American Airlines AA4399 Landed BOS Boston → PHL Philadelphia 1h 450km / 277mi 23. May 2025 DEPARTURE 12:49 EDT 16:49 UTC 12:32 +17 minutes TERMINAL: B GATE: B11 ARRIVAL 13:50 EDT 17:50 UTC 14:13 -22 minutes TERMINAL: B GATE: B14 Embraer ERJ175 N138HQ Powered by adsbexhange.com Altitude ft Speed kts Track ° AIRLINE American Airlines AA / AAL FREQUENCY daily DISTANCE 450km FLIGHTS/WEEK 112 PUNCTUALITY 50%