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United Airlines

Is UA664 delayed?

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

Arrived

35 min early

Official source · Updated

Departure

Las Vegas

LAS

Actual

Scheduled 07:15

Sep 1

Arrival

Chicago

ORD

Actual

Scheduled 13:03

Sep 1

Times shown in airport local time

Flight details

Departure · UTC

Scheduled
Estimated
Actual

Arrival · UTC

Scheduled
Estimated
Actual
Route overview: Las Vegas → ChicagoLASORD
Route overview

Recent arrivals

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

  • ORD → MCI

    <1 min early

  • LAS → ORD

    1 min early

  • ORD → MCI

    113 min late

  • LAS → ORD

    53 min late

  • ORD → MCI

    6 min late
Flight history and details

Aug 20, 2026 — Sep 19, 2026

Observed arrivals
49
Arrivals over 15 minutes late
9
Observed cancellations
0
Observed occurrences
55

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

UA664 Recent arrival history
Service dateDepartureArrivalActualArrival delay (minutes)
Sep 18, 2026ArrivedChicagoKansas City
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0
Sep 18, 2026ArrivedLas VegasChicago
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-1
Sep 17, 2026ArrivedChicagoKansas City
113
Sep 17, 2026ArrivedLas VegasChicago
53
Sep 16, 2026ArrivedChicagoKansas City
6
Sep 16, 2026ArrivedLas VegasChicago
-52
Sep 15, 2026ArrivedChicagoKansas City
34
Sep 15, 2026ArrivedLas VegasChicago
98
Sep 14, 2026ArrivedChicagoKansas City
-18
Sep 14, 2026ArrivedLas VegasChicago
-39
Sep 13, 2026ArrivedLas VegasChicago
-2
Sep 12, 2026ArrivedChicagoKansas City
16
Sep 12, 2026ArrivedLas VegasChicago
-42
Sep 11, 2026ArrivedChicagoKansas City
-21
Sep 11, 2026ArrivedLas VegasChicago
-23
Sep 10, 2026ArrivedChicagoKansas City
-7
Sep 10, 2026ArrivedLas VegasChicago
-15
Sep 9, 2026ArrivedChicagoKansas City
142
Sep 9, 2026ArrivedLas VegasChicago
-23
Sep 8, 2026ArrivedChicagoKansas City
19
Sep 8, 2026ArrivedLas VegasChicago
-3
Sep 7, 2026ArrivedChicagoKansas City
-12
Sep 7, 2026ArrivedLas VegasChicago
-34
Sep 6, 2026ArrivedChicagoKansas City
-25
Sep 5, 2026ArrivedChicagoKansas City
-21
Sep 5, 2026ArrivedLas VegasChicago
-44
Sep 4, 2026ArrivedChicagoKansas City
11
Sep 4, 2026ArrivedLas VegasChicago
-24
Sep 3, 2026ArrivedChicagoKansas City
34
Sep 3, 2026ArrivedLas VegasChicago
-20
Sep 2, 2026ArrivedLas VegasChicago
-27
Sep 1, 2026ArrivedLas VegasChicago
-35
Aug 31, 2026ArrivedChicagoKansas City
187
Aug 31, 2026ArrivedLas VegasChicago
-32
Aug 29, 2026ArrivedChicagoKansas City
-29
Aug 29, 2026ArrivedLas VegasChicago
-27
Aug 28, 2026ArrivedChicagoKansas City
-21
Aug 28, 2026ArrivedLas VegasChicago
3
Aug 27, 2026ArrivedChicagoKansas City
-12
Aug 27, 2026ArrivedLas VegasChicago
-18
Aug 26, 2026ArrivedChicagoKansas City
-18
Aug 26, 2026ArrivedLas VegasChicago
-38
Aug 25, 2026ArrivedChicagoKansas City
5
Aug 25, 2026ArrivedLas VegasChicago
-42
Aug 24, 2026ArrivedChicagoKansas City
-19
Aug 24, 2026ArrivedLas VegasChicago
-12
Aug 23, 2026ArrivedChicagoKansas City
-30
Aug 23, 2026ArrivedLas VegasChicago
-14
Aug 21, 2026ArrivedLas VegasChicago
-13

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