Connection · one ticket · schedule Jun 6 – Jul 31, 2026 · records Aug 2025 – Jul 2026
Houston → Knoxville via Dallas-Fort Worth: arrives on time 14%
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14:04 IAH → 15:30 DFWAA 2512 · American · 1h 26m · 49% on time, 3.2% cancelled
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50m layover in Dallas-Fort Worth (DFW) · 45 min minimum on one ticket
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16:20 DFW → 19:30 TYSAA 644 · American · 2h 10m · 40% on time, 7.3% cancelled
Total trip 4h 26m, scheduled departure to arrival (Knoxville is 1 h ahead of Houston). Times are local. Both flew on 39 of the last 56 days.
Makes the connection39%The first flight arrived more than 5 minutes late on 61% of the days it flew: too late for the 45-minute minimum connection on a 50m layover.
Arrives on time14%First flight not cancelled (3.2% are) × connection made (39%) × second flight not cancelled (7.3% are) and within 15 minutes (40%).
Total trip4h 26mIAH 14:04 to TYS 19:30, layover included
Tight connection: often missed. The first flight is late enough to miss it on more than 1 day in 4.
Not yet counted: the second flight also leaving late (which helps), gate-to-gate distance at the hub, and rebooking after a missed connection.