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Tell FlyerIntel where and when you are flying. It will show how that route actually performs at that time of day and on that day of the week, what both airports are doing right now, and when to get to the airport.

LAX → SEA

Los Angeles to Seattle · departing 5:40 PM

Route on-time rate
84.8%
23,177 flights analyzed
At 3–6 PM
84.6%
4,546 flights in this window
Cancellation rate
0.84%
Share of scheduled flights

Your slot

Add a date above to see how that hour has done on your day of the week, and what a nearby slot would change.

Other times on LAX → SEA

Time of day

On LAX → SEA, flights leaving 5–9 AM arrived on time 89.1% of the time, against 84.6% for those leaving 3–6 PM: 4.5 points more often.

  • 5–9 AM89.1%Best
  • 9 AM–12 PM86.3%
  • 12–3 PM85.8%
  • 3–6 PM84.6%Your time
  • 6–9 PM80.3%
  • 9 PM–5 AM80.4%

Day of week

  • Monday85.0%
  • Tuesday88.2%Best
  • Wednesday87.3%
  • Thursday84.0%
  • Friday81.8%
  • Saturday87.3%
  • Sunday81.2%

Bars start below the lowest figure so a real gap is visible; read the percentage, not the bar length. A time with too few flights to score is left unscored rather than guessed at.

Source: FlyerIntel analysis of US DOT BTS data · July 2023 – July 2026 · History describes what has happened on this route. It is not a prediction about your flight. Full route profile →

Which flight

Flights on LAX → SEA, the ones scheduled closest to 5:40 PM first.

Within 90 minutes of 5:40 PM, DL2640 (usually 5:15 PM) has the best record: 84.3% on time and 0.40% cancelled over 750 flights, against 84.8% on time for LAX → SEA as a whole.

Flights on LAX → SEA and their records
FlightUsually departsOn timeCancelled
AS1301Alaska AirlinesLive map5:40 PM82.3%0.99%
DL2640Delta Air LinesLive map5:15 PM25 min away84.3%0.40%
AS1305Alaska AirlinesLive map6:55 PM75 min away73.7%2.01%
UA684United AirlinesLive map7:30 PM110 min away78.9%0.80%
DL1551Delta Air LinesLive map7:59 PM139 min away81.2%0.50%
F91177Frontier AirlinesLive map3:15 PM145 min away82.1%2.68%
AS614Alaska AirlinesLive map8:09 PM149 min away86.8%1.00%
DL2606Delta Air LinesLive map2:00 PM220 min away87.2%0.51%
AS585Alaska AirlinesLive map1:59 PM221 min away86.2%0.38%
DL1045Delta Air LinesLive map11:45 AM355 min away87.4%0.43%

Source: FlyerIntel analysis of US DOT BTS data · July 2023 – July 2026 · Showing 10 of 16 flight numbers. “Usually departs” is the scheduled time each flight number most often had over the period; airlines retime flights, so confirm the time on your booking. Flight numbers with fewer than 90 operations on this route are left out. This is history, not a forecast for your flight.

When to get to the airport

A starting point for LAX, not a promise about your day.

Recommended arrival
3:10 PM – 3:40 PM

2h 0m before your 5:40 PM departure

How this was worked out

Standard domestic guidancePublished guidance · US airlines and the TSA commonly recommend arriving two hours before a domestic departure.+120 min
What this does not include.
  • FlyerIntel cannot currently obtain live security wait times for LAX, so this figure does not account for the queue on the day.
  • It does not include your journey to the airport, parking, or a shuttle from a remote lot.
  • International departures, and travel with children, checked pets or special assistance, need more time.

Both airports right now

Departing · LAXNo disruption reported

Aviation weather is not currently a factor.

Aviation weatherVFR
69°F · wind 4 kt

Minimal operational impact. Conditions are not a notable factor for operations right now.

Updated

Los Angeles airport profile →

Arriving · SEANo disruption reported

Aviation weather is not currently a factor.

Aviation weatherVFR
45°F · wind 3 kt

Minimal operational impact. Conditions are not a notable factor for operations right now.

Updated

Seattle airport profile →

Source: NOAA Aviation Weather Center · Conditions describe the airfield, not your flight, and change quickly.

Other ways to make this journey

Airport pairings serving Los Angeles to Seattle.

Other ways to make this journey
RouteOn timeCancelledScore
LAX→SEA Los Angeles to Seattle your route84.8%0.84%82
SNA→SEA Santa Ana to Seattle85.5%1.11%81
ONT→SEA Ontario to Seattle86.3%0.99%82
BUR→SEA Burbank to Seattle81.4%1.89%71

Who flies this route

Performance by the carrier that actually operates the flight.

Who flies this route
CarrierFlightsOn timeCancelledMedian delay
Alaska Airlines10,49883.2%1.23%-7 min
Delta Air Lines6,85087.9%0.41%-15 min
SkyWest Airlines3,04684.3%0.39%-9 min
United Airlines1,78085.0%0.62%-8 min
Frontier Airlines47482.7%2.53%-11 min
Spirit Airlines27485.7%0.36%-15 min
JetBlue24076.1%0.83%-5 min