Route · ORD → BOI · 2020–2025 BTS data
Chicago to Boise
The ORD–BOI corridor (Chicago, IL → Boise, ID) runs ahead of the national average, served by 21 carriers across roughly 1,437 miles.
Data updated 2026-06-13
- 81.1%
- On-time
- +2.1 pts
- vs US avg
- 64 min
- Delay when late
- 5,089
- Flights
Cancelled
0.6%
Best Month
Oct 2024 86%
Worst Month
Dec 2025 42%
Distance
1,437 mi
Carriers
21
Monthly Performance
Recent 24 months of route data.
| Period | Flights | Delayed | Cancelled | Diverted | Carriers |
|---|---|---|---|---|---|
| Dec 2025 | 106 | 61 | 1 | 2 | MQ,UA,OO |
| Nov 2025 | 88 | 24 | 2 | 2 | OO,UA,MQ,AA |
| Oct 2025 | 92 | 18 | 0 | 0 | AA,OO,UA |
| Sep 2025 | 90 | 13 | 0 | 0 | UA,OO,AA |
| Aug 2025 | 93 | 24 | 1 | 0 | AA,OO,MQ,UA |
| Jul 2025 | 93 | 27 | 0 | 0 | OO,UA,MQ |
| Jun 2025 | 86 | 19 | 0 | 0 | OO,UA,MQ |
| May 2025 | 62 | 14 | 0 | 0 | OO,UA |
| Apr 2025 | 60 | 9 | 0 | 0 | OO |
| Mar 2025 | 62 | 15 | 0 | 0 | OO |
| Feb 2025 | 51 | 12 | 0 | 2 | OO |
| Jan 2025 | 52 | 11 | 0 | 0 | OO |
| Dec 2024 | 64 | 18 | 0 | 0 | OO |
| Nov 2024 | 59 | 13 | 0 | 0 | OO |
| Oct 2024 | 63 | 9 | 0 | 0 | OO |
| Sep 2024 | 60 | 13 | 0 | 0 | OO |
| Aug 2024 | 63 | 19 | 0 | 0 | OO,UA |
| Jul 2024 | 62 | 18 | 1 | 0 | OO,UA |
| Jun 2024 | 60 | 23 | 1 | 0 | OO,UA |
| May 2024 | 62 | 21 | 2 | 0 | OO,UA |
| Apr 2024 | 30 | 4 | 0 | 0 | OO |
| Mar 2024 | 31 | 5 | 0 | 1 | OO |
| Feb 2024 | 30 | 5 | 0 | 0 | OO |
| Jan 2024 | 31 | 5 | 2 | 0 | OO,UA |
Cancellation Rate
0.6%
10 of 1,550 flights
Diversion Rate
0.5%
7 of 1,550 flights
Explore origin & destination
On-time and delay data for the airports this route connects.
ORD - Chicago
Full on-time, delay-cause, and seasonal performance for Chicago, IL.
Origin airport →BOI - Boise
Full on-time, delay-cause, and seasonal performance for Boise, ID.
Destination airport →Compare the two airports
See ORD and BOI side by side on delays, cancellations, and reliability.
Open comparison tool →Similar routes
Other BTS-tracked routes with comparable performance or trip length to ORD–BOI.
Routes with a similar on-time rate
What the Data Says About ORD to BOI
5,089 tracked flights put the ORD to BOI pairing (Chicago to Boise) at a 81.1% on-time rate, squarely in line with the wider network. Delays that do occur run 64.3 minutes on average. Across the 1,437-mile route and its 21 carriers, the trailing 24 months show 0.6% cancelled and 0.5% diverted (1,550 flights sampled).
The monthly split is wide on this route: Oct 2024 posted the strongest performance at 86% on-time, while Dec 2025 came in at just 42% - a 43-point swing worth factoring into travel timing.
Frequently Asked Questions
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Data source
Data Source: Bureau of Transportation Statistics (BTS), On-Time Performance Data. Statistics reflect cumulative performance across all available reporting periods.
Read our methodology - how this data is sourced, computed, and verified.
Every figure on PlainFlights is rendered directly from BTS On-Time Performance data, no number is typed in by an editor. This page aggregates this specific route's on-time performance and monthly trend, live from the dataset. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error.