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$50+ 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 10/29. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — SLC
Nov 19 — Nov 261
Wed 11/19
Wed 11/26
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 October 20, 2025.

This Kiwi.com deal was found by Cheapflights users on 10/18. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/112:05 pmONT - SLC
1 stop9h 14mFrontier
Tue 11/41:10 pmSLC - ONT
1 stop9h 17mFrontier
Deal found 10/18$117
This Kiwi.com deal was found by Cheapflights users on 10/19. 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.
Wed 11/128:00 amONT - SLC
1 stop7h 39mFrontier
Mon 11/178:10 pmSLC - ONT
1 stop26h 17mFrontier
Deal found 10/19$126
This Kiwi.com deal was found by Cheapflights users on 10/18. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/812:05 pmONT - SLC
1 stop9h 14mFrontier
Thu 11/134:27 pmSLC - ONT
1 stop8h 13mFrontier
Deal found 10/18$127
This Kiwi.com deal was found by Cheapflights users on 10/19. 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.
Mon 10/275:15 pmONT - SLC
2 stops17h 25mFrontier
Mon 11/310:20 pmSLC - ONT
1 stop23h 22mFrontier
Deal found 10/19$134
This CheapOair deal was found by Cheapflights users on 10/19. 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.
Fri 11/710:43 pmONT - SLC
1 stop11h 05mFrontier
Mon 11/108:10 pmSLC - ONT
1 stop26h 19mFrontier
Deal found 10/19$144
This CheapOair deal was found by Cheapflights users on 10/19. 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.
Fri 10/248:34 amONT - SLC
1 stop10h 30mFrontier
Sun 10/2610:05 pmSLC - ONT
1 stop12h 30mFrontier
Deal found 10/19$156
This Booking.com deal was found by Cheapflights users on 10/18. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/310:43 pmONT - SLC
1 stop16h 56mFrontier
Thu 11/64:27 pmSLC - ONT
1 stop8h 13mFrontier
Deal found 10/18$158
This Kiwi.com deal was found by Cheapflights users on 10/18. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/112:05 pmONT - SLC
1 stop19h 27mFrontier
Wed 12/245:20 pmSLC - ONT
1 stop4h 57mFrontier
Deal found 10/18$160
This Kiwi.com deal was found by Cheapflights users on 10/19. 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.
Mon 11/36:00 amONT - SLC
2 stops32h 28mFrontier
Fri 11/78:10 pmSLC - ONT
1 stop16h 00mFrontier
Deal found 10/19$161
This Flightnetwork deal was found by Cheapflights users on 10/18. 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 Flightnetwork is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/245:15 pmONT - SLC
1 stop16h 18mFrontier
Tue 10/285:34 pmSLC - ONT
1 stop4h 08mFrontier
Deal found 10/18$162
This Delta deal was found by Cheapflights users on 10/19. 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 12/36:00 amONT - SGU
1 stop3h 54mDelta
Wed 12/107:15 pmSGU - ONT
1 stop5h 43mDelta
Deal found 10/19$296
This Delta deal was found by Cheapflights users on 10/19. 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 12/36:00 amONT - SGU
1 stop3h 54mDelta
Tue 12/911:30 amSGU - ONT
2 stops12h 17mDelta
Deal found 10/19$302

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 October 20, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$117
(Kiwi.com)

One-way from

$50
(Kiwi.com)

Popular in

November

Cheapest in

September

Average price

$187

Good round-trip deal

$285 or less

Good one-way deal

$184 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. 11% potential increase in price ($26 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($7 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in October 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 October 20, 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

Fri 11/7

4:05 pm-12:01 am

1 stop6h 56m

Salt Lake City

Mon 11/10

8:10 pm-9:29 pm

1 stop26h 19m

$144

OntarioSalt Lake City

ONT - SLC

ONTSLC

Ontario

Sat 11/8

12:05 pm-10:19 pm

1 stop9h 14m

Salt Lake City

Wed 11/12

5:34 pm-8:42 pm

1 stop4h 08m

$144

OntarioSalt Lake City

ONT - SLC

ONTSLC

Ontario

Sat 1/24

11:53 am-2:46 pm

1 stop25h 53m

Salt Lake City

Mon 1/26

9:00 am-11:56 pm

1 stop15h 56m

$204

OntarioSalt Lake City

ONT - SLC

ONTSLC

Ontario

Fri 1/30

6:00 am-11:23 am

1 stop28h 23m

Salt Lake City

Mon 2/2

3:40 pm-11:56 pm

1 stop9h 16m

$204

OntarioSalt Lake City

ONT - SLC

ONTSLC

Ontario

Sat 2/21

7:00 am-5:38 pm

1 stop9h 38m

Salt Lake City

Mon 2/23

6:55 pm-10:08 am

1 stop16h 13m

$243

OntarioSalt Lake City

ONT - SLC

ONTSLC

Ontario

Fri 1/9

1:46 pm-5:43 pm

1 stop26h 57m

Salt Lake City

Mon 1/12

11:56 am-1:06 pm

1 stop26h 10m

$252

OntarioSalt Lake City

ONT - SLC

ONTSLC

Ontario

Wed 12/31

1:15 pm-4:09 pm

Nonstop1h 54m

Salt Lake City

Sun 1/4

10:55 pm-11:54 pm

Nonstop1h 59m

$259

OntarioSalt Lake City

ONT - SLC

ONTSLC

Ontario

Mon 11/24

6:00 am-8:53 am

Nonstop1h 53m

Salt Lake City

Fri 11/28

9:59 pm-10:50 pm

Nonstop1h 51m

$259

OntarioSalt Lake City

ONT - SLC

ONTSLC

Ontario

Wed 11/26

6:00 am-8:53 am

Nonstop1h 53m

Salt Lake City

Mon 12/1

10:59 pm-11:52 pm

Nonstop1h 53m

$259

OntarioSalt Lake City

ONT - SLC

ONTSLC

Ontario

Sat 1/24

6:00 am-8:52 am

Nonstop1h 52m

Salt Lake City

Mon 1/26

10:55 pm-11:52 pm

Nonstop1h 57m

$259

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/19

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 $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 October 20, 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 October 20, 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 (7 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 October 20, 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
4,238 reviews

Overall

8.0

Food

7.0

Boarding

8.1

Entertainment

7.5

Crew

8.6

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
4,238 reviews
Southwest
8.0
Very good
4,238 reviews

Overall

8.0

Food

7.0

Boarding

8.1

Entertainment

7.5

Crew

8.6

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
7,978 reviews
Southwest
8.0
Very good
4,238 reviews

Overall

8.0

Food

7.0

Boarding

8.1

Entertainment

7.5

Crew

8.6

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
11,023 reviews
Southwest
8.0
Very good
4,238 reviews

Overall

8.0

Food

7.0

Boarding

8.1

Entertainment

7.5

Crew

8.6

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
3,130 reviews
Southwest
8.0
Very good
4,238 reviews

Overall

8.0

Food

7.0

Boarding

8.1

Entertainment

7.5

Crew

8.6

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, 5 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 6h. Frontier provides one of the quickest options available for as low as $296. 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 $105 on Southwest. Other airlines that offer cheap prices include Alaska Airlines from $127 and Delta from $235 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 (97%), Aeromexico (97%) or Delta (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 $653, our data indicates the cheapest price to be $138. The most popular route (Ontario - Salt Lake City), is priced around $144.

  • 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 October 20, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$76Average$174FlexibilityNo cancel feeOn-time62%
American AirlinesCheapest$198Average$330FlexibilityNo cancel feeOn-time71%
DeltaCheapest$199Average$363FlexibilityNo cancel feeOn-timeN/A
SouthwestCheapest$202Average$318FlexibilityNo cancel feeOn-time63%

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