Route
ORD → BZN
Chicago O'Hare International Airport Bozeman Yellowstone International Airport
How punctual is this route?
- On-time arrivals
- 68.2%
- Less than 15 minutes late
- Cancelled
- 0.6%
- Of scheduled flights
- Average delay when late
- 70 min
- Flights arriving 15+ minutes late
- Flights tracked
- 1,252
- Scheduled flights in the period
What caused the delays
- Late-arriving aircraft 45%
- Air traffic control & airport 26%
- Airline (crew, maintenance, cleaning) 22%
- Extreme weather 6%
- Security 0%
Share of delay minutes airlines attributed to each cause (BTS).
Show as table
| Month | On time | Flights |
|---|---|---|
| September 2025 | 80.3% | 133 |
| October 2025 | 67.5% | 114 |
| November 2025 | 86.7% | 31 |
| December 2025 | 57.8% | 84 |
| January 2026 | 57.8% | 104 |
| February 2026 | 66.7% | 96 |
| March 2026 | 50.9% | 115 |
| April 2026 | 74.5% | 48 |
| May 2026 | 80.0% | 95 |
| June 2026 | 73.2% | 150 |
| July 2026 | 71.3% | 154 |
| August 2026 | 63.0% | 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 | 71.6% | 0.6% | 75 min |
| American Airlines | 445 | 63.9% | 0.7% | 67 min |
| SkyWest Airlines | 46 | 68.9% | 0.0% | 74 min |
| Envoy Air | 41 | 55.0% | 0.0% | 33 min |
Delay odds by flight
How often each flight number arrived 15 or more minutes late over the last year.
-
UA224
19% late · 285 flights
-
UA533
44% late · 126 flights
-
UA623
24% late · 103 flights
-
AA1639
38% late · 76 flights
-
AA1645
30% late · 76 flights
-
UA481
35% late · 55 flights
-
AA463
62% late · 40 flights
-
AA1501
23% late · 35 flights
-
AA2361
35% late · 35 flights
-
AA2528
47% late · 30 flights
-
AA3246
13% late · 30 flights
-
AA1221
41% late · 27 flights
-
AA863
22% late · 27 flights
-
AA1046
46% late · 24 flights
-
AA2499
46% late · 24 flights
-
UA775
12% late · 24 flights
-
MQ3801
55% late · 22 flights
-
UA1965
43% late · 21 flights
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