UA1666 · UAL1666

UAL1666 over the last 30 days

As of 2026-10-27

UAL1666 is operated by United Airlines on the route Cincinnati Northern Kentucky International Airport (CVG/KCVG) → Denver International Airport (DEN/KDEN). It usually takes off around 12:14 UTC (08:14 local time, CVG). It usually lands around 14:44 UTC (08:44 local time, DEN). Most frequent aircraft type: BOEING 737 MAX 9 (B39M).

Days with an observed flight (last 30 days)

30/30

Days of the week with an observed flight

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

Typical take-off

12:14 UTC · 08:14 local time (CVG)

Typical landing

14:44 UTC · 08:44 local time (DEN)

Typical time airborne

150 min

Median departure deviation from the usual time on this route

+1 min

Departures within 15 minutes of the usual time

95 %

Departures measured

55

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 MAX 9 (B39M) — Number of flights: 30
• BOEING 737-900 (B739) — Number of flights: 1

Aircraft in the last 7 days

• N17452 · BOEING 737 MAX 9 2026-10-27
• N17431 · BOEING 737 MAX 9 2026-10-26
• N37507 · BOEING 737 MAX 9 2026-10-25
• N97424 · BOEING 737 MAX 9 2026-10-24
• N27476 · BOEING 737 MAX 9 2026-10-23
• N37484 · BOEING 737 MAX 9 2026-10-22

Related flights on this route

• All flights KCVG – KDEN