YAFT.LIVE

UAL1877

DEN → SEA · Boeing 737 MAX 7 · United Airlines

Flight

Status
Completed
Arrival confirmed via
ADS-B (callsign change)
Departure
Denver International Airport (DEN) — Denver, United States
Departed
2026-09-22 16:17 UTC
Arrival
Seattle Tacoma International Airport (SEA) — Seattle, United States
Distance flown
1761 km
Straight-line distance
1645 km
Approach distance
62 km

Aircraft

Registration
N17272
Type
Boeing 737 MAX 7
Seats
166 total (96 Economy, 54 Economy Plus, 16 First)

Altitude & speed

Max altitude
36,025 ft
Max ground speed
464 kt
Tracked
3h 48m · 1,749 km
Altitude (ft, max 36,025)
019,45438,9070m30m1h 0m1h 30m2h 0m2h 30m3h 0m3h 30m
Ground speed (kt, max 464)
02515010m30m1h 0m1h 30m2h 0m2h 30m3h 0m3h 30m
Altitude (ft, max 36,025)
019,45438,9070m1h 0m2h 0m3h 0m
Ground speed (kt, max 464)
02515010m1h 0m2h 0m3h 0m

From the ADS-B positions we received; time since the first fix. A dashed stretch is a gap in reception, bridged by a straight line.

Route map

Airline

United Airlines (UAL)

Latest flights

DepartedFlightRouteRegAircraftStatusDistance
2026-10-02 14:08 UTC UAL1877 GJT → DEN
Grand Junction → Denver
 N37413 Boeing 737-900 Completed 458 km
2026-10-01 13:16 UTC UAL1877 GJT → DEN
Grand Junction → Denver
 N75425 Boeing 737-900 Completed 400 km
2026-09-30 13:57 UTC UAL1877 DEN → DEN
Denver → Denver
 N81449 Boeing 737-900 Completed ~4 km est. (2 km recorded)
2026-09-30 13:06 UTC UAL1877 GJT → DEN
Grand Junction → Denver
 N81449 Boeing 737-900 Completed 407 km
2026-09-29 13:09 UTC UAL1877 GJT → DEN
Grand Junction → Denver
 N69885 Boeing 737-900 Completed 404 km
2026-09-28 13:09 UTC UAL1877 GJT → DEN
Grand Junction → Denver
 N61887 Boeing 737-900 Completed 413 km
2026-09-27 13:12 UTC UAL1877 GJT → DEN
Grand Junction → Denver
 N37471 Boeing 737-900 Completed 414 km
2026-09-26 13:10 UTC UAL1877 GJT → DEN
Grand Junction → Denver
 N66841 Boeing 737-900 Completed 414 km
2026-09-25 13:39 UTC UAL1877 GJT → DEN
Grand Junction → Denver
 N77431 Boeing 737-900 Completed 416 km
2026-09-24 13:09 UTC UAL1877 GJT → DEN
Grand Junction → Denver
 N78540 Boeing 737-800 Completed 408 km
2026-09-23 16:09 UTC UAL1877 DEN → SEA
Denver → Seattle
 N27290 Boeing 737 MAX 8 Completed 1752 km
2026-09-23 13:02 UTC UAL1877 GJT → DEN
Grand Junction → Denver
 N37267 Boeing 737-800 Completed 424 km
2026-09-22 16:17 UTC UAL1877 DEN → SEA
Denver → Seattle
 N17272 Boeing 737 MAX 7 Completed 1761 km
2026-09-22 13:07 UTC UAL1877 GJT → DEN
Grand Junction → Denver
 N77525 Boeing 737-800 Completed 416 km
2026-09-21 15:59 UTC UAL1877 DEN → SEA
Denver → Seattle
 N57286 Boeing 737 MAX 8 Completed 1736 km
2026-09-21 13:54 UTC UAL1877 GJT → DEN
Grand Junction → Denver
 N27263 Boeing 737 MAX 8 Completed 414 km
2026-09-20 16:19 UTC UAL1877 DEN → SEA
Denver → Seattle
 N37305 Boeing 737 MAX 8 Completed 1801 km
2026-09-20 13:10 UTC UAL1877 GJT → DEN
Grand Junction → Denver
 N24224 Boeing 737-800 Completed 406 km
2026-09-19 14:07 UTC UAL1877 GJT → DEN
Grand Junction → Denver
 N76529 Boeing 737-800 Completed 449 km
2026-09-18 16:18 UTC UAL1877 DEN → SEA
Denver → Seattle
 N57299 Boeing 737 MAX 8 Completed 1970 km
2026-09-18 13:08 UTC UAL1877 GJT → DEN
Grand Junction → Denver
 N12218 Boeing 737-800 Completed 443 km
2026-09-17 16:03 UTC UAL1877 DEN → SEA
Denver → Seattle
 N27277 Boeing 737 MAX 8 Completed 1972 km
2026-09-17 13:25 UTC UAL1877 GJT → DEN
Grand Junction → Denver
 N87527 Boeing 737-800 Completed 479 km
2026-09-16 15:54 UTC UAL1877 DEN → SEA
Denver → Seattle
 N17344 Boeing 737 MAX 8 Completed 1808 km
2026-09-16 13:04 UTC UAL1877 GJT → DEN
Grand Junction → Denver
 N77518 Boeing 737-800 Completed 432 km
2026-09-15 16:02 UTC UAL1877 DEN → SEA
Denver → Seattle
 N37325 Boeing 737 MAX 8 Completed 1826 km
2026-09-15 13:12 UTC UAL1877 GJT → DEN
Grand Junction → Denver
 N73259 Boeing 737-800 Completed 420 km
2026-09-14 16:07 UTC UAL1877 DEN → SEA
Denver → Seattle
 N17310 Boeing 737 MAX 8 Completed 1913 km
2026-09-14 13:34 UTC UAL1877 GJT → DEN
Grand Junction → Denver
 N34222 Boeing 737-800 Completed 470 km
2026-09-13 16:14 UTC UAL1877 DEN → SEA
Denver → Seattle
 N47343 Boeing 737 MAX 8 Completed 1910 km
2026-09-13 13:05 UTC UAL1877 GJT → DEN
Grand Junction → Denver
 N27205 Boeing 737-800 Completed 441 km
2026-09-12 13:48 UTC UAL1877 GJT → DEN
Grand Junction → Denver
 N33209 Boeing 737-800 Completed 442 km
2026-09-11 15:55 UTC UAL1877 DEN → SEA
Denver → Seattle
 N17310 Boeing 737 MAX 8 Completed 1902 km
2026-09-11 13:07 UTC UAL1877 GJT → DEN
Grand Junction → Denver
 N26232 Boeing 737-800 Completed 447 km
2026-09-10 16:55 UTC UAL1877 GJT → DEN
Grand Junction → Denver
 N36207 Boeing 737-800 Completed 425 km
2026-09-09 13:41 UTC UAL1877 GJT → DEN
Grand Junction → Denver
 N78285 Boeing 737-800 Completed 420 km
2026-09-07 13:03 UTC UAL1877 GJT → DEN
Grand Junction → Denver
 N35271 Boeing 737-800 Completed 409 km
2026-09-06 13:13 UTC UAL1877 GJT → DEN
Grand Junction → Denver
 N73256 Boeing 737-800 Completed 425 km
2026-09-05 13:38 UTC UAL1877 GJT → DEN
Grand Junction → Denver
 N37277 Boeing 737-800 Completed 446 km
2026-09-04 13:18 UTC UAL1877 GJT → DEN
Grand Junction → Denver
 N16217 Boeing 737-800 Completed 425 km
2026-09-03 13:58 UTC UAL1877 GJT → DEN
Grand Junction → Denver
 N13227 Boeing 737-800 Completed 446 km
2026-09-02 13:06 UTC UAL1877 GJT → DEN
Grand Junction → Denver
 N76526 Boeing 737-800 Completed 410 km
2026-09-01 13:12 UTC UAL1877 GJT → DEN
Grand Junction → Denver
 N17233 Boeing 737-800 Completed 430 km
2026-08-31 13:10 UTC UAL1877 GJT → DEN
Grand Junction → Denver
 N33203 Boeing 737-800 Completed 576 km
2026-08-30 13:05 UTC UAL1877 GJT → DEN
Grand Junction → Denver
 N17358 Boeing 737 MAX 8 Completed 401 km
2026-08-29 13:48 UTC UAL1877 GJT → DEN
Grand Junction → Denver
 N18220 Boeing 737-800 Completed 429 km
2026-08-28 13:13 UTC UAL1877 GJT → DEN
Grand Junction → Denver
 N77295 Boeing 737-800 Completed 420 km
2026-08-27 13:11 UTC UAL1877 GJT → DEN
Grand Junction → Denver
 N45440 Boeing 737-900 Completed 433 km
2026-08-26 14:01 UTC UAL1877 GJT → DEN
Grand Junction → Denver
 N78524 Boeing 737-800 Completed 407 km
2026-08-25 13:52 UTC UAL1877 GJT → DEN
Grand Junction → Denver
 N24211 Boeing 737-800 Completed 425 km

← Back to the live map