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

Dulles → Buffalo via Atlanta: arrives on time 74%

  1. 10:21 IAD → 12:05 ATL
    DL 1324 · Delta · 1h 48m · 85% on time, 4.3% cancelled
  2. 1h 55m layover in Atlanta (ATL) · 45 min minimum on one ticket
  3. 14:00 ATL → 16:06 BUF
    DL 2266 · Delta · 2h 06m · 82% on time, 0.0% cancelled

Total trip 5h 45m, scheduled departure to arrival. Times are local. Both flew on 54 of the last 56 days.

Makes the connection94%The first flight arrived more than 70 minutes late on 6% of the days it flew: too late for the 45-minute minimum connection on a 1h 55m layover.
Arrives on time74%First flight not cancelled (4.3% are) × connection made (94%) × second flight not cancelled (0.0% are) and within 15 minutes (82%).
Total trip5h 45mIAD 10:21 to BUF 16:06, 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.