Connection · one ticket · schedule Jun 6 – Jul 31, 2026 · records Aug 2025 – Jul 2026
Dulles → Dallas-Fort Worth via Chicago: arrives on time 30%
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17:42 IAD → 18:50 ORDUA 2497 · United · 2h 08m · 48% on time, 1.1% cancelled
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1h 00m layover in Chicago (ORD) · 45 min minimum on one ticket
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19:50 ORD → 22:36 DFWUA 1673 · United · 2h 46m · 65% on time, 3.4% cancelled
Total trip 5h 54m, scheduled departure to arrival (Dallas-Fort Worth is 1 h behind Dulles). Times are local. Both flew on 55 of the last 56 days.
Makes the connection48%The first flight arrived more than 15 minutes late on 52% of the days it flew: too late for the 45-minute minimum connection on a 1h 00m layover.
Arrives on time30%First flight not cancelled (1.1% are) × connection made (48%) × second flight not cancelled (3.4% are) and within 15 minutes (65%).
Total trip5h 54mIAD 17:42 to DFW 22:36, 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.