OS 31 then UA 3630 at Boston
Vienna → Boston → Washington
Timetable, Boston time
13:30OS 31 from Vienna at the gate
19:41UA 3630 to Washington leaves the gate
6 h 11 apart on the timetable
The last days
OS 31 and UA 3630 weren’t both flown 15 min to 12 h apart in the last 21 days.
Statistics from past flights, not live flight information. Always check times and your connection with your airline, and don’t base travel or booking decisions on these numbers.
Later flights to Washington
No later flight to Washington on the timetable.