UA1023 · UAL1023

UAL1023 over the last 30 days

As of 2026-10-26

UAL1023 is operated by United Airlines on the route Denver International Airport (DEN/KDEN) → Chicago O'Hare International Airport (ORD/KORD). It usually takes off around 21:04 UTC (15:04 local time, DEN). It usually lands around 22:58 UTC (17:58 local time, ORD). Most frequent aircraft type: BOEING 737-900 (B739).

Days with an observed flight (last 30 days)

29/30

Days of the week with an observed flight

Mon, Tue, Wed, Thu, Fri, Sat, Sun

Typical take-off

21:04 UTC · 15:04 local time (DEN)

Typical landing

22:58 UTC · 17:58 local time (ORD)

Typical time airborne

114 min

Median departure deviation from the usual time on this route

+4 min

Departures within 15 minutes of the usual time

75 %

Departures measured

329

Our measurement against the usual departure time of the route, from our own observations over the last 28 days; the figures cover all flights of this airline on the route.

Aircraft types on this flight (last 30 days)

• BOEING 737-900 (B739) — Number of flights: 24
• BOEING 737 MAX 9 (B39M) — Number of flights: 5
• BOEING 757-200 (B752) — Number of flights: 1

Aircraft in the last 7 days

• N21108 · BOEING 757-200 2026-10-26
• N17427 · BOEING 737 MAX 9 2026-10-25
• N37562 · BOEING 737 MAX 9 2026-10-24
• N39461 · BOEING 737-900 2026-10-23
• N39415 · BOEING 737-900 2026-10-22
• N53442 · BOEING 737-900 2026-10-21

Related flights on this route

• All flights KDEN – KORD