Chicago (ORD) to Bismarck/Mandan (BIS): On-Time Performance
Data through July 2026
Chicago (ORD) to Bismarck/Mandan (BIS) 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, 84% arrived on time, comfortably above the national average of 78%.
- On-time
- 84%
- arrived <15 min late
- Avg delay
- 10 min
- completed flights
- Cancelled
- 0.0%
- Flights/day
- 0.75
- last 12 months
- Duration
- 2h 32m
- scheduled
- Distance
- 715 mi
Monthly on-time trend
Best time to fly from ORD to BIS
By day of week
| Day | On-time | Avg delay |
|---|---|---|
| Mondaybest | 87% | 9 min |
| Tuesday | 83% | 10 min |
| Wednesday | 83% | 12 min |
| Thursday | 85% | 5 min |
| Friday | 83% | 14 min |
| Saturday | 85% | 7 min |
| Sunday | 83% | 14 min |
What causes delays on this route
Share of total delay minutes by cause, as reported by carriers to the US DOT.
- Late-arriving aircraft39%
- Airline operations22%
- National airspace system23%
- Weather16%
Frequently asked questions
- How often are flights from ORD to BIS delayed?
- 16% of ORD–BIS 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 10 minutes.
- How long is the flight from ORD to BIS?
- The scheduled ORD–BIS flight time averages 2h 32m over 715 miles. Actual arrival times vary — flights on this route land 15+ minutes late 16% of the time.
- How often are ORD to BIS flights cancelled?
- 0% 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 ORD to BIS?
- Monday flights have the best record at 87% on-time. Day-of-week differences on this route are modest.
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Related guides
Based on 331 flights, 2024-07–2026-07. Source: US DOT Bureau of Transportation Statistics. Updated 2026-09-28.