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United Airlines

Is UA1851 delayed?

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

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Departure

Chicago

ORD

Scheduled

Sep 16

Arrival

Las Vegas

LAS

Scheduled

Sep 16

Times shown in airport local time

Flight details

Departure · UTC

Scheduled
Estimated
Not available
Actual
Not available

Arrival · UTC

Scheduled
Estimated
Not available
Actual
Not available
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 → Las VegasORDLAS
Route overview

Recent arrivals

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

  • ORD → LAS

    22 min late

  • ORD → LAS

    16 min late

  • ORD → LAS

    7 min late

  • ORD → LAS

    9 min late

  • ORD → LAS

    12 min early
Flight history and details

Aug 17, 2026 — Sep 16, 2026

Observed arrivals
23
Arrivals over 15 minutes late
4
Observed cancellations
0
Observed occurrences
29

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

UA1851 Recent arrival history
Service dateDepartureArrivalActualArrival delay (minutes)
Sep 15, 2026ArrivedChicagoLas Vegas
View this flight’s market
22
Sep 14, 2026ArrivedChicagoLas Vegas
16
Sep 12, 2026ArrivedChicagoLas Vegas
7
Sep 11, 2026ArrivedChicagoLas Vegas
9
Sep 10, 2026ArrivedChicagoLas Vegas
-12
Sep 9, 2026ArrivedChicagoLas Vegas
-7
Sep 8, 2026ArrivedChicagoLas Vegas
-19
Sep 7, 2026ArrivedMiamiHouston
246
Sep 6, 2026ArrivedMiamiHouston
97
Sep 5, 2026ArrivedMiamiHouston
-8
Sep 4, 2026ArrivedMiamiHouston
-14
Sep 3, 2026ArrivedMiamiHouston
3
Sep 1, 2026ArrivedMiamiHouston
-8
Aug 31, 2026ArrivedMiamiHouston
-14
Aug 30, 2026ArrivedMiamiHouston
-7
Aug 29, 2026ArrivedMiamiHouston
3
Aug 28, 2026ArrivedMiamiHouston
5
Aug 27, 2026ArrivedMiamiHouston
-1
Aug 26, 2026ArrivedMiamiHouston
-31
Aug 25, 2026ArrivedMiamiHouston
-13
Aug 23, 2026ArrivedMiamiHouston
-40
Aug 22, 2026ArrivedMiamiHouston
-18

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