Miami to Ontario 🇺🇸
Cheapest fare
$145
Fastest
6h 49m
Direct from
No direct
Dates tracked
5
Cheapest fare
$145
Fri, Dec 25 · 1 stop · 6h 49m · Frontier Airlines
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Price calendar
Cheapest round-trip fare by departure day Cheap Average Pricey
October 2026
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Price trend
Price alert
Cheapest day to fly
Tuesday
Averages $366, vs $370 on Saturdays.
Work-hours calculator
This flight to Ontario costs you 9h 40m of work.
Same money as
2
SUV fuel tanks
8
large pizzas
11
cinema tickets
24
fancy coffees
Airlines on this route
Frontier Airlines
from $145 · 5 dates
Destination guide
Discover Ontario
About Ontario
Ontario is a city in southwestern San Bernardino County, California, United States, 35 miles (56 km) east of downtown Los Angeles and 23 miles (37 km) west of downtown San Bernardino, the county seat. Located in the western part of the Inland Empire metropolitan area, it lies just east of Los Angeles County and is part of the Los Angeles metropolitan area. As of the 2020 census, the city had a population of 175,265.
Text from Wikipedia — Ontario, California, licensed CC BY-SA 4.0.
All dates
Every fare, by date
| Departs | Return | Airline | Stops | Price |
|---|---|---|---|---|
| Sat, Oct 24 | Sat, Oct 24 | Frontier Airlines | 1 stop | $487 |
| Tue, Oct 27 | Fri, Oct 30 | Frontier Airlines | 1 stop | $381 |
| Tue, Oct 27 | Tue, Nov 17 | Frontier Airlines | 3 stops | $366 |
| Sat, Nov 14 | Sat, Nov 14 | Frontier Airlines | 2 stops | $252 |
| Fri, Dec 25 | One way | Frontier Airlines |
Also cheap
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FAQ
Miami to Ontario: answers
How much is a flight from Miami to Ontario?+
The cheapest fare we see right now is $145 one way on Fri, Dec 25 with Frontier Airlines.
Are there direct flights from Miami to Ontario?+
We haven't seen a direct fare recently; the best options have 1+ stop.
How long is the flight from Miami to Ontario?+
The fastest itinerary we track takes about 6h 49m door to door.
What is the cheapest day to fly to Ontario?+
Tuesday departures are the cheapest on average right now, Saturday the most expensive.
