Connection · one ticket · schedule Jun 6 – Jul 31, 2026 · records Aug 2025 – Jul 2026
Atlanta → Boston via Dulles: arrives on time 41%
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14:41 ATL → 16:35 IADUA 1831 · United · 1h 54m · 78% on time, 0.8% cancelled
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50m layover in Dulles (IAD) · 45 min minimum on one ticket
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17:25 IAD → 19:14 BOSUA 688 · United · 1h 49m · 63% on time, 3.3% cancelled
Total trip 4h 33m, scheduled departure to arrival. Times are local. Both flew on 56 of the last 56 days.
Makes the connection68%The first flight arrived more than 5 minutes late on 32% of the days it flew: too late for the 45-minute minimum connection on a 50m layover.
Arrives on time41%First flight not cancelled (0.8% are) × connection made (68%) × second flight not cancelled (3.3% are) and within 15 minutes (63%).
Total trip4h 33mATL 14:41 to BOS 19:14, 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.