About 1 in 3 AA 4331 flights from Chicago arrived 15+ minutes late, diverted or cancelled over the past year (34%); 5.0% were cancelled. The typical flight landed 2 minutes early.
AA 4331: ORD → SPI
Scheduled to leave Chicago at 11:00 p.m. local time, operated by Envoy as MQ 4331. Over the past year it arrived on time 66% of the time (242 flights), in line with other AA flights on the route at that hour (68%). Last seen in the data Aug 4, 2026.
Usually American Airlines's last flight of the day from Chicago to Springfield (95% of days). American Airlines's last ORD–SPI flight was cancelled 4.6% of the time, against 2.0% for its earlier ones. If it's cancelled, the next American Airlines flight is usually around 1:14 p.m. the next morning.
Month by month
By day of week
| Day | Flights | On time |
|---|---|---|
| Monday | 35 | 63% |
| Tuesday | 35 | 74% |
| Wednesday | 33 | 61% |
| Thursday | 34 | 62% |
| Friday | 35 | 69% |
| Saturday | 35 | 74% |
| Sunday | 35 | 60% |
Why it was late
All flights ORD → SPI · Connecting off AA 4331? Check the risk
Questions
How often is AA 4331 from ORD to SPI late?
American Airlines 4331 from Chicago, IL to Springfield, IL arrived 15 or more minutes late, was diverted or was cancelled on 34% of 242 scheduled flights between September 2025 and August 2026. 5.0% were cancelled.
Flight numbers change. Figures cover flights with this airline, number and route only. "Likely range" is the 95% interval for the true on-time rate given the number of flights. This is history, not live status: check American Airlines for today's flight. Method.