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$71+ Cheap flights from Salt Lake City to Ontario (SLC - ONT)

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 11/2. Fares are subject to change and may not be available on all flights or dates of travel.
SLC — ONT
Oct 17 — Oct 241
Fri 10/17
Fri 10/24
1 adult, Economy
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Cheapflights Tip: The best prices from Salt Lake City to Ontario are usually found in January or June, booked 27 days in advance, depart on a Thursday or Sunday and return on a Thursday

Cheap flight deals from Salt Lake City to Ontario

Discover tips and strategies to find the most affordable flight options for your journey from Salt Lake City (SLC) to Ontario (ONT). 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 September 17, 2025.

Round-trip from

$143
(CheapOair)

One-way from

$71
(Kiwi.com)

Popular in

November

Cheapest in

January

Average price

$242

Good round-trip deal

$199 or less

Good one-way deal

$248 or less
From Salt Lake City to Ontario
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One-way flight from Salt Lake City to Ontario
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Highest demand for flights based on searches. 15% potential increase in price ($48 potential increase over avg. RT price).
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Cheapest flight prices on average. 5% potential price decrease ($14 potential savings vs. average RT price).
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Average for round-trip flights in September 2025
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Price to beat on a round-trip flight from Salt Lake City to Ontario.
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Price to beat on a one-way flight from Salt Lake City to Ontario.
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Find flight deals from Salt Lake City to Ontario

Cheapest flights from Salt Lake City to Ontario
Explore the most affordable flight options available from Salt Lake City to Ontario. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 17, 2025.

This CheapOair deal was found by Cheapflights users on 9/15. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/29:45 pmSLC - ONT
1 stop23h 09mFrontier
Mon 10/62:45 pmONT - SLC
1 stop3h 43mFrontier
Deal found 9/15$143
This Frontier deal was found by Cheapflights users on 9/15. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/224:02 pmSLC - ONT
1 stop4h 52mFrontier
Thu 9/259:16 amONT - SLC
1 stop5h 04mFrontier
Deal found 9/15$144
This Gotogate deal was found by Cheapflights users on 9/16. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/251:33 pmSLC - ONT
1 stop8h 23mFrontier
Mon 9/298:59 pmONT - SLC
1 stop14h 47mFrontier
Deal found 9/16$145
This CheapOair deal was found by Cheapflights users on 9/15. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/202:07 pmSLC - ONT
1 stop8h 49mFrontier
Sat 9/278:00 amONT - SLC
1 stop4h 12mFrontier
Deal found 9/15$150
This CheapOair deal was found by Cheapflights users on 9/15. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/199:45 pmSLC - ONT
1 stop23h 09mFrontier
Sun 9/217:30 pmONT - SLC
1 stop14h 12mFrontier
Deal found 9/15$156
This CheapOair deal was found by Cheapflights users on 9/16. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/184:10 pmSLC - ONT
1 stop16h 07mFrontier
Wed 10/226:53 amONT - SLC
1 stop14h 26mFrontier
Deal found 9/16$157
This CheapOair deal was found by Cheapflights users on 9/16. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/268:44 pmSLC - ONT
1 stop26h 12mFrontier
Sun 9/288:59 pmONT - SLC
1 stop9h 33mFrontier
Deal found 9/16$158
This CheapOair deal was found by Cheapflights users on 9/16. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/158:32 amSLC - ONT
1 stop16h 18mFrontier
Tue 10/217:04 amONT - SLC
1 stop14h 15mFrontier
Deal found 9/16$159
This CheapOair deal was found by Cheapflights users on 9/14. 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.
Wed 10/158:32 amSLC - ONT
1 stop26h 03mFrontier
Sun 10/1910:40 pmONT - SLC
1 stop21h 30mFrontier
Deal found 9/14$160
This CheapOair deal was found by Cheapflights users on 9/15. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/178:45 amSLC - ONT
1 stop23h 38mFrontier
Fri 9/1910:28 pmONT - SLC
1 stop13h 44mFrontier
Deal found 9/15$164
This CheapOair deal was found by Cheapflights users on 9/15. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/186:45 amSLC - ONT
1 stop26h 08mFrontier
Sun 9/213:43 pmONT - SLC
1 stop14h 49mFrontier
Deal found 9/15$166
This CheapOair deal was found by Cheapflights users on 9/16. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/176:05 pmSLC - ONT
1 stop15h 21mFrontier
Thu 9/188:59 pmONT - SLC
1 stop9h 33mFrontier
Deal found 9/16$172

Cheapflights Fare Finder

 
Customize your flight search to find flights from Salt Lake City to Ontario 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 September 17, 2025.
Use the filters below to find and compare flights from Salt Lake City to Ontario that are best for you.

Fly from

Salt Lake City

Fly to

Ontario

Route

Depart

Return

Price

Salt Lake CityOntario

SLC - ONT

SLCONT

Salt Lake City

Tue 10/14

5:34 pm-8:42 pm

1 stop4h 08m

Ontario

Sat 11/1

6:53 am-8:32 am

1 stop24h 39m

$143

Salt Lake CityOntario

SLC - ONT

SLCONT

Salt Lake City

Fri 10/3

9:45 pm-7:54 pm

1 stop23h 09m

Ontario

Mon 10/6

10:28 pm-4:39 pm

1 stop17h 11m

$143

Salt Lake CityOntario

SLC - ONT

SLCONT

Salt Lake City

Thu 10/23

7:28 pm-9:55 pm

1 stop3h 27m

Ontario

Sat 10/25

1:37 pm-6:43 pm

1 stop4h 06m

$143

Salt Lake CityOntario

SLC - ONT

SLCONT

Salt Lake City

Sat 10/25

11:18 am-8:42 pm

1 stop10h 24m

Ontario

Sun 10/26

6:53 am-7:32 am

1 stop23h 39m

$143

Salt Lake CityOntario

SLC - ONT

SLCONT

Salt Lake City

Thu 10/16

3:58 pm-12:07 am

1 stop9h 09m

Ontario

Mon 10/20

5:15 pm-4:39 pm

1 stop22h 24m

$144

Salt Lake CityOntario

SLC - ONT

SLCONT

Salt Lake City

Sat 9/20

2:07 pm-9:56 pm

1 stop8h 49m

Ontario

Tue 9/30

8:00 am-5:15 pm

1 stop8h 15m

$150

Salt Lake CityOntario

SLC - ONT

SLCONT

Salt Lake City

Sat 9/20

2:07 pm-9:56 pm

1 stop8h 49m

Ontario

Tue 9/23

8:59 pm-10:26 pm

1 stop24h 27m

$150

Salt Lake CityOntario

SLC - ONT

SLCONT

Salt Lake City

Sat 9/20

2:07 pm-9:56 pm

1 stop8h 49m

Ontario

Mon 9/22

6:00 am-10:42 am

1 stop3h 42m

$156

Salt Lake CityOntario

SLC - ONT

SLCONT

Salt Lake City

Thu 10/2

2:27 pm-8:56 pm

1 stop7h 29m

Ontario

Mon 10/6

10:28 pm-11:35 am

2 stops12h 07m

$194

Salt Lake CityOntario

SLC - ONT

SLCONT

Salt Lake City

Sat 10/4

2:07 pm-9:56 pm

1 stop8h 49m

Ontario

Mon 10/6

10:28 pm-11:35 am

2 stops12h 07m

$202

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/15

Showing 1-10 of 23 results
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The best insider tips for Salt Lake City to Ontario 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 Salt Lake City to Ontario trip
Airports
SLC

SLC's expanded security checkpoint ensures a smooth departure. Enjoy local dining options like craft beer and tacos at The Plaza post-security.

Read more about SLCby Ramsey Qubein
ONT

For arrivals at ONT, rental cars are convenient with ten major companies on-site, offering quick access to I-10 for easy travel.

Read more about ONTby Bill Fink
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 Salt Lake City to Ontario

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

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

Use this chart to determine the optimal time to book a round-trip flight from Salt Lake City to Ontario. Price data was last updated on September 12, 2025.

The price you pay for your flight from Salt Lake City to Ontario may vary depending on when you book. For the best chance of a lower fare, look to book 27 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 Salt Lake City to Ontario?

Currently, August is the cheapest month in which you can book a flight from Salt Lake City to Ontario (average of $246). Flying from Salt Lake City to Ontario in March is currently the most expensive (average of $327). 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 SLC to ONT?

Find hourly flight availability from Salt Lake City to Ontario. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated September 17, 2025.

It’s typically best to fly out from Salt Lake City to Ontario at noon. Doing so could potentially save you 68% on the flight price compared to flying in the evening, which is usually more expensive.

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

Use this chart to determine the cheapest time to fly round-trip from Salt Lake City to Ontario. Price data was last updated on September 14, 2025.

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

Reviews of airlines servicing Ontario

Get insights into the airlines that provide service to Ontario. 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 Ontario. Reviews last updated September 17, 2025.
Get a feel of what it's like to fly with Southwest, Delta, and American Airlines from Salt Lake City to Ontario by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.0
Very good
4,242 reviews

Entertainment

7.5

Food

7.0

Overall

8.0

Comfort

8.0

Crew

8.6

Boarding

8.1

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

Entertainment

7.5

Food

7.0

Overall

8.0

Comfort

8.0

Crew

8.6

Boarding

8.1

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
8.0
Very good
7,961 reviews
Southwest
8.0
Very good
4,242 reviews

Entertainment

7.5

Food

7.0

Overall

8.0

Comfort

8.0

Crew

8.6

Boarding

8.1

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
10,000 reviews
Southwest
8.0
Very good
4,242 reviews

Entertainment

7.5

Food

7.0

Overall

8.0

Comfort

8.0

Crew

8.6

Boarding

8.1

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
3,173 reviews
Southwest
8.0
Very good
4,242 reviews

Entertainment

7.5

Food

7.0

Overall

8.0

Comfort

8.0

Crew

8.6

Boarding

8.1

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 Salt Lake City to Ontario. 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 Salt Lake City to Ontario?

    Booking a flight from Salt Lake City (SLC) to Ontario (ONT) is your only option if you wish to fly from Salt Lake City to Ontario. On a typical day, there are 6 flights from Salt Lake City to Ontario, all of which are around 1h 44m for a nonstop flight. You can also purchase a plane ticket from 4 airlines when you book a flight from Salt Lake City to Ontario.

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

    The Salt Lake City to Ontario flight path was viewed by 3 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 Salt Lake City to Ontario?

    A quick flight from Salt Lake City to Ontario can take about 4h 08m. Frontier provides one of the quickest options available for as low as $143. Airlines will cover a distance of 557 mi.

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

    Frontier, at $70, was found to be the cheapest airline from Salt Lake City to Ontario.Alternate airlines to your destination round-trip include Delta and Southwest. Frontier is 73% cheaper than the average price of flights available within the next 90 days to this destination.

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

    Before booking your flight to Ontario from Salt Lake City, check out the most reliable airlines to get you to your destination on time: Air France (95%), SkyWest Airlines (94%), Delta( 94%).

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

    On average you can expect to pay $324 for a flight from Salt Lake City to Ontario. The cheapest flight overall is $148 while the most popular route, (Salt Lake City - Ontario) is currently priced at $143.

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

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

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

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

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

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

    Currently, August is the cheapest month in which you can book a flight from Salt Lake City to Ontario (average of $246). Flying from Salt Lake City to Ontario in March is currently the most expensive (average of $327). 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 Salt Lake City to Ontario

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Top 4 airlines flying from Salt Lake City to Ontario

Discover the top 4 airlines that operate flights from Salt Lake City to Ontario. 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 September 17, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$70Average$158FlexibilityNo cancel feeOn-time62%
DeltaCheapest$199Average$300FlexibilityNo cancel feeOn-timeN/A
SouthwestCheapest$214Average$292FlexibilityNo cancel feeOn-time63%
American AirlinesCheapest$216Average$388FlexibilityNo cancel feeOn-time71%

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