United Airlines UA421 Landed BOS Boston → IAH Houston 3h 21m 2,570km / 1,586mi 01. Jul 2023 DEPARTURE 05:39 EDT 09:39 UTC 05:30 +9 minutes TERMINAL: B GATE: B26 ARRIVAL 08:01 CDT 13:01 UTC 08:30 -28 minutes TERMINAL: D GATE: 6 Boeing B737 MAX 9 N27509 AIRLINE United Airlines UA / UAL FLIGHTS/WEEK 44 PUNCTUALITY 86%