PHL (Philadelphia) to MDW (Chicago) flights arrive on time 77% of the time. The most reliable airline on this route is Southwest Airlines at 79%. The average delay is 70 minutes. Delays on this route are most often caused by the incoming plane arriving late.
Source: Bureau of Transportation Statistics. Updated March 2026.PHL → MDW
PHL (Philadelphia) to MDW (Chicago)
PHL → MDW on-time performance by month
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This route is on time most of the time. About 77% of flights arrive on schedule.
Delays on this route are most often caused by the incoming plane arriving late.
Accurate?
Southwest Airlines edges out Frontier Airlines on this route — 79% vs 72% on time.
Airline Comparison
Southwest Airlines leads at 79% on time; Frontier Airlines trails at 72%.
Accurate?
Good to know
Departing from PHL
79% on timeExpect ~19 min sitting on the taxiway after your gate pushes back. PHL has long runway queues.
TSA is currently ~5 min. Best time: 4 AM (about 5 min).
Arriving at MDW
78% on timeWhen flights into MDW are late, the average delay is 56 minutes. Build buffer if you have ground plans.
If connecting at MDW: TSA is ~5 min right now. Allow at least 60 minutes for a domestic connection.
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Data last updated March 2026. Source: Bureau of Transportation Statistics.