Is UA664 delayed?
Each route and date is shown separately. Confirm that both airports match your booking.
Service date: · Scheduled departure date (America/Chicago)
Arrived
29 min early
Updated
Departure
Chicago
ORD
Actual
Scheduled 15:47
Aug 29
Arrival
Kansas City
MCI
Actual
Scheduled 22:30
Aug 29
Times shown in airport local time
Flight details
Departure · UTC
- Scheduled
- Estimated
- Actual
Arrival · UTC
- Scheduled
- Estimated
- Actual
Service date: · Scheduled departure date (America/Los_Angeles)
Arrived
27 min early
Official source · Updated
Departure
Las Vegas
LAS
Actual
Scheduled 07:15
Aug 29
Arrival
Chicago
ORD
Actual
Scheduled 13:03
Aug 29
Times shown in airport local time
Flight details
Departure · UTC
- Scheduled
- Estimated
- Actual
Arrival · UTC
- Scheduled
- Estimated
- Actual
ORDMCI
Recent arrivals
Dates below are arrival dates in the destination airport’s time zone. The detailed history uses service dates.
- 34 min late
ORD → MCI
- 98 min late
LAS → ORD
- 18 min early
ORD → MCI
- 39 min early
LAS → ORD
- 2 min early
LAS → ORD
Flight history and details
Aug 17, 2026 — Sep 16, 2026
- Observed arrivals
- 44
- Arrivals over 15 minutes late
- 7
- Observed cancellations
- 0
- Observed occurrences
- 53
Results compare scheduled and actual arrival times. Cancelled or diverted flights are excluded. Some flights may be missing from the history.
| Service date | Departure | Arrival | Actual | Arrival delay (minutes) |
|---|---|---|---|---|
| Sep 15, 2026Arrived | Chicago | Kansas City | 34 | |
| Sep 15, 2026Arrived | Las Vegas | Chicago | 98 | |
| Sep 14, 2026Arrived | Chicago | Kansas City | -18 | |
| Sep 14, 2026Arrived | Las Vegas | Chicago | -39 | |
| Sep 13, 2026Arrived | Las Vegas | Chicago | -2 | |
| Sep 12, 2026Arrived | Chicago | Kansas City | 16 | |
| Sep 12, 2026Arrived | Las Vegas | Chicago | -42 | |
| Sep 11, 2026Arrived | Chicago | Kansas City | -21 | |
| Sep 11, 2026Arrived | Las Vegas | Chicago | -23 | |
| Sep 10, 2026Arrived | Chicago | Kansas City | -7 | |
| Sep 10, 2026Arrived | Las Vegas | Chicago | -15 | |
| Sep 9, 2026Arrived | Chicago | Kansas City | 142 | |
| Sep 9, 2026Arrived | Las Vegas | Chicago | -23 | |
| Sep 8, 2026Arrived | Chicago | Kansas City | 19 | |
| Sep 8, 2026Arrived | Las Vegas | Chicago | -3 | |
| Sep 7, 2026Arrived | Chicago | Kansas City | -12 | |
| Sep 7, 2026Arrived | Las Vegas | Chicago | -34 | |
| Sep 6, 2026Arrived | Chicago | Kansas City | -25 | |
| Sep 5, 2026Arrived | Chicago | Kansas City | -21 | |
| Sep 5, 2026Arrived | Las Vegas | Chicago | -44 | |
| Sep 4, 2026Arrived | Chicago | Kansas City | 11 | |
| Sep 4, 2026Arrived | Las Vegas | Chicago | -24 | |
| Sep 3, 2026Arrived | Chicago | Kansas City | 34 | |
| Sep 3, 2026Arrived | Las Vegas | Chicago | -20 | |
| Sep 2, 2026Arrived | Las Vegas | Chicago | -27 | |
| Sep 1, 2026Arrived | Las Vegas | Chicago | -35 | |
| Aug 31, 2026Arrived | Chicago | Kansas City | 187 | |
| Aug 31, 2026Arrived | Las Vegas | Chicago | -32 | |
| Aug 29, 2026Arrived | Chicago | Kansas City | -29 | |
| Aug 29, 2026Arrived | Las Vegas | Chicago | -27 | |
| Aug 28, 2026Arrived | Chicago | Kansas City | -21 | |
| Aug 28, 2026Arrived | Las Vegas | Chicago | 3 | |
| Aug 27, 2026Arrived | Chicago | Kansas City | -12 | |
| Aug 27, 2026Arrived | Las Vegas | Chicago | -18 | |
| Aug 26, 2026Arrived | Chicago | Kansas City | -18 | |
| Aug 26, 2026Arrived | Las Vegas | Chicago | -38 | |
| Aug 25, 2026Arrived | Chicago | Kansas City | 5 | |
| Aug 25, 2026Arrived | Las Vegas | Chicago | -42 | |
| Aug 24, 2026Arrived | Chicago | Kansas City | -19 | |
| Aug 24, 2026Arrived | Las Vegas | Chicago | -12 | |
| Aug 23, 2026Arrived | Chicago | Kansas City | -30 | |
| Aug 23, 2026Arrived | Las Vegas | Chicago | -14 | |
| Aug 21, 2026Arrived | Las Vegas | Chicago | -13 |