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United Airlines

Is UA1233 delayed?

Service date: · Scheduled departure date (America/Denver)

DepartedLast reported

6 min early

This update may be out of date. Check with your airline.

Update time unavailable

Departure

Denver

DEN

Actual

Scheduled 12:06

Sep 16

Arrival

Newark

EWR

Scheduled

Sep 16

Times shown in airport local time

Flight details

Departure · UTC

Scheduled
Estimated
Not available
Actual

Arrival · UTC

Scheduled
Estimated
Not available
Actual
Not available
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Route overview: Denver → NewarkDENEWR
Route overview

Recent arrivals

Dates below are arrival dates in the destination airport’s time zone. The detailed history uses service dates.

  • DEN → EWR

    25 min late

  • DEN → EWR

    19 min late

  • DEN → EWR

    26 min late

  • DEN → EWR

    1 min early

  • DEN → EWR

    5 min late
Flight history and details

Aug 17, 2026 — Sep 16, 2026

Observed arrivals
27
Arrivals over 15 minutes late
8
Observed cancellations
0
Observed occurrences
28

Results compare scheduled and actual arrival times. Cancelled or diverted flights are excluded. Some flights may be missing from the history.

How flight status works

UA1233 Recent arrival history
Service dateDepartureArrivalActualArrival delay (minutes)
Sep 15, 2026ArrivedDenverNewark
25
Sep 14, 2026ArrivedDenverNewark
19
Sep 13, 2026ArrivedDenverNewark
26
Sep 12, 2026ArrivedDenverNewark
-1
Sep 11, 2026ArrivedDenverNewark
5
Sep 10, 2026ArrivedDenverNewark
-26
Sep 9, 2026ArrivedDenverNewark
-22
Sep 8, 2026ArrivedDenverNewark
6
Sep 7, 2026ArrivedDenverNewark
0
Sep 6, 2026ArrivedDenverNewark
7
Sep 5, 2026ArrivedDenverNewark
-14
Sep 4, 2026ArrivedDenverNewark
22
Sep 3, 2026ArrivedDenverNewark
23
Sep 2, 2026ArrivedDenverNewark
-3
Sep 1, 2026ArrivedDenverNewark
-3
Aug 31, 2026ArrivedDenverNewark
-37
Aug 30, 2026ArrivedDenverNewark
-22
Aug 29, 2026ArrivedDenverNewark
-5
Aug 28, 2026ArrivedDenverNewark
24
Aug 27, 2026ArrivedDenverNewark
105
Aug 26, 2026ArrivedDenverNewark
-25
Aug 25, 2026ArrivedDenverNewark
-11
Aug 24, 2026ArrivedDenverNewark
-27
Aug 23, 2026ArrivedDenverNewark
-17
Aug 22, 2026ArrivedDenverNewark
-5
Aug 21, 2026ArrivedDenverNewark
-18
Aug 20, 2026ArrivedDenverNewark
397

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