Flights from Ontario to Miami

Our cheapest offers for flights from Ontario to Miami

Here you can compare cheap flights from Ontario (ONT) to Miami (MIA) for one-way or return trips. The following offers were searched for and found on idealo during the last few days. Or start your own flight search to Miami. Prices and availability may change at any time.

Outbound Return Airlines Shop Baggage Price
Ontario
Miami
Outbound
10/18/25
1 Stopover (DEN)
F91500, F91280
13h 41min
Return
11/17/25
1 Stopover (DEN)
F91279, F91499
20h 50min
Frontier Airlines
$262
Best option
Ontario
Miami
Outbound
09/04/25
1 Stopover (IAH)
UA1936, UA2105
06h 42min
Return
09/28/25
1 Stopover (DEN)
UA0671, UA0430
07h 32min
United Airlines ?
$360
Ontario
Miami
Outbound
10/18/25
1 Stopover (DEN)
F91500, F91280
13h 41min
Return
11/17/25
1 Stopover (DEN)
F91279, F91499
20h 50min
Frontier Airlines
$273
Ontario
Miami
Outbound
09/04/25
1 Stopover (SFO)
UA0277, UA0410
08h 33min
Return
09/28/25
1 Stopover (DEN)
UA0671, UA0430
07h 32min
United Airlines ?
$361
Ontario
Miami
Outbound
09/04/25
1 Stopover (SFO)
UA0277, UA0410
08h 33min
Return
09/28/25
1 Stopover (DEN)
UA0671, UA0430
07h 32min
United Airlines ?
$380
Ontario
Miami
Outbound
09/04/25
1 Stopover (PHX)
AA1666, AA2054
06h 58min
Return
09/28/25
1 Stopover (PHX)
AA1983, AA2661
06h 59min
American Airlines ?
$389
Ontario
Miami
Outbound
09/19/25
1 Stopover (DEN)
UA0616, UA1356
07h 31min
Return
09/29/25
1 Stopover (IAH)
UA1927, UA1563
08h 03min
United Airlines ?
$397
Ontario
Miami
Outbound
09/19/25
1 Stopover (IAH)
UA1936, UA2105
06h 44min
Return
09/29/25
1 Stopover (DEN)
UA0464, UA1574
07h 58min
United Airlines ?
$411
Ontario
Miami
Outbound
10/18/25
1 Stopover (DEN)
UA1417, UA1356
07h 29min
Return
11/17/25
1 Stopover (IAH)
UA1927, UA1563
07h 40min
United Airlines ?
$417
Ontario
Miami
Outbound
10/18/25
1 Stopover (DEN)
UA1417, UA1356
07h 29min
Return
11/17/25
1 Stopover (IAH)
UA1927, UA1563
07h 40min
United Airlines ?
$418
Prices based on recent searches, subject to last-minute changes
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Tips and tricks to help you find cheap flights from Ontario to Miami

Favorite airline: Frontier Airlines
Most travelers looking for flights on the route from Ontario to Miami decide to book flights with Frontier Airlines.
Frontier Airlines
82 %
United Airlines
13 %
Delta
2 %
Cheapest weekday: Tuesday
Flight tickets are cheapest on Tuesday. Flights on these weekdays cost up to 32 % less.
Favourite connection: via Denver
On this route, flights with a stopover in Denver are the most popular.
Route
bookings
1 stopover Denver International Airport, CO
29h 54min, from $211
50 %
1 stopover Dallas-Fort Worth International Airport, T
13h 40min, from $322
36 %
1 stopover Houston - George Bush Intercontinental Airport, TX
08h 45min, from $404
11 %

Important flight information

Flight information: Ontario - Miami

Roundtrip from $261.41
Distance 3693 km
Departure airport Airport Ontario-CA (ONT)
Arrival airport Airport Miami International Airport, FL (MIA)
Destination country Flights to United States
Alternative routes to United States
Alternative flights to Miami
Flight destinations with a similar price