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SWA4021

DEN → BHM · Boeing 737 MAX 8 · Southwest Airlines

Flight

Status
Completed (landing presumed)
Arrival confirmed via
Inferred (no confirmation)
Departure
Denver International Airport (DEN) — Denver, United States
Est. departure time
2026-09-06 16:56 UTC (approx.)
Arrival
Birmingham-Shuttlesworth International Airport (BHM) — Birmingham, United States
Distance flown
1885 km
Straight-line distance
1740 km
Approach distance
52 km

Aircraft

Registration
N8771D
Type
Boeing 737 MAX 8
Seats
175 total (175 Economy)

Altitude & speed

Max altitude
39,025 ft
Max ground speed
507 kt
Tracked
2h 49m · 1,792 km
Altitude (ft, max 39,025)
021,07442,1470m30m1h 0m1h 30m2h 0m2h 30m
Ground speed (kt, max 507)
02745480m30m1h 0m1h 30m2h 0m2h 30m
Altitude (ft, max 39,025)
021,07442,1470m1h 0m2h 0m
Ground speed (kt, max 507)
02745480m1h 0m2h 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

Southwest Airlines (SWA)

Latest flights

DepartedFlightRouteRegAircraftStatusDistance
2026-10-02 14:22 UTC SWA4021 SMF → SLC
Sacramento → Salt Lake City
 N7828A Boeing 737-700 Completed 937 km
2026-10-01 14:28 UTC SWA4021 SMF → SLC
Sacramento → Salt Lake City
 N7881A Boeing 737-700 Completed 942 km
2026-09-27 20:19 UTC SWA4021 BHM → MDW
Birmingham → Chicago
 N442WN Boeing 737-700 Completed 1023 km
2026-09-27 16:42 UTC SWA4021 DEN → BHM
Denver → Birmingham
 N442WN Boeing 737-700 Completed (landing presumed) 1782 km
2026-09-20 20:15 UTC SWA4021 BHM → MDW
Birmingham → Chicago
 N469WN Boeing 737-700 Completed 1006 km
2026-09-20 16:11 UTC SWA4021 DEN → BHM
Denver → Birmingham
 N469WN Boeing 737-700 Completed (landing presumed) 1816 km
2026-09-13 20:13 UTC SWA4021 BHM → MDW
Birmingham → Chicago
 N481WN Boeing 737-700 Completed (landing presumed) 1072 km
2026-09-13 16:22 UTC SWA4021 DEN → BHM
Denver → Birmingham
 N481WN Boeing 737-700 Completed (landing presumed) 1912 km
2026-09-06 16:59 UTC SWA4021 DEN → BHM
Denver → Birmingham
 N8771D Boeing 737 MAX 8 Completed (landing presumed) 1885 km
2026-08-30 17:02 UTC SWA4021 DEN → MDW
Denver → Chicago
 N927WN Boeing 737-700 Completed 2952 km
2026-08-23 20:07 UTC SWA4021 BHM → MDW
Birmingham → Chicago
 N7823A Boeing 737-700 Completed 1038 km
2026-08-23 16:41 UTC SWA4021 DEN → BHM
Denver → Birmingham
 N7823A Boeing 737-700 Completed (landing presumed) 1894 km
2026-08-16 16:46 UTC SWA4021 DEN → MDW
Denver → Chicago
 N253WN Boeing 737-700 Completed 3771 km

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