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UA1129 — flight status & live tracker

New York (EWR) → Seattle (SEA)
United Airlines · Live position from global ADS-B networks

Track UA1129 in real time on the ScanFlyGo live map. If the aircraft is airborne and within coverage, you’ll see its exact position, altitude, speed and heading along the New York–Seattle route.

✈️ Track UA1129 on the live map

Route

UA1129 is operated by United Airlines and flies from Newark Liberty International Airport (EWR/KEWR) to Seattle Tacoma International Airport (SEA/KSEA). Compare fares on this route →

The aircraft most recently seen operating UA1129 was a Boeing 737 MAX 9 (ICAO type code B39M). Equipment changes by season and demand, so the type shown on the live map is the one that counts today.

Other flights we track on EWR–SEA: AS299.

What a seat on New York → Seattle costs right now

Cheapest one-way fares found on this route in the last 48 hours, across 2 carrier(s). Prices move — open one to see live availability.

United Airlines 2026-10-14 · Direct €140 United Airlines 2026-10-01 · Direct €144 Alaska Airlines 2026-10-26 · 1 stop €148 United Airlines 2026-11-17 · Direct €152

Fares are one-way, found by other travellers in the last 48 hours, and change constantly. ScanFlyGo earns a commission if you book — it costs you nothing extra.

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Frequently asked questions

How do I track flight UA1129 live?

Open the ScanFlyGo live map for UA1129 to see its current position, altitude and speed in real time. If the flight is airborne and within ADS-B coverage it appears on the map on the New York–Seattle route.

What route does UA1129 fly?

UA1129 (United Airlines) operates New York (EWR/KEWR) to Seattle (SEA/KSEA).

What aircraft operates UA1129?

UA1129 was most recently observed being flown by a Boeing 737 MAX 9 (ICAO type B39M). Airlines swap equipment by season and demand, so open the live map to see the exact aircraft — including its registration — operating today.

Is flight UA1129 on time?

ScanFlyGo shows live aircraft position rather than airline schedule data. For exact departure and arrival times and delays, check the airline’s website — but the live map tells you instantly whether UA1129 is already in the air and where it is.

Is tracking UA1129 free?

Yes — ScanFlyGo flight tracking is free with no app or account, on desktop and mobile.

Positions come from community ADS-B networks for information and entertainment only — not for navigation. Coverage may be incomplete or delayed.