Connection · one ticket · schedule Jun 6 – Jul 31, 2026 · records Aug 2025 – Jul 2026
Chicago → Billings via Dallas-Fort Worth: arrives on time 53%
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16:51 ORD → 19:28 DFWAA 2988 · American · 2h 37m · 46% on time, 3.4% cancelled
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1h 47m layover in Dallas-Fort Worth (DFW) · 45 min minimum on one ticket
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21:15 DFW → 23:13 BILAA 3937 · American, flown by Envoy · 2h 58m · 78% on time, 1.5% cancelled
Total trip 7h 22m, scheduled departure to arrival (Billings is 1 h behind Chicago). Times are local. Both flew on 56 of the last 56 days.
Makes the connection72%The first flight arrived more than 62 minutes late on 28% of the days it flew: too late for the 45-minute minimum connection on a 1h 47m layover.
Arrives on time53%First flight not cancelled (3.4% are) × connection made (72%) × second flight not cancelled (1.5% are) and within 15 minutes (78%).
Total trip7h 22mORD 16:51 to BIL 23:13, 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.