Route
SPI → ORD
Abraham Lincoln Capital Airport Chicago O'Hare International Airport
How punctual is this route?
- On-time arrivals
- 81.3%
- Less than 15 minutes late
- Cancelled
- 3.2%
- Of scheduled flights
- Average delay when late
- 98 min
- Flights arriving 15+ minutes late
- Flights tracked
- 709
- Scheduled flights in the period
What caused the delays
- Late-arriving aircraft 36%
- Airline (crew, maintenance, cleaning) 29%
- Air traffic control & airport 26%
- Extreme weather 10%
- Security 0%
Share of delay minutes airlines attributed to each cause (BTS).
Show as table
| Month | On time | Flights |
|---|---|---|
| September 2025 | 83.9% | 57 |
| October 2025 | 88.5% | 61 |
| November 2025 | 76.4% | 59 |
| December 2025 | 70.9% | 59 |
| January 2026 | 82.8% | 58 |
| February 2026 | 88.5% | 52 |
| March 2026 | 84.6% | 58 |
| April 2026 | 76.8% | 59 |
| May 2026 | 88.7% | 62 |
| June 2026 | 83.1% | 60 |
| July 2026 | 76.7% | 62 |
| August 2026 | 75.0% | 62 |
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 |
|---|---|---|---|---|
| Envoy Air | 676 | 81.8% | 3.3% | 97 min |
| SkyWest Airlines | 33 | 71.9% | 3.0% | 116 min |
Delay odds by flight
How often each flight number arrived 15 or more minutes late over the last year.
-
MQ4330
28% late · 162 flights
-
MQ4332
11% late · 125 flights
-
MQ4328
11% late · 120 flights
-
MQ4313
25% late · 94 flights
-
MQ3617
6% late · 33 flights
-
MQ4309
18% late · 31 flights
-
OO6273
27% late · 30 flights
-
MQ4310
37% late · 29 flights
-
MQ3770
19% late · 27 flights
-
MQ3791
15% late · 27 flights
-
MQ3708
5% late · 20 flights
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