Is UA1599 delayed?
Each route and date is shown separately. Confirm that both airports match your booking.
Service date: · Scheduled departure date (America/Denver)
Arrived
7 min late
Official source · Updated
Departure
Denver
DEN
Actual
Scheduled 12:06
Sep 10
Arrival
Houston
IAH
Actual
Scheduled 15:09
Sep 10
Times shown in airport local time
Flight details
Departure · UTC
- Scheduled
- Estimated
- Not available
- Actual
Arrival · UTC
- Scheduled
- Estimated
- Not available
- Actual
Service date: · Scheduled departure date (America/Los_Angeles)
Arrived
22 min early
Official source · Updated
Departure
San Francisco
SFO
Actual
Scheduled 06:34
Sep 10
Arrival
Denver
DEN
Actual
Scheduled 09:55
Sep 10
Times shown in airport local time
Flight details
Departure · UTC
- Scheduled
- Estimated
- Not available
- Actual
Arrival · UTC
- Scheduled
- Estimated
- Not available
- Actual
Recent arrivals
Dates below are arrival dates in the destination airport’s time zone. The detailed history uses service dates.
- 28 min early
DEN → IAH
- 26 min early
SFO → DEN
- 16 min early
DEN → IAH
- 18 min late
SFO → DEN
- 9 min early
DEN → IAH
Flight history and details
Aug 22, 2026 — Sep 21, 2026
- Observed arrivals
- 37
- Arrivals over 15 minutes late
- 4
- Observed cancellations
- 0
- Observed occurrences
- 38
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 21, 2026Arrived | Denver | Houston | -28 | |
| Sep 21, 2026Arrived | San Francisco | Denver | -26 | |
| Sep 20, 2026Arrived | Denver | Houston | -16 | |
| Sep 20, 2026Arrived | San Francisco | Denver | 18 | |
| Sep 19, 2026Arrived | Denver | Houston | -9 | |
| Sep 18, 2026Arrived | Denver | Houston | -1 | |
| Sep 18, 2026Arrived | San Francisco | Denver | -7 | |
| Sep 17, 2026Arrived | Denver | Houston | -13 | |
| Sep 17, 2026Arrived | San Francisco | Denver | -25 | |
| Sep 16, 2026Arrived | Denver | Houston | -19 | |
| Sep 15, 2026Arrived | Denver | Houston | 11 | |
| Sep 14, 2026Arrived | Denver | Houston | 28 | |
| Sep 14, 2026Arrived | San Francisco | Denver | -21 | |
| Sep 13, 2026Arrived | Denver | Houston | -11 | |
| Sep 13, 2026Arrived | San Francisco | Denver | -23 | |
| Sep 12, 2026Arrived | Denver | Houston | -4 | |
| Sep 11, 2026Arrived | Denver | Houston | -20 | |
| Sep 11, 2026Arrived | San Francisco | Denver | -23 | |
| Sep 10, 2026Arrived | Denver | Houston | 7 | |
| Sep 10, 2026Arrived | San Francisco | Denver | -22 | |
| Sep 9, 2026Arrived | Denver | Houston | -20 | |
| Sep 8, 2026Arrived | Denver | Houston | -14 | |
| Sep 7, 2026Arrived | Denver | Houston | -17 | |
| Sep 6, 2026Arrived | Denver | Houston | -8 | |
| Sep 5, 2026Arrived | Denver | Houston | 10 | |
| Sep 4, 2026Arrived | Denver | Houston | -2 | |
| Sep 3, 2026Arrived | Denver | Houston | 249 | |
| Sep 1, 2026Arrived | Denver | Houston | 28 | |
| Aug 31, 2026Arrived | Denver | Houston | -6 | |
| Aug 30, 2026Arrived | Denver | Houston | -20 | |
| Aug 29, 2026Arrived | Denver | Houston | -12 | |
| Aug 28, 2026Arrived | Denver | Houston | -13 | |
| Aug 27, 2026Arrived | Denver | Houston | -16 | |
| Aug 26, 2026Arrived | Denver | Houston | -19 | |
| Aug 25, 2026Arrived | Denver | Houston | 0 | |
| Aug 24, 2026Arrived | Denver | Houston | -17 | |
| Aug 23, 2026Arrived | Denver | Houston | -23 |