Is UA4479 delayed?
No delay reported yet — UA4479 is scheduled to leave Houston at 18:27 on Sep 27 and reach St Louis at 01:10 (Sep 28) (as of Sep 27, 22:25 UTC). Over its last 40 recorded arrivals, 9 landed more than 15 min late.
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 are reported.
Update time unavailable
Departure
Houston
IAH
Scheduled
Sep 27
Arrival
St Louis
STL
Scheduled
Sep 28
Times shown in airport local time
Service date: · Scheduled departure date (America/Chicago)
Think UA4479 runs late today? Delayed is trading at 26¢ — pays out x3.78.
Will United Airlines UAL 4479 from Houston to St Louis arrive on time, be delayed, or be cancelled on Sep 27?Flight details
Departure · UTC
- Scheduled
- Estimated
- Not available
- Actual
- Not available
Arrival · UTC
- Scheduled
- Estimated
- Not available
- Actual
- Not available
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.
34 min early
Official source · Updated
Departure
Philadelphia
PHL
Scheduled
Not available
Arrival
Montreal
YUL
Actual
Scheduled 19:29
Sep 27
Times shown in airport local time
Service date: · Scheduled arrival date; departure time unavailable (UTC)
Flight details
Departure · UTC
- Scheduled
- Not available
- Estimated
- Not available
- Actual
- Not available
Arrival · UTC
- Scheduled
- Estimated
- Actual
Operating flight: AAL4479
Recent arrivals
Dates below are arrival dates in the destination airport’s time zone. The detailed history uses service dates.
- 34 min early
Philadelphia → Montreal
- 138 min late
Houston → St Louis
- 27 min early
Philadelphia → Montreal
- 352 min late
Houston → St Louis
- 27 min early
Philadelphia → Montreal
Flight history and details
Aug 28, 2026 — Sep 27, 2026
- Observed arrivals
- 40
- Arrivals over 15 minutes late
- 9
- Observed cancellations
- 6
- Observed occurrences
- 49
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 27, 2026Arrived | Philadelphia | Montreal | -34 | |
| Sep 26, 2026Arrived | Houston | St Louis | 138 | |
| Sep 26, 2026Arrived | Philadelphia | Montreal | -27 | |
| Sep 25, 2026Arrived | Houston | St Louis | 352 | |
| Sep 25, 2026Arrived | Philadelphia | Montreal | -27 | |
| Sep 24, 2026Arrived | Houston | St Louis | -20 | |
| Sep 24, 2026Arrived | Philadelphia | Montreal | 8 | |
| Sep 23, 2026Arrived | Wichita | Chicago | 28 | |
| Sep 23, 2026Arrived | Philadelphia | Montreal | -16 | |
| Sep 22, 2026Arrived | Wichita | Chicago | -43 | |
| Sep 22, 2026Arrived | Philadelphia | Montreal | -27 | |
| Sep 21, 2026Arrived | Wichita | Chicago | -12 | |
| Sep 21, 2026Cancelled | Philadelphia | Montreal | Not available | Not available |
| Sep 21, 2026Cancelled | Wichita | Chicago | Not available | Not available |
| Sep 20, 2026Cancelled | Wichita | Chicago | Not available | Not available |
| Sep 20, 2026Arrived | Philadelphia | Montreal | 4 | |
| Sep 20, 2026Cancelled | Wichita | Chicago | Not available | Not available |
| Sep 19, 2026Cancelled | Wichita | Chicago | Not available | Not available |
| Sep 18, 2026Cancelled | Wichita | Chicago | Not available | Not available |
| Sep 18, 2026Arrived | Philadelphia | Montreal | -8 | |
| Sep 17, 2026Arrived | Wichita | Chicago | 79 | |
| Sep 17, 2026Arrived | Philadelphia | Montreal | -10 | |
| Sep 16, 2026Arrived | Wichita | Chicago | -13 | |
| Sep 16, 2026Arrived | Philadelphia | Montreal | -18 | |
| Sep 15, 2026Arrived | Wichita | Chicago | 79 | |
| Sep 15, 2026Arrived | Philadelphia | Montreal | -30 | |
| Sep 14, 2026Arrived | Wichita | Chicago | -35 | |
| Sep 14, 2026Arrived | Philadelphia | Montreal | -33 | |
| Sep 13, 2026Arrived | Wichita | Chicago | -5 | |
| Sep 13, 2026Arrived | Philadelphia | Montreal | -28 | |
| Sep 12, 2026Arrived | Wichita | Chicago | -46 | |
| Sep 12, 2026Arrived | Philadelphia | Montreal | -21 | |
| Sep 11, 2026Arrived | Wichita | Chicago | 14 | |
| Sep 11, 2026Arrived | Philadelphia | Montreal | -14 | |
| Sep 10, 2026Arrived | Wichita | Chicago | -20 | |
| Sep 10, 2026Arrived | Philadelphia | Montreal | -30 | |
| Sep 9, 2026Arrived | Wichita | Chicago | 56 | |
| Sep 9, 2026Arrived | Philadelphia | Montreal | 8 | |
| Sep 8, 2026Arrived | Wichita | Chicago | -44 | |
| Sep 7, 2026Arrived | Chicago | St Louis | -15 | |
| Sep 6, 2026Arrived | Chicago | St Louis | -1 | |
| Sep 5, 2026Arrived | Des Moines | Chicago | 51 | |
| Sep 4, 2026Arrived | Chicago | St Louis | 68 | |
| Sep 2, 2026Arrived | Chicago | St Louis | -20 | |
| Aug 30, 2026Arrived | Chicago | St Louis | -14 | |
| Aug 29, 2026Arrived | Chicago | St Louis | 17 |