The cheapest times to fly from SMF to ONT are

  • January 1st to March 4th
  • August 6th to December 16th (except the weeks of November 19th and November 26th)

based on data collected exclusively by Champion Traveler across tens of millions of flights. Among all the dates above, the very cheapest time to fly from SMF to ONT is mid August. Prices can be as high as $699 for Sunday flights during early to mid May, or as low as $144 for Tuesday flights around mid August.


When to Fly to Ontario

Flying from Sacramento, CA (SMF) to Ontario, CA (ONT) will usually cost between $174 to $520 per person if booking more than four weeks in advance. On average the very cheapest time to fly is mid August with an average ticket price of $201. Due to high demand the most expensive time to fly is early to mid May, with an average price of $479. Planning your trip to low-cost times can easily save you $278 on economy flights and even more on first-class flights. Generally, any price below $306 can be considered a good price for a round-trip SMF to ONT flight.

See below for a graph of average weekly prices for the SMF to ONT route. All prices are for round-trip tickets in USD.

SMF to ONT Flight Prices

Compared to other flights, the SMF to ONT flight is much cheaper than the average and costs much less than the average flight leaving from Sacramento. The average price per mile (for a direct flight) is $0.49, which is above average.


Flight Prices by Day of the Week

Tuesday is usually the cheapest day to depart and return on this flight. Sundays are the most expensive days to fly out or take a return trip. Selecting flights on the least expensive days could save you up to $157 (39%) on this flight.

Departing prices are for round-trip flights returning on the day of departure. For example, a flight departing on Tuesday and returning a week later will cost an average of $241. Return trip prices are from the ONT to SMF flight, and often highlight the quality of our data in showing the same trend.

Departing Prices by Day

Departure Day Prices

Return Trip Prices by Day

Return Day Prices


Nonstop Flights and Layovers

Travelers looking to fly from SMF to ONT can generally find a 0-layover flight. Because there is a direct flight option the real-world direct flight time of 1 hour 41 minutes may be realistic.


Alternative Nearby Airports

Champion Traveler tells you which airports are nearby and whether tickets might be cheaper alternative airports nearby. Sometimes it’s worth it to fly into a closer airport and then commute to your destination. Remember that there is a nonstop flight from SMF to ONT while comparing.

Destination alternative #1: San Diego International Airport (SAN) in San Diego, CA

  • 94 miles (151 km) away from ONT
  • Usually 61.27% less expensive than ONT
  • Nonstop flights available

See SMF to SAN flights

Destination alternative #2: Los Angeles International Airport (LAX) in Los Angeles, CA

  • 47 miles (76 km) away from ONT
  • Usually 51.14% less expensive than ONT
  • Nonstop flights available

See SMF to LAX flights

Destination alternative #3: Long Beach Airport (LGB) in Long Beach, CA

  • 36 miles (58 km) away from ONT
  • Usually 40.20% less expensive than ONT
  • Nonstop flights available

See SMF to LGB flights

Destination alternative #4: John Wayne-Orange County Airport (SNA) in Santa Ana, CA

  • 30 miles (48 km) away from ONT
  • Usually 3.43% less expensive than ONT
  • Nonstop flights available

See SMF to SNA flights

Destination alternative #5: Palm Springs International Airport (PSP) in Palm Springs, CA

  • 65 miles (105 km) away from ONT
  • Usually 5.88% less expensive than ONT
  • Nonstop flights available

See SMF to PSP flights

Destination alternative #6: Bob Hope Airport (BUR) in Burbank, CA

  • 44 miles (71 km) away from ONT
  • Usually 3.27% less expensive than ONT
  • Nonstop flights available

See SMF to BUR flights


Flight Questions Answered

Still have questions about flying from SMF to ONT? We’ve got answers.

Which airlines fly this route?

You can find 6 major airlines flying this route most often: Alaska, American, Delta, Frontier, Southwest, United, and potentially more during busy seasons.

How far away is it from Ontario International Airport to Sacramento International Airport?

The distance between the two airports is roughly 390 miles or 628 kilometers.

How long does it take to fly from SMF to ONT?

The real-world flight time for a nonstop SMF to ONT flight is about 1 hour 41 minutes.

How many flights go between Sacramento, CA and Ontario, CA?

It depends on the day of the week and the date, but a typical day might have around 66 available flights from SMF to ONT.


Airport Location Info


Departing Airport

Origination code SMF
Origination airport name Sacramento International Airport
City Sacramento, CA
Country the United States
Latitude 38.7
Longitude -121.6

Return Airport

Destination code ONT
Destination airport name Ontario International Airport
City Ontario, CA
Country the United States
Latitude 34.1
Longitude -117.6


Late and Early Flight Data

Flights from SMF to ONT tend to depart late far less frequently than the average flight. According to our recently updated data, 19% of flights departed 5 or more minutes late, and 13% of flights left 5 or more minutes early. On average you can expect to leave ONT heading for SMF about 4 minutes late. This does not significantly impact arrival time, as the average landing time in Ontario, CA is about 1 minutes early. The numbers below show a recent average of take-off times versus the scheduled departure flight:

  • Southwest: 4 minutes late
  • Some airlines not reporting


Other Resources

Please note that while we’ve worked hard to analyzed tens of millions of flights to get you this data, we do not calculate current live prices or guarantee pricing. Please see our partners using the links above for current offers.