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

San Francisco → Columbus via New York: arrives on time 47%

11:30 SFO → 20:20 JFK

DL 668 · Delta · 5h 50m · 76% on time, 2.9% cancelled
55m layover in New York (JFK) · 45 min minimum on one ticket
21:15 JFK → 23:28 CMH

DL 5658 · Delta, flown by Republic · 2h 14m · 78% on time, 10.8% cancelled

Total trip 8h 59m, scheduled departure to arrival (Columbus is 3 h ahead of San Francisco). Times are local. Both flew on 56 of the last 56 days.

Makes the connection70%The first flight arrived more than 10 minutes late on 30% of the days it flew: too late for the 45-minute minimum connection on a 55m layover.

Arrives on time47%First flight not cancelled (2.9% are) × connection made (70%) × second flight not cancelled (10.8% are) and within 15 minutes (78%).

Total trip8h 59mSFO 11:30 to CMH 23:28, 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.