Will UA4021 be delayed today?
Houston → Memphis Frederick W. Smith · Sat 31 Oct · United
updated Houston time
Unlikely. It should leave close to 14:38.
It should have left by now. The board hasn't shown it leaving yet.
No6%Unlikely20%Maybe45%Probably70%Very likely93%% of flights that really left 15+ min late when we said that word ›Leaves14:38≈14:35
Lands16:23≈16:18
As of 08:39, UA4021 should push back about 14:35 (scheduled 14:38) and land about 16:18 (scheduled 16:23).
Boarding still follows the original schedule.
Why ≈3 min early
A usual afternoonUA4021's typical departure, last 90 days−2
Your planeNot assigned yet0
More rain than usualFrom the TAF: 94% chance of rain at Houston today+1
Houston is running smoothly0% of departures in the last hour left 15+ min late−1
FAA plan for todayThe FAA expects constraints at Houston today−1
Leaves≈−3−6 to 0
Made up in the air−2
Lands≈−5
weather at MemphisUnited todaystorms, quakes, volcanoes
Cancelled? < 1 in 200
Check again 11:38Houston time
Meeting someone?
Last 90 days
13on time
2late
4very late
0cancelled
M
T
W
T
F
S
S
UA4021 Houston to Memphis left within 15 minutes of schedule on 13 of its last 19 flights, usually 1 minutes early, and 15 minutes or more late on 6. It wasn't cancelled once.