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

Chicago → Raleigh/Durham via Boston: arrives on time 33%

  1. 15:19 ORD → 18:59 BOS
    DL 2816 · Delta · 2h 40m · 62% on time, 3.3% cancelled
  2. 1h 06m layover in Boston (BOS) · 45 min minimum on one ticket
  3. 20:05 BOS → 22:16 RDU
    DL 817 · Delta · 2h 12m · 55% on time, 3.1% cancelled

Total trip 5h 58m, scheduled departure to arrival (Raleigh/Durham is 1 h ahead of Chicago). Times are local. Both flew on 44 of the last 56 days.

Makes the connection64%The first flight arrived more than 21 minutes late on 36% of the days it flew: too late for the 45-minute minimum connection on a 1h 06m layover.
Arrives on time33%First flight not cancelled (3.3% are) × connection made (64%) × second flight not cancelled (3.1% are) and within 15 minutes (55%).
Total trip5h 58mORD 15:19 to RDU 22:16, 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.