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SWA4121

PHX → SLC · Boeing 737-800 · Southwest Airlines

For travellers

Departure · Phoenix (PHX)

Terminal 4 · Gate D5
Scheduled 24 Sep 20:50 · Departed 24 Sep 21:35 · +45 min
Board status: Departed
Airborne since 24 Sep 21:24 (ADS-B)

Board data from phx, updated 11688 min ago; times local to each airport.

Flight

Status
Completed
Arrival confirmed via
ADS-B (ground reading)
Departure
Phoenix Sky Harbor International Airport (PHX) — Phoenix, United States
Scheduled departure
2026-09-25 03:50 UTC
Departed
2026-09-25 04:24 UTC
Arrival
Salt Lake City International Airport (SLC) — Salt Lake City, United States
Also flies as
WN4121
Distance flown
896 km
Straight-line distance
818 km
Approach distance
38 km

Aircraft

Registration
N8619F
Type
Boeing 737-800
Seats
175 total (175 Economy)
CO2 (EMEP est., total)
22.4 t (128 kg/pax Economy)

Altitude & speed

Max altitude
36,000 ft
Max ground speed
491 kt
Tracked
1h 25m · 892 km
Altitude (ft, max 36,000)
019,44038,8800m30m1h 0m
Ground speed (kt, max 491)
02655300m30m1h 0m
Altitude (ft, max 36,000)
019,44038,8800m1h 0m
Ground speed (kt, max 491)
02655300m1h 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
2026-09-30 20:19 UTC SWA4121 PHX → SLC
Phoenix → Salt Lake City
 N906WN Boeing 737-700 Completed 855 km
2026-09-29 20:11 UTC SWA4121 PHX → SLC
Phoenix → Salt Lake City
 N454WN Boeing 737-700 Completed 861 km
2026-09-29 05:23 UTC SWA4121 PHX → SLC
Phoenix → Salt Lake City
 N8557Q Boeing 737-800 Completed 891 km
2026-09-26 22:45 UTC SWA4121 PHX → SLC
Phoenix → Salt Lake City
 N8844Q Boeing 737 MAX 8 Completed 852 km
2026-09-26 07:05 UTC SWA4121 PHX → SLC
Phoenix → Salt Lake City
 N8984L Boeing 737-800 Completed 895 km
2026-09-25 04:24 UTC SWA4121 PHX → SLC
Phoenix → Salt Lake City
 N8619F Boeing 737-800 Completed 896 km
2026-09-23 20:10 UTC SWA4121 PHX → SLC
Phoenix → Salt Lake City
 N442WN Boeing 737-700 Completed 876 km
2026-09-22 20:34 UTC SWA4121 PHX → SLC
Phoenix → Salt Lake City
 N964WN Boeing 737-700 Completed 857 km
2026-09-22 04:23 UTC SWA4121 PHX → SLC
Phoenix → Salt Lake City
 N8985Q Boeing 737 MAX 8 Completed 898 km
2026-09-20 23:59 UTC SWA4121 MKE → BNA
Milwaukee → Nashville
 N8741L Boeing 737 MAX 8 Completed 808 km
2026-09-19 23:12 UTC SWA4121 PHX → SLC
Phoenix → Salt Lake City
 N8910Q Boeing 737 MAX 8 Completed 897 km
2026-09-19 03:59 UTC SWA4121 PHX → SLC
Phoenix → Salt Lake City
 N8809L Boeing 737 MAX 8 Completed 903 km
2026-09-18 04:21 UTC SWA4121 PHX → SLC
Phoenix → Salt Lake City
 N8918Q Boeing 737 MAX 8 Completed 923 km
2026-09-16 20:19 UTC SWA4121 PHX → SLC
Phoenix → Salt Lake City
 N265WN Boeing 737-700 Completed 1122 km
2026-09-15 20:14 UTC SWA4121 PHX → SLC
Phoenix → Salt Lake City
 N273WN Boeing 737-700 Completed 909 km
2026-09-15 04:06 UTC SWA4121 PHX → SLC
Phoenix → Salt Lake City
 N8963Q Boeing 737 MAX 8 Completed 909 km
2026-09-14 00:05 UTC SWA4121 MKE → BNA
Milwaukee → Nashville
 N8746Q Boeing 737 MAX 8 Completed 902 km
2026-09-12 23:04 UTC SWA4121 PHX → SLC
Phoenix → Salt Lake City
 N8914Q Boeing 737 MAX 8 Completed 919 km
2026-09-12 05:10 UTC SWA4121 PHX → SLC
Phoenix → Salt Lake City
 N8717M Boeing 737 MAX 8 Completed 983 km
2026-09-11 05:10 UTC SWA4121 PHX → SLC
Phoenix → Salt Lake City
 N8726H Boeing 737 MAX 8 Completed 939 km
2026-09-09 19:53 UTC SWA4121 PHX → SLC
Phoenix → Salt Lake City
 N478WN Boeing 737-700 Completed 891 km
2026-09-08 04:10 UTC SWA4121 PHX → SLC
Phoenix → Salt Lake City
 N8532S Boeing 737-800 Completed 879 km
2026-09-05 23:03 UTC SWA4121 PHX → SLC
Phoenix → Salt Lake City
 N8976K Boeing 737 MAX 8 Completed 945 km
2026-09-05 06:17 UTC SWA4121 PHX → SLC
Phoenix → Salt Lake City
 N8806Q Boeing 737 MAX 8 Completed 931 km
2026-09-04 03:40 UTC SWA4121 PHX → SLC
Phoenix → Salt Lake City
 N8536Z Boeing 737-800 Completed 929 km
2026-09-02 20:20 UTC SWA4121 PHX → SLC
Phoenix → Salt Lake City
 N460WN Boeing 737-700 Completed 955 km
2026-09-01 20:16 UTC SWA4121 PHX → SLC
Phoenix → Salt Lake City
 N7880D Boeing 737-700 Completed 975 km
2026-09-01 03:28 UTC SWA4121 PHX → SLC
Phoenix → Salt Lake City
 N8560Z Boeing 737-800 Completed 955 km
2026-08-30 23:40 UTC SWA4121 MKE → BNA
Milwaukee → Nashville
 N8713M Boeing 737 MAX 8 Completed 840 km
2026-08-29 22:44 UTC SWA4121 PHX → SLC
Phoenix → Salt Lake City
 N8511K Boeing 737-800 Completed 1022 km
2026-08-29 05:12 UTC SWA4121 PHX → SLC
Phoenix → Salt Lake City
 N8312C Boeing 737-800 Completed 908 km
2026-08-28 03:21 UTC SWA4121 PHX → SLC
Phoenix → Salt Lake City
 N8882Q Boeing 737 MAX 8 Completed 938 km
2026-08-26 20:32 UTC SWA4121 PHX → SLC
Phoenix → Salt Lake City
 N245WN Boeing 737-700 Completed 1000 km
2026-08-25 20:09 UTC SWA4121 PHX → SLC
Phoenix → Salt Lake City
 N7736A Boeing 737-700 Completed 899 km
2026-08-25 03:30 UTC SWA4121 PHX → SLC
Phoenix → Salt Lake City
 N8545V Boeing 737-800 Completed 908 km
2026-08-24 00:09 UTC SWA4121 MKE → BNA
Milwaukee → Nashville
 N8694E Boeing 737-800 Completed 892 km
2026-08-22 22:47 UTC SWA4121 PHX → SLC
Phoenix → Salt Lake City
 N8990Q Boeing 737 MAX 8 Completed 1439 km
2026-08-22 04:11 UTC SWA4121 PHX → SLC
Phoenix → Salt Lake City
 N8901Q Boeing 737 MAX 8 Completed 1433 km
2026-08-21 04:00 UTC SWA4121 PHX → SLC
Phoenix → Salt Lake City
 N8561Z Boeing 737-800 Completed 1092 km
2026-08-19 20:09 UTC SWA4121 PHX → SLC
Phoenix → Salt Lake City
 N276WN Boeing 737-700 Completed 2800 km
2026-08-18 20:07 UTC SWA4121 PHX → SLC
Phoenix → Salt Lake City
 N224WN Boeing 737-700 Completed ~3103 km est. (2345 km recorded)
2026-08-18 03:48 UTC SWA4121 PHX → SLC
Phoenix → Salt Lake City
 N8928Q Boeing 737 MAX 8 Completed 1246 km
2026-08-17 01:08 UTC SWA4121 MKE → BNA
Milwaukee → Nashville
 N8742M Boeing 737 MAX 8 Completed 1229 km
2026-08-15 16:56 UTC SWA4121 DAL → SLC
Dallas → Salt Lake City
 N8834L Boeing 737 MAX 8 Completed 5240 km
2026-08-15 03:40 UTC SWA4121 PHX → SLC
Phoenix → Salt Lake City
 N8719Q Boeing 737 MAX 8 Completed ~2362 km est. (1085 km recorded)
2026-08-14 04:12 UTC SWA4121 PHX → SLC
Phoenix → Salt Lake City
 N8839Q Boeing 737 MAX 8 Completed 1582 km
2026-08-14 01:36 UTC SWA4121 SMF → PHX
Sacramento → Phoenix
 N8839Q Boeing 737 MAX 8 Completed 1267 km
2026-08-13 19:10 UTC SWA4121 BNA → SMF
Nashville → Sacramento
 N8839Q Boeing 737 MAX 8 Completed 3678 km
2026-08-12 21:34 UTC SWA4121 BWI → BNA
Baltimore → Nashville
 N8839Q Boeing 737 MAX 8 Completed ~6255 km est. (3956 km recorded)
2026-08-12 20:17 UTC SWA4121 PHX → SLC
Phoenix → Salt Lake City
 N926WN Boeing 737-700 Completed 1083 km

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