$77 Cheap Flights from Salt Lake City (SLC) to Ontario (ONT)

View $77 flight on Wed, Jul 30, 2025Opens in a new window

Popular airlines from Salt Lake City International Airport (SLC) to Los Angeles - Ontario Intl. Airport (ONT)

Find available prices by choosing your travel dates.

Cheap Flights from Salt Lake City to Ontario (SLC-ONT)

Prices were available within the past 7 days and start at $77 for one-way flights and $157 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Frontier Airlines
Wed, May 21 - Wed, May 28
SLC
Salt Lake City
ONT
Ontario
$157 Roundtrip, found 9 hours ago
$157
Roundtrip
found 9 hours ago
Select Frontier Airlines flight, departing Wed, May 21 from Salt Lake City to Ontario, returning Wed, May 28, priced at $157 found 9 hours ago
Frontier Airlines
Wed, May 21 - Wed, May 28
SLC
Salt Lake City
ONT
Ontario
$166 Roundtrip, found 9 hours ago
$166
Roundtrip
found 9 hours ago
Select Frontier Airlines flight, departing Wed, May 21 from Salt Lake City to Ontario, returning Wed, May 28, priced at $166 found 9 hours ago
Frontier Airlines
Sat, May 24 - Tue, May 27
SLC
Salt Lake City
ONT
Ontario
$168 Roundtrip, found 1 day ago
$168
Roundtrip
found 1 day ago
Select Frontier Airlines flight, departing Sat, May 24 from Salt Lake City to Ontario, returning Tue, May 27, priced at $168 found 1 day ago
Southwest Airlines
Tue, Jun 3 - Tue, Jun 10
SLC
Salt Lake City
ONT
Ontario
$168 Roundtrip, found 4 hours ago
$168
Roundtrip
found 4 hours ago
Select Southwest Airlines flight, departing Tue, Jun 3 from Salt Lake City to Ontario, returning Tue, Jun 10, priced at $168 found 4 hours ago
Frontier Airlines
Sat, May 17 - Tue, May 20
SLC
Salt Lake City
ONT
Ontario
$170 Roundtrip, just found
$170
Roundtrip
just found
Select Frontier Airlines flight, departing Sat, May 17 from Salt Lake City to Ontario, returning Tue, May 20, priced at $170 just found
Southwest Airlines
Tue, Jun 3 - Tue, Jun 10
SLC
Salt Lake City
ONT
Ontario
$173 Roundtrip, found 4 hours ago
$173
Roundtrip
found 4 hours ago
Select Southwest Airlines flight, departing Tue, Jun 3 from Salt Lake City to Ontario, returning Tue, Jun 10, priced at $173 found 4 hours ago
Southwest Airlines
Thu, May 22 - Tue, May 27
SLC
Salt Lake City
ONT
Ontario
$174 Roundtrip, just found
$174
Roundtrip
just found
Select Southwest Airlines flight, departing Thu, May 22 from Salt Lake City to Ontario, returning Tue, May 27, priced at $174 just found
United
Tue, Jun 3 - Tue, Jun 10
SLC
Salt Lake City
ONT
Ontario
$179 Roundtrip, found 4 hours ago
$179
Roundtrip
found 4 hours ago
Select United flight, departing Tue, Jun 3 from Salt Lake City to Ontario, returning Tue, Jun 10, priced at $179 found 4 hours ago
American Airlines
Tue, Jul 1 - Fri, Jul 4
SLC
Salt Lake City
ONT
Ontario
$203 Roundtrip, found 3 days ago
$203
Roundtrip
found 3 days ago
Select American Airlines flight, departing Tue, Jul 1 from Salt Lake City to Ontario, returning Fri, Jul 4, priced at $203 found 3 days ago
Delta
Tue, Jul 1 - Sun, Jul 6
SLC
Salt Lake City
ONT
Ontario
$239 Roundtrip, just found
$239
Roundtrip
just found
Select Delta flight, departing Tue, Jul 1 from Salt Lake City to Ontario, returning Sun, Jul 6, priced at $239 just found
Flights from Salt Lake City (SLC) to Ontario (ONT)
Origin airport
Salt Lake City Intl.
Destination airport
Los Angeles - Ontario Intl.
Airlines serving
Alaska Airlines, American Airlines, Delta, Frontier Airlines, JetBlue Airways, Southwest Airlines, United
Roundtrip price
$156
Distance
556 mi

Salt Lake City to Ontario Flights

The cheapest times to fly from Salt Lake City to Ontario

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from Salt Lake City to Ontario are during the month of May. You can find some of the cheapest flights from Salt Lake City to Ontario with Expedia's search tool and vast selection of airlines.

The best time to book a flight from Salt Lake City to Ontario

Sunday is one of the best days to book for cheap flights from Salt Lake City to Ontario: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

How to find cheap round-trip tickets from Salt Lake City to Ontario

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from Salt Lake City to Ontario in 2025. You can also book with separate airlines for your outbound and return journeys, from $77 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap Salt Lake City to Ontario flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

You could also save big by booking one of Expedia's vacation packages. Bundling together your Salt Lake City to Ontario airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

*Terms apply.

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

Frequently asked questions

How much does a flight from Salt Lake City Intl. Airport (SLC) to Los Angeles - Ontario Intl. Airport (ONT) cost?
You can book cheap return tickets starting at $194 from Salt Lake City Intl. Airport (SLC) to Los Angeles - Ontario Intl. Airport (ONT). This information is based on the cheapest price found on Expedia for this return journey departing within the next three months. This airfare is for a Delta and Frontier Airlines flight leaving SLC on May 20 2025 and touching down at ONT. The price was last updated on April 24 2025 and has not changed since.
What is the cheapest month to fly from SLC to ONT?
The cheapest flights from SLC to ONT are usually during off-peak season, when demand is lower. To save money, avoid flying during public holidays, school breaks and major local events.
Which airlines fly direct from Salt Lake City Intl. Airport (SLC) to Los Angeles - Ontario Intl. Airport (ONT)?
When setting off from Salt Lake City Intl. Airport (SLC), you can take a direct flight to Los Angeles - Ontario Intl. Airport (ONT) with Delta Air Lines.
What is the cheapest airline that flies from SLC to ONT?
Right now, the cheapest carrier operating one-way flights from SLC to ONT is Delta. You can jet off on this route from $149. This fare is based on the lowest price found on Expedia departing within the next three months. The flight takes off from SLC on July 18 2025. Prices were last updated on April 24 2025 and have not changed since.
How many flights per day from Salt Lake City Intl. Airport (SLC) to Los Angeles - Ontario Intl. Airport (ONT)?
Each day, an average of 3 nonstop flights operate from Salt Lake City Intl. Airport (SLC) to Los Angeles - Ontario Intl. Airport (ONT). Pick the departure time that works for you.
What are the most popular departure times for flights from Salt Lake City Intl. Airport (SLC) to Los Angeles - Ontario Intl. Airport (ONT)?
More passengers fly between SLC and ONT at 11 AM than at any other point in the day. Looking to skip the crowds? Consider flying outside peak hours and it’s possible you’ll save on your ticket as well.
What day of the week has the most flights from SLC to ONT?
Fly on a Thursday if you’re looking for the biggest selection of flights from Salt Lake City Intl. Airport (SLC) to Los Angeles - Ontario Intl. Airport (ONT).
What is the earliest flight from Salt Lake City Intl. Airport (SLC) to Los Angeles - Ontario Intl. Airport (ONT)?
Take the earliest flight at around 11:30AM UTC-7, heading out of Salt Lake City Intl. Airport (SLC). You’ll be in the air for around 1h 54m, coming in to land at Los Angeles - Ontario Intl. Airport (ONT) at approximately 12:24PM UTC-8.
How long does it take to fly from Salt Lake City Intl. Airport (SLC) to Los Angeles - Ontario Intl. Airport (ONT)?
It takes around 1 hour and 55 minutes to travel the 560 mi from SLC to ONT.
What airline has the least delays from SLC to ONT?
Consider booking with Aeromexico if you’d like to fly straight from Salt Lake City Intl. Airport (SLC) to Los Angeles - Ontario Intl. Airport (ONT) without any delays. This airline has the best track record for punctuality, with an on-time score of 96%. Want to be notified if anything changes? You can keep an eye on your flight status using the Expedia App.
What is the best time to fly from Salt Lake City Intl. Airport (SLC) to Los Angeles - Ontario Intl. Airport (ONT)?
To land at Los Angeles - Ontario Intl. Airport (ONT) on time, select a flight that takes off from Salt Lake City Intl. Airport (SLC) before 3 PM. The likelihood of cancellations is 22% higher, on average, for departures after this hour.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG’s global flight data platform.
What airports do you fly into for Ontario from Salt Lake City Intl. Airport (SLC)?
You can touch down at any of these Ontario airports after your direct flight from Salt Lake City Intl. Airport (SLC):

  • Los Angeles Intl. Airport (LAX)
  • John Wayne Airport (SNA)
  • Bob Hope Airport (BUR)
  • Los Angeles - Ontario Intl. Airport (ONT)
  • Long Beach Municipal Airport (LGB)

Is it cheaper to buy a plane ticket from Salt Lake City Intl. Airport (SLC) to Los Angeles - Ontario Intl. Airport (ONT) last-minute?
Booking your flight from SLC to ONT shortly before your journey is typically more expensive. But if you’re flexible with your schedule, you could snag a cheap last-minute fare.
Is it cheaper to book a SLC to ONT flight and hotel package?
Compared with arranging hotels and flights separately, booking a SLC to ONT flight and hotel package with Expedia could result in significant savings. Better yet, managing everything in one place will take the stress out of travel planning. Simply secure your flights and choose from our extensive range of hotels, then customize your trip with extras like tours, car rentals and activities.
Can I cancel or change the date of my flight from Salt Lake City Intl. Airport (SLC) to Los Angeles - Ontario Intl. Airport (ONT)?
Typically, you can cancel or modify your SLC to ONT flight. However, there may be additional fees, especially if your booking was made over 24 hours ago. Check your itinerary for the airline’s rules and fees on flight changes, or if you want more details, go to our Customer Service portal.

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*Available to One Key members.