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Cheap Flights from Sacramento to Ontario International

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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.118 € per passenger.Departing Mon, 18 Aug, returning Mon, 18 Aug.Return flight with Southwest Airlines.Outbound direct flight with Southwest Airlines departs from Sacramento International on Mon, 18 Aug, arriving in Ontario International.Inbound direct flight with Southwest Airlines departs from Ontario International on Mon, 18 Aug, arriving in Sacramento International.Price includes taxes and charges.From 118 €, select.
Ontario.118 € per passenger.Departing Thu, 2 Oct, returning Mon, 6 Oct.Return flight with Southwest Airlines.Outbound direct flight with Southwest Airlines departs from Sacramento International on Thu, 2 Oct, arriving in Ontario International.Inbound direct flight with Southwest Airlines departs from Ontario International on Mon, 6 Oct, arriving in Sacramento International.Price includes taxes and charges.From 118 €, select.
Ontario.119 € per passenger.Departing Tue, 26 Aug, returning Wed, 10 Sep.Return flight with Southwest Airlines.Outbound direct flight with Southwest Airlines departs from Sacramento International on Tue, 26 Aug, arriving in Ontario International.Inbound direct flight with Southwest Airlines departs from Ontario International on Wed, 10 Sep, arriving in Sacramento International.Price includes taxes and charges.From 119 €, select.
Ontario.124 € per passenger.Departing Sat, 6 Sep, returning Wed, 10 Sep.Return flight with Southwest Airlines.Outbound direct flight with Southwest Airlines departs from Sacramento International on Sat, 6 Sep, arriving in Ontario International.Inbound direct flight with Southwest Airlines departs from Ontario International on Wed, 10 Sep, arriving in Sacramento International.Price includes taxes and charges.From 124 €, select.
Ontario.125 € per passenger.Departing Mon, 3 Nov, returning Sat, 15 Nov.Return flight with Southwest Airlines.Outbound direct flight with Southwest Airlines departs from Sacramento International on Mon, 3 Nov, arriving in Ontario International.Inbound direct flight with Southwest Airlines departs from Ontario International on Sat, 15 Nov, arriving in Sacramento International.Price includes taxes and charges.From 125 €, select.
Ontario.141 € per passenger.Departing Mon, 22 Sep, returning Sat, 11 Oct.Return flight with Southwest Airlines.Outbound indirect flight with Southwest Airlines, departs from Sacramento International on Mon, 22 Sep, arriving in Ontario International.Inbound indirect flight with Southwest Airlines, departs from Ontario International on Sat, 11 Oct, arriving in Sacramento International.Price includes taxes and charges.From 141 €, select.
Ontario.153 € per passenger.Departing Wed, 16 Jul, returning Wed, 23 Jul.Return flight with Southwest Airlines.Outbound direct flight with Southwest Airlines departs from Sacramento International on Wed, 16 Jul, arriving in Ontario International.Inbound direct flight with Southwest Airlines departs from Ontario International on Wed, 23 Jul, arriving in Sacramento International.Price includes taxes and charges.From 153 €, select.
Ontario.156 € per passenger.Departing Mon, 23 Jun, returning Wed, 25 Jun.Return flight with Frontier Airlines.Outbound indirect flight with Frontier Airlines, departs from Sacramento International on Mon, 23 Jun, arriving in Ontario International.Inbound indirect flight with Frontier Airlines, departs from Ontario International on Wed, 25 Jun, arriving in Sacramento International.Price includes taxes and charges.From 156 €, select.

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 August.
Jun
from 156 €
Jul
from 153 €
Aug
from 118 €
Sep
from 124 €
Oct
from 118 €
Nov
from 125 €
Dec
from 249 €
Jan
from 223 €
Feb
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Mar
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Apr
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May
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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.

Sacramento to Ontario: Flight information

The things to know before you go.
Cheapest flight found118 €
Cheapest month to flyAugust
Average flight time1 hr, 23 mins
Most popular airlineSouthwest Airlines
Average flights per week46

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

The best price we found for a return flight from Sacramento to Ontario International is 118 €. 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.
1 hour and 23 minutes is the average flight time from Sacramento to Ontario International.
Southwest Airlines flies direct from Sacramento to Ontario International.
As of June 2025, there are 46 flights per week flying from Sacramento to Ontario International.
The cheapest month to fly from Sacramento to Ontario International is usually June 2025.
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, 18 August 2025.
Yes – the average flight time is 1 hour and 23 minutes.
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.
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.
The cheapest airline that flies to Ontario International is Southwest Airlines .

Travelling from Sacramento to Ontario International Airport (ONT): what you need to know

  • All great adventures start at one of Sacramento's main airports, Sacramento International Airport (SMF) or Stockton Airport (SCK). Explore your options for booking a flight from Sacramento to Ontario International Airport (ONT) departing from either of these.

  • Jump on a direct flight from Sacramento to Ontario International Airport and you'll be travelling for around 1 hour 23 minutes.

  • Sacramento and Ontario (where Ontario International Airport is located) share the UTC-7 timezone. That means you won't have to adjust your watch when you land.

  • Sacramento International Airport (SMF) to Ontario International Airport (ONT) is the most popular route. There are 31 direct weekly departures to choose from. If you prefer a later start to the day, take the last flight with Southwest Airlines at 22:10. Opt for the first SMF to ONT departure with Southwest Airlines at 05:45 if you want to get going earlier.

  • Arrive at the airport on time so you don't miss your flight from Sacramento to ONT. Be there at least two hours ahead for international flights and an hour early for domestic departures to avoid the stress of rushing.

  • With more travellers during peak months like August, get to the terminal earlier than usual. Two hours for domestic flights and up to four for international journeys will help you deal with any delays. Remember things also get busy during major holidays like Fourth of July.

Airports in Sacramento

Sacramento International Airport (SMF)

  • You can jump on a direct flight from Sacramento to Ontario International Airport (ONT) departing from Sacramento International Airport (SMF).

  • If you plan to leave from SMF, you can catch a direct flight from Sacramento to Ontario International Airport with Frontier Airlines.

  • SMF is approximately 19 kilometres from the centre of Sacramento. To work out how to get there, use Google Maps. This handy travel app will give you the best route and available public transport options.

  • Get your flight from Sacramento to Ontario International Airport off to a relaxed start. Only a short drive from Sacramento International Airport, spend the night at Holiday Inn Express & Suites Sacramento Airport Natomas and you'll be well-rested for the journey ahead.

About Ontario International Airport (ONT)

Getting from Ontario International Airport (ONT) to central Ontario

  • From Ontario International Airport, Ontario is approximately 6 kilometres away. It takes around 10 minutes to reach the centre driving.

  • If you're travelling on public transport, expect a journey of around 1 hour and 28 minutes.

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

  • For a one-way ticket from Sacramento to Ontario International Airport, 59 € is the best price we've seen. You can also book a return trip starting from 118 €. These are the lowest fares right now and may vary depending on availability.

  • Don't leave things to the last moment. You're more likely to get cheap tickets from Sacramento to ONT if you book ahead. Airlines often have some fantastic early bird deals.

  • If you're flexible with your travel dates, check out the 'Whole month' tool. It'll give you the lowest price across every month when searching for your ticket from Sacramento to Ontario International Airport.

  • Set up a Price Alert and track any changes on this route through push notifications or email. You'll be the first to know when prices fall. Good timing makes all the difference when searching for cheap tickets from Sacramento to ONT.

  • Customise your journey by applying filters. Choose the duration, number of stops, and arrival and departure times to find the ideal flight from Sacramento to Ontario International Airport. You can also sort the results to see the 'Cheapest,' 'Best' or 'Fastest' options first.

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

  • It's time to figure out your trip dates for your flight from Sacramento to Ontario International Airport. August is the busiest month for a trip to Ontario. If you want a quieter vibe, go in May.

  • Schedule your flight from Sacramento to ONT for August if you're eager to head to the city during its warmest month. Expect temperatures in Ontario to range from 15ºC to 35ºC.

  • Search for cheap flights from Sacramento to Ontario International Airport in January if you want to travel in cooler conditions. Temperatures are at their lowest around then, ranging between 4ºC and 23ºC on average.

More about Ontario

  • After booking your flight from Sacramento to Ontario International Airport, think about where you'd like to stay in this city. Make one of these accommodation options your base for exploring Ontario:

  • Every great journey has to include a little sightseeing. Graber Olive House, Anthony Munoz Park and James R. Bryant Dog Park are essential stops on your Ontario itinerary.

Complete your Ontario trip with a car rental

  • We use the same magic that helped you find your cheap flight from Sacramento to Ontario International Airport to track down your perfect ride. Check out our car rentals in Ontario and compare your options in one place. Plus you'll find all the info you need to know, from the most popular rental company to the average daily price.

Plan the rest of your trip from Sacramento to Ontario

Prices shown on this page are estimated lowest prices only. Found in the last 45 days.