Connection · one ticket · schedule Jun 6 – Jul 31, 2026 · records Aug 2025 – Jul 2026

St Louis → Boston via Dallas-Fort Worth: arrives on time 24%

  1. 13:14 STL → 15:10 DFW
    AA 5655 · American, flown by PSA · 1h 56m · 63% on time, 4.3% cancelled
  2. 54m layover in Dallas-Fort Worth (DFW) · 45 min minimum on one ticket
  3. 16:04 DFW → 20:50 BOS
    AA 1048 · American · 3h 46m · 44% on time, 2.2% cancelled

Total trip 6h 36m, scheduled departure to arrival (Boston is 1 h ahead of St Louis). Times are local. Both flew on 55 of the last 56 days.

Makes the connection59%The first flight arrived more than 9 minutes late on 41% of the days it flew: too late for the 45-minute minimum connection on a 54m layover.
Arrives on time24%First flight not cancelled (4.3% are) × connection made (59%) × second flight not cancelled (2.2% are) and within 15 minutes (44%).
Total trip6h 36mSTL 13:14 to BOS 20:50, 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.