DL 551 — Boston to Los Angeles
DL 551 Schedule
Delta Air Lines operates BOS to LAX Mon Tue Wed Thu Fri Sun. Scheduled block time is 6h 6m. Typically a Boeing 757-200.
Boeing 757-200 (752)
Scheduled equipment: Boeing 757-200. Boeing-built. Registration, build year, and photo fill in the moment the aircraft broadcasts.
DL 551 Flight Path
Cruise altitude, ground speed, and vertical rate from ADS-B broadcasts. The altitude profile fills in while DL 551 is airborne, capturing climbs, step-climbs, and descents in real time.
Flight path chart appears once DL 551 is airborne and broadcasting.
Frequently Asked Questions
If a plane icon is moving on the map, yes. That's ADS-B, the aircraft's own GPS position broadcast, updated every few seconds. No icon means the flight isn't airborne at the moment: either before pushback, already landed, or a day it doesn't operate.
Scheduled equipment is the 752. The live tracker shows the actual tail and registration when DL 551 is airborne. Carriers swap aircraft often enough that you'll sometimes see a different airframe than the scheduled type.
Mon Tue Wed Thu Fri Sun. 6 days a week. On days outside that pattern this page will show the schedule but no live aircraft.
Scheduled 6h 6m gate to gate from BOS to LAX. Actual air time varies with winds and ATC routing. Tailwinds can shave 15 to 20 minutes on long segments.
GPS-accurate via ADS-B. Typically within 30 meters horizontally, updated every 5 to 10 seconds. If the broadcast drops over oceans or mountainous terrain, the map holds the last-known position and the label changes to reflect the signal gap.
A projection from current position, groundspeed, and remaining distance. It doesn't account for descent procedures, holding, or ATC vectoring near the destination. Trust it within plus or minus 10 minutes once the flight is past the halfway mark.
Delta Air Lines is a skyteam member, so you may see this flight ticketed under a partner airline's code as well. The live aircraft is the same regardless of which code is on your ticket.