Cheap Flights from Sacramento to Ontario International from $221

Compare Sacramento to Ontario International flight deals

Find the cheapest month or even day of the year to fly to Ontario International

Book the best Ontario International fare with no extra fees

Flight deals from Sacramento to Ontario International

Looking for a cheap last-minute deal or the best return flight from Sacramento to Ontario International? Find the lowest prices on one-way and return tickets right here.

Ontario.$221 per passenger.Departing Mon, 26 Jan, returning Thu, 29 Jan.Return flight with Frontier Airlines.Outbound indirect flight with Frontier Airlines, departs from Sacramento International on Mon, 26 Jan, arriving in Ontario International.Inbound indirect flight with Frontier Airlines, departs from Ontario International on Thu, 29 Jan, arriving in Sacramento International.Price includes taxes and charges.From $221, select.

Ontario.$292 per passenger.Departing Wed, 14 Jan, returning Wed, 14 Jan.Return flight with Southwest Airlines.Outbound direct flight with Southwest Airlines departs from Sacramento International on Wed, 14 Jan, arriving in Ontario International.Inbound direct flight with Southwest Airlines departs from Ontario International on Wed, 14 Jan, arriving in Sacramento International.Price includes taxes and charges.From $292, select.

Ontario.$292 per passenger.Departing Tue, 10 Feb, returning Tue, 10 Feb.Return flight with Southwest Airlines.Outbound direct flight with Southwest Airlines departs from Sacramento International on Tue, 10 Feb, arriving in Ontario International.Inbound direct flight with Southwest Airlines departs from Ontario International on Tue, 10 Feb, arriving in Sacramento International.Price includes taxes and charges.From $292, select.

Ontario.$313 per passenger.Departing Mon, 26 Jan, returning Tue, 3 Feb.Return flight with Southwest Airlines.Outbound direct flight with Southwest Airlines departs from Sacramento International on Mon, 26 Jan, arriving in Ontario International.Inbound direct flight with Southwest Airlines departs from Ontario International on Tue, 3 Feb, arriving in Sacramento International.Price includes taxes and charges.From $313, select.

Ontario.$357 per passenger.Departing Thu, 8 Oct, returning Thu, 15 Oct.Return flight with United.Outbound indirect flight with United, departs from Sacramento International on Thu, 8 Oct, arriving in Ontario International.Inbound indirect flight with United, departs from Ontario International on Thu, 15 Oct, arriving in Sacramento International.Price includes taxes and charges.From $357, select.

Ontario.$371 per passenger.Departing Sun, 1 Mar, returning Tue, 3 Mar.Return flight with Southwest Airlines.Outbound indirect flight with Southwest Airlines, departs from Sacramento International on Sun, 1 Mar, arriving in Ontario International.Inbound indirect flight with Southwest Airlines, departs from Ontario International on Tue, 3 Mar, arriving in Sacramento International.Price includes taxes and charges.From $371, select.

Ontario.$392 per passenger.Departing Thu, 26 Feb, returning Thu, 26 Mar.Return flight with Southwest Airlines.Outbound indirect flight with Southwest Airlines, departs from Sacramento International on Thu, 26 Feb, arriving in Ontario International.Inbound indirect flight with Southwest Airlines, departs from Ontario International on Thu, 26 Mar, arriving in Sacramento International.Price includes taxes and charges.From $392, select.

Ontario.$428 per passenger.Departing Wed, 13 May, returning Sat, 16 May.Return flight with Southwest Airlines.Outbound indirect flight with Southwest Airlines, departs from Sacramento International on Wed, 13 May, arriving in Ontario International.Inbound indirect flight with Southwest Airlines, departs from Ontario International on Sat, 16 May, arriving in Sacramento International.Price includes taxes and charges.From $428, select.

Direct flight

Your route at a glance

Cheapest deal$221

Cheapest monthJanuary

Average flight duration1 hour and 23 minutes

Find the cheapest month to fly from Sacramento to Ontario International

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like Sacramento to Ontario International flights are currently cheapest in January.

Dec

Jan

Feb

Mar

Apr

May

Jun

Jul

Aug

Sep

Oct

Nov

Direct flights from Sacramento to Ontario International

Sacramento to Ontario International: Alternative routes

Compare routes from Sacramento to Ontario below. You may find an airport to fly into that's cheaper, faster, or easier than Ontario International.

Finding cheap flights from Sacramento to Ontario International: Frequently asked questions

How much are return flights from Sacramento to Ontario International?

The best price we found for a return flight from Sacramento to Ontario International is $221. This is an estimate based on information collected from different airlines and travel providers over the last 4 days and is subject to change and availability.

How long does it take to fly from Sacramento to Ontario International?

1 hour and 23 minutes is the average flight time from Sacramento to Ontario International.

Which airlines fly direct from Sacramento to Ontario International?

Southwest Airlines flies direct from Sacramento to Ontario International.

How many flights are there a week from Sacramento to Ontario International?

As of December 2025, there are 86 flights per week flying from Sacramento to Ontario International.

When is the cheapest time to fly from Sacramento to Ontario International?

The cheapest month to fly from Sacramento to Ontario International is usually January.

Which upcoming date is cheapest to fly from Sacramento to Ontario International Airport on?

After crunching the numbers on our flight calendar, we found that it is currently cheapest to fly from Sacramento to Ontario International Airport on Monday, 26 January 2026.

Can I get a direct flight from Sacramento to Ontario International Airport?

Yes – the average flight time is 1 hour and 23 minutes.

How can I find the best flight deal to Ontario International?

We show every price from over 1,200 airlines and travel agents, comparing them all so you don’t have to. If you know you want to fly to Ontario International but you’re not ready to book, set up a Price Alert. We’ll track prices for you, and let you know when they rise or fall.

When is the best time to book flights to Ontario?

We crunched all the numbers in our flight calendar and it looks like the cheapest time to book a flight to Ontario is around 40 days in advance, so don’t leave your flight to the last minute.

Flying from Sacramento to Ontario International Airport (ONT): What you need to know

Your travel story starts at one of Sacramento's main airports, Sacramento International Airport (SMF) or Stockton Airport (SCK). Explore the options for booking a flight from Sacramento to Ontario International Airport (ONT) taking off from either of these bases.
Expect to be in the air for 1 hour 25 minutes. On average, that's the duration of a direct Sacramento to Ontario International Airport flight.
Ontario's timezone is UTC-7, which is the same as Sacramento. Ontario International Airport is located in Ontario.
Sacramento International Airport (SMF) to Ontario International Airport (ONT) is the most popular route. There are 24 direct weekly flights to choose from. If you have plans before you fly, hop on the last flight with Southwest Airlines at 9:55pm. Opt for the first SMF to ONT departure with Southwest Airlines at 5:30am if you'd rather get a move on.
Arriving two hours before an international flight and one hour ahead of a domestic departure are travel rules to live by. Be at the airport with enough time to catch your flight from Sacramento to ONT.
Taking off during a peak time like school or public holidays? Expect longer lines at security and check-in. To be on the safe side, arrive up to four hours before international flights and two hours before domestic departures.

Airports in Sacramento

Sacramento International Airport (SMF)

You can book a direct flight from Sacramento to Ontario International Airport (ONT) out of Sacramento International Airport (SMF).
You can get away on a direct flight from Sacramento to Ontario International Airport with Southwest Airlines. This popular carrier offers services from SMF.
The preferred airline for passengers flying between SMF and ONT is Southwest Airlines.
Southwest Airlines leads the way in punctuality. An impressive 86.58% of its departures on this route arrive as planned.
Located around 19 kilometres from the centre of Sacramento, SMF can be reached in about 15 minutes by car (depending on traffic). The journey by public transport is roughly 25 minutes.
Searching for a place to stay before your flight from Sacramento to Ontario International Airport? Check out Holiday Inn Express & Suites Sacramento Airport Natomas. Enjoy a good night's sleep here before making your way to Sacramento International Airport.
Sacramento International Airport has an excellent on-time record, so you're less likely to experience disruptions. Departures from SMF arrive on schedule 82.15% of the time.
You'll find SMF at 6900 Airport Boulevard.

Stockton Airport (SCK)

On public transport, you can travel from central Sacramento to SCK in around 3 hours 20 minutes. The airport is roughly 88 kilometres away, and making the journey by car takes approximately 55 minutes.
Like to add an extra day to your trip? Consider staying at a hotel near Stockton Airport the night before your Sacramento to ONT flight. Holiday Inn Express Stockton Southeast and Hampton Inn by Hilton Stockton will have a room for you.
Looking at how often flights stay on schedule, Stockton Airport has an on-time arrival performance of 55.67%.
The street address for SCK is 5000 South Airport Way, Room 202.

About Ontario International Airport (ONT)

Have a late flight from Sacramento to Ontario International Airport? Don't let it rob you of real rest. Stay at one of these hotels near ONT and hit the pillow fast:
Begin your adventure by picking up an Ontario International Airport rental car. Grab your wheels from Dollar, Fox - Rent A Car or Thrifty and explore beyond Ontario's usual tourist stops.
For the lowest price, book your ride around three weeks ahead of your Sacramento to Ontario International Airport flight.
You'll find ONT at 2900 E. Airport Drive.

Getting from Ontario International Airport (ONT) to central Ontario

Ontario International Airport to central Ontario is roughly 5 kilometres. If you're getting a cab or renting a car, do a little research to make your trip as smooth as possible. Journey times will vary based on the time of day and traffic conditions.
When travelling on public transport, expect a journey time of around 1 hour 30 minutes.

How to find the cheapest flights from Sacramento to Ontario International Airport (ONT)

$111 is the lowest price for a one-way ticket from Sacramento to Ontario International Airport. Return flights start from $221. These prices may change depending on availability and demand.
To snap up cheap flights from Sacramento to ONT, book your ticket four months ahead of your planned departure.
The best month for scoring cheap Sacramento to Ontario International Airport tickets is September. Use the 'Whole month' tool to compare prices, then select the dates that offer the biggest savings.
Finding a cheap flight ticket from Sacramento to ONT is easy with Price Alerts. Simply set up one of these automatic alerts and we'll notify you when prices go down.
Tailor your travel plans using filters. Choose your preferred arrival and departure times, total journey duration and airlines. You can also sort your results by 'Best,' 'Cheapest' or 'Fastest' flights from Sacramento to Ontario International Airport.

The best time to fly from Sacramento to Ontario International Airport (ONT)

Think about the pace you're looking for when planning your trip dates. May is the quietest month to go to Ontario. August is when most people book flights from Sacramento to Ontario International Airport (ONT), which may be perfect if you're after more action.
The warmest month in Ontario is August, with temperatures ranging between 15ºC and 35ºC. Book your Sacramento to ONT flight ticket then if that's your definition of good weather.
If you like cooler conditions, look for a cheap ticket from Sacramento to Ontario International Airport in January when temperatures are between 4ºC and 23ºC.

More about Ontario

When it comes to looking for somewhere to lay your head, you'll find the top stays in Ontario right here. Check out these hotels as soon as you've booked your flight from Sacramento to Ontario International Airport:
You'll find plenty of terrific things to do in Ontario when you're ready to go sightseeing. Kick off your exploring at Conservation Park followed by Citizens Business Bank Arena and Scandia.

Explore more of the United States

You've done Ontario, now it's time to discover more of the United States. Journey about 153 kilometres south to San Diego to tick off its must-visit sights. From San Diego Zoo to San Diego Balboa Park and USS Midway Museum, your itinerary will be busy.
Bakersfield is another sought-after destination in the United States and is around 193 kilometres north-west of Ontario. No journey is complete without dropping by Kern County Museum, Dr. Martin Luther King, Jr. Park and BAPS Shri Swaminarayan Mandir.