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United Airlines

Is UA4166 delayed?

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

Arrived

25 min early

Updated

Departure

Chicago

ORD

Actual

Scheduled 10:45

Sep 1

Arrival

Madison

MSN

Actual

Scheduled 17:03

Sep 1

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.

  • ORD → MSN

    7 min early

  • ABE → ORD

    6 min late

  • ABE → ORD

    7 min late

  • ORD → MSN

    108 min late

  • ABE → ORD

    4 min late
Flight history and details

Aug 18, 2026 — Sep 17, 2026

Observed arrivals
22
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

UA4166 Recent arrival history
Service dateDepartureArrivalActualArrival delay (minutes)
Sep 16, 2026ArrivedChicagoMadison
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-7
Sep 16, 2026ArrivedAllentownChicago
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6
Sep 15, 2026ArrivedAllentownChicago
7
Sep 14, 2026ArrivedChicagoMadison
108
Sep 14, 2026ArrivedAllentownChicago
4
Sep 13, 2026ArrivedAllentownChicago
1
Sep 12, 2026ArrivedAllentownChicago
-25
Sep 11, 2026ArrivedAllentownChicago
-41
Sep 10, 2026ArrivedAllentownChicago
-47
Sep 9, 2026ArrivedChicagoMadison
-27
Sep 9, 2026ArrivedAllentownChicago
-23
Sep 8, 2026ArrivedChicagoMadison
-18
Sep 8, 2026ArrivedAllentownChicago
-24
Sep 7, 2026ArrivedChicagoMadison
-8
Sep 7, 2026ArrivedAllentownChicago
-42
Sep 6, 2026ArrivedAllentownChicago
-31
Sep 5, 2026ArrivedChicagoMadison
-18
Sep 5, 2026ArrivedAllentownChicago
8
Sep 4, 2026ArrivedAllentownChicago
5
Sep 1, 2026ArrivedChicagoMadison
-25
Aug 27, 2026ArrivedChicagoMadison
-22
Aug 26, 2026ArrivedChicagoMadison
-16

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