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$55+ Cheap flights from Ontario to Salt Lake City (ONT - SLC)

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 12/4. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — SLC
Nov 26 — Dec 31
Wed 11/26
Wed 12/3
1 adult, Economy
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Find cheap flights from Ontario to Salt Lake City with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheapflights Tip: The best prices from Ontario to Salt Lake City are usually found in January or August, booked 88 days in advance, depart on a Thursday or Saturday and return on a Thursday

Cheap flight deals from Ontario to Salt Lake City

Discover tips and strategies to find the most affordable flight options for your journey from Ontario (ONT) to Salt Lake City (SLC). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated October 27, 2025.

Most accurate provider

CheapOair
3 stars

Most trusted provider

CheapOair
3 stars

Round-trip from

$110
(CheapOair)

One-way from

$55
(CheapOair)

Popular in

April

Cheapest in

January

Average price

$298

Good round-trip deal

$281 or less

Good one-way deal

$179 or less
Provider with most accurate pricing for Ontario-Salt Lake City flight deals.
Search Deals
Provider most trusted by Cheapflights users for Ontario-Salt Lake City flights.
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From Ontario to Salt Lake City
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One-way flight from Ontario to Salt Lake City
Search Deals
Highest demand for flights based on searches. 6% potential increase in price ($20 potential increase over avg. RT price).
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Cheapest flight prices on average. 1% potential price decrease ($3 potential savings vs. average RT price).
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Average for round-trip flights in October 2025
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Price to beat on a round-trip flight from Ontario to Salt Lake City.
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Price to beat on a one-way flight from Ontario to Salt Lake City.
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Find flight deals from Ontario to Salt Lake City

Cheapest flights from Ontario to Salt Lake City
Explore the most affordable flight options available from Ontario to Salt Lake City. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 27, 2025.

This Frontier deal was found by Cheapflights users on 10/27. 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 11/1310:05 amONT - SLC
1 stop4h 37mFrontier
Mon 11/179:28 amSLC - ONT
1 stop4h 23mFrontier
Deal found 10/27$110
This Frontier deal was found by Cheapflights users on 10/27. 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 12/46:15 amONT - SLC
1 stop4h 26mFrontier
Mon 12/812:36 pmSLC - ONT
1 stop9h 41mFrontier
Deal found 10/27$111
This Priceline deal was found by Cheapflights users on 10/26. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/158:00 amONT - SLC
1 stop7h 39mFrontier
Tue 11/181:10 pmSLC - ONT
1 stop9h 17mFrontier
Deal found 10/26$130
This CheapOair deal was found by Cheapflights users on 10/26. 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 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 11/109:28 amSLC - ONT
1 stop13h 29mFrontier
Deal found 10/26$143
This Kiwi.com deal was found by Cheapflights users on 10/27. 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.
Fri 11/1410:42 pmONT - SLC
2 stops13h 37mFrontier
Sun 11/164:27 pmSLC - ONT
1 stop8h 13mFrontier
Deal found 10/27$154
This Kiwi.com deal was found by Cheapflights users on 10/26. 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 12/255:24 pmONT - SLC
2 stops13h 48mFrontier
Tue 12/309:07 pmSLC - ONT
1 stop27h 52mFrontier
Deal found 10/26$156
This CheapOair deal was found by Cheapflights users on 10/27. 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.
Sat 11/88:00 amONT - SLC
1 stop7h 39mFrontier
Tue 11/115:34 pmSLC - ONT
1 stop4h 08mFrontier
Deal found 10/27$163
This CheapOair deal was found by Cheapflights users on 10/26. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/97:17 amONT - SLC
1 stop8h 53mFrontier
Mon 11/109:28 amSLC - ONT
1 stop13h 29mFrontier
Deal found 10/26$169
This Kiwi.com deal was found by Cheapflights users on 10/25. 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.
Fri 12/53:20 pmONT - SLC
1 stop7h 47mFrontier
Fri 12/122:20 pmSLC - ONT
2 stops25h 05mFrontier
Deal found 10/25$175

Cheapflights Fare Finder

 
Customize your flight search to find flights from Ontario to Salt Lake City 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 27, 2025.
Use the filters below to find and compare flights from Ontario to Salt Lake City that are best for you.

Fly from

Ontario

Fly to

Salt Lake City

Route

Depart

Return

Price

OntarioSalt Lake City

ONT - SLC

ONTSLC

Ontario

Thu 1/29

6:30 am-1:43 pm

1 stop6h 13m

Salt Lake City

Mon 2/2

2:38 pm-5:02 pm

1 stop3h 24m

$250

OntarioSalt Lake City

ONT - SLC

ONTSLC

Ontario

Sat 12/13

4:49 pm-7:45 pm

Nonstop1h 56m

Salt Lake City

Sun 12/21

10:55 pm-11:54 pm

Nonstop1h 59m

$259

OntarioSalt Lake City

ONT - SLC

ONTSLC

Ontario

Thu 12/25

1:15 pm-4:09 pm

Nonstop1h 54m

Salt Lake City

Tue 12/30

10:55 pm-11:54 pm

Nonstop1h 59m

$259

OntarioSalt Lake City

ONT - SLC

ONTSLC

Ontario

Wed 12/17

1:29 pm-4:16 pm

Nonstop1h 47m

Salt Lake City

Sat 12/20

11:25 am-12:29 pm

Nonstop2h 04m

$259

OntarioSalt Lake City

ONT - SLC

ONTSLC

Ontario

Wed 11/26

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

Sun 2/15

6:00 am-8:52 am

Nonstop1h 52m

Salt Lake City

Sat 2/21

8:55 pm-9:52 pm

Nonstop1h 57m

$259

OntarioSalt Lake City

ONT - SLC

ONTSLC

Ontario

Thu 12/11

1:29 pm-4:16 pm

Nonstop1h 47m

Salt Lake City

Mon 12/15

11:43 am-12:34 pm

Nonstop1h 51m

$260

OntarioSalt Lake City

ONT - SLC

ONTSLC

Ontario

Thu 12/18

6:00 am-8:51 am

Nonstop1h 51m

Salt Lake City

Sun 12/21

10:55 pm-11:54 pm

Nonstop1h 59m

$260

OntarioSalt Lake City

ONT - SLC

ONTSLC

Ontario

Sun 12/14

6:40 am-8:30 am

1 stop24h 50m

Salt Lake City

Sun 12/21

10:55 pm-11:54 pm

Nonstop1h 59m

$311

OntarioSalt Lake City

ONT - SLC

ONTSLC

Ontario

Tue 2/10

6:00 am-8:52 am

Nonstop1h 52m

Salt Lake City

Tue 2/17

10:55 pm-11:52 pm

Nonstop1h 57m

$328

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/25

Showing 1-10 of 22 results
1
2
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Compare providers for flights from Ontario to Salt Lake City

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Ontario to Salt Lake City in October.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy2 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*1 star
eDreamsPrice Accuracy3 starsTrust Score*3 stars
JustAirTicketPrice Accuracy-Trust Score*1 star
PricelinePrice Accuracy1 starTrust Score*3 stars
CheapOairPrice Accuracy3 starsTrust Score*3 stars
MytripPrice Accuracy3 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Ontario-Salt Lake City flights, users find the pricing of CheapOair to be most consistent on Cheapflights vs. CheapOair Users can find the same prices on Ontario-Salt Lake City flight deals on Cheapflights vs. CheapOair >95% of the time. Price accuracy is based on data collected from Ontario-Salt Lake City flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Ontario-Salt Lake City flights, Cheapflights users trust CheapOair the most. CheapOair has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Ontario-Salt Lake City flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Ontario to Salt Lake City

Have a flexible travel schedule? Discover the best time to fly to Salt Lake City 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 Salt Lake City

How far ahead should I book a flight from Ontario to Salt Lake City?

Use this chart to determine the optimal time to book a round-trip flight from Ontario to Salt Lake City. Price data was last updated on October 24, 2025.

The price you pay for your flight from Ontario to Salt Lake City may vary depending on when you book. For the best chance of a lower fare, look to book 88 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

What is the cheapest month to book a flight from Ontario to Salt Lake City?

Currently, May is the cheapest month in which you can book a flight from Ontario to Salt Lake City (average of $40). Flying from Ontario to Salt Lake City 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 SLC?

Find hourly flight availability from Ontario to Salt Lake City. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated October 27, 2025.

Unlike in the morning, when flights are generally more expensive, you can save up to 71% on flights from Ontario to Salt Lake City by exploring options for tickets in the evening.

What is the cheapest day to fly from Ontario to Salt Lake City?

Use this chart to determine the cheapest time to fly round-trip from Ontario to Salt Lake City. Price data was last updated on October 26, 2025.

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

The best insider tips for Ontario to Salt Lake City flights

Snippets provided in this section are AI-generated based on a summarization of Cheapflights-commissioned articles. The articles are presented as-is, for general informational purposes only, and may not be up-to-date. The opinions contained in the articles are original to the author and reflect their authentic experience, which may vary significantly from the experience of others.
Cheapflights partnered with top experts to bring you the best recommendations for your Ontario to Salt Lake City trip
Airports
ONT

ONT's TSA security is smoother and quicker than LAX, making it ideal for weekday business travelers. Plan ahead for a stress-free departure.

Read more about ONTby Bill Fink
SLC

Use the TRAX light rail for quick access to downtown Salt Lake City from SLC airport. It's efficient and convenient for arrivals.

Read more about SLCby Ramsey Qubein
Our travel experts
Bill Fink

Bill Fink

Expert on ONT

Bill Fink

Bill Fink

Bill is an award-winning travel writer with extensive credits covering airlines and the aviation industry for publications including AARP, AFAR, The Points Guy and Yahoo. Based in Portland, Oregon, Bill has traveled to more than 75 countries - and been late for his flight in most of them. He once achieved top-level frequent flier status for all of American, Delta and United Airlines during a single year.

Read more
Ramsey Qubein

Ramsey Qubein

Expert on SLC

Ramsey Qubein

Ramsey Qubein

An avid traveler and aviation expert who has visited 173 countries, all 50 states and seven continents, Ramsey Qubein flies nearly 400,000 miles a year. As a North Carolina-based freelance journalist for publications including Conde Nast Traveler, Forbes, USA Today and Bloomberg among others, he explores the latest trends in aviation, hospitality, cruises and business.

Read more

Reviews of airlines servicing Salt Lake City

Get insights into the airlines that provide service to Salt Lake City. 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 Salt Lake City. Reviews last updated October 27, 2025.
Read reviews from past customers who have flown Southwest, Delta, and American Airlines from Ontario to Salt Lake City. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.0
Very good
4,238 reviews

Crew

8.6

Boarding

8.1

Overall

8.0

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

Crew

8.6

Boarding

8.1

Overall

8.0

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
7,996 reviews
Southwest
8.0
Very good
4,238 reviews

Crew

8.6

Boarding

8.1

Overall

8.0

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
11,031 reviews
Southwest
8.0
Very good
4,238 reviews

Crew

8.6

Boarding

8.1

Overall

8.0

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
3,123 reviews
Southwest
8.0
Very good
4,238 reviews

Crew

8.6

Boarding

8.1

Overall

8.0

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 Salt Lake City. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airports do I use to fly from Ontario to Salt Lake City?

    Salt Lake City is the airport most travelers will use when flying to Salt Lake City from Ontario. Booking flights from Ontario (ONT) to Salt Lake City (SLC) should be relatively easy as there are 5 daily flights to Salt Lake City from 4 different airlines. 1h 45m is how long a flight from Ontario to Salt Lake City will take if you book a nonstop flight.

  • How popular is this Ontario to Salt Lake City flight route?

    This flight path from Ontario to Salt Lake City was viewed by 6 users in the past month. Keep an eye out for changes in search interest prior to high and low season.

  • How long is the flight from Ontario to Salt Lake City?

    Departing from Ontario to Salt Lake City will take you 1h 56m. The distance from Ontario to Salt Lake City 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 flying from Ontario to Salt Lake City round-trip?

    According to our current data, Frontier ($75), Delta ($200), and Southwest ($202) offers the cheapest pricing from Ontario to Salt Lake City. Users have found that Frontier is 73% cheaper than the other options available to this destination.

  • What are the most reliable airlines from Ontario to Salt Lake City?

    Consider Korean Air (97%), Aeromexico (97%) or Delta (96%) when booking your flight. These represent the most reliable airlines when flying from Ontario to Salt Lake City.

  • What are the cheapest flights from Ontario to Salt Lake City?

    On average you can expect to pay $677 for a flight from Ontario to Salt Lake City. The cheapest flight overall is $138 while the most popular route, (Ontario - Salt Lake City) is currently priced at $130.

  • Can I find deals for flights from Ontario to Salt Lake City that include hotel bookings?

    Yes. In addition to deals on Ontario to Salt Lake City flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Ontario to Salt Lake City?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Ontario to Salt Lake City.

  • Can I find deals for business class flights from Ontario to Salt Lake City?

    Yes. Cheapflights offers flight deals from Ontario to Salt Lake City 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 Salt Lake City?

    Currently, May is the cheapest month in which you can book a flight from Ontario to Salt Lake City (average of $40). Flying from Ontario to Salt Lake City 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

Traveling to a place near Salt Lake City?

Book flights to Salt Lake City if you plan to visit one of these locations
Bountiful
Lehi
Farmington
Midvale
Logan
West Valley City
Evanston
West Jordan
South Jordan
Layton
Draper
Alta
Sandy

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Top 4 airlines flying from Ontario to Salt Lake City

Discover the top 4 airlines that operate flights from Ontario to Salt Lake City. 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 27, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$75Average$176FlexibilityNo cancel feeOn-time62%
DeltaCheapest$200Average$309FlexibilityNo cancel feeOn-timeN/A
SouthwestCheapest$202Average$318FlexibilityNo cancel feeOn-time63%
American AirlinesCheapest$236Average$306FlexibilityNo cancel feeOn-time71%

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