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F

St. Louis (STL) departure delays

5,463 departures · 53 routes · March 2025 – August 2026

66.96%

Left on time

Within 15 minutes of schedule

1.17%

Cancelled

Share of departures

64 min

When late, late by

Average delayed departure

#121

Rank

Among graded US airports

What the record says about STL

STL is one of the later-running airports in the record. When an airport is this congested the cause is usually structural — runway capacity, airspace, or a hub airline scheduling more departures into a peak than the field can clear — and no airline flying from it escapes entirely.

The airlines flying from here are not equally affected. Delta Air Lines left on time 21.3 points more often than Southwest Airlines from the same airport — which is the clearest evidence available that a delayed departure is not purely the airport's fault.

With 40 routes in the record, STL is a hub, and hubs carry a particular risk: a delay early in the day propagates through every aircraft that was due to fly on afterwards. Morning departures from a hub are reliably better than evening ones.

Which airlines run best out of STL

Airline Departures On time
Delta Air Lines 478 85.5%
American Airlines 526 75.8%
Republic Airways 208 74.6%
United Airlines 270 72.8%
Southwest Airlines 3,319 64.2%

Routes out of STL

STL → DEN Denver 358 flights · 66.38% on time D STL → ATL Atlanta 318 flights · 81.85% on time B STL → ORD Chicago 304 flights · 70.34% on time D STL → DFW Dallas/Fort Worth 240 flights · 65.33% on time F STL → LGA New York 204 flights · 74.36% on time C STL → MCO Orlando 204 flights · 75% on time C STL → DCA Washington 198 flights · 64.55% on time F STL → LAS Las Vegas 180 flights · 54.8% on time F STL → DTW Detroit 173 flights · 71.86% on time D STL → DAL Dallas 170 flights · 56.02% on time F STL → CLT Charlotte 169 flights · 76.51% on time C STL → PHX Phoenix 166 flights · 57.58% on time F STL → MSP Minneapolis 165 flights · 69.94% on time D STL → MDW Chicago 161 flights · 70.25% on time D STL → PHL Philadelphia 147 flights · 77.4% on time C STL → BOS Boston 144 flights · 62.94% on time D STL → HOU Houston 126 flights · 65.08% on time D STL → SEA Seattle 118 flights · 71.19% on time C STL → BWI Baltimore 118 flights · 71.3% on time D STL → BNA Nashville 108 flights · 72.22% on time C STL → TPA Tampa 99 flights · 81.82% on time — STL → MIA Miami 99 flights · 73.74% on time — STL → MCI Kansas City 90 flights · 63.33% on time — STL → EWR Newark 90 flights · 81.4% on time — STL → SLC Salt Lake City 90 flights · 83.33% on time — STL → LAX Los Angeles 88 flights · 69.32% on time — STL → AUS Austin 86 flights · 62.79% on time — STL → FLL Fort Lauderdale 66 flights · 65.15% on time — STL → RSW Fort Myers 65 flights · 72.31% on time — STL → OMA Omaha 64 flights · 65.63% on time — STL → RDU Raleigh/Durham 60 flights · 75% on time — STL → SFO San Francisco 60 flights · 18.33% on time — STL → PIT Pittsburgh 56 flights · 78.57% on time — STL → MSY New Orleans 56 flights · 69.09% on time — STL → MKE Milwaukee 56 flights · 76.79% on time — STL → CMH Columbus 56 flights · 64.29% on time — STL → CLE Cleveland 56 flights · 75% on time — STL → SAT San Antonio 52 flights · 56.86% on time — STL → ECP Panama City 46 flights · 54.35% on time — STL → PDX Portland 38 flights · 76.32% on time —