Connection · one ticket · schedule Jun 6 – Jul 31, 2026 · records Aug 2025 – Jul 2026
Philadelphia → Knoxville via Dulles: arrives on time 77%
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06:10 PHL → 07:19 IADUA 3693 · United, flown by Republic · 1h 09m · 97% on time, 1.4% cancelled
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1h 41m layover in Dulles (IAD) · 45 min minimum on one ticket
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09:00 IAD → 10:42 TYSUA 4257 · United, flown by CommuteAir · 1h 42m · 80% on time, 0.9% cancelled
Total trip 4h 32m, scheduled departure to arrival. Times are local. Both flew on 55 of the last 56 days.
Makes the connection99%The first flight arrived more than 56 minutes late on 1% of the days it flew: too late for the 45-minute minimum connection on a 1h 41m layover.
Arrives on time77%First flight not cancelled (1.4% are) × connection made (99%) × second flight not cancelled (0.9% are) and within 15 minutes (80%).
Total trip4h 32mPHL 06:10 to TYS 10:42, layover included
Not yet counted: the second flight also leaving late (which helps), gate-to-gate distance at the hub, and rebooking after a missed connection.