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United Airlines

Is UA4821 delayed?

UA4821 is cancelled on Nov 13.

Usually on time: arrived within 15 min of schedule on 23 of the last 27 flights.

Last reported

Cancelled

This update may be out of date.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

Update time unavailable

Departure

Houston

IAH

Scheduled

Nov 13

Arrival

Amarillo

AMA

Scheduled

Nov 13

Times shown in airport local time

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

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.

  • Houston → Amarillo

    11 min early

  • Houston → Amarillo

    15 min early

  • Houston → Amarillo

    19 min early

  • Houston → Amarillo

    13 min early

  • Houston → Amarillo

    18 min early

Is UA4821 usually late?

Period: Oct 15, 2026 – Nov 14, 2026

Arrivals tracked
27
On time
85%
of 27 arrivals
Late
15%
of 27 arrivals
Cancelled
3%
of 29 flights
Median arrival delay
15 min early
9 in 10 arrived within
31 min

On time means arriving no more than 15 minutes after the scheduled time; late means more than 15 minutes after. Cancelled and diverted flights are counted apart from arrivals. Compares scheduled and actual arrival times. Cancelled and diverted flights are left out. Some flights may be missing.

How flight status works

At the airports today

Houston (IAH) departures

Left more than 15 min late
19 of 61
Cancelled today
53
Flights from Houston to Amarillo today

Related flights

Other flights IAH → KAMA

All United Airlines flights

Flight history and details
UA4821 Recent arrival history
Service dateDepartureArrivalActualArrival delay (minutes)
Nov 13, 2026CancelledHoustonAmarilloNot availableNot available
Nov 12, 2026ArrivedHoustonAmarillo-11
Nov 11, 2026ArrivedHoustonAmarillo-15
Nov 10, 2026ArrivedHoustonAmarillo-19
Nov 9, 2026ArrivedHoustonAmarillo-13
Nov 8, 2026ArrivedHoustonAmarillo-18
Nov 7, 2026ArrivedHoustonAmarillo-18
Nov 6, 2026ArrivedHoustonAmarillo-17
Nov 5, 2026ArrivedHoustonAmarillo-1
Nov 4, 2026ArrivedHoustonAmarillo-7
Nov 3, 2026ArrivedHoustonAmarillo48
Nov 2, 2026ArrivedHoustonAmarillo150
Nov 1, 2026ArrivedHoustonAmarillo-9
Oct 31, 2026ArrivedHoustonAmarillo-20
Oct 29, 2026ArrivedHoustonAmarillo20
Oct 28, 2026ArrivedHoustonAmarillo-17
Oct 27, 2026ArrivedHoustonAmarillo-12
Oct 26, 2026ArrivedHoustonAmarillo-23
Oct 25, 2026ArrivedHoustonAmarillo-19
Oct 24, 2026ArrivedHoustonAmarillo-24
Oct 23, 2026ArrivedHoustonAmarillo-20
Oct 22, 2026ArrivedHoustonAmarillo1
Oct 21, 2026ArrivedHoustonAmarillo-20
Oct 20, 2026ArrivedHoustonAmarillo-14
Oct 19, 2026ArrivedHoustonAmarillo-21
Oct 18, 2026ArrivedHoustonAmarillo-17
Oct 17, 2026ArrivedHoustonAmarillo-11
Oct 16, 2026ArrivedHoustonAmarillo67
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