PHL (Philadelphia) to BUF (Buffalo) flights arrive on time 73% of the time. The most reliable airline on this route is Frontier Airlines at 84%. 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 → BUF
PHL (Philadelphia) to BUF (Buffalo)
PHL → BUF on-time performance by month
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This route is delayed fairly often. About 73% of flights arrive on schedule.
Delays on this route are most often caused by the incoming plane arriving late.
Accurate?
Frontier Airlines edges out PSA Airlines on this route — 84% vs 71% on time.
Airline Comparison
Frontier Airlines leads at 84% on time; PSA Airlines trails at 71%.
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 ~15 min. Best time: 4 AM (about 5 min).
Arriving at BUF
79% on timeWhen flights into BUF are late, the average delay is 71 minutes. Build buffer if you have ground plans.
If connecting at BUF: TSA is ~13 min right now. Allow at least 60 minutes for a domestic connection.
BUF has a 2.7% cancellation rate — keep the airline app handy for rebooking.
Flight cancelled or delayed?
Check what Frontier Airlines owes you — refund rights, action plan, complaint email. Free.
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Data last updated March 2026. Source: Bureau of Transportation Statistics.