UA1921 · UAL1921

UAL1921 over the last 30 days

As of 2026-10-24

UAL1921 is operated by United Airlines on the route Chicago O'Hare International Airport (ORD/KORD) → George Bush Intercontinental Airport (IAH/KIAH). It usually takes off around 23:37 UTC (18:37 local time, ORD). It usually lands around 01:42 UTC (20:42 local time, IAH). Most frequent aircraft type: AIRBUS A-321neo (A21N).

Days with an observed flight (last 30 days)

22/30

Days of the week with an observed flight

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

Typical take-off

23:37 UTC · 18:37 local time (ORD)

Typical landing

01:42 UTC · 20:42 local time (IAH)

Typical time airborne

125 min

Median departure delay on this route

−2 min

Departures within 15 minutes of schedule

89 %

Departures measured

346

Our measurement against the airport's published schedule over the last 28 days; the figures cover all flights of this airline on the route.

Aircraft types on this flight (last 30 days)

• AIRBUS A-321neo (A21N) — Number of flights: 25
• BOEING 737 MAX 9 (B39M) — Number of flights: 2
• BOEING 737-900 (B739) — Number of flights: 1

Aircraft in the last 7 days

• N64572 · AIRBUS A-321neo 2026-10-24
• N54525 · AIRBUS A-321neo 2026-10-23
• N14506 · AIRBUS A-321neo 2026-10-21
• N14527 · AIRBUS A-321neo 2026-10-21

Related flights on this route

• All flights KORD – KIAH