal found 3/3$139
This Kiwi.com deal was found by Cheapflights users on 3/3. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/2112:59 am
ONT
-
SLC
1 stop9h 25m
Frontier
Sun 4/2610:48 pm
SLC
-
ONT
1 stop10h 36m
Frontier
Deal found 3/3$140
This CheapOair deal was found by Cheapflights users on 3/2. 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.
Fri 5/19:00 am
ONT
-
SLC
Nonstop1h 52m
Frontier
Sun 5/31:44 pm
SLC
-
ONT
1 stop19h 20m
Frontier
Deal found 3/2$145
This Super.com deal was found by Cheapflights users on 3/2. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/26:10 pm
ONT
-
SLC
Nonstop1h 50m
Frontier
Tue 4/77:36 pm
SLC
-
ONT
Nonstop1h 55m
Frontier
Deal found 3/2$146

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 March 3, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$125
(Kiwi.com)

One-way from

$54
(Frontier)

Popular in

January

Cheapest in

August

Average price

$195

Good round-trip deal

$275 or less

Good one-way deal

$150 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. 9% potential increase in price ($21 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease ($4 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in March 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 March 3, 2026.
Use the filters below to find and compare flights from Ontario to Utah that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

OntarioSaint George

ONT - SGU

ONTSGU

Ontario

Thu 7/30

1:00 pm-6:35 pm

1 stop4h 35m

Saint George

Sun 8/2

5:50 am-9:01 am

1 stop4h 11m

$238

OntarioSalt Lake City

ONT - SLC

ONTSLC

Ontario

Wed 4/29

3:45 pm-9:10 pm

1 stop4h 25m

Salt Lake City

Sat 5/30

6:20 am-12:20 pm

2 stops7h 00m

$279

OntarioSalt Lake City

ONT - SLC

ONTSLC

Ontario

Mon 3/30

4:25 pm-10:40 pm

1 stop5h 15m

Salt Lake City

Sun 4/5

5:30 pm-10:25 pm

1 stop5h 55m

$288

OntarioSalt Lake City

ONT - SLC

ONTSLC

Ontario

Thu 4/30

5:05 pm-12:25 am

1 stop6h 20m

Salt Lake City

Sun 5/3

5:20 am-11:50 am

1 stop7h 30m

$298

OntarioSalt Lake City

ONT - SLC

ONTSLC

Ontario

Sat 4/25

6:00 am-8:50 am

Nonstop1h 50m

Salt Lake City

Wed 6/3

8:02 am-8:53 am

Nonstop1h 51m

$299

OntarioSalt Lake City

ONT - SLC

ONTSLC

Ontario

Thu 4/9

5:09 pm-8:00 pm

Nonstop1h 51m

Salt Lake City

Mon 4/13

11:25 am-12:14 pm

Nonstop1h 49m

$300

OntarioCedar City

ONT - CDC

ONTCDC

Ontario

Fri 4/17

1:29 pm-6:15 pm

1 stop3h 46m

Cedar City

Mon 4/20

6:50 pm-11:44 pm

1 stop5h 54m

$312

OntarioSalt Lake City

ONT - SLC

ONTSLC

Ontario

Wed 4/29

6:00 am-8:50 am

Nonstop1h 50m

Salt Lake City

Sat 5/2

3:30 pm-4:25 pm

Nonstop1h 55m

$319

OntarioCedar City

ONT - CDC

ONTCDC

Ontario

Fri 6/5

1:29 pm-6:15 pm

1 stop3h 46m

Cedar City

Mon 6/8

9:31 am-12:29 pm

1 stop3h 58m

$322

OntarioCedar City

ONT - CDC

ONTCDC

Ontario

Fri 3/20

1:20 pm-6:15 pm

1 stop3h 55m

Cedar City

Mon 3/23

11:30 am-4:28 pm

1 stop5h 58m

$332

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/1

Showing 1-10 of 48 resultsSorted by cheapest first
1
2
3
...
5

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 March 3, 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.

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 March 3, 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
4,301 reviews

Comfort

8.0

Crew

8.6

Food

7.0

Overall

8.0

Boarding

8.1

Entertainment

7.5

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
4,301 reviews
Southwest
8.0
Very good
4,301 reviews

Comfort

8.0

Crew

8.6

Food

7.0

Overall

8.0

Boarding

8.1

Entertainment

7.5

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
8,242 reviews
Southwest
8.0
Very good
4,301 reviews

Comfort

8.0

Crew

8.6

Food

7.0

Overall

8.0

Boarding

8.1

Entertainment

7.5

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
7.1
Good
11,375 reviews
Southwest
8.0
Very good
4,301 reviews

Comfort

8.0

Crew

8.6

Food

7.0

Overall

8.0

Boarding

8.1

Entertainment

7.5

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
3,041 reviews
Southwest
8.0
Very good
4,301 reviews

Comfort

8.0

Crew

8.6

Food

7.0

Overall

8.0

Boarding

8.1

Entertainment

7.5

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 25m. Delta provides one of the quickest options available for as low as $279. 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 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 Korean Air (100%), Volaris (100%) or Frontier (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 $925, our data indicates the cheapest price to be $85. The most popular route (Ontario - Salt Lake City), is priced around $148.

  • 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 March 3, 2026.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$77Average$179FlexibilityNo cancel feeOn-time62%
American AirlinesCheapest$197Average$320FlexibilityNo cancel feeOn-time71%
DeltaCheapest$199Average$311FlexibilityNo cancel feeOn-timeN/A
SouthwestCheapest$202Average$330FlexibilityNo cancel feeOn-time63%

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