Southwest Airlines WN3509 Landed BOS Boston → BWI Baltimore 1h 7m 803km / 495mi (Direct: 594km, +26%) 28. Apr 2018 DEPARTURE 05:58 EDT 09:58 UTC 05:45 +13 minutes ARRIVAL 07:05 EDT 11:05 UTC 07:15 -9 minutes Boeing B737-800 N8310C AIRLINE Southwest Airlines WN / SWA FLIGHTS/WEEK 85 PUNCTUALITY 77%