UAL123

Or instead of overnighting in MIA, you could overnight in Chicago, Dallas, Nashville, Richmond, Washington, Raleigh, New Orleans, Fort Myers, or Atlanta. If you spent the night in MIA there is no nonstop flight to STL the next day until 3:00pm.
Overnight in ORD
Sat.
5:45pm-7:45pm STT-MIA
9:25pm-11:40pm MIA-ORD
Sun.
6:20am-7:30am ORD-STL

Overnight in DFW
Sat.
5:45pm-7:45pm STT-MIA
8:40pm-10:50pm MIA-DFW
Sun.
7:00am-8:35am DFW-STL

Overnight in BNA
Sat.
5:45pm-7:45pm STT-MIA
10:50pm-12:05am MIA-BNA
Sun.
6:40am-7:55am BNA-STL

Overnight in RIC
Sat.
5:45pm-7:45pm STT-MIA
9:10pm-11:30pm MIA-RIC
Sun.
6:25am-7:40am RIC-STL

Overnight in DCA
Sat.
5:45pm-7:45pm STT-MIA
9:55pm-12:15am MIA-DCA
Sun.
6:50am-8:10am DCA-STL

Overnight in RDU
Sat.
5:45pm-7:45pm STT-MIA
8:45pm-10:50pm MIA-RDU
Sun.
7:10am-8:20am RDU-STL

Overnight in MSY
Sat.
5:45pm-7:45pm STT-MIA
10:45pm-11:50pm MIA-MSY
Sun.
7:05am-9:00am MSY-STL

Overnight in RSW
Sat.
5:45pm-7:45pm STT-MIA
9:00pm-9:55pm MIA-RSW
Sun.
9:30am-11:10am RSW-STL

Overnight in ATL
Sat.
5:45pm-7:45pm STT-MIA
10:20pm-12:15am MIA-ATL
Sun.
9:15am-10:10am ATL-STL