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United Airlines

Is UA664 delayed?

No delay reported yet. UA664 is scheduled to leave Las Vegas at 07:01 on Nov 14 and reach Chicago at 12:11 (as of Nov 14, 14:31 UTC).

Usually on time: arrived within 15 min of schedule on 29 of the last 34 flights.

Each route and date is shown separately. Confirm that both airports match your booking.

No live update yet

Showing the published schedule until live times come in.

Update time unavailable

Departure

Las Vegas

LAS

Scheduled

Nov 14

Arrival

Chicago

ORD

Scheduled

Nov 14

Times shown in airport local time

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

Flight details

Departure · UTC

Scheduled
Estimated
Not available
Actual
Not available

Arrival · UTC

Scheduled
Estimated
Not available
Actual
Not available

No live update yet

Showing the published schedule until live times come in.

Update time unavailable

Departure

Chicago

ORD

Scheduled

Nov 14

Arrival

Kansas City

MCI

Scheduled

Nov 14

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

Also sold as AC3345, AZ4428, LX3297

Route overview: Las Vegas → ChicagoLASORD
Las Vegas → Chicago

Recent arrivals

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

  • Las Vegas → Chicago

    6 min early
  • Chicago → Kansas City

    99 min late
  • Las Vegas → Chicago

    1 min early
  • Las Vegas → Chicago

    3 min early
  • Chicago → Kansas City

    27 min early

Is UA664 usually late?

Period: Oct 15, 2026 – Nov 14, 2026

Arrivals tracked
34
On time
85%
of 34 arrivals
Late
15%
of 34 arrivals
Cancelled
2%
of 45 flights
Median arrival delay
3 min early
9 in 10 arrived within
17 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

Las Vegas (LAS) departures

Left more than 15 min late
8 of 21
Cancelled today
30
Flights from Las Vegas to Chicago today

Chicago (ORD) departures

Left more than 15 min late
41 of 99
Cancelled today
113

All United Airlines flights

Flight history and details
UA664 Recent arrival history
Service dateDepartureArrivalActualArrival delay (minutes)
Nov 13, 2026CancelledChicagoKansas CityNot availableNot available
Nov 13, 2026ArrivedLas VegasChicago-6
Nov 12, 2026ArrivedChicagoKansas City99
Nov 12, 2026ArrivedLas VegasChicago-1
Nov 11, 2026ArrivedLas VegasChicago-3
Nov 10, 2026ArrivedChicagoKansas City-27
Nov 10, 2026ArrivedLas VegasChicago-21
Nov 9, 2026ArrivedChicagoKansas City-24
Nov 9, 2026ArrivedLas VegasChicago9
Nov 8, 2026ArrivedChicagoKansas City10
Nov 8, 2026ArrivedLas VegasChicago10
Nov 7, 2026ArrivedChicagoKansas City-4
Nov 7, 2026ArrivedLas VegasChicago-2
Nov 6, 2026ArrivedChicagoKansas City-2
Nov 6, 2026ArrivedLas VegasChicago-2
Nov 5, 2026ArrivedChicagoKansas City1
Nov 4, 2026ArrivedChicagoKansas City15
Nov 4, 2026ArrivedLas VegasChicago-23
Nov 1, 2026ArrivedChicagoKansas City-4
Oct 31, 2026ArrivedChicagoKansas City3
Oct 30, 2026ArrivedChicagoKansas City-16
Oct 29, 2026ArrivedChicagoKansas City-24
Oct 28, 2026ArrivedChicagoKansas City-3
Oct 27, 2026ArrivedChicagoKansas City-30
Oct 26, 2026ArrivedChicagoKansas City-7
Oct 25, 2026ArrivedChicagoKansas City-25
Oct 24, 2026ArrivedChicagoKansas City65
Oct 23, 2026ArrivedChicagoKansas City-3
Oct 22, 2026ArrivedChicagoKansas City18
Oct 21, 2026ArrivedChicagoKansas City-12
Oct 19, 2026ArrivedChicagoKansas City-12
Oct 18, 2026ArrivedChicagoKansas City16
Oct 17, 2026ArrivedChicagoKansas City140
Oct 16, 2026ArrivedChicagoKansas City-16
Oct 15, 2026ArrivedChicagoKansas City15
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