HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Salt Lake City

$82+ 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 9/23. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — SLC
Jun 17 — Jun 241
Tue 6/17
Tue 6/24
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

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 July or August, booked 90 days in advance, depart on a Thursday or Tuesday 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 June 12, 2025.

Round-trip from

$202
(Cheapflightsfares)

One-way from

$82
(Trip.com)

Popular in

April

Cheapest in

July

Average price

$198

Good round-trip deal

$294 or less

Good one-way deal

$149 or less
From Ontario to Salt Lake City
Search Deals
One-way flight from Ontario to Salt Lake City
Search Deals
Highest demand for flights based on searches. 22% potential increase in price ($66 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($7 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in June 2025
Search Deals
Price to beat on a round-trip flight from Ontario to Salt Lake City.
Search Deals
Price to beat on a one-way flight from Ontario to Salt Lake City.
Search Deals

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 June 12, 2025.

This Cheapflightsfares deal was found by Cheapflights users on 6/12. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/16:00 amONT - SLC
1 stop3h 52mFrontier
Tue 9/95:26 pmSLC - ONT
1 stop4h 16mFrontier
Deal found 6/12$202
This Delta deal was found by Cheapflights users on 6/10. 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.
Sat 7/191:15 pmONT - SLC
Nonstop1h 43mDelta
Mon 7/288:00 amSLC - ONT
Nonstop1h 47mDelta
Deal found 6/10$239
This American Airlines deal was found by Cheapflights users on 6/10. 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.
Tue 6/174:50 pmONT - SLC
1 stop3h 47mAmerican Airlines
Wed 6/2512:32 pmSLC - ONT
1 stop4h 41mAmerican Airlines
Deal found 6/10$259
This Southwest deal was found by Cheapflights users on 6/10. 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.
Tue 7/86:45 amONT - SLC
1 stop8h 30mSouthwest
Tue 7/158:00 pmSLC - ONT
1 stop3h 50mSouthwest
Deal found 6/10$263
This United Airlines deal was found by Cheapflights users on 6/10. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 7/51:19 pmONT - SLC
1 stop6h 58mUnited Airlines
Wed 7/94:44 pmSLC - ONT
1 stop7h 08mUnited Airlines
Deal found 6/10$267
This Alaska Airlines deal was found by Cheapflights users on 6/10. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/236:00 amONT - SLC
1 stop7h 35mAlaska Airlines
Mon 8/253:35 pmSLC - ONT
2 stops9h 24mAlaska Airlines
Deal found 6/10$340

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 June 12, 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

Mon 9/1

6:00 am-10:52 am

1 stop3h 52m

Salt Lake City

Tue 9/9

5:26 pm-8:42 pm

1 stop4h 16m

$202

OntarioSalt Lake City

ONT - SLC

ONTSLC

Ontario

Sat 7/19

6:00 am-8:49 am

Nonstop1h 49m

Salt Lake City

Sun 7/27

8:00 am-8:47 am

Nonstop1h 47m

$239

OntarioSalt Lake City

ONT - SLC

ONTSLC

Ontario

Tue 7/8

6:45 am-4:15 pm

1 stop8h 30m

Salt Lake City

Tue 7/15

8:00 pm-10:50 pm

1 stop3h 50m

$263

OntarioSalt Lake City

ONT - SLC

ONTSLC

Ontario

Sat 7/5

1:19 pm-9:17 pm

1 stop6h 58m

Salt Lake City

Wed 7/9

4:44 pm-10:52 pm

1 stop7h 08m

$267

OntarioSalt Lake City

ONT - SLC

ONTSLC

Ontario

Sat 11/15

6:00 am-1:04 pm

1 stop6h 04m

Salt Lake City

Sat 11/22

3:20 pm-10:37 pm

1 stop8h 17m

$324

OntarioSalt Lake City

ONT - SLC

ONTSLC

Ontario

Sat 8/23

6:00 am-2:35 pm

1 stop7h 35m

Salt Lake City

Mon 8/25

3:35 pm-11:59 pm

2 stops9h 24m

$340

OntarioSalt Lake City

ONT - SLC

ONTSLC

Ontario

Tue 9/23

8:00 am-4:39 pm

1 stop7h 39m

$82

OntarioSalt Lake City

ONT - SLC

ONTSLC

Ontario

Wed 6/25

7:00 am-7:24 pm

1 stop11h 24m

$112

OntarioSalt Lake City

ONT - SLC

ONTSLC

Ontario

Mon 11/3

6:00 am-11:51 am

1 stop4h 51m

$113

OntarioSalt Lake City

ONT - SLC

ONTSLC

Ontario

Wed 8/13

3:35 pm-10:10 pm

2 stops5h 35m

$118

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/9

Showing 1-10 of 13 results
1
2

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 9, 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 June 12, 2025.

Unlike in the morning, when flights are generally more expensive, you can save up to 23% 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 8, 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 June 12, 2025.

The most flights from ONT to SLC are scheduled on a Monday (13 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (3 on average).

Rainfall in Salt Lake City by month

Plan your trip to Salt Lake City by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Salt Lake City ranges from 0.6 - 2.0 inches per month. April is typically the wettest month, when rainfall can reach 2.0 in. July is typically the driest time to visit Salt Lake City when rainfall is around 0.6 in.

Temperature in Salt Lake City by month

Plan your trip to Salt Lake City by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Salt Lake City, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 78.8 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 30.2 F).

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 June 12, 2025.
Read through reviews of airlines operating flights from Ontario to Salt Lake City, such as Alaska Airlines, Southwest and Delta. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
10,000 reviews

Entertainment

7.1

Boarding

8.1

Comfort

7.8

Food

7.1

Overall

8.0

Crew

8.5

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Alaska Airlines
8.0
Very good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Entertainment

7.1

Boarding

8.1

Comfort

7.8

Food

7.1

Overall

8.0

Crew

8.5

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Southwest
8.0
Very good
4,287 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Entertainment

7.1

Boarding

8.1

Comfort

7.8

Food

7.1

Overall

8.0

Crew

8.5

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Delta
8.0
Very good
7,950 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Entertainment

7.1

Boarding

8.1

Comfort

7.8

Food

7.1

Overall

8.0

Crew

8.5

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Hawaiian Airlines
7.9
Good
2,494 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Entertainment

7.1

Boarding

8.1

Comfort

7.8

Food

7.1

Overall

8.0

Crew

8.5

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
United Airlines
7.4
Good
8,790 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Entertainment

7.1

Boarding

8.1

Comfort

7.8

Food

7.1

Overall

8.0

Crew

8.5

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.

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 10 daily flights to Salt Lake City from 5 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 ($202), Delta ($239), and Southwest ($263) offers the cheapest pricing from Ontario to Salt Lake City. Users have found that Frontier is 13% cheaper than the other options available to this destination.

  • What are the cheapest airlines to fly from Ontario to Salt Lake City one-way?

    For one-way options, check prices for Frontier. According to our data, you can fly for as low as $82. Users have also found prices from $113 and $118 on United Airlines and Southwest, respectively.

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

    Consider Virgin Atlantic (99%), SkyWest Airlines (98%) or Aeromexico (98%) 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 $1,206 for a flight from Ontario to Salt Lake City. The cheapest flight overall is $108 while the most popular route, (Ontario - Salt Lake City) is currently priced at $210.

  • 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
West Jordan
Evanston
Draper
South Jordan
Sandy

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Ontario to Salt Lake City

See prices for flight routes from nearby airports that may be better suited for you.
Los Angeles to Salt Lake City flights
San Francisco to Salt Lake City flights
Burbank to Salt Lake City flights
Oakland to Salt Lake City flights
San Diego to Salt Lake City flights
Santa Ana to Salt Lake City flights
San Jose to Salt Lake City flights
Long Beach to Salt Lake City flights
Sacramento to Salt Lake City flights
Reno to Salt Lake City flights
Las Vegas to Salt Lake City flights
Fresno to Salt Lake City flights
Palm Springs to Salt Lake City flights
Los Angeles to Saint George flights
Santa Barbara to Salt Lake City flights
Medford to Salt Lake City flights
San Diego to Saint George flights
San Francisco to Saint George flights
Santa Rosa to Salt Lake City flights
San Luis Obispo to Salt Lake City flights
Monterey to Salt Lake City flights
San Jose to Saint George flights
Ontario to Saint George flights
Sacramento to Saint George flights
Bakersfield to Salt Lake City flights
Santa Ana to Saint George flights
Arcata to Salt Lake City flights
San Diego to Cedar City flights
San Francisco to Cedar City flights
San Francisco to Moab flights
Las Vegas to Saint George flights
Oakland to Saint George flights
San Jose to Cortez flights
Los Angeles to Moab flights
San Francisco to Cortez flights
Long Beach to Saint George flights
Fresno to Saint George flights
Burbank to Saint George flights
Medford to Saint George flights
Mammoth Lakes to Salt Lake City flights
Ontario to Cedar City flights
Palm Springs to Vernal flights
San Jose to Moab flights
Redding to Saint George flights
Las Vegas to Moab flights
Los Angeles to Cedar City flights
Sacramento to Cortez flights
Tijuana to Salt Lake City flights

Top 5 airlines flying from Ontario to Salt Lake City

Discover the top 5 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 June 12, 2025.
AirlineCheapestAverageFlexibilityOn-time
Spirit AirlinesCheapest$33Average$104FlexibilityNo cancel feeOn-time65%
FrontierCheapest$48Average$124FlexibilityNo cancel feeOn-time62%
DeltaCheapest$159Average$299FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$226Average$322FlexibilityNo cancel feeOn-time71%
SouthwestCheapest$236Average$315FlexibilityNo cancel feeOn-time63%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.