PHL (Philadelphia) to ORD (Chicago) flights arrive on time 77% of the time. The most reliable airline on this route is United Airlines at 81%. The average delay is 88 minutes. Delays on this route are most often caused by the incoming plane arriving late.
Source: Bureau of Transportation Statistics. Updated April 2026.PHL → ORD
PHL (Philadelphia) to ORD (Chicago)
PHL → ORD on-time performance by month
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JanFebMarAprMayJunJulAugSepOctNovDec
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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?
United Airlines is significantly more reliable on this route at 81% on time vs Frontier Airlines at 60%.
Airline Comparison
United Airlines leads at 81% on time; Frontier Airlines trails at 60%.
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 ~30 min. Best time: 4 AM (about 5 min).
Arriving at ORD
80% on timeWhen flights into ORD are late, the average delay is 76 minutes. Build buffer if you have ground plans.
If connecting at ORD: TSA is ~33 min right now. Allow at least 60 minutes for a domestic connection.
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Data last updated April 2026. Source: Bureau of Transportation Statistics.