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United Airlines

Is UA1023 delayed?

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

Arrived

13 min early

Official source · Updated

Departure

Denver

DEN

Actual

Scheduled 15:50

Sep 3

Arrival

Chicago

ORD

Actual

Scheduled 19:30

Sep 3

Times shown in airport local time

Flight details

Departure · UTC

Scheduled
Estimated
Actual

Arrival · UTC

Scheduled
Estimated
Actual
Route overview: Denver → ChicagoDENORD
Route overview

Recent arrivals

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

  • SMF → DEN

    14 min early

  • SMF → DEN

    16 min early

  • SMF → DEN

    17 min early

  • SMF → DEN

    20 min early

  • SMF → DEN

    7 min early
Flight history and details

Aug 25, 2026 — Sep 24, 2026

Observed arrivals
31
Arrivals over 15 minutes late
1
Observed cancellations
0
Observed occurrences
33

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

UA1023 Recent arrival history
Service dateDepartureArrivalActualArrival delay (minutes)
Sep 23, 2026ArrivedSacramentoDenver
-14
Sep 22, 2026ArrivedSacramentoDenver
-16
Sep 21, 2026ArrivedSacramentoDenver
-17
Sep 20, 2026ArrivedSacramentoDenver
-20
Sep 19, 2026ArrivedSacramentoDenver
-7
Sep 18, 2026ArrivedSacramentoDenver
-13
Sep 17, 2026ArrivedSacramentoDenver
-13
Sep 16, 2026ArrivedSacramentoDenver
-6
Sep 15, 2026ArrivedSacramentoDenver
-21
Sep 13, 2026ArrivedSacramentoDenver
-20
Sep 11, 2026ArrivedSacramentoDenver
-21
Sep 10, 2026ArrivedSacramentoDenver
-14
Sep 9, 2026ArrivedSacramentoDenver
-19
Sep 8, 2026ArrivedSacramentoDenver
-25
Sep 7, 2026ArrivedDenverChicago
-14
Sep 7, 2026ArrivedSacramentoDenver
-22
Sep 6, 2026ArrivedDenverChicago
-3
Sep 6, 2026ArrivedSacramentoDenver
-17
Sep 5, 2026ArrivedDenverChicago
-43
Sep 5, 2026ArrivedSacramentoDenver
-21
Sep 4, 2026ArrivedDenverChicago
-23
Sep 4, 2026ArrivedSacramentoDenver
-28
Sep 3, 2026ArrivedDenverChicago
-13
Sep 2, 2026ArrivedDenverChicago
-36
Sep 1, 2026ArrivedDenverChicago
-35
Aug 30, 2026ArrivedDenverChicago
44
Aug 29, 2026ArrivedDenverChicago
-31
Aug 28, 2026ArrivedDenverChicago
-26
Aug 27, 2026ArrivedDenverChicago
-36
Aug 26, 2026ArrivedDenverChicago
-27
Aug 25, 2026ArrivedDenverChicago
-35

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