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
Best option
Ontario
Miami
Outbound
02/04/26
1 Stopover (ATL)
DL0665, DL1589
08h 57min
Return
02/11/26
1 Stopover (ATL)
DL1332, DL0779
10h 11min
Delta Air Lines ?
$340
Ontario
Miami
Outbound
12/01/25
1 Stopover (ATL)
DL0828, DL2836
07h 24min
Return
12/02/25
1 Stopover (ATL)
DL1579, DL0779
10h 06min
Delta Air Lines ?
$472
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 339,98 $
Distance 3693 km
Departure airport Airport Ontario-CA (ONT)
Arrival airport Airport Miami International Airport, FL (MIA)
Destination country Flights to United States
Alternative flights to Miami
Flight destinations with a similar price