Connection · two tickets · schedule Jun 6 – Jul 31, 2026 · records Aug 2025 – Jul 2026
Chicago → Raleigh/Durham via Boston: arrives on time 81%
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07:40 MDW → 10:55 BOSWN 4611 · Southwest · 2h 15m · 90% on time, 0.0% cancelled
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2h 05m layover in Boston (BOS) · 90 min minimum on separate tickets
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13:00 BOS → 15:04 RDUDL 2283 · Delta · 2h 04m · 83% on time, 0.8% cancelled
Total trip 6h 24m, scheduled departure to arrival (Raleigh/Durham is 1 h ahead of Chicago). Times are local. Both flew on 56 of the last 56 days.
Makes the connection98%The first flight arrived more than 35 minutes late on 2% of the days it flew: too late for the 90-minute minimum connection on a 2h 05m layover.
Arrives on time81%First flight not cancelled (0.0% are) × connection made (98%) × second flight not cancelled (0.8% are) and within 15 minutes (83%).
Total trip6h 24mMDW 07:40 to RDU 15:04, 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.