Route guide · 558 miles
Cheap Flights from Ontario to Salt Lake City
ONT → SLC · Nonstop 1h 38m · Live round-trip fares
Plenty of travelers price out Ontario to Salt Lake City every day — here's how to beat the average fare. Nonstops run about 1h 38m, and the calendar matters more than the airline. Aim to book 2–4 weeks ahead, stay flexible on the day of the week, and set a free alert so a price drop never slips past you.
Live fares for ONT → SLC are updating. Use the search below for real-time prices.
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Updated daily
Flight time
1h 38m
Nonstop, typical
Distance
558 mi
ONT → SLC
Book ahead
2–4 weeks
Best window, typically
Nonstop airlines
1
Delta Air Lines
Nonstop flights from Ontario to Salt Lake City
Want to skip the layover? Nonstops from Ontario to Salt Lake City are flown by Delta Air Lines, getting you there in about 1h 38m. For the lowest fares, book around 2–4 weeks before departure — last-minute nonstops on this route rarely come cheap.
Booking insights: Ontario → Salt Lake City
- Distance: 558 miles · nonstop flight time: 1h 38m.
- Cheapest upcoming week in the live data starts around Oct 29, with fares from $149.
- Rule of thumb for this route: the sweet spot is usually 2–4 weeks before departure.
- Midweek departures (Tue–Thu) are consistently cheaper than weekend flights.
- Set a free Airfare Deal alert instead of checking daily — the best fares can sell out in hours.
Cheapest month · Ontario → Salt Lake City
October 2026
Every date's recent round-trip fare, at a glance.
Fares from
$149
Cheapest: Fri, Oct 30 — $149
Get this fare →Recent fares found for specific dates in October 2026. Blank days had no recent fare in our data — ask our team and we'll check them for you.
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Flying from Ontario to Salt Lake City: what you need to know
The flight
Ontario to Salt Lake City covers 558 miles, and a nonstop gets it done in about 1h 38m. That's long enough to settle in with a coffee and a downloaded show, short enough that a connection rarely makes sense — a layover usually doubles your travel day to save very little.
Airlines on this route
Delta Air Lines flies this route nonstop. That matters more than it sounds: the cheapest fare on one carrier is rarely the same product as the cheapest on another. Checked-bag fees, free seat selection and change rules all differ, so compare the full trip cost before you pick a winner. See our airline guides for exactly what each carrier charges — then send an enquiry and we'll confirm the all-in price for your dates.
Leaving from Ontario (ONT)
Plan to be at the airport two hours before a domestic departure — ninety minutes can work at smaller airports outside peak times, but security lines are the one variable you can't control. If you're checking a bag, add time rather than cutting it close. Our Ontario airport guide covers terminals, parking and ground transport so you can plan the trip to the airport, not just the flight.
Arriving in Salt Lake City (SLC)
Before you land, know how you're getting from the airport to where you're staying — it's the part of the trip people forget to plan. The Salt Lake City airport guide lays out your ground options, from transit and shuttles to rideshares and rental cars. Flying back the other way? Check Salt Lake City to Ontario fares — prices on the return direction often move on a different rhythm.
When to book
For a trip of 558 miles, booking 2–4 weeks ahead typically lands you in the sweet spot. Leave it to the final two weeks and prices usually climb as the cheapest seats sell out. If your dates are flexible, midweek departures are where the lower fares hide on most domestic routes.
Good to know before you go
- If you're traveling with only a carry-on, you can skip the bag-drop line entirely with mobile check-in.
- Download the airline's app before you fly; gate changes and delays show up there first.
- Nonstop time on this route is about 1h 38m — a one-stop itinerary needs to be a lot cheaper to be worth the extra hours.
- Tuesday and Wednesday departures are typically the cheapest days on domestic routes.
- Screenshot your fare before you enquire — prices move, and a saved fare helps our team match or beat it.
Ontario to Salt Lake City flight FAQs
How long is the flight from ONT to SLC?
A nonstop from ONT to SLC clocks in at around 1h 38m for the 558-mile trip. If you're connecting, budget an extra 2–4 hours depending on where you stop.
Are there nonstop flights from Ontario to Salt Lake City?
Yes — look for Delta Air Lines on this route. Nonstop seats are usually priced best 2–4 weeks before departure.
What is the cheapest month to fly from Ontario to Salt Lake City?
Fares from Ontario to Salt Lake City tend to ease outside the peak summer and holiday rush — the late-summer and early-fall shoulder weeks are usually kinder on the wallet. Set a free Airfare Deal alert and we'll flag the dips for your dates.
How much are last minute flights from ONT to SLC?
Last-minute flights from ONT to SLC (booked within 7 days of departure) typically cost noticeably more than fares booked 2–4 weeks out. Booking early is the smarter move.
What is a good round-trip deal from Ontario to Salt Lake City?
A good deal is anything at or below the recent fares shown above. Set a free Airfare Deal alert and we'll ping you the moment fares drop.
Which airlines fly from Ontario to Salt Lake City?
The main carriers on this route are Delta Air Lines. Comparing all of them on the live search below usually surfaces the lowest fare for your dates.
How early should I get to Ontario airport for this flight?
Plan on two hours before departure for a domestic flight — ninety minutes can work at smaller airports outside peak times. If you're checking a bag, earlier is better; the bag-drop line, not the flight, is what runs late.
Do the cheapest fares on this route include a checked bag?
Usually not. Basic economy fares on most airlines include a carry-on but charge extra for checked bags, and seat selection can cost more too. Add up the real total before comparing — a slightly higher regular fare sometimes works out cheaper. Our team confirms the full breakdown with you before you pay.
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