About 1 in 4 AA 4821 flights from Dallas arrived 15+ minutes late, diverted or cancelled over the past year (27%); 1.5% were cancelled. The typical flight landed 9 minutes early.
AA 4821: DFW → GRI
Scheduled to leave Dallas at 3:32 p.m. local time, operated by SkyWest as OO 4821. Over the past year it arrived on time 73% of the time (344 flights), in line with other AA flights on the route at that hour (71%). Last seen in the data Aug 31, 2026.
Month by month
By day of week
| Day | Flights | On time |
|---|---|---|
| Monday | 53 | 70% |
| Tuesday | 31 | 84% |
| Wednesday | 52 | 83% |
| Thursday | 52 | 73% |
| Friday | 52 | 79% |
| Saturday | 52 | 56% |
| Sunday | 52 | 69% |
Why it was late
All flights DFW → GRI · Connecting off AA 4821? Check the risk
AA 4821: GRI → DFW
Scheduled to leave Grand Island at 5:56 p.m. local time, operated by SkyWest as OO 4821. Over the past year it arrived on time 70% of the time (338 flights), in line with other AA flights on the route at that hour (69%). Last seen in the data Aug 31, 2026.
Usually American Airlines's last flight of the day from Grand Island to Dallas (100% of days). American Airlines's last GRI–DFW flight was cancelled 3.3% of the time, against 2.4% for its earlier ones. If it's cancelled, the next American Airlines flight is usually around 5:30 a.m. the next morning.
Month by month
By day of week
| Day | Flights | On time |
|---|---|---|
| Monday | 53 | 68% |
| Tuesday | 31 | 77% |
| Wednesday | 49 | 71% |
| Thursday | 51 | 84% |
| Friday | 51 | 71% |
| Saturday | 51 | 57% |
| Sunday | 52 | 67% |
Why it was late
All flights GRI → DFW · Connecting off AA 4821? Check the risk
Questions
How often is AA 4821 from DFW to GRI late?
American Airlines 4821 from Dallas/Fort Worth, TX to Grand Island, NE arrived 15 or more minutes late, was diverted or was cancelled on 27% of 344 scheduled flights between September 2025 and August 2026. 1.5% were cancelled.
How often is AA 4821 from GRI to DFW late?
American Airlines 4821 from Grand Island, NE to Dallas/Fort Worth, TX arrived 15 or more minutes late, was diverted or was cancelled on 30% of 338 scheduled flights between September 2025 and August 2026. 3.3% 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.