Route
CHS → ORD
Charleston International Airport Chicago O'Hare International Airport
How punctual is this route?
- On-time arrivals
- 76.7%
- Less than 15 minutes late
- Cancelled
- 2.3%
- Of scheduled flights
- Average delay when late
- 79 min
- Flights arriving 15+ minutes late
- Flights tracked
- 2,153
- Scheduled flights in the period
What caused the delays
- Air traffic control & airport 45%
- Late-arriving aircraft 31%
- Airline (crew, maintenance, cleaning) 22%
- Extreme weather 2%
- Security 0%
Share of delay minutes airlines attributed to each cause (BTS).
Show as table
| Month | On time | Flights |
|---|---|---|
| September 2025 | 79.3% | 145 |
| October 2025 | 82.4% | 176 |
| November 2025 | 74.3% | 178 |
| December 2025 | 73.7% | 172 |
| January 2026 | 80.7% | 145 |
| February 2026 | 77.7% | 152 |
| March 2026 | 70.5% | 209 |
| April 2026 | 74.2% | 194 |
| May 2026 | 79.2% | 208 |
| June 2026 | 77.9% | 202 |
| July 2026 | 81.9% | 186 |
| August 2026 | 70.7% | 186 |
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 | 788 | 75.8% | 1.6% | 78 min |
| Envoy Air | 495 | 78.7% | 2.8% | 78 min |
| Republic Airways | 432 | 71.5% | 3.2% | 56 min |
| American Airlines | 352 | 84.2% | 1.4% | 113 min |
| SkyWest Airlines | 85 | 69.1% | 4.7% | 129 min |
| OH | 1 | 100.0% | 0.0% | — |
Delay odds by flight
How often each flight number arrived 15 or more minutes late over the last year.
-
UA2333
15% late · 203 flights
-
UA592
14% late · 193 flights
-
YX3426
36% late · 82 flights
-
MQ3931
19% late · 80 flights
-
AA2452
14% late · 76 flights
-
MQ3454
27% late · 76 flights
-
AA3027
10% late · 75 flights
-
YX3441
21% late · 73 flights
-
MQ3928
29% late · 54 flights
-
MQ4281
22% late · 54 flights
-
UA1498
51% late · 50 flights
-
MQ4195
33% late · 47 flights
-
UA659
52% late · 47 flights
-
YX4711
30% late · 44 flights
-
AA2014
7% late · 43 flights
-
YX4616
22% late · 43 flights
-
UA1094
52% late · 42 flights
-
AA2991
22% late · 40 flights
-
UA1641
41% late · 36 flights
-
YX3416
21% late · 36 flights
-
MQ3582
6% late · 35 flights
-
YX4377
42% late · 33 flights
-
UA1114
24% late · 31 flights
-
UA528
13% late · 31 flights
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