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

Boston → Seattle via Las Vegas: arrives on time 87%

  1. 07:50 BOS → 10:31 LAS
    DL 497 · Delta · 5h 41m · 83% on time, 1.1% cancelled
  2. 3h 04m layover in Las Vegas (LAS) · 45 min minimum on one ticket
  3. 13:35 LAS → 16:23 SEA
    DL 2905 · Delta · 2h 48m · 89% on time, 0.5% cancelled

Total trip 11h 33m, scheduled departure to arrival (Seattle is 3 h behind Boston). Times are local. Both flew on 56 of the last 56 days.

Makes the connection99%The first flight arrived more than 139 minutes late on 1% of the days it flew: too late for the 45-minute minimum connection on a 3h 04m layover.
Arrives on time87%First flight not cancelled (1.1% are) × connection made (99%) × second flight not cancelled (0.5% are) and within 15 minutes (89%).
Total trip11h 33mBOS 07:50 to SEA 16:23, 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.