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United Airlines

Is UA4551 delayed?

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

Arrived

5 min late

Updated

Departure

Chicago

ORD

Actual

Scheduled 08:40

Aug 27

Arrival

Dayton

DAY

Actual

Scheduled 14:58

Aug 27

Times shown in airport local time

Flight details

Departure · UTC

Scheduled
Estimated
Actual

Arrival · UTC

Scheduled
Estimated
Actual

Recent arrivals

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

  • PIA → ORD

    109 min late

  • PIA → ORD

    107 min late

  • PIA → ORD

    19 min early

  • PIA → ORD

    27 min early

  • PIA → ORD

    36 min early
Flight history and details

Aug 19, 2026 — Sep 18, 2026

Observed arrivals
20
Arrivals over 15 minutes late
6
Observed cancellations
0
Observed occurrences
31

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

UA4551 Recent arrival history
Service dateDepartureArrivalActualArrival delay (minutes)
Sep 18, 2026ArrivedPeoriaChicago
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109
Sep 17, 2026ArrivedPeoriaChicago
107
Sep 16, 2026ArrivedPeoriaChicago
-19
Sep 15, 2026ArrivedPeoriaChicago
-27
Sep 14, 2026ArrivedPeoriaChicago
-36
Sep 13, 2026ArrivedPeoriaChicago
-22
Sep 12, 2026ArrivedPeoriaChicago
-5
Sep 11, 2026ArrivedPeoriaChicago
-38
Sep 10, 2026ArrivedPeoriaChicago
-10
Sep 9, 2026ArrivedPeoriaChicago
-39
Sep 8, 2026ArrivedPeoriaChicago
-1
Sep 6, 2026ArrivedChicagoDayton
-18
Sep 6, 2026ArrivedGrand RapidsChicago
58
Sep 5, 2026ArrivedChicagoDayton
48
Sep 5, 2026ArrivedGrand RapidsChicago
84
Sep 4, 2026ArrivedChicagoDayton
24
Sep 4, 2026ArrivedGrand RapidsChicago
13
Sep 1, 2026ArrivedChicagoDayton
-25
Aug 28, 2026ArrivedChicagoDayton
-12
Aug 27, 2026ArrivedChicagoDayton
5

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