Route · ORD → GSP · 2020–2025 BTS data
Chicago to Greer
The ORD–GSP corridor (Chicago, IL → Greer, SC) runs ahead of the national average, served by 26 carriers across roughly 577 miles.
Data updated 2026-06-13
- 79.6%
- On-time
- +0.6 pts
- vs US avg
- 74 min
- Delay when late
- 6,594
- Flights
Cancelled
2.1%
Best Month
Feb 2024 89%
Worst Month
Jun 2025 60%
Distance
577 mi
Carriers
26
Monthly Performance
Recent 24 months of route data.
| Period | Flights | Delayed | Cancelled | Diverted | Carriers |
|---|---|---|---|---|---|
| Dec 2025 | 140 | 46 | 6 | 0 | YX,OH,MQ,OO |
| Nov 2025 | 165 | 39 | 18 | 2 | OO,MQ,OH,YX |
| Oct 2025 | 173 | 53 | 0 | 0 | OH,OO,YX,MQ |
| Sep 2025 | 128 | 25 | 1 | 0 | MQ,OH,OO,YX |
| Aug 2025 | 147 | 35 | 8 | 0 | OO,YX,MQ,OH |
| Jul 2025 | 170 | 62 | 5 | 0 | OH,OO,YX,MQ |
| Jun 2025 | 125 | 50 | 3 | 1 | OH,OO,YX,MQ |
| May 2025 | 109 | 33 | 0 | 0 | OO,UA,YX,MQ |
| Apr 2025 | 86 | 16 | 2 | 0 | MQ,OO,UA |
| Mar 2025 | 110 | 24 | 1 | 0 | YX,OO,UA,MQ |
| Feb 2025 | 75 | 10 | 0 | 0 | OO,YX,MQ |
| Jan 2025 | 90 | 13 | 3 | 0 | YX,OO,MQ |
| Dec 2024 | 121 | 17 | 0 | 0 | MQ,OO,YX |
| Nov 2024 | 119 | 20 | 1 | 0 | YX,MQ |
| Oct 2024 | 145 | 23 | 0 | 0 | UA,MQ,YX |
| Sep 2024 | 123 | 22 | 2 | 0 | YX,OO,UA,MQ |
| Aug 2024 | 138 | 33 | 0 | 0 | MQ,YX,OO |
| Jul 2024 | 134 | 25 | 4 | 0 | MQ,OO,YX |
| Jun 2024 | 121 | 31 | 4 | 0 | MQ,OO,YX |
| May 2024 | 145 | 44 | 1 | 0 | MQ,YX,OO,UA |
| Apr 2024 | 116 | 17 | 0 | 0 | MQ,OO |
| Mar 2024 | 94 | 15 | 0 | 0 | MQ,YX,OO,UA |
| Feb 2024 | 87 | 10 | 0 | 0 | MQ,OO,UA |
| Jan 2024 | 92 | 28 | 4 | 1 | MQ,YX,OO |
Cancellation Rate
2.1%
63 of 2,953 flights
Diversion Rate
0.1%
4 of 2,953 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 →GSP - Greer
Full on-time, delay-cause, and seasonal performance for Greer, SC.
Destination airport →Compare the two airports
See ORD and GSP 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–GSP.
Routes with a similar on-time rate
What the Data Says About ORD to GSP
6,594 tracked flights put the ORD to GSP pairing (Chicago to Greer) at a 79.6% on-time rate, squarely in line with the wider network. Delays that do occur run 73.8 minutes on average. Across the 577-mile route and its 26 carriers, the trailing 24 months show 2.1% cancelled and 0.1% diverted (2,953 flights sampled).
The monthly split is wide on this route: Feb 2024 posted the strongest performance at 89% on-time, while Jun 2025 came in at just 60% - a 29-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.