SLC - ONT

$54 Find Cheap Flights from Salt Lake City to Ontario

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Salt Lake City to Ontario departing on 6/3. 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 Ontario

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

Cheapest round-trip
$98
Typical prices: $431-$198
Frontier
Thu 4/30Fri 5/1
SLC - ONT • 1 stop
Cheapest non-stop
$240
Typical prices: $409-$297
Frontier
Fri 5/1Mon 5/4
SLC - ONT • Non-stop
Advice from real travelers
AI-powered summary based on content written by travel experts. AI can make mistakes.
Delta offers free Wi-Fi for SkyMiles members.
Use the Metrolink San Bernardino Line to reach ONT.
Expert advice
Expert advice
Expert advice
Expert advice
Nonstop flights
Every day
You can fly direct with Delta and Frontier. Average duration is 1h 52m
Direct flights
Direct flights
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Direct flights
Direct flights
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Top layover airports
Cheapest • Avg $201 (round-trip)
Shortest trip • 4h 05m (one-way)
Insights
Insights
Insights
Insights
When to book
in advance
Our data shows that travelers who book at least 4 weeks in advance save around 41% compared to booking last minute.
Insights
Insights
Insights
Insights
When to travel
Cheapest • 20% price drop
Most popular
Good to know
Good to know
+1
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Good to know
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Start a new search
KAYAK searches 100s of sites at once to find you the best travel deals.
We hope you love your trip to Ontario!
Flight Deals
Booking Insights
Expert advice
Flight Deals

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

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Salt Lake City to Ontario 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 Salt Lake City to Ontario

Thu, Apr 30 - Fri, May 1
Frontier Logo
3:19 pm - 11:55 pm
SLC
-
ONT
9h 36m
1 stop
Frontier Logo
9:00 am - 11:52 am
ONT
-
SLC
1h 52mnonstop
$98Frontier
Mon, May 4 - Tue, May 5
Frontier Logo
10:29 am - 11:27 am
SLC
-
ONT
1h 58mnonstop
Frontier Logo
10:50 am - 3:44 pm
ONT
-
SLC
27h 54m
1 stop
$109Frontier
Thu, Jun 4 - Tue, Jun 9
Frontier Logo
1:32 pm - 3:09 pm
SLC
-
ONT
26h 37m
1 stop
Frontier Logo
3:34 pm - 9:35 am
ONT
-
SLC
17h 01m
1 stop
$112Frontier
Wed, May 6 - Wed, May 13
Frontier Logo
1:32 pm - 3:09 pm
SLC
-
ONT
26h 37m
1 stop
Frontier Logo
4:39 pm - 9:30 am
ONT
-
SLC
15h 51m
1 stop
$115Frontier
Thu, Jun 4 - Tue, Jun 9
Frontier Logo
10:54 pm - 10:05 am
SLC
-
ONT
12h 11m
1 stop
Frontier Logo
3:34 pm - 9:35 am
ONT
-
SLC
17h 01m
1 stop
$118Frontier
Thu, May 7 - Mon, May 11
Frontier Logo
8:30 pm - 10:05 am
SLC
-
ONT
14h 35m
1 stop
Frontier Logo
8:44 am - 9:30 am
ONT
-
SLC
23h 46m
1 stop
$121Frontier
Thu, Apr 30 - Fri, May 1
Frontier Logo
3:19 pm - 11:55 pm
SLC
-
ONT
9h 36m
1 stop
Frontier Logo
5:33 pm - 8:01 am
ONT
-
SLC
13h 28m
1 stop
$126Frontier
Wed, May 13 - Sat, May 16
Frontier Logo
4:29 pm - 11:49 pm
SLC
-
ONT
8h 20m
1 stop
Frontier Logo
10:50 am - 7:38 am
ONT
-
SLC
19h 48m
1 stop
$137Frontier
Tue, May 5 - Tue, May 12
Frontier Logo
4:29 pm - 11:49 pm
SLC
-
ONT
8h 20m
1 stop
Frontier Logo
10:50 am - 7:29 pm
ONT
-
SLC
7h 39m
1 stop
$140Frontier
Thu, May 7 - Sun, May 10
Frontier Logo
8:30 pm - 10:05 am
SLC
-
ONT
14h 35m
1 stop
Frontier Logo
4:04 pm - 9:30 am
ONT
-
SLC
16h 26m
1 stop
$141Frontier
Booking Insights

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

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

How much is a round-trip flight from Salt Lake City to Ontario?

This analysis is based on the cheapest round-trip price found on KAYAK in the last 12 months by searching for a flight from Salt Lake City to Ontario departing in April.

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

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

For Salt Lake City to Ontario, Thursday is the cheapest day to fly on average and Monday is the most expensive. Flying from Ontario back to Salt Lake City, the best deals are generally found on Thursday, with Monday being the most expensive.

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

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Salt Lake City to Ontario, 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 Salt Lake City to Ontario is February, where tickets cost $220 (return) on average. On the other hand, the most expensive months are November and April, where the average cost of round-trip tickets is $329 and $308 respectively.

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

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.

No, with an average price for the route of $339, prices are generally cheapest when you fly direct.

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

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from Salt Lake City to Ontario, 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 Salt Lake City to Ontario, you should book around 4 weeks before departure, which saves you about 41% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 18 weeks before departure.

Expert advice

Expert advice for your flight from Salt Lake City to Ontario

 
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 seasonMarch
Cheapest flight$54
Best time to beat the crowds but there is an average 8% increase in price.
Most popular time to fly and prices are also 7% lower on average.
Flight from Salt Lake City to Ontario

When to book flights from Salt Lake City to Ontario

Are your dates flexible? Find out the best times to travel from Salt Lake City to Ontario 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 Salt Lake City to Ontario

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

    In the last 3 days, the lowest price for a flight from Salt Lake City to Ontario was $54 for a one-way ticket and $98 for a round-trip.

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

    No, a passport isn't needed to fly from Salt Lake City to Ontario. However, local authorities might ask for an official ID.

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

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

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

    The Airbus A320neo is the aircraft model that flies most regularly on the Salt Lake City to Ontario flight route.

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

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

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

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

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

    The two airlines most popular with KAYAK users for flights from Salt Lake City to Ontario are Southwest and Delta. With an average price for the route of $272 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 $316 and an overall rating of 7.9.

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

    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 Salt Lake City to Ontario.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Ontario from Salt Lake City 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 Salt Lake City to Ontario?

    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 Ontario with an airline and back to Salt Lake City with another airline. Booking your flights between Salt Lake City and ONT 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 Salt Lake City to Ontario?

    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 Ontario from Salt Lake City 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 Salt Lake City to Ontario

  • Looking for a cheap flight? 25% of our users found flights on this route for $134 or less one-way and $339 or less round-trip.

Prefer to fly direct from Salt Lake City to Ontario?

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

Direct departures

Salt Lake City to Ontario

Monday

Delta,Frontier

Delta,Frontier

Tuesday

Delta

Delta

Wednesday

Delta

Delta

Thursday

Delta

Delta

Friday

Delta

Delta

Saturday

Delta

Delta

Sunday

Delta

Delta

See more direct flights

Direct returns

Ontario to Salt Lake City

Monday

Delta,Frontier

Delta,Frontier

Tuesday

Delta

Delta

Wednesday

Delta

Delta

Thursday

Delta

Delta

Friday

Delta

Delta

Saturday

Delta

Delta

Sunday

Delta

Delta

See more direct flights

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

 
See real verified KAYAK customer reviews for airlines flying from Salt Lake City to Ontario. 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 Salt Lake City to Ontario? 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 4335 reviews
7.0Food
8.6Crew
8.0Comfort
7.5Entertainment
8.1Boarding
Airline reviews

The Air hostess were very rude on my flight from Houston to Austin . Their regular communication itself felt a they are shouting at people.

4.0 Okaysangeetha, Apr 2026
AUS - SJC
Read more Southwest reviews

The Air hostess were very rude on my flight from Houston to Austin . Their regular communication itself felt a they are shouting at people.

Boarding was easy. The seats are small and fairly uncomfortable

The problem with the seat assignments is that there were a lot of rows in the front that were empty but my row at the back was full. Just not so pleasant.

No food or entertainment, just a quick 40 minute flight. A little bumpy due to Santa Ana winds but pilot has no control over that. Good flight and landing!

Good but I prefer choose your own seat. With the new assigned seats they should board from the back I see no advantage to this new boarding. Just like every other airline

Mediocre. Boarding is now unpleasant. The employees, once friendly and nice, are now regularly speaking sternly to passengers, badgering them to do things right so they can take off on time and gate check bags because they don't have enough overhead bin space. The pretzel snack was crushed flat and broken into even smaller pieces, which happens frequently lately. Drink service was suspended before they reached my row.

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

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

The flight crew was extremely rude and especially not helpful when our flight was delayed.

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.

Everything was great until I lost my water bottle and they can’t seem to locate it. I know I left it on the plane though.

WiFi didn’t work most of the time. The usb chargers would work only occasionally for 5 mins and wouldn’t charge after that. Had to keep trying repeatedly at each of the seats in the row.

The crew bent over backwards to thank us for flying and make us comfortable. The food service was quick and efficient. The Captain communicated and said goodbye and thank you as we departed. They really stood out!

Generally on time departures and arrivals, clean planes, sky miles membership provides great benefits (complimentary upgrades, etc).

my mom urmila patel needed a wheelchair which was not available on the curbside. she needed to walk almost 50 meters inside (at the risk of falling) and then had to wait in line to get a wheelchair (this is not ok). Once obtained she had to seat in it for 30-45 minutes for someone to take her in thru the checkin process (which was fairly smooth and easy). the lady who helped her with her checkin process was very courteous and helpful

Staff at the check-in counter were friendly, happy and helpful. They tagged our bags and sent us to “bag drop off” but were not very clear about where that was. The airport was busy we headed off in what we thought was the right direction until a gentleman waved us down and actually came after us. He was the baggage handler for Delta and recognized our “deer in the headlights “ look-he brought us to the right area (which was marked as the Southwest Airlines Drop Off) and sent us on our way. Wonderful guy, low key and working with a big smile on his face. Loved it. Loved him.

Arlene was a great flight attendant. I also liked how one of the other flight attendants gave us a heads up about snacks and asked everyone to remove their headphones when it was their turn to order. Good idea.

I haven’t flown economy in over 20 years but it was not bad. Room by my feet for my bag and seat was roomy enough. Surprised in a good way.

Smaller plane for a longer flight than my first one. Doesn’t make sense.

The cabin temperature was nice and cool. The wifi was not working.

They switched our terminal 3 times and we were delayed for four plus hours!!!

It was an early flight and most people napped/slept and the crew let us which was nice.

The crew acted like they had never done this and kept barking passive aggressive orders at people. + the security line + the delay + sitting on the tarmac for 2 hours + none of the apps or signage updating with correct times

More inflight connection. And leg space is horrible. And the paying for baggage I'd ridiculous!!!

My flight was originally from SAT to MCO connecting from MCO to ORD. We got diverted to ATL and than Frontier staff there was sooo un helpful first they said they couldn’t give us any accommodation since our flight first got delayed that cancelled and now it’s 221am and I am still in ATL since they said they need to create a new flight my final destination is ORD and I have been delayed twice and cancelled. With no real help the frontier app didn’t work no email updates over all such a horrible experience

There's no seats that lean back with little leg space i wad uncomfortable the entire flight. Your charges for extra baggage is despicable and costly!!

Remind customers of the need to have passport or new ID for boarding.

Flight was canceled. Most upsetting was message from Kayak, stating that the flight was canceled and click with Kayak for details regarding rebook, refund details. THERE'S NO INFORMATION PROVIDED BY KAYAK EXCEPT THAT FLIGHT IS CANCELED. AND NOW THIS SURVEY TO FIND OUT HOW WAS THE FLIGHT !!!!!!!

The flight never took off and we spent 7 hours at the airport

Gate not determined until I got to the airport - hard to plan the trip to the airport.

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

Information on your arrival and departure airports