Billings (BIL) to Chicago (ORD): On-Time Performance
Data through July 2026
Billings (BIL) to Chicago (ORD) is a thinner route than most in this dataset — 317 departures over the past year, roughly 6 a week — so treat these numbers as indicative rather than definitive. Of the flights that did operate, 77% arrived on time.
- On-time
- 77%
- arrived <15 min late
- Avg delay
- 21 min
- completed flights
- Cancelled
- 0.2%
- Flights/day
- 0.87
- last 12 months
- Duration
- 2h 54m
- scheduled
- Distance
- 1,060 mi
Best airline from BIL to ORD
2 airlines flew this route regularly between 2024-07 and 2026-07.
| Airline | On-time | Avg delay | Cancelled | Flights |
|---|---|---|---|---|
| SkyWest Airlinesmost reliable | 78% | 13 min | 0.0% | 157 |
| Envoy Air | 77% | 25 min | 0.2% | 442 |
Monthly on-time trend
Best time to fly from BIL to ORD
Aim for departures around 5 a.m. (94% on-time); avoid 12 p.m. departures (73%).
By day of week
| Day | On-time | Avg delay |
|---|---|---|
| Monday | 80% | 11 min |
| Tuesdaybest | 87% | 6 min |
| Wednesday | 70% | 61 min |
| Thursday | 79% | 13 min |
| Friday | 72% | 19 min |
| Saturday | 75% | 27 min |
| Sunday | 79% | 12 min |
What causes delays on this route
Share of total delay minutes by cause, as reported by carriers to the US DOT.
- Late-arriving aircraft15%
- Airline operations60%
- National airspace system17%
- Weather8%
Frequently asked questions
- How often are flights from BIL to ORD delayed?
- 23% of BIL–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 21 minutes.
- Which airline is most reliable from BIL to ORD?
- SkyWest Airlines has the best on-time record on this route at 78%, based on 157 flights. 2 airlines flew BIL–ORD frequently enough to compare in this period.
- What is the best time of day to fly from BIL to ORD?
- Departures around 5 a.m. have the best record (94% on-time), while departures around 12 p.m. have the worst (73%). As on most US routes, delays accumulate through the day, so earlier flights are generally safer.
- How long is the flight from BIL to ORD?
- The scheduled BIL–ORD flight time averages 2h 54m over 1,060 miles. Actual arrival times vary — flights on this route land 15+ minutes late 23% of the time.
- How often are BIL to ORD flights cancelled?
- 0.2% 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 BIL to ORD?
- Tuesday flights have the best record at 87% on-time. Day-of-week differences on this route are meaningful — Wednesday trails at 70%.
Explore related pages
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Related guides
Based on 599 flights, 2024-07–2026-07. Source: US DOT Bureau of Transportation Statistics. Updated 2026-09-28.