The cheapest times to fly from MIA to ONT are
- January 8th to February 11th
- April 23rd to May 6th
- May 21st to June 3rd
- August 6th to November 18th
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 MIA to ONT is mid to late September. Prices can be as high as $1445 for Sunday flights during early to mid March, or as low as $274 for Tuesday flights around mid to late September.
When to Fly to Ontario
Flying from Miami, FL (MIA) to Ontario, CA (ONT) will usually cost between $299 to $724 per person if booking more than four weeks in advance. On average the very cheapest time to fly is mid to late September with an average ticket price of $316. Due to high demand the most expensive time to fly is early to mid March, with an average price of $656. Planning your trip to low-cost times can easily save you $340 on economy flights and even more on first-class flights. Generally, any price below $400 can be considered a good price for a round-trip MIA to ONT flight.
See below for a graph of average weekly prices for the MIA to ONT route. All prices are for round-trip tickets in USD.
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Compared to other flights, the MIA to ONT flight is much cheaper than the average and costs much less than the average flight leaving from Miami. The average price per mile (for a direct flight) is $0.11, which is far below 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 $186 (34%) 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 $357. Return trip prices are from the ONT to MIA flight, and often highlight the quality of our data in showing the same trend.
Departing Prices by Day
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Return Trip Prices by Day
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Nonstop Flights and Layovers
Travelers looking to fly from MIA to ONT can generally find a 1-layover flight. Because there is not usually a direct flight option the real-world direct flight time of 5 hour 6 minutes may not 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 not usually a nonstop flight from MIA to ONT while comparing.
- 47 miles (76 km) away from ONT
- Usually 17.63% less expensive than ONT
- Nonstop flights available
- 94 miles (151 km) away from ONT
- Usually 12.50% less expensive than ONT
- Nonstop flights available
- 44 miles (71 km) away from ONT
- Usually 4.50% less expensive than ONT
- 1-layover flights available
- 30 miles (48 km) away from ONT
- Usually 2.75% less expensive than ONT
- 1-layover flights available
Flight Questions Answered
Still have questions about flying from MIA to ONT? We’ve got answers.
Which airlines fly this route?
You can find 5 major airlines flying this route most often: Alaska, American, Delta, Frontier, United, and potentially more during busy seasons.
How far away is it from Ontario International Airport to Miami International Airport?
The distance between the two airports is roughly 2292 miles or 3689 kilometers.
How long does it take to fly from MIA to ONT?
The real-world flight time for a nonstop MIA to ONT flight is about 5 hour 6 minutes.
How many flights go between Miami, FL and Ontario, CA?
It depends on the day of the week and the date, but a typical day might have around 97 available flights from MIA to ONT.
Airport Location Info
Departing Airport
Origination code | MIA |
Origination airport name | Miami International Airport |
City | Miami, FL |
Country | the United States |
Latitude | 25.8 |
Longitude | -80.3 |
Return Airport
Destination code | ONT |
Destination airport name | Ontario International Airport |
City | Ontario, CA |
Country | the United States |
Latitude | 34.1 |
Longitude | -117.6 |
Other Resources
Flights to ONT
Flights from ONT
Popular Flights
Flights to MIA
Flights from MIA
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.