Connection · one ticket · schedule Jun 6 – Jul 31, 2026 · records Aug 2025 – Jul 2026
Baltimore → Chicago via San Juan: arrives on time 49%
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12:35 BWI → 16:40 SJUF9 1774 · Frontier · 4h 05m · 54% on time, 3.7% cancelled
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2h 34m layover in San Juan (SJU) · 45 min minimum on one ticket
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19:14 SJU → 23:27 ORDF9 3345 · Frontier · 5h 13m · 61% on time, 4.8% cancelled
Total trip 11h 52m, scheduled departure to arrival (Chicago is 1 h behind Baltimore). Times are local. Both flew on 27 of the last 56 days.
Makes the connection88%The first flight arrived more than 109 minutes late on 12% of the days it flew: too late for the 45-minute minimum connection on a 2h 34m layover.
Arrives on time49%First flight not cancelled (3.7% are) × connection made (88%) × second flight not cancelled (4.8% are) and within 15 minutes (61%).
Total trip11h 52mBWI 12:35 to ORD 23:27, 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.