YAFT.LIVE

UAL638

SFO → HNL · Boeing 737 MAX 9 · United Airlines

Flight

Status
Completed
Arrival confirmed via
ADS-B (ground reading)
Departure
San Francisco International Airport (SFO) — San Francisco, United States
Departed
2026-09-26 02:35 UTC
Arrival
Daniel K Inouye International Airport (HNL) — Honolulu, United States
Distance flown
3928 km
Straight-line distance
3857 km
Approach distance
84 km

Aircraft

Registration
N77552
Type
Boeing 737 MAX 9
Seats
179 total (117 Economy, 42 Economy Plus, 20 First)

Altitude & speed

Max altitude
34,025 ft
Max ground speed
457 kt
Tracked
5h 45m · 3,927 km
Altitude (ft, max 34,025)
018,37436,7470m1h 0m2h 0m3h 0m4h 0m5h 0m
Ground speed (kt, max 457)
02474940m1h 0m2h 0m3h 0m4h 0m5h 0m
Altitude (ft, max 34,025)
018,37436,7470m2h 0m4h 0m
Ground speed (kt, max 457)
02474940m2h 0m4h 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
2026-10-03 07:02 UTC UAL638 ? → HNL
? → Honolulu
 N77558 Boeing 737 MAX 9 Completed 352 km
2026-10-03 02:19 UTC UAL638 SFO → HNL
San Francisco → Honolulu
 N77558 Boeing 737 MAX 9 Completed (landing confirmed by airport data) ~3911 km est. (397 km recorded)
2026-10-02 07:01 UTC UAL638 ? → HNL
? → Honolulu
 N77552 Boeing 737 MAX 9 Completed 273 km
2026-10-02 02:12 UTC UAL638 SFO → HNL
San Francisco → Honolulu
 N77552 Boeing 737 MAX 9 Completed (landing confirmed by airport data) ~3911 km est. (373 km recorded)
2026-10-01 06:52 UTC UAL638 ? → HNL
? → Honolulu
 N77573 Boeing 737 MAX 9 Completed 350 km
2026-10-01 02:25 UTC UAL638 SFO → HNL
San Francisco → Honolulu
 N77573 Boeing 737 MAX 9 Completed (landing confirmed by airport data) ~3907 km est. (440 km recorded)
2026-09-30 02:31 UTC UAL638 SFO → HNL
San Francisco → Honolulu
 N17435 Boeing 737 MAX 9 Completed 3941 km
2026-09-29 02:19 UTC UAL638 SFO → HNL
San Francisco → Honolulu
 N17406 Boeing 737 MAX 9 Completed 3920 km
2026-09-28 02:17 UTC UAL638 SFO → HNL
San Francisco → Honolulu
 N37545 Boeing 737 MAX 9 Completed 3990 km
2026-09-27 02:28 UTC UAL638 SFO → HNL
San Francisco → Honolulu
 N17454 Boeing 737 MAX 9 Completed 3945 km
2026-09-26 02:35 UTC UAL638 SFO → HNL
San Francisco → Honolulu
 N77552 Boeing 737 MAX 9 Completed 3928 km
2026-09-25 02:42 UTC UAL638 SFO → HNL
San Francisco → Honolulu
 N77552 Boeing 737 MAX 9 Completed 3926 km
2026-09-23 15:57 UTC UAL638 DCA → ORD
Washington → Chicago
 N13718 Boeing 737-700 Completed 1122 km
2026-09-22 17:47 UTC UAL638 ORD → ORD
Chicago → Chicago
 N38727 Boeing 737-700 Completed ~6 km est. (3 km recorded)
2026-09-22 15:54 UTC UAL638 DCA → ORD
Washington → Chicago
 N38727 Boeing 737-700 Completed 1124 km
2026-09-21 15:52 UTC UAL638 DCA → ORD
Washington → Chicago
 N27734 Boeing 737-700 Completed 1171 km
2026-09-18 15:54 UTC UAL638 DCA → ORD
Washington → Chicago
 N17363 Boeing 737 MAX 8 Completed 1166 km
2026-09-17 17:57 UTC UAL638 DCA → ORD
Washington → Chicago
 N27734 Boeing 737-700 Completed 1302 km
2026-09-16 18:48 UTC UAL638 ORD → ORD
Chicago → Chicago
 N15751 Boeing 737-700 Completed 5 km
2026-09-16 16:52 UTC UAL638 DCA → ORD
Washington → Chicago
 N15751 Boeing 737-700 Completed 1185 km
2026-09-15 17:43 UTC UAL638 DCA → ORD
Washington → Chicago
 N39726 Boeing 737-700 Completed 1151 km
2026-09-14 15:51 UTC UAL638 DCA → ORD
Washington → Chicago
 N17753 Boeing 737-700 Completed 1167 km
2026-09-13 15:52 UTC UAL638 DCA → ORD
Washington → Chicago
 N33292 Boeing 737-800 Completed 1118 km
2026-09-12 15:57 UTC UAL638 DCA → ORD
Washington → Chicago
 N12218 Boeing 737-800 Completed 1106 km
2026-09-11 15:53 UTC UAL638 DCA → ORD
Washington → Chicago
 N16713 Boeing 737-700 Completed 1162 km
2026-09-10 15:48 UTC UAL638 DCA → ORD
Washington → Chicago
 N16713 Boeing 737-700 Completed 1192 km
2026-09-09 15:55 UTC UAL638 DCA → ORD
Washington → Chicago
 N13720 Boeing 737-700 Completed 1105 km
2026-09-07 22:16 UTC UAL638 DEN → TPA
Denver → Tampa
 N77296 Boeing 737-800 Completed 2632 km
2026-09-06 22:10 UTC UAL638 DEN → TPA
Denver → Tampa
 N17229 Boeing 737-800 Completed 2644 km
2026-09-05 22:21 UTC UAL638 DEN → TPA
Denver → Tampa
 N17430 Boeing 737 MAX 9 Completed 2624 km
2026-09-04 22:17 UTC UAL638 DEN → TPA
Denver → Tampa
 N27213 Boeing 737-800 Completed 2496 km
2026-09-03 22:23 UTC UAL638 DEN → TPA
Denver → Tampa
 N37290 Boeing 737-800 Completed 2570 km
2026-09-02 22:11 UTC UAL638 DEN → TPA
Denver → Tampa
 N17229 Boeing 737-800 Completed 2769 km
2026-09-01 22:06 UTC UAL638 DEN → TPA
Denver → Tampa
 N37281 Boeing 737-800 Completed 2586 km
2026-08-31 22:16 UTC UAL638 DEN → TPA
Denver → Tampa
 N77587 Boeing 737 MAX 9 Completed 2639 km
2026-08-30 22:13 UTC UAL638 DEN → TPA
Denver → Tampa
 N13227 Boeing 737-800 Completed 2736 km
2026-08-29 22:08 UTC UAL638 DEN → TPA
Denver → Tampa
 N34282 Boeing 737-800 Completed 2633 km
2026-08-28 22:31 UTC UAL638 DEN → TPA
Denver → Tampa
 N18243 Boeing 737-800 Completed 2648 km
2026-08-27 22:20 UTC UAL638 DEN → TPA
Denver → Tampa
 N17341 Boeing 737 MAX 8 Completed 2513 km
2026-08-27 00:13 UTC UAL638 DEN → TPA
Denver → Tampa
 N78524 Boeing 737-800 Completed 2641 km
2026-08-25 22:05 UTC UAL638 DEN → TPA
Denver → Tampa
 N73270 Boeing 737-800 Completed 2574 km
2026-08-24 22:16 UTC UAL638 DEN → TPA
Denver → Tampa
 N76522 Boeing 737-800 Completed 2653 km
2026-08-23 23:35 UTC UAL638 DEN → TPA
Denver → Tampa
 N75435 Boeing 737-900 Completed 2625 km
2026-08-22 22:17 UTC UAL638 DEN → TPA
Denver → Tampa
 N87507 Boeing 737-800 Completed 4046 km
2026-08-21 22:38 UTC UAL638 DEN → TPA
Denver → Tampa
 N76288 Boeing 737-800 Completed 3969 km
2026-08-20 22:24 UTC UAL638 DEN → TPA
Denver → Tampa
 N87531 Boeing 737-800 Completed 3916 km
2026-08-19 22:22 UTC UAL638 DEN → TPA
Denver → Tampa
 N17456 Boeing 737 MAX 9 Completed 4199 km
2026-08-18 22:10 UTC UAL638 DEN → TPA
Denver → Tampa
 N76288 Boeing 737-800 Completed 3698 km
2026-08-17 22:26 UTC UAL638 DEN → TPA
Denver → Tampa
 N35204 Boeing 737-800 Completed 3654 km
2026-08-16 22:09 UTC UAL638 DEN → TPA
Denver → Tampa
 N73251 Boeing 737-800 Completed 4028 km

← Back to the live map