About 1 in 4 UA 4421 flights from Springfield arrived 15+ minutes late, diverted or cancelled over the past year (23%); 5.1% were cancelled. The typical flight landed 9 minutes early.
UA 4421: SGF → ORD
Scheduled to leave Springfield at 7:45 a.m. local time, operated by GoJet as G7 4421. Over the past year it arrived on time 77% of the time (297 flights), worse than other UA flights on the route at that hour (82%). Last seen in the data Aug 10, 2026.
Month by month
By day of week
| Day | Flights | On time |
|---|---|---|
| Monday | 43 | 79% |
| Tuesday | 42 | 81% |
| Wednesday | 43 | 81% |
| Thursday | 42 | 76% |
| Friday | 43 | 74% |
| Saturday | 43 | 72% |
| Sunday | 41 | 76% |
Why it was late
All flights SGF → ORD · Connecting off UA 4421? Check the risk
Questions
How often is UA 4421 from SGF to ORD late?
United Airlines 4421 from Springfield, MO to Chicago, IL arrived 15 or more minutes late, was diverted or was cancelled on 23% of 297 scheduled flights between September 2025 and August 2026. 5.1% 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 United Airlines for today's flight. Method.