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United Airlines

Is UA4644 delayed?

Service date: · Scheduled departure date (UTC)

Arrived

29 min early

Official source · Updated

Departure

Birmingham

BHM

Scheduled

Sep 13

Arrival

Houston

IAH

Actual

Scheduled 13:17

Sep 13

Times shown in airport local time

Flight details

Departure · UTC

Scheduled
Estimated
Not available
Actual
Not available

Arrival · UTC

Scheduled
Estimated
Not available
Actual

Recent arrivals

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

  • BHM → IAH

    12 min early

  • BHM → IAH

    20 min early

  • BHM → IAH

    26 min early

  • BHM → IAH

    21 min early

  • BHM → IAH

    29 min early
Flight history and details

Aug 20, 2026 — Sep 19, 2026

Observed arrivals
15
Arrivals over 15 minutes late
2
Observed cancellations
3
Observed occurrences
19

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

UA4644 Recent arrival history
Service dateDepartureArrivalActualArrival delay (minutes)
Sep 18, 2026ArrivedBirminghamHouston
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-12
Sep 17, 2026ArrivedBirminghamHouston
-20
Sep 16, 2026ArrivedBirminghamHouston
-26
Sep 14, 2026ArrivedBirminghamHouston
-21
Sep 13, 2026ArrivedBirminghamHouston
-29
Sep 12, 2026ArrivedBirminghamHouston
-25
Sep 11, 2026ArrivedBirminghamHouston
-26
Sep 10, 2026ArrivedBirminghamHouston
160
Sep 9, 2026ArrivedBirminghamHouston
1
Sep 8, 2026ArrivedBirminghamHouston
-23
Sep 7, 2026ArrivedHoustonOmaha
-18
Sep 6, 2026ArrivedHoustonOmaha
-20
Sep 5, 2026ArrivedHoustonOmaha
-9
Sep 4, 2026ArrivedHoustonOmaha
-13
Sep 3, 2026ArrivedHoustonOmaha
51
Sep 1, 2026CancelledHoustonOmahaNot available
Not available
Aug 28, 2026CancelledHoustonOmahaNot available
Not available
Aug 21, 2026CancelledHoustonOmahaNot available
Not available

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