WN3721 Flight Status Southwest Airlines: Sacramento to St. Louis (SWA3721)

SMF Sacramento

Scheduled
10:45
Actual
11:04

Terminal: B | Gate: 21

Departure: Sat, Nov 7, 2026 · local time PST

Sacramento International Airport (SMF)

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STL St. Louis

Scheduled
16:20
Actual
16:22

Terminal: 2 | Gate: E38

Arrival: Sat, Nov 7, 2026 · local time CST

St. Louis Lambert International Airport (STL)

All STL Arrivals >

Landed 12h 20m ago 100%

SMF 11:04 STL 16:22

2,695 km (1,675 mi) flown

Route map SMF to STL Map of the great-circle route from Sacramento International Airport, United States to St. Louis Lambert International Airport, United States, 2695 km. The plane shows an estimated position based on departure and arrival times. Map data: Natural Earth. UNITED STATES SMF STL Map data: Natural Earth

Estimated position based on departure and arrival times, not live tracking. Times are local at each airport.

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Distance: 2695 km / 1675 miles · Scheduled Duration: 03:35 · Actual Duration: 03:18

WN 3721 Flight Status & Schedule Southwest Airlines Sacramento to St. Louis

Date From To Departure Arrival Status Details
Nov 07 SMF STL 11:04 16:22 Landed Track >

Southwest Airlines flight WN 3721 links Sacramento and St. Louis, 2,695 km (1,675 mi) apart, and flies once a week, on Saturdays. The timetable allows 3 h 35 min; there is not enough recent history yet to say how long it usually takes. Yesterday it left 19 minutes late and still landed at 16:22, just 2 minutes behind schedule.

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About WN 3721

Route
Sacramento International Airport SMF to St. Louis Lambert International Airport STL
Distance
2,695 km (1,675 mi)
Scheduled flight time
3 h 35 min
Flies
Sat

WN 3721 FAQ

How long is the WN3721 flight?
The timetable allows 3 h 35 min. Sacramento to St. Louis is 2,695 km (1,675 mi).
Which days does WN3721 fly?
Once a week, on Saturdays, based on the schedule of the last 7 days.
What other flight numbers does WN3721 have?
Also listed as SWA3721 (Southwest Airlines' ICAO code) and WN 3721.

WN3721 and Sacramento SMF to St. Louis STL Flights

Other flights departing from Sacramento SMF: OO3041, WN1400, WN541

Other flights arriving at St. Louis STL: WN2024, WN2294, WN2544, WN399

All flights connecting Sacramento SMF to St. Louis STL.