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UA 439 Los Angeles to Seattle Flight Status

United Airlines Flight UA439 from Los Angeles International Airport LAX to Seattle Tacoma International Airport SEA is not scheduled for today June 4th, 2026.
The last time the flight was scheduled was on December 1st, 2025.
Check the table below for UA439's most recent flight history:

UA 439 Flight Status & Schedule

Date Departure Arrival Status
Dec 01 09:01 11:24
Landed
Track >
Nov 30 09:11 11:44
Landed
Track >
Nov 29 08:55 11:14
Landed
Track >
Nov 28 09:07 11:26
Landed
Track >
Nov 27 08:55 11:04
Landed
Track >

United Airlines UA 439 Los Angeles to Seattle Flight Information

United Airlines Flight UA439 connects Los Angeles, United States to Seattle, United States, taking off from Los Angeles International Airport LAX and landing at Seattle Tacoma International Airport SEA.

How long is the UA439 flight from Los Angeles to Seattle?

The average flight time from Los Angeles to Seattle is 2 hours and 19 minutes. The flight distance is 1537 km / 955 miles and the average flight speed is 661 km/h / 411 mph.

What is the On-Time Performance (OTP) of United Airlines Flight UA439 Los Angeles to Seattle?

The Airportia On-Time Performance Rating for United Airlines Flight UA439 is 5/5 stars. This metric is calculated using data from the past 10 flights.

Which terminal is the flight UA439 arriving at?

Flight UA439 arrives at Seattle Tacoma International Airport (SEA) Terminal 3.

When was the latest UA439 flight?

The latest flight took off on Monday, December 1st, 2025 with the flight status being Landed on 11:24.

How else can the flight UA439 be referenced as?

This United Airlines flight can also be referenced as UAL439, UA0439, UA 439, UAL 439.

How often is flight UA439 delayed?

On average, 10% of all UA439 flights are delayed. The average delay is 5 minutes.

Can I get compensation for my delayed or cancelled UA439 flight or baggage issues?

If your UA439 flight was cancelled, delayed, or if you experienced baggage issues such as delayed, damaged, or lost bags, you may be entitled to compensation. Compensation amounts and eligibility depend on various regulations, including EC 261/2004, UK261, CA Montreal Convention, US GoodWill, BR-ANAC, SA-GACA and TK-SHY.

See our UA439 Flight Tracker above for more details.

UA439 and Los Angeles LAX to Seattle SEA Flights

Flight UA439 is code-shared by 4 airlines using the flight numbers AV2268, CM2083, NZ2473, VA8277

Other flights departing from Los Angeles LAX: AA801, UA1311, UA1284, NK536

Other flights arriving at Seattle SEA: Y42780, AS2181, AS3438, 5Y8289

All flights connecting Los Angeles LAX to Seattle SEA.

UA439 United Airlines Flight: Los Angeles to Seattle Route Map

Flight Delay Compensation up to 600€/$: Claim for delay, cancellation, or baggage issues >
Flight-schedule data supplied by Aviation Edge Real-time Flight Schedules API.