Bismarck/Mandan (BIS) to Chicago (ORD): On-Time Performance
Data through July 2026
Bismarck/Mandan (BIS) to Chicago (ORD) is a thinner route than most in this dataset — 274 departures over the past year, roughly 5 a week — so treat these numbers as indicative rather than definitive. Of the flights that did operate, 73% arrived on time.
- On-time
- 73%
- arrived <15 min late
- Avg delay
- 22 min
- completed flights
- Cancelled
- 0.3%
- Flights/day
- 0.75
- last 12 months
- Duration
- 2h 21m
- scheduled
- Distance
- 715 mi
Monthly on-time trend
Best time to fly from BIS to ORD
By day of week
| Day | On-time | Avg delay |
|---|---|---|
| Monday | 67% | 26 min |
| Tuesdaybest | 81% | 10 min |
| Wednesday | 70% | 22 min |
| Thursday | 75% | 30 min |
| Friday | 77% | 19 min |
| Saturday | 77% | 19 min |
| Sunday | 66% | 25 min |
What causes delays on this route
Share of total delay minutes by cause, as reported by carriers to the US DOT.
- Late-arriving aircraft47%
- Airline operations12%
- National airspace system21%
- Weather19%
- Security1%
Frequently asked questions
- How often are flights from BIS to ORD delayed?
- 27% of BIS–ORD flights arrived 15 or more minutes late (the US DOT definition of a delay) between 2024-07 and 2026-07. The average arrival delay across completed flights was 22 minutes.
- How long is the flight from BIS to ORD?
- The scheduled BIS–ORD flight time averages 2h 21m over 715 miles. Actual arrival times vary — flights on this route land 15+ minutes late 27% of the time.
- How often are BIS to ORD flights cancelled?
- 0.3% of scheduled flights on this route were cancelled between 2024-07 and 2026-07, at or below the national rate of 1.6%.
- What day of the week is most reliable for BIS to ORD?
- Tuesday flights have the best record at 81% on-time. Day-of-week differences on this route are meaningful — Sunday trails at 66%.
Explore related pages
More routes from BIS
Other ways to fly to Chicago (ORD)
Related guides
Based on 331 flights, 2024-07–2026-07. Source: US DOT Bureau of Transportation Statistics. Updated 2026-09-28.