YAFT.LIVE

SWA3877

STL → PHX · Boeing 737-800 · Southwest Airlines

Flight

Status
Completed
Arrival confirmed via
ADS-B (callsign change)
Departure
St Louis Lambert International Airport (STL) — St Louis, United States
Est. departure time
2026-09-10 16:41 UTC (approx.)
Arrival
Phoenix Sky Harbor International Airport (PHX) — Phoenix, United States
Distance flown
2243 km
Straight-line distance
2027 km
Approach distance
65 km

Aircraft

Registration
N8677A
Type
Boeing 737-800
Seats
175 total (175 Economy)

Altitude & speed

Max altitude
38,025 ft
Max ground speed
457 kt
Tracked
4h 6m · 2,052 km
Altitude (ft, max 38,025)
020,53441,0670m1h 0m2h 0m3h 0m4h 0m
Ground speed (kt, max 457)
02474940m1h 0m2h 0m3h 0m4h 0m
Altitude (ft, max 38,025)
020,53441,0670m2h 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

Southwest Airlines (SWA)

Latest flights

DepartedFlightRouteRegAircraftStatusDistance
2026-10-02 23:36 UTC SWA3877 SLC → DEN
Salt Lake City → Denver
 N8940Q Boeing 737 MAX 8 Completed 698 km
2026-10-01 22:42 UTC SWA3877 SLC → DEN
Salt Lake City → Denver
 N8608N Boeing 737-800 Completed 759 km
2026-09-30 21:04 UTC SWA3877 PHX → SMF
Phoenix → Sacramento
 N950WN Boeing 737-700 Completed 1147 km
2026-09-30 17:13 UTC SWA3877 STL → PHX
St Louis → Phoenix
 N950WN Boeing 737-700 Completed 2115 km
2026-09-30 15:18 UTC SWA3877 MDW → STL
Chicago → St Louis
 N950WN Boeing 737-700 Completed 474 km
2026-09-29 21:51 UTC SWA3877 PHX → SMF
Phoenix → Sacramento
 N8848Q Boeing 737 MAX 8 Completed 1158 km
2026-09-29 17:22 UTC SWA3877 STL → PHX
St Louis → Phoenix
 N497WN Boeing 737-700 Completed 2115 km
2026-09-29 15:40 UTC SWA3877 MDW → STL
Chicago → St Louis
 N497WN Boeing 737-700 Completed 477 km
2026-09-28 16:54 UTC SWA3877 STL → PHX
St Louis → Phoenix
 N8669B Boeing 737-800 Completed 2110 km
2026-09-28 01:52 UTC SWA3877 LAS → CMH
Las Vegas → Columbus
 N8955Q Boeing 737 MAX 8 Completed 2961 km
2026-09-26 16:59 UTC SWA3877 STL → PHX
St Louis → Phoenix
 N8322X Boeing 737-800 Completed 2127 km
2026-09-25 16:44 UTC SWA3877 STL → PHX
St Louis → Phoenix
 N8694E Boeing 737-800 Completed 2162 km
2026-09-24 16:57 UTC SWA3877 STL → PHX
St Louis → Phoenix
 N8626B Boeing 737-800 Completed 2102 km
2026-09-23 20:50 UTC SWA3877 PHX → SMF
Phoenix → Sacramento
 N7888A Boeing 737-700 Completed 1185 km
2026-09-23 16:57 UTC SWA3877 STL → PHX
St Louis → Phoenix
 N7888A Boeing 737-700 Completed 2106 km
2026-09-23 15:21 UTC SWA3877 MDW → STL
Chicago → St Louis
 N7888A Boeing 737-700 Completed 454 km
2026-09-22 20:51 UTC SWA3877 PHX → SMF
Phoenix → Sacramento
 N8861Q Boeing 737 MAX 8 Completed 1152 km
2026-09-22 17:07 UTC SWA3877 STL → PHX
St Louis → Phoenix
 N7843A Boeing 737-700 Completed 2148 km
2026-09-22 15:21 UTC SWA3877 MDW → STL
Chicago → St Louis
 N7843A Boeing 737-700 Completed 485 km
2026-09-21 16:43 UTC SWA3877 STL → PHX
St Louis → Phoenix
 N8317M Boeing 737-800 Completed 2119 km
2026-09-21 01:52 UTC SWA3877 LAS → CMH
Las Vegas → Columbus
 N8510E Boeing 737-800 Completed 2893 km
2026-09-19 16:21 UTC SWA3877 STL → PHX
St Louis → Phoenix
 N8907L Boeing 737 MAX 8 Completed 2233 km
2026-09-18 16:21 UTC SWA3877 STL → PHX
St Louis → Phoenix
 N8660A Boeing 737-800 Completed 2206 km
2026-09-17 17:04 UTC SWA3877 STL → PHX
St Louis → Phoenix
 N8670A Boeing 737-800 Completed 2222 km
2026-09-16 22:10 UTC SWA3877 PHX → SMF
Phoenix → Sacramento
 N7861J Boeing 737-700 Completed 1240 km
2026-09-16 17:22 UTC SWA3877 STL → PHX
St Louis → Phoenix
 N7861J Boeing 737-700 Completed 2844 km
2026-09-16 15:30 UTC SWA3877 MDW → STL
Chicago → St Louis
 N7861J Boeing 737-700 Completed 498 km
2026-09-15 21:53 UTC SWA3877 PHX → SMF
Phoenix → Sacramento
 N436WN Boeing 737-700 Completed 1170 km
2026-09-15 17:56 UTC SWA3877 STL → PHX
St Louis → Phoenix
 N436WN Boeing 737-700 Completed 2240 km
2026-09-15 16:09 UTC SWA3877 MDW → STL
Chicago → St Louis
 N436WN Boeing 737-700 Completed 472 km
2026-09-14 17:08 UTC SWA3877 STL → PHX
St Louis → Phoenix
 N8759Q Boeing 737 MAX 8 Completed 2367 km
2026-09-14 02:03 UTC SWA3877 LAS → CMH
Las Vegas → Columbus
 N8678E Boeing 737-800 Completed 3142 km
2026-09-12 16:53 UTC SWA3877 STL → PHX
St Louis → Phoenix
 N8540V Boeing 737-800 Completed 2227 km
2026-09-11 16:50 UTC SWA3877 STL → PHX
St Louis → Phoenix
 N8718Q Boeing 737 MAX 8 Completed 2215 km
2026-09-10 16:56 UTC SWA3877 STL → PHX
St Louis → Phoenix
 N8677A Boeing 737-800 Completed 2243 km
2026-09-09 20:19 UTC SWA3877 PHX → SMF
Phoenix → Sacramento
 N7847A Boeing 737-700 Completed 1204 km
2026-09-09 17:00 UTC SWA3877 STL → PHX
St Louis → Phoenix
 N570WN Boeing 737-700 Completed 2183 km
2026-09-09 15:16 UTC SWA3877 MDW → STL
Chicago → St Louis
 N570WN Boeing 737-700 Completed 491 km
2026-09-07 16:57 UTC SWA3877 STL → PHX
St Louis → Phoenix
 N9009U Boeing 737 MAX 8 Completed 2258 km
2026-09-07 00:10 UTC SWA3877 LAS → CMH
Las Vegas → Columbus
 N8891Q Boeing 737 MAX 8 Completed 3060 km
2026-09-05 16:27 UTC SWA3877 STL → PHX
St Louis → Phoenix
 N8675A Boeing 737-800 Completed 2161 km
2026-09-04 16:21 UTC SWA3877 STL → PHX
St Louis → Phoenix
 N8630B Boeing 737-800 Completed 2139 km
2026-09-03 17:55 UTC SWA3877 STL → PHX
St Louis → Phoenix
 N8303R Boeing 737-800 Completed 2180 km
2026-09-02 21:08 UTC SWA3877 PHX → SMF
Phoenix → Sacramento
 N269WN Boeing 737-700 Completed 1207 km
2026-09-02 17:09 UTC SWA3877 STL → PHX
St Louis → Phoenix
 N908WN Boeing 737-700 Completed 2223 km
2026-09-02 15:26 UTC SWA3877 MDW → STL
Chicago → St Louis
 N908WN Boeing 737-700 Completed 457 km
2026-09-01 20:58 UTC SWA3877 PHX → SMF
Phoenix → Sacramento
 N282WN Boeing 737-700 Completed 1183 km
2026-09-01 17:06 UTC SWA3877 STL → PHX
St Louis → Phoenix
 N282WN Boeing 737-700 Completed 2260 km
2026-09-01 15:23 UTC SWA3877 MDW → STL
Chicago → St Louis
 N282WN Boeing 737-700 Completed 482 km
2026-08-31 17:06 UTC SWA3877 STL → PHX
St Louis → Phoenix
 N8546V Boeing 737-800 Completed 2274 km

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