OnTimeRoutes
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Spirit Airlines MIA to ORD on-time performance

Spirit Airlines nonstop flights from Miami to Chicago · Aug 2025 – Jul 2026

On-time arrivals
63%
arrived < 15 min late
Cancelled
6.6%
21 flights
Avg arrival delay
24 min
63 min when late
Rank on route
#4 of 4
route average 71% on time

Key facts

  • Spirit Airlines flights on MIA to ORD arrived on time 63% of the time in Aug 2025 – Jul 2026.
  • 6.6% were cancelled, and 12% arrived an hour or more late.
  • That ranks #4 of 4 airlines on this route, which averaged 71% on time overall.
  • The largest source of delay minutes was air traffic control & airport congestion (55%).

On-time trend by month

30%65%100%July 2025: 65.5% on time, 0.0% cancelledJul ’25August 2025: 82.8% on time, 0.0% cancelledAug ’25September 2025: 100.0% on time, 0.0% cancelledSep ’25October 2025: 88.2% on time, 0.0% cancelledOct ’25November 2025: 91.3% on time, 4.2% cancelledNov ’25December 2025: 66.7% on time, 12.9% cancelledDec ’25January 2026: 58.1% on time, 10.2% cancelledJan ’26February 2026: 40.0% on time, 2.4% cancelledFeb ’26March 2026: 42.9% on time, 12.5% cancelledMar ’26April 2026: 42.9% on time, 7.9% cancelledApr ’26May 2026: 100.0% on time, 0.0% cancelledMay ’26
On-time arrival rate by month. Hover a bar for exact figures.

Why this airline's flights were late

  • Air traffic control & airport congestion55%
  • Airline (crew, maintenance, cleaning, fueling)32%
  • Late-arriving aircraft13%
  • Security0%
  • Extreme weather0%

Other airlines on MIA to ORD

Full MIA to ORD comparison →
Spirit Airlines on-time record across all routes →

317 Spirit Airlines flights tracked on this route; 21 cancelled, 4 diverted.

Data: U.S. DOT Bureau of Transportation Statistics, Aug 2025 – Jul 2026 (12 months). Latest month published by BTS: July 2026. How we calculate this.