Southwest Airlines WN3617 Landed STL St. Louis → BOS Boston 1h 59m 1,682km / 1,038mi 01. Dec 2018 DEPARTURE 18:59 CST 00:59 UTC 18:40 +19 minutes ARRIVAL 21:58 EST 02:58 UTC 22:10 -11 minutes Boeing B737-800 N8561Z AIRLINE Southwest Airlines WN / SWA FLIGHTS/WEEK 34 PUNCTUALITY 75%