Connection · one ticket · schedule Jun 6 – Jul 31, 2026 · records Aug 2025 – Jul 2026
Chicago → Seattle via Atlanta: arrives on time 77%
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05:30 ORD → 08:33 ATLDL 1264 · Delta · 2h 03m · 91% on time, 1.6% cancelled
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1h 19m layover in Atlanta (ATL) · 45 min minimum on one ticket
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09:52 ATL → 12:20 SEADL 774 · Delta · 5h 30m · 84% on time, 0.0% cancelled
Total trip 8h 52m, scheduled departure to arrival (Seattle is 2 h behind Chicago). Times are local. Both flew on 56 of the last 56 days.
Makes the connection93%The first flight arrived more than 34 minutes late on 7% of the days it flew: too late for the 45-minute minimum connection on a 1h 19m layover.
Arrives on time77%First flight not cancelled (1.6% are) × connection made (93%) × second flight not cancelled (0.0% are) and within 15 minutes (84%).
Total trip8h 52mORD 05:30 to SEA 12:20, 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.