UA1523

SEA → IAD · Boeing 737 MAX 9 · United Airlines

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For travellers

Departure · Seattle (SEA)

Gate B11

Scheduled 08:25

Board status: Departed

Airborne since 08:51 (ADS-B)

Arrival · Washington, DC (IAD)

Gate D10 · Baggage belt 3

Scheduled 16:31 · Estimated 16:13 · early

Board status: InAir

In the air, ~1h 13m to go (67% of the route flown)

Board data from mwaa, sea, updated 58 min ago; times local to each airport.

Flight

Status

In progress

Departure

Seattle Tacoma International Airport (SEA) — Seattle, United States

Scheduled departure

2026-10-02 15:25 UTC

Departed

2026-10-02 15:51 UTC

Arrival

Washington Dulles International Airport (IAD) — Washington, DC, United States (scheduled)

Scheduled arrival

2026-10-02 20:31 UTC

Estimated arrival

2026-10-02 20:13 UTC

Progress

67% · ~1h 13m remaining

Codeshares

LH7485, OS7908, SN8850

Distance flown

2513 km

Straight-line distance

3702 km

Aircraft

Registration

N27419

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)

75.2 t (534 kg/pax Business, 407 kg/pax Economy)

Altitude & speed

Max altitude

35,025 ft

Max ground speed

548 kt

Tracked

2h 38m · 2,513 km

Note

still in progress - the track so far

Altitude (ft, max 35,025)

Ground speed (kt, max 548)

Altitude (ft, max 35,025)

Ground speed (kt, max 548)

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
2026-10-02 15:51 UTC	UAL1523	SEA → IAD Seattle → Washington, DC	N27419	Boeing 737 MAX 9	In progress	~3702 km est.
2026-10-01 15:42 UTC	UAL1523	SEA → IAD Seattle → Washington, DC	N57480	Boeing 737 MAX 9	Completed	3851 km
2026-09-30 15:39 UTC	UAL1523	SEA → IAD Seattle → Washington, DC	N77582	Boeing 737 MAX 9	Completed (landing confirmed by airport data)	3850 km

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