Connection · one ticket · schedule Jun 6 – Jul 31, 2026 · records Aug 2025 – Jul 2026
Seattle → Pittsburgh via Atlanta: arrives on time 78%
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11:56 SEA → 19:54 ATLDL 554 · Delta · 4h 58m · 78% on time, 0.0% cancelled
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3h 12m layover in Atlanta (ATL) · 45 min minimum on one ticket
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23:06 ATL → 00:52 PIT +1 dayDL 1351 · Delta · 1h 46m · 80% on time, 1.6% cancelled
Total trip 9h 56m, scheduled departure to arrival (Pittsburgh is 3 h ahead of Seattle). Times are local. Both flew on 56 of the last 56 days.
Makes the connection99%The first flight arrived more than 147 minutes late on 1% of the days it flew: too late for the 45-minute minimum connection on a 3h 12m layover.
Arrives on time78%First flight not cancelled (0.0% are) × connection made (99%) × second flight not cancelled (1.6% are) and within 15 minutes (80%).
Total trip9h 56mSEA 11:56 to PIT 00:52, 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.