American Airlines AA4399 Landed BOS Boston → PHL Philadelphia 1h 6m 638km / 393mi (Direct: 450km, +29%) 21. May 2025 DEPARTURE 12:53 EDT 16:53 UTC 12:29 +24 minutes TERMINAL: B GATE: B5 ARRIVAL 14:00 EDT 18:00 UTC 14:03 -2 minutes TERMINAL: B GATE: B1 Embraer ERJ175 N115HQ Powered by adsbexhange.com Altitude ft Speed kts Track ° AIRLINE American Airlines AA / AAL FREQUENCY daily DISTANCE 450km FLIGHTS/WEEK 112 PUNCTUALITY 50%