Route
BZN → ORD
Bozeman Yellowstone International Airport Chicago O'Hare International Airport
How punctual is this route?
- On-time arrivals
- 73.2%
- Less than 15 minutes late
- Cancelled
- 0.9%
- Of scheduled flights
- Average delay when late
- 92 min
- Flights arriving 15+ minutes late
- Flights tracked
- 1,251
- Scheduled flights in the period
What caused the delays
- Air traffic control & airport 39%
- Late-arriving aircraft 37%
- Airline (crew, maintenance, cleaning) 21%
- Extreme weather 3%
- Security 0%
Share of delay minutes airlines attributed to each cause (BTS).
Show as table
| Month | On time | Flights |
|---|---|---|
| September 2025 | 76.7% | 133 |
| October 2025 | 83.3% | 115 |
| November 2025 | 67.7% | 31 |
| December 2025 | 67.5% | 83 |
| January 2026 | 68.6% | 103 |
| February 2026 | 80.0% | 96 |
| March 2026 | 71.7% | 116 |
| April 2026 | 68.9% | 47 |
| May 2026 | 87.2% | 95 |
| June 2026 | 71.1% | 150 |
| July 2026 | 65.8% | 154 |
| August 2026 | 68.0% | 128 |
Source: U.S. DOT Bureau of Transportation Statistics on-time data, September 2025 – August 2026. Covers flights operated by reporting U.S. carriers. About our data
Airlines on this route
| Airline | Flights | On time | Cancelled | Avg. delay when late |
|---|---|---|---|---|
| United Airlines | 720 | 77.6% | 1.0% | 96 min |
| American Airlines | 444 | 66.4% | 0.9% | 91 min |
| SkyWest Airlines | 46 | 69.6% | 0.0% | 57 min |
| Envoy Air | 41 | 75.6% | 0.0% | 75 min |
Delay odds by flight
How often each flight number arrived 15 or more minutes late over the last year.
-
UA2202
24% late · 341 flights
-
UA1693
11% late · 183 flights
-
UA1744
40% late · 81 flights
-
AA1639
31% late · 76 flights
-
AA3177
37% late · 76 flights
-
AA1501
39% late · 62 flights
-
AA464
16% late · 39 flights
-
AA2361
41% late · 35 flights
-
AA3246
20% late · 30 flights
-
AA961
45% late · 30 flights
-
OO5998
28% late · 29 flights
-
AA871
37% late · 27 flights
-
AA558
12% late · 25 flights
-
AA2499
50% late · 24 flights
-
UA2138
8% late · 24 flights
-
UA554
17% late · 24 flights
-
MQ3801
18% late · 22 flights
-
UA1069
20% late · 21 flights
-
UA482
48% late · 21 flights
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