Salt Lake City

$72+ 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 9/25. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — SLC
Aug 19 — Aug 261
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1. Tell us where you want to go

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Cheapflights Tip: The best prices from Ontario to Salt Lake City are usually found in January or September, booked 90 days in advance, depart on a Thursday or Saturday and return on a Sunday

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 August 14, 2025.

Round-trip from

$186
(Frontier)

One-way from

$72
(CheapOair)

Popular in

April

Cheapest in

January

Average price

$239

Good round-trip deal

$242 or less

Good one-way deal

$179 or less
From Ontario to Salt Lake City
One-way flight from Ontario to Salt Lake City
Highest demand for flights based on searches. 10% potential increase in price ($32 potential increase over avg. RT price).
Cheapest flight prices on average. 1% potential price decrease ($4 potential savings vs. average RT price).
Average for round-trip flights in August 2025
Price to beat on a round-trip flight from Ontario to Salt Lake City.
Price to beat on a one-way flight from Ontario to Salt Lake City.

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 August 14, 2025.

This CheapOair deal was found by Cheapflights users on 8/14. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/1812:59 amONT - SLC
1 stop20h 25mFrontier
Thu 8/2111:47 amSLC - ONT
1 stop12h 53mFrontier
Deal found 8/14$183
This Booking.com deal was found by Cheapflights users on 8/14. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/1912:59 amONT - SLC
1 stop9h 53mFrontier
Thu 8/2111:47 amSLC - ONT
1 stop12h 53mFrontier
Deal found 8/14$184
This Frontier deal was found by Cheapflights users on 8/14. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/510:40 pmONT - SLC
2 stops13h 32mFrontier
Sun 9/79:45 pmSLC - ONT
1 stop10h 38mFrontier
Deal found 8/14$186
This CheapOair deal was found by Cheapflights users on 8/11. 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.
Mon 9/88:59 pmONT - SLC
1 stop14h 47mFrontier
Mon 9/159:45 pmSLC - ONT
1 stop23h 09mFrontier
Deal found 8/11$187
This FlightHub deal was found by Cheapflights users on 8/14. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/208:00 amONT - SLC
1 stop25h 52mFrontier
Sun 8/2411:47 amSLC - ONT
1 stop12h 53mFrontier
Deal found 8/14$188
This Mytrip deal was found by Cheapflights users on 8/12. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/2412:59 amONT - SLC
1 stop5h 33mFrontier
Mon 8/2511:47 amSLC - ONT
1 stop12h 53mFrontier
Deal found 8/12$189
This CheapOair deal was found by Cheapflights users on 8/12. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/1512:59 amONT - SLC
1 stop15h 39mFrontier
Wed 8/2012:52 pmSLC - ONT
1 stop11h 58mFrontier
Deal found 8/12$190
This Frontier deal was found by Cheapflights users on 8/13. 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 8/286:00 amONT - SLC
1 stop3h 52mFrontier
Sat 9/69:58 pmSLC - ONT
2 stops21h 17mFrontier
Deal found 8/13$191
This CheapOair deal was found by Cheapflights users on 8/12. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/185:21 pmONT - SLC
1 stop17h 31mFrontier
Mon 8/2511:47 amSLC - ONT
1 stop12h 53mFrontier
Deal found 8/12$192
This Frontier deal was found by Cheapflights users on 8/13. 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.
Sun 8/249:41 pmONT - SLC
2 stops12h 11mFrontier
Tue 9/212:52 pmSLC - ONT
1 stop11h 58mFrontier
Deal found 8/13$193
This Booking.com deal was found by Cheapflights users on 8/12. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/112:59 amONT - SLC
1 stop9h 53mFrontier
Fri 9/59:45 pmSLC - ONT
1 stop23h 09mFrontier
Deal found 8/12$194
This Frontier deal was found by Cheapflights users on 8/14. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/216:00 amONT - SLC
1 stop3h 52mFrontier
Tue 8/268:00 amSLC - ONT
2 stops9h 18mFrontier
Deal found 8/14$195

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 August 14, 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 11/6

12:59 am-12:47 pm

1 stop10h 48m

Salt Lake City

Sun 11/9

9:28 am-8:54 pm

2 stops12h 26m

$186

OntarioSalt Lake City

ONT - SLC

ONTSLC

Ontario

Sun 11/9

10:43 pm-7:32 am

2 stops7h 49m

Salt Lake City

Wed 11/12

5:34 pm-8:42 pm

1 stop4h 08m

$186

OntarioSalt Lake City

ONT - SLC

ONTSLC

Ontario

Fri 10/31

10:40 pm-4:39 pm

2 stops16h 59m

Salt Lake City

Sun 11/2

4:50 pm-11:50 pm

1 stop8h 00m

$186

OntarioSalt Lake City

ONT - SLC

ONTSLC

Ontario

Thu 9/18

9:16 am-7:28 pm

1 stop9h 12m

Salt Lake City

Mon 9/22

6:45 am-8:56 pm

2 stops15h 11m

$186

OntarioSalt Lake City

ONT - SLC

ONTSLC

Ontario

Thu 9/11

9:16 am-7:28 pm

1 stop9h 12m

Salt Lake City

Wed 9/17

1:42 pm-8:26 am

2 stops19h 44m

$186

OntarioSalt Lake City

ONT - SLC

ONTSLC

Ontario

Thu 10/30

10:10 am-6:39 pm

1 stop7h 29m

Salt Lake City

Tue 11/4

8:00 am-8:42 pm

2 stops13h 42m

$186

OntarioSalt Lake City

ONT - SLC

ONTSLC

Ontario

Mon 8/25

6:00 am-10:52 am

1 stop3h 52m

Salt Lake City

Wed 9/3

12:52 pm-8:26 am

2 stops20h 34m

$186

OntarioSalt Lake City

ONT - SLC

ONTSLC

Ontario

Fri 9/5

4:08 pm-12:14 am

1 stop7h 06m

Salt Lake City

Sun 9/7

8:40 pm-7:23 am

2 stops11h 43m

$186

OntarioSalt Lake City

ONT - SLC

ONTSLC

Ontario

Wed 9/3

12:59 am-11:15 am

1 stop9h 16m

Salt Lake City

Sun 9/7

8:23 pm-7:17 am

2 stops11h 54m

$186

OntarioSalt Lake City

ONT - SLC

ONTSLC

Ontario

Sat 11/8

8:00 am-10:19 pm

2 stops13h 19m

Salt Lake City

Thu 11/13

9:28 am-12:51 pm

1 stop4h 23m

$186

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/14

Showing 1-10 of 23 results
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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.

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

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 August 8, 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 90 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, October is the cheapest month in which you can book a flight from Ontario to Salt Lake City (average of $277). Flying from Ontario to Salt Lake City in March is currently the most expensive (average of $417). 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 August 14, 2025.

Unlike in the morning, when flights are generally more expensive, you can save up to 9% on flights from Ontario to Salt Lake City by exploring options for tickets in the afternoon.

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 August 10, 2025.

Travelers seeking maximum savings on their Ontario to Salt Lake City flight should consider departing on Tuesday 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.

Weekly flight availability from Ontario to Salt Lake City

Explore weekly flight availability from Ontario to Salt Lake City. 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 August 14, 2025.

The most flights from ONT to SLC are scheduled on a Wednesday (12 on average). You will have fewer flight options on Sunday, which is when the least amount of flights are scheduled (7 on average).

What’s the top layover airport for flights from Ontario to Salt Lake City?

Share of 1-stop round-trip flights from Ontario to Salt Lake City chosen by Cheapflights users in the past 12 months, using the same layover each way.

Denver (DEN) – chosen by Cheapflights users on 40% of 1-stop itineraries from Ontario to Salt Lake City on Cheapflights.

What’s the cheapest layover airport for flights from Ontario to Salt Lake City?

Average round-trip fare for 1-stop flights from Ontario to Salt Lake City, chosen by Cheapflights users in the past 12 months, with the same layover each way.

Las Vegas (LAS) is the most affordable 1-stop option, with an average round-trip price of $238.

What’s the fastest layover option from Ontario to Salt Lake City?

Shortest average travel time for 1-stop one-way flights from Ontario to Salt Lake City, based on itineraries clicked by Cheapflights users over the past 12 months, grouped by layover airport.

Flights via Phoenix (PHX) have the shortest average one-way travel time for 1-stop routes: 3h 45m.

Which airport typically offers the quickest layover for flights from Ontario to Salt Lake City?

Average layover duration for 1-stop one-way flights from Ontario to Salt Lake City, chosen by Cheapflights users in the last 12 months, grouped by stopover airport.

Flights via Phoenix (PHX) offer the fastest connection on this route, with an average layover time of 0h 53m.

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 August 14, 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.

Boarding

8.1

Comfort

8.0

Entertainment

7.5

Food

7.0

Overall

8.0

Crew

8.6

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.

Boarding

8.1

Comfort

8.0

Entertainment

7.5

Food

7.0

Overall

8.0

Crew

8.6

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.
8.0
Very good

Boarding

8.1

Comfort

8.0

Entertainment

7.5

Food

7.0

Overall

8.0

Crew

8.6

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.

Boarding

8.1

Comfort

8.0

Entertainment

7.5

Food

7.0

Overall

8.0

Crew

8.6

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.

Boarding

8.1

Comfort

8.0

Entertainment

7.5

Food

7.0

Overall

8.0

Crew

8.6

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 9 daily flights to Salt Lake City from 4 different airlines. 1h 43m 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?

  • What are the cheapest airlines flying from Ontario to Salt Lake City round-trip?

    According to our current data, Frontier ($63), Delta ($188), and Southwest ($202) offers the cheapest pricing from Ontario to Salt Lake City. Users have found that Frontier is 76% cheaper than the other options available to this destination.

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

    Consider Air France (99%), Aeromexico (98%) or Korean Air (94%) 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 $507 for a flight from Ontario to Salt Lake City. The cheapest flight overall is $129 while the most popular route, (Ontario - Salt Lake City) is currently priced at $143.

  • 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, October is the cheapest month in which you can book a flight from Ontario to Salt Lake City (average of $277). Flying from Ontario to Salt Lake City in March is currently the most expensive (average of $417). 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
Midvale
Lehi
Layton
Farmington
Logan
West Valley City
Evanston
West Jordan
South Jordan
Draper
Sandy

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Alternative routes for Ontario to Salt Lake City

See prices for flight routes from nearby airports that may be better suited for you.

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 August 14, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$63Average$156FlexibilityNo cancel feeOn-time62%
DeltaCheapest$188Average$307FlexibilityNo cancel feeOn-timeN/A
SouthwestCheapest$202Average$309FlexibilityNo cancel feeOn-time63%
American AirlinesCheapest$226Average$322FlexibilityNo cancel feeOn-time71%

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