Route
ORD → CHA
Chicago O'Hare International Airport Chattanooga Metropolitan Airport (Lovell Field)
How punctual is this route?
- On-time arrivals
- 68.3%
- Less than 15 minutes late
- Cancelled
- 5.0%
- Of scheduled flights
- Average delay when late
- 82 min
- Flights arriving 15+ minutes late
- Flights tracked
- 989
- Scheduled flights in the period
What caused the delays
- Airline (crew, maintenance, cleaning) 38%
- Late-arriving aircraft 32%
- Air traffic control & airport 17%
- Extreme weather 12%
- Security 0%
Share of delay minutes airlines attributed to each cause (BTS).
Show as table
| Month | On time | Flights |
|---|---|---|
| September 2025 | 78.0% | 59 |
| October 2025 | 70.2% | 132 |
| November 2025 | 70.8% | 118 |
| December 2025 | 63.8% | 61 |
| January 2026 | 74.1% | 57 |
| February 2026 | 61.5% | 78 |
| March 2026 | 61.5% | 157 |
| April 2026 | 73.8% | 152 |
| May 2026 | 82.7% | 53 |
| June 2026 | 67.7% | 33 |
| July 2026 | 50.0% | 31 |
| August 2026 | 57.9% | 58 |
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 | 456 | 67.7% | 5.9% | 80 min |
| Republic Airways | 273 | 64.9% | 5.1% | 86 min |
| Envoy Air | 260 | 73.0% | 3.1% | 79 min |
Delay odds by flight
How often each flight number arrived 15 or more minutes late over the last year.
-
YX4511
40% late · 110 flights
-
MQ3977
23% late · 97 flights
-
OO5582
30% late · 96 flights
-
OO5363
21% late · 47 flights
-
YX4727
44% late · 46 flights
-
MQ4190
9% late · 44 flights
-
YX3489
29% late · 37 flights
-
YX3585
29% late · 32 flights
-
OO4671
20% late · 31 flights
-
OO5229
23% late · 30 flights
-
OO5998
31% late · 29 flights
-
OO5580
35% late · 28 flights
-
MQ3533
50% late · 27 flights
-
MQ3936
33% late · 27 flights
-
YX4803
26% late · 27 flights
-
OO5530
21% late · 25 flights
-
OO5435
38% late · 24 flights
-
OO5487
27% late · 24 flights
-
OO5739
85% late · 24 flights
-
MQ3724
29% late · 23 flights
-
OO5971
40% late · 21 flights
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