Route
BOI → ORD
Boise Air Terminal/Gowen Field Chicago O'Hare International Airport
How punctual is this route?
- On-time arrivals
- 74.9%
- Less than 15 minutes late
- Cancelled
- 1.2%
- Of scheduled flights
- Average delay when late
- 98 min
- Flights arriving 15+ minutes late
- Flights tracked
- 1,111
- Scheduled flights in the period
What caused the delays
- Late-arriving aircraft 31%
- Airline (crew, maintenance, cleaning) 27%
- Air traffic control & airport 27%
- Extreme weather 15%
- Security 0%
Share of delay minutes airlines attributed to each cause (BTS).
Show as table
| Month | On time | Flights |
|---|---|---|
| September 2025 | 72.5% | 91 |
| October 2025 | 84.8% | 92 |
| November 2025 | 68.2% | 88 |
| December 2025 | 71.8% | 104 |
| January 2026 | 79.4% | 98 |
| February 2026 | 90.5% | 84 |
| March 2026 | 75.3% | 93 |
| April 2026 | 65.6% | 91 |
| May 2026 | 79.3% | 93 |
| June 2026 | 75.0% | 91 |
| July 2026 | 71.6% | 93 |
| August 2026 | 65.6% | 93 |
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 |
|---|---|---|---|---|
| SkyWest Airlines | 507 | 82.9% | 2.2% | 85 min |
| United Airlines | 244 | 75.5% | 0.8% | 97 min |
| American Airlines | 208 | 63.5% | 0.0% | 105 min |
| Envoy Air | 152 | 63.8% | 0.0% | 112 min |
Delay odds by flight
How often each flight number arrived 15 or more minutes late over the last year.
-
OO5386
16% late · 313 flights
-
OO4806
17% late · 170 flights
-
MQ4324
36% late · 152 flights
-
AA2340
33% late · 76 flights
-
UA573
19% late · 54 flights
-
UA440
33% late · 47 flights
-
AA2116
39% late · 44 flights
-
UA323
29% late · 36 flights
-
UA451
32% late · 35 flights
-
AA2262
39% late · 33 flights
-
UA348
7% late · 30 flights
-
AA1792
44% late · 27 flights
-
AA2353
27% late · 26 flights
-
UA744
43% late · 21 flights
-
UA1105
5% late · 20 flights
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