F99421 DetroitDTW · 23:30 OrlandoMCO · 01:45
F99421 by Frontier Airlines flies from Detroit (DTW) to Orlando (MCO).
scheduled from DTW
The route today
live boardsWeather lens
Delay & cancellation outlook for this flight
Measured, 90-day sampleConditions at DTW and MCO are near their clear-air norm right now, so this reflects the route's recent baseline rather than a weather penalty. For this route and airline, under conditions like today's, over the last 90 days.
Pro Flight Search tracking, 90 days · the weather × delay correlation study → · live weather risk by airport →
When it flies
scheduled departuresEach mark is a scheduled departure at its origin-local time. Today is highlighted.
Other Detroit to Orlando flights today
same route · Frontier AirlinesIf F99421 is cancelled, these are the other Frontier Airlines nonstop flights from Detroit to Orlando on the same day, with scheduled departure times in DTW local time. Most flights posting a delay still operate — rebooking usually only beats a very large posted delay. Every airline on this route →
How F99421 actually runs
Pro Flight Search has tracked every published board update for F99421 across the DTW and MCO boards: schedule changes, gate pushes and actual clocks. Early read — pattern not clear yet. Only 2 completed legs so far: departed +98 min. Not enough to call it.
The verdict above is that record speaking, so it reflects how F99421 operates rather than what the timetable promises. Numbers refresh as new flights operate.
How this operation is measured
Board log
scheduled → actual, per operationAircraft
Recent tails: N721FR.
Board clocks recorded as DTW and MCO published them.
Planning around F99421? Will a delayed flight be cancelled? · Do planes make up time in the air? · How we measure
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Pro Flight Search — F99421 Detroit to Orlando on-time performance, measured from the DTW and MCO airport boards.
https://proflightsearch.com/flight/F99421
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