FlightRecord

Bozeman (BZN) to Chicago (MDW): On-Time Performance

Data through May 2026

Bozeman (BZN) to Chicago (MDW) is a thinner route than most in this dataset — 119 departures over the past year, roughly 2 a week — so treat these numbers as indicative rather than definitive. Of the flights that did operate, 85% arrived on time, comfortably above the national average of 78%.

On-time
85%
arrived <15 min late
Avg delay
8 min
completed flights
Cancelled
0.0%
Flights/day
0.33
last 12 months
Duration
2h 54m
scheduled
Distance
1,198 mi

Monthly on-time trend

Monthly on-time percentage for BZN to MDW flights50%75%100%June 2024: 82% on-time (27 flights)82Jun 2024July 2024: 65% on-time (31 flights)65August 2024: 94% on-time (31 flights)94September 2024: 87% on-time (30 flights)87Sep 2024October 2024: 100% on-time (2 flights)100June 2025: 96% on-time (26 flights)96July 2025: 74% on-time (31 flights)74Jul 2025August 2025: 87% on-time (31 flights)87September 2025: 93% on-time (30 flights)93October 2025: 100% on-time (1 flights)100Oct 2025

Best time to fly from BZN to MDW

On-time percentage by scheduled departure hour, BZN to MDW6 a.m.: 100% on-time (27 flights)611 a.m.: 83% on-time (24 flights)1112 p.m.: 86% on-time (103 flights)122 p.m.: 73% on-time (26 flights)143 p.m.: 70% on-time (40 flights)15scheduled departure hour

By day of week

DayOn-timeAvg delay
Monday74%10 min
Tuesday83%13 min
Wednesday83%9 min
Thursday88%9 min
Friday82%9 min
Saturdaybest94%3 min
Sunday88%3 min

What causes delays on this route

Share of total delay minutes by cause, as reported by carriers to the US DOT.

  • Late-arriving aircraft60%
  • Airline operations17%
  • National airspace system23%

Frequently asked questions

How often are flights from BZN to MDW delayed?
15% of BZN–MDW flights arrived 15 or more minutes late (the US DOT definition of a delay) between 2024-06 and 2026-05. The average arrival delay across completed flights was 8 minutes.
How long is the flight from BZN to MDW?
The scheduled BZN–MDW flight time averages 2h 54m over 1,198 miles. Actual arrival times vary — flights on this route land 15+ minutes late 15% of the time.
How often are BZN to MDW flights cancelled?
0% of scheduled flights on this route were cancelled between 2024-06 and 2026-05, at or below the national rate of 1.6%.
What day of the week is most reliable for BZN to MDW?
Saturday flights have the best record at 94% on-time. Day-of-week differences on this route are meaningful — Monday trails at 74%.

Based on 240 flights, 2024-062026-05. Source: US DOT Bureau of Transportation Statistics. Updated 2026-07-01.