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United Airlines

Is UA4637 delayed?

Service date: · Scheduled departure date (UTC)

Arrived

20 min early

Official source · Updated

Departure

Omaha

OMA

Actual

Scheduled 11:25

Sep 6

Arrival

Chicago

ORD

Actual

Scheduled 07:41

Sep 6

Times shown in airport local time

Flight details

Departure · UTC

Scheduled
Estimated
Not available
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.

  • BIL → DEN

    18 min early

  • ACV → LAX

    20 min early

  • BIL → DEN

    136 min late

  • BIL → DEN

    8 min late

  • BIL → DEN

    8 min late
Flight history and details

Aug 22, 2026 — Sep 21, 2026

Observed arrivals
15
Arrivals over 15 minutes late
4
Observed cancellations
0
Observed occurrences
15

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

UA4637 Recent arrival history
Service dateDepartureArrivalActualArrival delay (minutes)
Sep 20, 2026ArrivedBillingsDenver
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-18
Sep 19, 2026ArrivedArcata/EurekaLos Angeles
-20
Sep 18, 2026ArrivedBillingsDenver
136
Sep 17, 2026ArrivedBillingsDenver
8
Sep 16, 2026ArrivedBillingsDenver
8
Sep 15, 2026ArrivedBillingsDenver
26
Sep 14, 2026ArrivedBillingsDenver
3
Sep 12, 2026ArrivedArcata/EurekaLos Angeles
-18
Sep 11, 2026ArrivedBillingsDenver
10
Sep 10, 2026ArrivedBillingsDenver
-7
Sep 9, 2026ArrivedBillingsDenver
-7
Sep 8, 2026ArrivedBillingsDenver
15
Sep 7, 2026ArrivedBillingsDenver
20
Sep 6, 2026ArrivedOmahaChicago
-20
Sep 4, 2026ArrivedBillingsDenver
9

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