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F

Baltimore (BWI) departure delays

8,045 departures · 70 routes · March 2025 – August 2026

65.61%

Left on time

Within 15 minutes of schedule

1.16%

Cancelled

Share of departures

53 min

When late, late by

Average delayed departure

#126

Rank

Among graded US airports

What the record says about BWI

BWI 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 18.9 points more often than Frontier 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, BWI 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 BWI

Airline Departures On time
Delta Air Lines 462 84.8%
American Airlines 284 80.4%
United Airlines 387 70.4%
Southwest Airlines 6,231 69.4%
Frontier Airlines 388 65.9%

Routes out of BWI

BWI → ATL Atlanta 480 flights · 78.11% on time C BWI → MCO Orlando 362 flights · 72.08% on time D BWI → BOS Boston 302 flights · 73.91% on time C BWI → CLT Charlotte 259 flights · 82.03% on time B BWI → DEN Denver 248 flights · 62.2% on time D BWI → ORD Chicago 239 flights · 76.29% on time C BWI → TPA Tampa 210 flights · 77.4% on time C BWI → DTW Detroit 203 flights · 79.4% on time C BWI → FLL Fort Lauderdale 186 flights · 71.27% on time D BWI → MIA Miami 179 flights · 69.66% on time D BWI → MDW Chicago 171 flights · 69.46% on time D BWI → RDU Raleigh/Durham 154 flights · 80.26% on time C BWI → DAL Dallas 154 flights · 62.67% on time D BWI → PVD Providence 150 flights · 81.63% on time B BWI → BUF Buffalo 150 flights · 76.87% on time C BWI → ALB Albany 149 flights · 78.38% on time C BWI → BNA Nashville 147 flights · 70.34% on time D BWI → MHT Manchester 145 flights · 84.14% on time B BWI → BDL Hartford 145 flights · 78.62% on time B BWI → LAX Los Angeles 145 flights · 50.34% on time F BWI → MSP Minneapolis 140 flights · 72.99% on time D BWI → ORF Norfolk 139 flights · 70.5% on time C BWI → LAS Las Vegas 139 flights · 65.47% on time D BWI → ISP Islip 138 flights · 77.37% on time C BWI → PWM Portland 118 flights · 78.63% on time C BWI → JAX Jacksonville 115 flights · 66.37% on time D BWI → IND Indianapolis 114 flights · 70.18% on time C BWI → DFW Dallas/Fort Worth 114 flights · 62.62% on time F BWI → HOU Houston 113 flights · 69.37% on time D BWI → STL St. Louis 111 flights · 76.36% on time C BWI → SJU San Juan 109 flights · 62.04% on time D BWI → CHS Charleston 107 flights · 75.47% on time C BWI → AUS Austin 104 flights · 66.02% on time D BWI → SAN San Diego 103 flights · 50.98% on time F BWI → IAH Houston 103 flights · 72.28% on time C BWI → RSW Fort Myers 94 flights · 68.48% on time — BWI → MYR Myrtle Beach 94 flights · 75% on time — BWI → SRQ Sarasota/Bradenton 93 flights · 81.32% on time — BWI → PBI West Palm Beach/Palm Beach 93 flights · 78.49% on time — BWI → ROC Rochester 90 flights · 66.29% on time —