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United Airlines

Is UA1231 delayed?

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

Arrived

11 min early

Official source · Updated

Departure

Chicago

ORD

Scheduled

Sep 23

Arrival

Houston

IAH

Actual

Scheduled 10:15

Sep 23

Times shown in airport local time

Flight details

Departure · UTC

Scheduled
Estimated
Not available
Actual
Not available

Arrival · UTC

Scheduled
Estimated
Not available
Actual
View this flight’s market

Market prices express trading expectations about a contract’s stated threshold. They do not confirm airline status. The linked market shows its terms and activity.

Route overview: Chicago → HoustonORDIAH
Route overview

Recent arrivals

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

  • ORD → IAH

    11 min early

  • ORD → IAH

    13 min early

  • ORD → IAH

    16 min early

  • ORD → IAH

    5 min early

  • ORD → IAH

    42 min late
Flight history and details

Aug 25, 2026 — Sep 24, 2026

Observed arrivals
30
Arrivals over 15 minutes late
2
Observed cancellations
0
Observed occurrences
30

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

UA1231 Recent arrival history
Service dateDepartureArrivalActualArrival delay (minutes)
Sep 23, 2026ArrivedChicagoHouston
View this flight’s market
-11
Sep 22, 2026ArrivedChicagoHouston
-13
Sep 21, 2026ArrivedChicagoHouston
-16
Sep 20, 2026ArrivedChicagoHouston
-5
Sep 19, 2026ArrivedChicagoHouston
42
Sep 18, 2026ArrivedChicagoHouston
-8
Sep 17, 2026ArrivedChicagoHouston
38
Sep 16, 2026ArrivedChicagoHouston
8
Sep 15, 2026ArrivedChicagoHouston
3
Sep 14, 2026ArrivedChicagoHouston
-12
Sep 13, 2026ArrivedChicagoHouston
-28
Sep 12, 2026ArrivedChicagoHouston
-27
Sep 11, 2026ArrivedChicagoHouston
10
Sep 10, 2026ArrivedChicagoHouston
-16
Sep 9, 2026ArrivedChicagoHouston
-7
Sep 8, 2026ArrivedChicagoHouston
-9
Sep 7, 2026ArrivedChicagoHouston
-25
Sep 6, 2026ArrivedChicagoHouston
-43
Sep 5, 2026ArrivedChicagoHouston
-25
Sep 4, 2026ArrivedChicagoHouston
4
Sep 3, 2026ArrivedChicagoHouston
-28
Sep 2, 2026ArrivedChicagoHouston
-20
Sep 1, 2026ArrivedChicagoHouston
-30
Aug 31, 2026ArrivedChicagoHouston
-13
Aug 30, 2026ArrivedChicagoHouston
-13
Aug 29, 2026ArrivedChicagoHouston
-40
Aug 28, 2026ArrivedChicagoHouston
-29
Aug 27, 2026ArrivedChicagoHouston
-18
Aug 26, 2026ArrivedChicagoHouston
-33
Aug 25, 2026ArrivedChicagoHouston
-22

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