MIA (Miami) to ORD (Chicago) flights arrive on time 75% of the time. The most reliable airline on this route is Spirit Airlines at 76%. The average delay is 72 minutes. Delays on this route are most often caused by the incoming plane arriving late.
Source: Bureau of Transportation Statistics. Updated July 2026.MIA → ORD
MIA (Miami) to ORD (Chicago)
MIA → ORD on-time performance by month
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This route is on time most of the time. About 75% of flights arrive on schedule.
Delays on this route are most often caused by the incoming plane arriving late.
Accurate?
Spirit Airlines edges out Frontier Airlines on this route — 76% vs 68% on time.
Airline Comparison
Spirit Airlines leads at 76% on time; Frontier Airlines trails at 68%.
Accurate?
Good to know
Departing from MIA
76% on timeExpect ~20 min sitting on the taxiway after your gate pushes back. MIA has long runway queues.
TSA is currently ~29 min. Best time: 4 AM (about 5 min).
Arriving at ORD
75% on timeWhen flights into ORD are late, the average delay is 79 minutes. Build buffer if you have ground plans.
If connecting at ORD: TSA is ~18 min right now. Allow at least 60 minutes for a domestic connection.
Flight cancelled or delayed?
Check what Spirit Airlines owes you — refund rights, action plan, complaint email. Free.
Flying out of MIA? We'll brief you.
Delays, TSA, weather, gates — we'll let you know if something matters.
Know someone flying soon?
Send them the link — delay data, TSA waits, weather, all free.
Data last updated July 2026. Source: Bureau of Transportation Statistics.