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United Airlines

Is UA4638 delayed?

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

Last reported

Cancelled

This update may be out of date.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

Update time unavailable

Departure

Chicago

ORD

Scheduled

Aug 28

Arrival

Colorado Springs

COS

Scheduled

Aug 29

Times shown in airport local time

Flight details

Departure · UTC

Scheduled
Estimated
Not available
Actual
Not available

Arrival · UTC

Scheduled
Estimated
Not available
Actual
Not available

Recent arrivals

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

  • ORD → COS

    25 min early

  • ORD → COS

    92 min late

  • ORD → COS

    3 min late

  • ORD → COS

    182 min late

  • ORD → COS

    3 min late
Flight history and details

Aug 21, 2026 — Sep 20, 2026

Observed arrivals
18
Arrivals over 15 minutes late
5
Observed cancellations
11
Observed occurrences
29

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

UA4638 Recent arrival history
Service dateDepartureArrivalActualArrival delay (minutes)
Sep 19, 2026CancelledChicagoColorado SpringsNot available
View this flight’s market
Not available
Sep 18, 2026ArrivedChicagoColorado Springs
-25
Sep 17, 2026ArrivedChicagoColorado Springs
92
Sep 16, 2026ArrivedChicagoColorado Springs
3
Sep 15, 2026ArrivedChicagoColorado Springs
182
Sep 14, 2026ArrivedChicagoColorado Springs
3
Sep 13, 2026ArrivedChicagoColorado Springs
-18
Sep 12, 2026ArrivedChicagoColorado Springs
-34
Sep 11, 2026ArrivedChicagoColorado Springs
-14
Sep 10, 2026ArrivedChicagoColorado Springs
17
Sep 9, 2026ArrivedChicagoColorado Springs
2
Sep 8, 2026ArrivedChicagoColorado Springs
-12
Sep 7, 2026ArrivedChicagoColorado Springs
-28
Sep 6, 2026ArrivedChicagoColorado Springs
16
Sep 5, 2026ArrivedChicagoColorado Springs
93
Sep 4, 2026ArrivedChicagoColorado Springs
-17
Sep 3, 2026ArrivedChicagoColorado Springs
0
Sep 2, 2026CancelledChicagoColorado SpringsNot available
Not available
Sep 1, 2026CancelledChicagoColorado SpringsNot available
Not available
Aug 31, 2026CancelledChicagoColorado SpringsNot available
Not available
Aug 30, 2026CancelledChicagoColorado SpringsNot available
Not available
Aug 29, 2026ArrivedChicagoColorado Springs
-45
Aug 28, 2026CancelledChicagoColorado SpringsNot available
Not available
Aug 27, 2026CancelledChicagoColorado SpringsNot available
Not available
Aug 26, 2026CancelledChicagoColorado SpringsNot available
Not available
Aug 25, 2026CancelledChicagoColorado SpringsNot available
Not available
Aug 24, 2026ArrivedChicagoColorado Springs
-10
Aug 23, 2026CancelledChicagoColorado SpringsNot available
Not available
Aug 22, 2026CancelledChicagoColorado SpringsNot available
Not available

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