Route guide · 390 miles
Cheap Flights from Ontario to Sacramento
ONT → SMF · Nonstop 1h 18m · Live round-trip fares
If Sacramento is next on your list, here's the honest picture on fares from Ontario. The trip covers about 390 miles and takes roughly 1h 18m in the air. Prices on this route reward planners: booking 2–4 weeks ahead is the sweet spot, and the lowest fares tend to sell out fast.
Live fares for ONT → SMF are updating. Use the search below for real-time prices.
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Updated daily
Flight time
1h 18m
Nonstop, typical
Distance
390 mi
ONT → SMF
Book ahead
2–4 weeks
Best window, typically
Nonstop airlines
1
Southwest Airlines
Nonstop flights from Ontario to Sacramento
Nonstop flights from Ontario to Sacramento are flown by Southwest Airlines. The 390-mile trip takes about 1h 18m gate to gate, and nonstops are usually cheapest when booked 2–4 weeks ahead.
Booking insights: Ontario → Sacramento
- Distance: 390 miles · nonstop flight time: 1h 18m.
- Fares tend to bottom out when you book about 2–4 weeks ahead — earlier than that rarely helps, later usually hurts.
- Tuesday and Wednesday departures usually undercut Friday and Sunday fares on routes like this one.
- A free fare alert beats daily checking: we watch this route and ping you when prices drop.
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Flying from Ontario to Sacramento: what you need to know
The flight
At 390 miles, ONT to SMF is one of those quick up-and-down flights: roughly 1h 18m nonstop. There's no meal service to plan around — the decisions that matter here are departure time and which airport entrance traffic is kinder to you.
Airlines on this route
Southwest Airlines 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 Sacramento (SMF)
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 Sacramento airport guide lays out your ground options, from transit and shuttles to rideshares and rental cars. Flying back the other way? Check Sacramento to Ontario fares — prices on the return direction often move on a different rhythm.
When to book
For a trip of 390 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
- Download the airline's app before you fly; gate changes and delays show up there first.
- Nonstop time on this route is about 1h 18m — 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.
- Flexible dates? Search a few days either side — one day can change the fare a lot.
Ontario to Sacramento flight FAQs
How long is the flight from ONT to SMF?
Nonstop flights from Ontario to Sacramento take about 1h 18m and cover roughly 390 miles. One-stop itineraries add 2–4 hours depending on the layover city.
Are there nonstop flights from Ontario to Sacramento?
Southwest Airlines typically operate nonstop flights from ONT to SMF. Nonstops are usually cheapest when booked 2–4 weeks ahead of departure.
What is the cheapest month to fly from Ontario to Sacramento?
Travelers usually find the gentlest prices away from peak periods — think post-holiday January and the early-fall weeks. Midweek dates inside those windows are cheaper still.
How much are last minute flights from ONT to SMF?
Book inside the final week and you'll usually pay a premium on ONT to SMF. Fares booked 2–4 weeks ahead are almost always kinder.
What is a good round-trip deal from Ontario to Sacramento?
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 Sacramento?
You'll mainly see Southwest Airlines on Ontario to Sacramento. Checking each against the live fares below is the surest way to find the lowest price 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.
More cheap flights from Ontario
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