Is UAL1877 delayed?
Each route and date is shown separately. Confirm that both airports match your booking.
Service date: · Scheduled departure date (America/Denver)
Arrived
10 min early
Official source · Updated
Departure
Denver
DEN
Actual
Scheduled 10:19
Sep 21
Arrival
Seattle
SEA
Actual
Scheduled 11:48
Sep 21
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 (UTC)
Arrived
19 min late
Official source · Updated
Departure
Grand Junction
GJT
Actual
Scheduled 13:19
Sep 21
Arrival
Denver
DEN
Actual
Scheduled 08:14
Sep 21
Times shown in airport local time
Flight details
Departure · UTC
- Scheduled
- Estimated
- Not available
- Actual
Arrival · UTC
- Scheduled
- Estimated
- Not available
- Actual
GJTDEN
Recent arrivals
Dates below are arrival dates in the destination airport’s time zone. The detailed history uses service dates.
- 10 min early
DEN → SEA
- 32 min early
GJT → DEN
- 11 min early
DEN → SEA
- 30 min early
GJT → DEN
- 10 min early
DEN → SEA
Flight history and details
Aug 25, 2026 — Sep 24, 2026
- Observed arrivals
- 31
- Arrivals over 15 minutes late
- 3
- Observed cancellations
- 0
- Observed occurrences
- 31
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 23, 2026Arrived | Denver | Seattle | -10 | |
| Sep 23, 2026Arrived | Grand Junction | Denver | -32 | |
| Sep 22, 2026Arrived | Denver | Seattle | -11 | |
| Sep 22, 2026Arrived | Grand Junction | Denver | -30 | |
| Sep 21, 2026Arrived | Denver | Seattle | -10 | |
| Sep 21, 2026Arrived | Grand Junction | Denver | 19 | |
| Sep 20, 2026Arrived | Denver | Seattle | -1 | |
| Sep 20, 2026Arrived | Grand Junction | Denver | -29 | |
| Sep 19, 2026Arrived | Grand Junction | Denver | 31 | |
| Sep 18, 2026Arrived | Denver | Seattle | -6 | |
| Sep 18, 2026Arrived | Grand Junction | Denver | -28 | |
| Sep 17, 2026Arrived | Denver | Seattle | -6 | |
| Sep 17, 2026Arrived | Grand Junction | Denver | -6 | |
| Sep 16, 2026Arrived | Denver | Seattle | -20 | |
| Sep 16, 2026Arrived | Grand Junction | Denver | -32 | |
| Sep 15, 2026Arrived | Denver | Seattle | -10 | |
| Sep 15, 2026Arrived | Grand Junction | Denver | -23 | |
| Sep 14, 2026Arrived | Denver | Seattle | 4 | |
| Sep 14, 2026Arrived | Grand Junction | Denver | 1 | |
| Sep 13, 2026Arrived | Denver | Seattle | 0 | |
| Sep 13, 2026Arrived | Grand Junction | Denver | -30 | |
| Sep 12, 2026Arrived | Grand Junction | Denver | 13 | |
| Sep 11, 2026Arrived | Denver | Seattle | 5 | |
| Sep 11, 2026Arrived | Grand Junction | Denver | -30 | |
| Sep 10, 2026Arrived | Grand Junction | Denver | 199 | |
| Sep 9, 2026Arrived | Grand Junction | Denver | 2 | |
| Sep 8, 2026Arrived | Grand Junction | Denver | -24 | |
| Sep 7, 2026Arrived | Grand Junction | Denver | -35 | |
| Sep 6, 2026Arrived | Grand Junction | Denver | -8 | |
| Sep 5, 2026Arrived | Grand Junction | Denver | 1 | |
| Sep 4, 2026Arrived | Grand Junction | Denver | -4 |