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

Columbus → San Francisco via Boston: arrives on time 50%

  1. 06:00 CMH → 08:13 BOS
    DL 5663 · Delta, flown by Republic · 2h 13m · 92% on time, 1.4% cancelled
  2. 1h 58m layover in Boston (BOS) · 45 min minimum on one ticket
  3. 10:11 BOS → 13:45 SFO
    DL 860 · Delta · 6h 36m · 51% on time, 0.0% cancelled

Total trip 10h 47m, scheduled departure to arrival (San Francisco is 3 h behind Columbus). Times are local. Both flew on 54 of the last 56 days.

Makes the connection99%The first flight arrived more than 73 minutes late on 1% of the days it flew: too late for the 45-minute minimum connection on a 1h 58m layover.
Arrives on time50%First flight not cancelled (1.4% are) × connection made (99%) × second flight not cancelled (0.0% are) and within 15 minutes (51%).
Total trip10h 47mCMH 06:00 to SFO 13:45, 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.