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

Chicago → Washington via Atlanta: arrives on time 60%

  1. 11:05 MDW → 14:01 ATL
    DL 1063 · Delta · 1h 56m · 90% on time, 2.7% cancelled
  2. 2h 39m layover in Atlanta (ATL) · 45 min minimum on one ticket
  3. 16:40 ATL → 18:33 DCA
    DL 950 · Delta · 1h 53m · 65% on time, 2.2% cancelled

Total trip 6h 28m, scheduled departure to arrival (Washington is 1 h ahead of Chicago). Times are local. Both flew on 54 of the last 56 days.

Makes the connection98%The first flight arrived more than 114 minutes late on 2% of the days it flew: too late for the 45-minute minimum connection on a 2h 39m layover.
Arrives on time60%First flight not cancelled (2.7% are) × connection made (98%) × second flight not cancelled (2.2% are) and within 15 minutes (65%).
Total trip6h 28mMDW 11:05 to DCA 18:33, 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.