ONT - SLC

$54 Find Cheap Flights from Ontario to Salt Lake City

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Ontario to Salt Lake City departing on 4/9. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

KAYAK searches hundreds of travel sites at once for deals on flights to Salt Lake City

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Ontario to Salt Lake City, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Ontario to Salt Lake City, as well as popular online travel agencies
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Everything you should know

Cheapest round-trip
$108
Overall average: $306
Frontier
Fri 4/17Fri 4/24
ONT - SLC • Non-stop
Cheapest one-way
$54
Typical prices: $102-$148
Frontier
Thu 4/9
ONT - SLC • Non-stop
Advice from real travelers
AI-powered summary based on content written by travel experts. AI can make mistakes.
Delta's Comfort Plus seats offer extra legroom.
ONT has streamlined security with short wait times.
Expert advice
Expert advice
Expert advice
Expert advice
Nonstop flights
Every day
You can fly direct with Delta and Frontier. Average duration is 1h 50m
Direct flights
Direct flights
+1
+1
Direct flights
Direct flights
+1
Top layover airports
Denver (DEN)
Cheapest • Avg $223 (round-trip)
Phoenix (PHX)
Shortest trip • 3h 54m (one-way)
Insights
Insights
Insights
Insights
When to book
5 weeks
in advance
Our data shows that travelers who book at least 5 weeks in advance save around 42% compared to booking last minute.
Insights
Insights
Insights
Insights
When to travel
August
Cheapest • 18% price drop
May
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
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We hope you love your trip to Salt Lake City!
Flight Deals
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Flight Deals

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

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Ontario to Salt Lake City that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Ontario to Salt Lake City

Fri, Apr 17 - Fri, Apr 24
Frontier Logo
9:12 am - 12:04 pm
ONT
-
SLC
1h 52mnonstop
Frontier Logo
9:49 am - 10:49 am
SLC
-
ONT
2h 00mnonstop
$108Frontier
Thu, Apr 2 - Tue, Apr 7
Frontier Logo
6:10 pm - 9:00 pm
ONT
-
SLC
1h 50mnonstop
Frontier Logo
7:36 pm - 8:31 pm
SLC
-
ONT
1h 55mnonstop
$113Frontier
Tue, Apr 14 - Sat, Apr 18
Frontier Logo
12:59 am - 11:14 pm
ONT
-
SLC
21h 15m
1 stop
Frontier Logo
3:19 pm - 11:55 pm
SLC
-
ONT
9h 36m
1 stop
$125Frontier
Sat, Mar 28 - Fri, Apr 3
Frontier Logo
7:31 pm - 9:00 am
ONT
-
SLC
12h 29m
1 stop
Frontier Logo
1:00 pm - 8:07 pm
SLC
-
ONT
8h 07m
1 stop
$126Frontier
Mon, Mar 30 - Sun, Apr 5
Frontier Logo
9:49 pm - 9:00 am
ONT
-
SLC
10h 11m
1 stop
Frontier Logo
10:28 pm - 8:04 am
SLC
-
ONT
10h 36m
1 stop
$128Frontier
Tue, Mar 24 - Wed, Mar 25
Frontier Logo
2:23 pm - 9:00 am
ONT
-
SLC
17h 37m
1 stop
Frontier Logo
8:30 pm - 7:12 am
SLC
-
ONT
11h 42m
1 stop
$129Frontier
Mon, Mar 23 - Sat, Mar 28
Frontier Logo
3:30 pm - 9:00 am
ONT
-
SLC
16h 30m
1 stop
Frontier Logo
8:30 pm - 7:12 am
SLC
-
ONT
11h 42m
1 stop
$131Frontier
Sat, Mar 28 - Sat, Apr 4
Frontier Logo
7:31 pm - 9:00 am
ONT
-
SLC
12h 29m
1 stop
Frontier Logo
9:57 am - 7:19 pm
SLC
-
ONT
10h 22m
1 stop
$132Frontier
Sat, Apr 18 - Tue, Apr 21
Frontier Logo
7:44 pm - 9:02 am
ONT
-
SLC
12h 18m
1 stop
Frontier Logo
6:19 pm - 11:55 pm
SLC
-
ONT
6h 36m
1 stop
$133Frontier
Fri, Apr 17 - Mon, Apr 20
Frontier Logo
5:33 pm - 12:08 am
ONT
-
SLC
5h 35m
1 stop
Frontier Logo
9:49 am - 10:49 am
SLC
-
ONT
2h 00mnonstop
$134Frontier
Booking Insights

KAYAK's insights & trends for Ontario to Salt Lake City flights

Get data-powered insights and trends into flights from Ontario to Salt Lake City to help you find the cheapest flights, the best time to fly and much more.

What’s the cheapest day of the week to fly from Ontario to Salt Lake City?

The average price of all round-trip flights from Ontario to Salt Lake City clicked on KAYAK for each day over the last 12 months.

When flying from Ontario to Salt Lake City, you should consider leaving on a Thursday and avoid Mondays if you are looking for the best rates. For your return to Ontario, you’ll find the best rates on Tuesdays and the most expensive ones on Mondays.

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

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Ontario to Salt Lake City, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from Ontario to Salt Lake City is August, where tickets cost $239 (return) on average. On the other hand, the most expensive months are December and February, where the average cost of round-trip tickets is $357 and $326 respectively.

Can I save money by flying with a layover from Ontario to Salt Lake City?

The average round-trip price for all non-stop flights, flights with one layover, and flights with two layovers for the route found by users searching on KAYAK in the last 2 weeks.

Yes, flying with a layover may cost you more time, but you can also save money on the route, with a 1 stop layover the cheapest option at $299 on average.

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

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from Ontario to Salt Lake City, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

To get a below average price on the flight from Ontario to Salt Lake City, you should book around 5 weeks before departure, which saves you about 42% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 9 weeks before departure.

Expert advice

Expert advice for your flight from Ontario to Salt Lake City

 
AI-powered summary based on content written by travel experts. AI can make mistakes.
KAYAK teamed up with top travel experts to share the best tips for your journey.
Our travel experts
Stefanie Waldek

Stefanie Waldek

Expert on Delta and Frontier

Stefanie Waldek is a freelance space, travel, and design writer based in Saratoga Springs, NY. Her words have appeared in Space.com, Travel + Leisure, Condé Nast Traveler, Architectural Digest, and House Beautiful, among other publications. An expert in aviation and expedition cruising, Stefanie is frequently up in the air or on the sea, likely en route to Antarctica or the Arctic.

Jennifer Simonson

Jennifer Simonson

Expert on ONT

Jennifer Simonson is driven by her lifelong commitment to exploring the globe. Her insatiable curiosity had led her to immerse herself into diverse locations like Oklahoma City and Pismo. Her hotel recommendations are the result of the myriad hotels she's stayed at across her travels. Along her journey, she cherishes engaging conversations with locals, indulging in the finest ice cream, trying her hand at surfing, and embarking on nature-filled hikes.

Harriet Baskas

Harriet Baskas

Expert on SLC

Harriet is an award-winning journalist who is happiest in an airport or an unusual museum. Her stories about airports, air travel, and the business of travel have appeared on NBC News, CNBC, USA TODAY, The Points Guy and other outlets. She is the creator of the StuckatTheAirport.com blog and the author of nine books. When not out on the road or exploring the latest airport amenities, she’s home in Seattle getting ready for the next adventure.

Good to know

Low seasonNovember
Cheapest flight$54
Best time to beat the crowds but there is an average 5% increase in price.
Most popular time to fly and prices are also 9% lower on average.
Flight from Ontario to Salt Lake City

When to book flights from Ontario to Salt Lake City

Are your dates flexible? Find out the best times to travel from Ontario to Salt Lake City based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking flights from Ontario to Salt Lake City

  • Where are the lounges at ONT Airport located?

    Ontario International Airport has three lounges where travelers can stop by and comfortably have a drink while waiting to board their flight. These lounges include two Aspire Lounges and a USO Lounge. The Aspire Lounges are located in Terminal 2 near Gate 209 and Terminal 4 behind Gate 410. The USO Lounge, on the other hand, is located in the Administration Building (Old Terminal 1) and is only open to military personnel and their families.

  • Is public transport available to ONT from downtown Ontario?

    Yes, you can take the bus from downtown Ontario to the airport. Head to the station at Holt @ Palm Eb and take the 61 bus which goes directly to the airport. Alternatively, you can take a taxi if you need to get to the airport as quickly as possible. They are available everywhere around downtown so finding one shouldn’t be difficult.

  • How do I get from SLC to the city center?

    There are a few transport options available from SLC to the city center. If you’re working with a tight budget, the metro is worth considering. Just head to the airport station and board the Green Line towards West Valley. If you would rather go for convenience, there are plenty of taxis available outside the arrivals terminal and they will drop you at any destination in the city.

  • How can I get cheaper flight tickets?

    If you’re looking to save a few dollars on flight tickets, try booking your flight a few months in advance. This is because ticket prices tend to increase as the demand for tickets increases, and the demand for tickets increases as the travel date approaches. Therefore, by booking in advance, you will be avoiding the price surges that happen over time. You should also try and be more flexible with travel dates. Avoid booking days with high demand such as holidays and weekends.

  • What is the cheapest flight from Ontario to Salt Lake City?

    In the last 3 days, the lowest price for a flight from Ontario to Salt Lake City was $54 for a one-way ticket and $108 for a round-trip.

  • Do I need a passport to fly between Ontario and Salt Lake City?

    No

  • Which airlines offer Wi-Fi service onboard planes from Ontario to Salt Lake City?

    Delta, Alaska Airlines, JetBlue, and American Airlines offer inflight Wi-Fi service on the Ontario to Salt Lake City flight route.

  • Which aircraft models fly most regularly from Ontario to Salt Lake City?

    The Airbus A321neo is the aircraft model that flies most regularly on the Ontario to Salt Lake City flight route.

  • Which airline alliances offer flights from Ontario to Salt Lake City?

    SkyTeam is the only airline alliance operating flights between Ontario and Salt Lake City.

  • On which days can I fly direct from Ontario to Salt Lake City?

    There are nonstop flights from Ontario to Salt Lake City on a daily basis.

  • Which is the best airline for flights from Ontario to Salt Lake City, Southwest or Delta?

    The two airlines most popular with KAYAK users for flights from Ontario to Salt Lake City are Southwest and Delta. With an average price for the route of $330 and an overall rating of 8.0, Southwest is the most popular choice. Delta is also a great choice for the route, with an average price of $312 and an overall rating of 7.9.

  • How does KAYAK find such low prices on flights from Ontario to Salt Lake City?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Ontario to Salt Lake City.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Ontario to Salt Lake City?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Salt Lake City from Ontario is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Ontario to Salt Lake City?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Salt Lake City with an airline and back to Ontario with another airline. Booking your flights between Ontario and SLC can sometimes prove cheaper using this method.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Ontario to Salt Lake City?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Salt Lake City from Ontario up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

KAYAK’s top tips for finding a cheap flight from Ontario to Salt Lake City

  • Looking for a cheap flight? 25% of our users found flights on this route for $150 or less one-way and $275 or less round-trip.
  • Ontario International Airport (ONT) has baby care rooms for travelers with infants. These rooms are ideal for pumping and breastfeeding as well as changing diapers. They are located in Terminal 2 across from Gate 207 and Terminal 4 across from Gate 407.
  • If you plan on leaving your car at the ONT airport parking, you should reserve a spot in advance to avoid wasting a lot of time roaming the car park. You can also opt for the offsite parking lots which usually charge lower prices compared to airport parking.
  • ONT Airport has courtesy shuttles that help travelers move from one terminal to another as well as from the parking lots to the terminals and ConRAC facility. These shuttles run every five minutes and a free to use.
  • If you need any assistance while at Salt Lake City International Airport (SLC), just look for an information desk. They are located in both terminals across from baggage claim. These desks are usually staffed with airport officials who are always happy to help.
  • SLC Airport has baggage carts available to all travelers who need help carrying their luggage. to get these carts, you will have to pay a $5 fee for every cart and the amount is partially refundable if you return the cart. The refund ranges between $0.25 and $1.

Prefer to fly direct from Ontario to Salt Lake City?

 
Direct data is based off flight results for the next 60 days. Find direct flights from all airlines flying direct from Ontario to Salt Lake City.
Find which airlines fly direct from Ontario Airport to Salt Lake City Airport, which days they fly and book direct flights.

Direct departures

Ontario to Salt Lake City

Monday

Delta, Frontier

Delta, Frontier

Tuesday

Delta, Frontier

Delta, Frontier

Wednesday

Delta

Delta

Thursday

Delta, Frontier

Delta, Frontier

Friday

Delta, Frontier

Delta, Frontier

Saturday

Delta

Delta

Sunday

Delta, Frontier

Delta, Frontier

See more direct flights

Direct returns

Salt Lake City to Ontario

Monday

Delta, Frontier

Delta, Frontier

Tuesday

Delta, Frontier

Delta, Frontier

Wednesday

Delta

Delta

Thursday

Delta, Frontier

Delta, Frontier

Friday

Delta, Frontier

Delta, Frontier

Saturday

Delta

Delta

Sunday

Delta, Frontier

Delta, Frontier

See more direct flights

Reviews of the top 3 airlines serving from Ontario to Salt Lake City

 
See real verified KAYAK customer reviews for airlines flying from Ontario to Salt Lake City. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Ontario to Salt Lake City? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
8.0
SouthwestOverall score based on 4307 reviews
8.6Crew
8.1Boarding
7.5Entertainment
7.0Food
8.0Comfort
Airline reviews

Flight boarded late after announcing on time boarding. Flight arrived only a little late despite late departure. Had trouble connecting to WiFi

4.0 OkayEmma, Mar 2026
LAX - PHX
Read more Southwest reviews

Flight boarded late after announcing on time boarding. Flight arrived only a little late despite late departure. Had trouble connecting to WiFi

The Southwest experience has definitely taken a dive from its early days. You can no longer deferentiate from other airlines. Air travel is too expensive. Southwest is no longer budget friendly. They have lost me as a loyal customer.

The charges were ridiculous for an hour flight and the turbulence was very scary.

The seats are now more narrow. I paid for front row the seats in the front are even more narrow than before.

The wifi on the plane is great. The only issue that I have is that I prefer an aisle seat and on my trips this week, I was either in the middle or window. If we can work to secure aisle seating, I will be thrilled. Nice trip.

Great flight but super high price. Glad it was a business trip and not personal

3 hour delay. Had to change plans and was still delayed.

We got exit row seats both flights. Everything was running on time

The boarding and seat assignment system no longer works for me, but I know it is being replaced. Otherwise, I am good with the overall experience.

The lead steward kept singing about "San Francisco" and hotel California---more annoying than humorous....needs work. Flight was smooth and on time.

Flight was delayed by 3-hours and their fix was… complimentary pretzels.

The crew, and fellow passengers, were super gracious and kind. There seemed to be plenty of bin space even though the plane was full. It’s nice to get a glass of wine with dinner in Premiere seating, and there was a lot of food.

First flight out and was 85 minutes delayed. Notification came out way too late

Everything I mentioned earlier - the airbus was more comfortable indeed and the experience was further enhanced.

The plane was an older model, so it wasn’t as comfortable as others. The flight attendants were not helpful during onboarding. It was a full flight so there was chaos finding space for baggage.

Awesome! On time flight, early arrival, and a complimentary upgrade!

Delta One is extraordinary. I fly business when somebody hires me. I just wonder why there is such a chasm between business class and the insanely inhumane and nonsensical coach. The seats are not large enough to fit even my tiny wife. We fly 10% of what we did because we don’t want to pay 5-10 k but for $400 it’s unbearable. It seems like the accountants took over and made stupid decisions. Screw in 20 extra seats and make it so unbearable that people fly 90% less. Just put the damn price up and put some proper chairs in. But business, yay.

Delta’s staff is unmatched. From the gate agents, to the pilots, to the flight attendants… all top of the industry.

Departure was delayed resulting in me missing my connection. Delta did not autimatically find me another flight.

This flight was a first class choice and left much to be desired. Seat backs on seats were falling apart and torn. Seats actually didn't come to a "full & upright position". Pull out table was sprung. Not any significant leg room. All in all we were on an obviously older plane and felt overcharged for what we received as first class.

It was ok. It was expensive to check 2 bags ($75.00 per bag), and then it took a long time to wait for shuttle to take us from one terminal to the terminal where the plane was taking off at LAX. And all of this for a flight where we had to pay for any food or drink that was not water.

When I wanted to check in 3 hours prior to boarding time, the employees mentioned “a little over an hour delay” so I waited for an hour then I went to go look for food in the terminal and most people from that flight were in the same area looking for food. Finally I decided after food to check to see if it’s anytime closer and now it’s 2 mins until boarding closes?! What are you kidding me? I didn’t receive anything via sms about boarding now nor via email or on the intercom. I luckily made it through, barely, and then there’s no room for my carry on mind you I’m in the very first row so I had to place my purse in one further row back and my carry on sections down. Not sure who pays for better seats to get your stuff placed all over the plane but that was the worst experience I’ve ever had flying with anyone.

This airline sucks. They offer low rates then charge you for everything, the app does not work well, the seats are the most uncomfortable. Maintenance issues on the flight, and you still have to sit through their credit card commercials. People are nice enough but does not make up for overall poor experience.

No way to get boarding pass on my phone. In order to print the bag ticket a boarding pass is needed. Asked the agent to print me one, they said they typically do not due this as its so much work. I showed the email confirmation and I asked how i could do it my self the agent replied he did not know as there was no link. The flight was delayed due to an attendant forgetting to come to work. On the flight no drinks were offered only for purchase meals.

Cancelled flight after I arrived at airport after 75 min drive and parking. Next flight was 4 days in the future. Had to scramble and buy a much more expensive flight on another carrier.

I liked the turn-style feature at gate 209B at LAX. Very efficient process. The gate staff also made several, clearly directed announcements so I felt very informed.

The seats were awful, hard plastic covered in sheet vinyl. The airline tries to scam you into paying extra to get seat together when the flight wasn’t full. They were going to separate a family with young children but my wife who had a row to herself gave up her seat so the young mom could be with her young boys. I’m never giving this airline my money again.

It was a short flight so no food or entertainment….

Frontier had yet another flight cancellation. Have never made a complete round trip with this airline without at least one leg getting cancelled. Miserable flights - dirty, uncomfortable planes that apparently always have issues since I've had multiple delays and cancellations with them.

Flight was delayed 3 times, would have been nice to have received text message instead of email notifications. Frontier app wasn’t even updated accordingly, no gate number disclosed. No agent at front desk of gate to inform of delay. Very confused and left if the dark

Everything you need to know for your flight from Ontario to Salt Lake City

Information on your arrival and departure airports