Route Reliability
BIL → Chicago
BIL–ORD · 1,060 miles · BIL Airport to Chicago O'Hare International Airport
- 79%
- Arrive within 15 minutes
- 16 min
- Average arrival delay
- 0.2%
- Cancelled
- 430
- Flights in the data
Data through May 2026.
Who flies it best
Ranked by on-time arrivals. Historical results, not predictions.
- 1.United Airlines80%147 flights
- 2.American Airlines79%283 flights
What the data says
Morning-you made the right choice.
BIL–ORD flights departing between 3–6 AM arrived on time 94% of the time, versus 73% between 12–3 PM.
Wednesdays have been rough.
BIL–ORD flights arrived on time 88% of the time on Tuesdays and just 72% on Wednesdays. That gap is worth planning around.
Not much between United Airlines and American Airlines.
On this route they all land within 79% to 80% on time. Pick on schedule and price.
It basically never cancels.
Out of 430 scheduled flights, only 0.2% were cancelled.
Flights on this route
The breakdown
- Mon81%(59 flights)
- Tue88%(60 flights)
- Wed72%(60 flights)
- Thu82%(61 flights)
- Fri76%(62 flights)
- Sat74%(62 flights)
- Sun80%(61 flights)
- 3–6 AM94%(32 flights)
- 6–9 AM88%(90 flights)
- 9 AM–12 PM90%(31 flights)
- 12–3 PM73%(272 flights)
Jun 77% → May 91% on time
| Month | On-time percentage | Flights |
|---|---|---|
| June 2025 | 77% | 81 |
| July 2025 | 70% | 92 |
| August 2025 | 81% | 89 |
| September 2025 | 83% | 90 |
| October 2025 | 85% | 61 |
| May 2026 | 91% | 11 |
Keep nerding
Based on 430 historical flights, because apparently we checked. Historical flight data: U.S. Bureau of Transportation Statistics, June 2025 – May 2026. Data through May 2026. How we calculate this.