Connection · one ticket · schedule Jun 6 – Jul 31, 2026 · records Aug 2025 – Jul 2026
Dulles → San Juan via Dallas-Fort Worth: arrives on time 24%
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19:31 IAD → 21:50 DFWAA 1904 · American · 3h 19m · 51% on time, 2.9% cancelled
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57m layover in Dallas-Fort Worth (DFW) · 45 min minimum on one ticket
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22:47 DFW → 04:39 SJU +1 dayAA 514 · American · 4h 52m · 49% on time, 0.0% cancelled
Total trip 9h 08m, scheduled departure to arrival. Times are local. Both flew on 53 of the last 56 days.
Makes the connection50%The first flight arrived more than 12 minutes late on 50% of the days it flew: too late for the 45-minute minimum connection on a 57m layover.
Arrives on time24%First flight not cancelled (2.9% are) × connection made (50%) × second flight not cancelled (0.0% are) and within 15 minutes (49%).
Total trip9h 08mIAD 19:31 to SJU 04:39, 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.