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$45+ 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 8/4. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — SLC
jul. 7 — jul. 141
lun. 7/7
lun. 7/14
1 adult, Economy
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Cheapflights Tip: The best prices from Ontario to Salt Lake City are usually found in July or August, booked 90 days in advance, depart on a Thursday or Friday 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 julio 2, 2025.

Round-trip from

$222
(FlightHub)

One-way from

$45
(Trip.com)

Popular in

April

Cheapest in

July

Average price

$138

Good round-trip deal

$282 or less

Good one-way deal

$199 or less
From Ontario to Salt Lake City
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One-way flight from Ontario to Salt Lake City
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Highest demand for flights based on searches. 21% potential increase in price ($64 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($7 potential savings vs. average RT price).
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Average for round-trip flights in July 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 julio 2, 2025.

This FlightHub deal was found by Cheapflights users on 6/30. 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.
sáb. 10/48:00 amONT - SLC
1 stop4h 12mFrontier
dom. 10/58:40 pmSLC - ONT
1 stop11h 37mFrontier
Deal found 6/30$222
This Southwest deal was found by Cheapflights users on 6/29. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 9/23:35 pmONT - SLC
2 stops5h 35mSouthwest
mié. 9/311:20 amSLC - ONT
1 stop7h 15mSouthwest
Deal found 6/29$230
This Delta deal was found by Cheapflights users on 6/30. 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.
vie. 8/89:44 amONT - SLC
Nonstop1h 49mDelta
lun. 8/1110:55 pmSLC - ONT
Nonstop1h 45mDelta
Deal found 6/30$239
This American Airlines deal was found by Cheapflights users on 7/2. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 9/16:17 amONT - SLC
1 stop4h 13mAmerican Airlines
mar. 9/912:12 pmSLC - ONT
1 stop7h 04mAmerican Airlines
Deal found 7/2$259

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 julio 2, 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

vie. 8/22

9:41 pm-12:39 pm

2 stops13h 58m

Salt Lake City

lun. 8/25

3:45 pm-11:50 pm

1 stop9h 05m

$224

OntarioSalt Lake City

ONT - SLC

ONTSLC

Ontario

mar. 9/2

3:35 pm-10:10 pm

2 stops5h 35m

Salt Lake City

mié. 9/3

11:20 am-5:35 pm

1 stop7h 15m

$230

OntarioSalt Lake City

ONT - SLC

ONTSLC

Ontario

vie. 8/8

1:15 pm-3:58 pm

Nonstop1h 43m

Salt Lake City

mar. 8/12

10:55 pm-11:40 pm

Nonstop1h 45m

$239

OntarioSalt Lake City

ONT - SLC

ONTSLC

Ontario

lun. 9/1

6:17 am-11:30 am

1 stop4h 13m

Salt Lake City

mar. 9/9

12:12 pm-6:16 pm

1 stop7h 04m

$259

OntarioSalt Lake City

ONT - SLC

ONTSLC

Ontario

lun. 8/4

9:47 pm-7:24 pm

1 stop20h 37m

$45

OntarioSalt Lake City

ONT - SLC

ONTSLC

Ontario

lun. 8/11

1:19 pm-7:32 pm

1 stop5h 13m

$113

OntarioSalt Lake City

ONT - SLC

ONTSLC

Ontario

mar. 8/5

2:55 pm-10:10 pm

2 stops6h 15m

$118

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/30

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

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 June 27, 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 julio 2, 2025.

Unlike in the morning, when flights are generally more expensive, you can save up to 18% 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 June 29, 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 julio 2, 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 (5 on average).

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 julio 2, 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
4,272 reviews

Crew

8.6

Overall

8.0

Food

7.0

Boarding

8.2

Entertainment

7.6

Comfort

8.0

Reviews

1 / 20
10.0
Excellent

Merlyn,Feb 2025

LAX - SMF

New Terminal is neat, lost of stores and places to catch a bite.
Southwest
8.0
Very good
4,272 reviews
Southwest
8.0
Very good
4,272 reviews

Crew

8.6

Overall

8.0

Food

7.0

Boarding

8.2

Entertainment

7.6

Comfort

8.0

Reviews

1 / 20
10.0
Excellent

Merlyn,Feb 2025

LAX - SMF

New Terminal is neat, lost of stores and places to catch a bite.
Delta
8.0
Very good
7,983 reviews
Southwest
8.0
Very good
4,272 reviews

Crew

8.6

Overall

8.0

Food

7.0

Boarding

8.2

Entertainment

7.6

Comfort

8.0

Reviews

1 / 20
10.0
Excellent

Merlyn,Feb 2025

LAX - SMF

New Terminal is neat, lost of stores and places to catch a bite.
American Airlines
7.2
Good
10,000 reviews
Southwest
8.0
Very good
4,272 reviews

Crew

8.6

Overall

8.0

Food

7.0

Boarding

8.2

Entertainment

7.6

Comfort

8.0

Reviews

1 / 20
10.0
Excellent

Merlyn,Feb 2025

LAX - SMF

New Terminal is neat, lost of stores and places to catch a bite.
Frontier
5.9
Fair
3,290 reviews
Southwest
8.0
Very good
4,272 reviews

Crew

8.6

Overall

8.0

Food

7.0

Boarding

8.2

Entertainment

7.6

Comfort

8.0

Reviews

1 / 20
10.0
Excellent

Merlyn,Feb 2025

LAX - SMF

New Terminal is neat, lost of stores and places to catch a bite.

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 42m 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 10 users in the past month. Keep an eye out for changes in search interest prior to high and low season.

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

    According to our current data, Frontier ($222), Southwest ($230), and Delta ($239) offers the cheapest pricing from Ontario to Salt Lake City. Users have found that Frontier is 5% cheaper than the other options available to this destination.

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

    Consider Air France (98%), SkyWest Airlines (97%) or Virgin Atlantic (95%) 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 $512 for a flight from Ontario to Salt Lake City. The cheapest flight overall is $133 while the most popular route, (Ontario - Salt Lake City) is currently priced at $120.

  • 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 Ontario?

Book flights to Ontario if you plan to visit one of these locations
Bountiful
Midvale
West Valley City
Lehi
Layton
Farmington
Logan
Evanston
West Jordan
Draper
South Jordan
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 julio 2, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$49Average$133FlexibilityNo cancel feeOn-time62%
DeltaCheapest$170Average$302FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$226Average$322FlexibilityNo cancel feeOn-time71%
SouthwestCheapest$236Average$315FlexibilityNo cancel feeOn-time63%

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