Connection · one ticket · schedule Jun 6 – Jul 31, 2026 · records Aug 2025 – Jul 2026
Chicago → Baltimore via Atlanta: arrives on time 42%
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12:11 MDW → 15:13 ATLF9 2144 · Frontier · 2h 02m · 68% on time, 3.0% cancelled
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53m layover in Atlanta (ATL) · 45 min minimum on one ticket
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16:06 ATL → 18:09 BWIF9 1080 · Frontier · 2h 02m · 71% on time, 3.1% cancelled
Total trip 4h 57m, scheduled departure to arrival (Baltimore is 1 h ahead of Chicago). Times are local. Both flew on 51 of the last 56 days.
Makes the connection63%The first flight arrived more than 8 minutes late on 37% of the days it flew: too late for the 45-minute minimum connection on a 53m layover.
Arrives on time42%First flight not cancelled (3.0% are) × connection made (63%) × second flight not cancelled (3.1% are) and within 15 minutes (71%).
Total trip4h 57mMDW 12:11 to BWI 18:09, layover included
Tight connection: often missed. The first flight is late enough to miss it on more than 1 day in 4.
Not yet counted: the second flight also leaving late (which helps), gate-to-gate distance at the hub, and rebooking after a missed connection.