AZ4396

EWR → BOS · Boeing 737 MAX 9 · United Airlines

For travellers

Departure · Newark (EWR)

Terminal C · Gate C70

Scheduled 23 Sep 13:00 · Departed 23 Sep 12:50 · early

Board status: Departed

Airborne since 23 Sep 13:09 (ADS-B)

Board data from ewr, updated 14550 min ago; times local to each airport.

Flight

Status

Completed

Arrival confirmed via

ADS-B (callsign change)

Departure

Newark Liberty International Airport (EWR) — Newark, United States

Scheduled departure

2026-09-23 17:00 UTC

Departed

2026-09-23 17:09 UTC

Arrival

General Edward Lawrence Logan International Airport (BOS) — Boston, United States

Also flies as

UA577

Codeshares

AZ4396

Distance flown

464 km

Straight-line distance

322 km

Approach distance

183 km

Aircraft

Registration

N87442

Type

Boeing 737 MAX 9

Seats

179 total (117 Economy, 42 Economy Plus, 20 First) (typical for type, not this tail)

CO2 (EMEP est., total)

8.1 t (57 kg/pax Business, 43 kg/pax Economy)

Altitude & speed

Max altitude

21,025 ft

Max ground speed

456 kt

Tracked

1h 30m · 459 km

Altitude (ft, max 21,025)

Ground speed (kt, max 456)

Altitude (ft, max 21,025)

Ground speed (kt, max 456)

From the ADS-B positions we received; time since the first fix. A dashed stretch is a gap in reception, bridged by a straight line.

Route map

Airline

United Airlines (UAL)

Latest flights

Departed	Flight	Route	Reg	Aircraft	Status	Distance
2026-09-23 17:09 UTC	UAL577	EWR → BOS Newark → Boston	N87442	Boeing 737 MAX 9	Completed	464 km

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