| Date | From | To | Departure | Arrival | Status | |
|---|---|---|---|---|---|---|
| Mar 04 | LAX | SEA | 13:34 | 15:55 |
Landed
|
Track > |
| Mar 03 | LAX | SEA | 13:46 | 16:12 |
Landed
|
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| Mar 02 | LAX | SEA | 13:27 | 15:56 |
Landed
|
Track > |
| Mar 01 | LAX | SEA | 13:35 | 15:45 |
Landed
|
Track > |
| Feb 28 | LAX | SEA | 13:30 | 15:37 |
Landed
|
Track > |
| Feb 27 | LAX | SEA | 13:38 | 16:05 |
Landed
|
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| Feb 26 | LAX | SEA | 13:57 | 16:23 |
Landed
|
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| Feb 25 | LAX | SEA | 13:26 | 15:57 |
Landed
|
Track > |
| Feb 24 | LAX | SEA | 13:24 | 15:37 |
Landed
|
Track > |
| Feb 23 | LAX | SEA | 13:28 | 15:52 |
Landed
|
Track > |
United Airlines Flight UA5403 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 UA5403 flight from Los Angeles to Seattle?
The average flight time from Los Angeles to Seattle is 2 hours and 21 minutes. The flight distance is 1537 km / 955 miles and the average flight speed is 654 km/h / 407 mph.
What is the On-Time Performance (OTP) of United Airlines Flight UA5403 Los Angeles to Seattle?
The Airportia On-Time Performance Rating for United Airlines Flight UA5403 is 5/5 stars. This metric is calculated using data from the past 10 flights.
Which terminal is the flight UA5403 arriving at?
Flight UA5403 arrives at Seattle Tacoma International Airport (SEA) Terminal M.
When was the latest UA5403 flight?
The latest flight took off on Thursday, March 5th, 2026 with the flight status being Landed on 15:55.
How else can the flight UA5403 be referenced as?
This United Airlines flight can also be referenced as UAL5403, UA 5403, UAL 5403.
How often is flight UA5403 delayed?
On average, 10% of all UA5403 flights are delayed. The average delay is 2 minutes.
Can I get compensation for my delayed or cancelled UA5403 flight or baggage issues?
If your UA5403 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 UA5403 Flight Tracker above for more details.
Flight UA5403 is code-shared by 4 airlines using the flight numbers AV2268, CM2084, NZ2473, VA8277
Other flights departing from Los Angeles LAX: WN2323, UA5371, UA445, AA652
Other flights arriving at Seattle SEA: WN3678, AS2342, AS2242, AS3091
All flights connecting Los Angeles LAX to Seattle SEA.