AA2021 DEN → ORD

American Airlines · Denver, CO to Chicago, IL · 44 flights observed, 2026-04-07 to 2026-05-20 · 888 mi

This flight's reliability varies a lot by day of week — 71% on-time on Tuesdays vs. 33% on Mondays.

AA2021 covers more than one route in the data window — the stats below are for DEN → ORD, the one it has flown most recently. The others are linked under “Other routes”.

On-time arrival
53%
Median delay
+12 min
90th percentile
+159 min
Cancellation rate
2%

How often is AA2021 on time?

Across 44 flights on DEN → ORD from 2026-04-07 to 2026-05-20, AA2021 arrived within 15 minutes of schedule 53% of the time. The median arrival delay was +12 min, and the worst 10% of flights arrived +159 min or later. 2% of flights were cancelled.

Delay distribution

Arrival delay for completed flights (excludes cancellations and diversions).

ArrivalFlightsShare
Early / on-time2353%
16-30 min819%
31-60 min37%
61-120 min49%
2+ hrs512%

Performance by month

MonthFlightsOn-timeAvg delay
2026-042357%+171 min
2026-052050%+33 min

Performance by day of week

DayFlightsOn-time
Mon633%
Tue771%
Wed771%
Thu633%
Fri560%
Sat633%
Sun667%

Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…