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Showing Frontier only (incl. its regional partners)All airlines ×
46 nonstop flights · Aug 2025 – Jul 2026 · US DOT on-time records, all US airlines

No clear winner: Frontier’s ORD → MIA flights land within a few points of 2 in 3 on time whatever the hour.

Flights, best and worst

Flights in the Jun 6 – Jul 31, 2026 schedule that ran 150+ times in the year. Times are local. Pick a flight for its history.

No Frontier flight on this route ran 150+ times in the year.

Nonstops by airline and airport

Arriving within 15 minutes, Aug 2025 – Jul 2026. Pick a row to see that airline’s flights on that airport pair.

Frontier ORD MIA 3h 15m 67% 2.2% 46 Not flying now

Alternatives with one stop

All connections →
FrontierDetails → ORD 06:55 → ATL 10:30F9 1596 3h 59m Atlanta ATL 14:29 → MIA 16:33F9 2272 8h 38m 98% 64%
FrontierDetails → ORD 13:40 → ATL 17:01F9 1442 3h 54m Atlanta ATL 20:55 → MIA 23:05F9 3442 8h 23m 96% 46%
Flying on a particular day? Pick a date above and the same ranking uses our forecast odds for each flight that day: Tomorrow.

About this data: US DOT on-time records, Aug 2025 – Jul 2026, all US airlines; regional flights count under the airline that sells them. Schedules (which flights and connections exist, and their times) are as of Jun 6 – Jul 31, 2026; seasonal flights outside that window aren’t ranked. Rebuilt monthly. JSON