Los Angeles to Seattle flights
about 237 flights a week across 39 operators, most often on the Boeing 737 (all variants). Below: the aircraft mix, and what the safety record and the turbulence model say for this route.
Route FAQ
How long does the flight from Los Angeles to Seattle take?
Flight time from Los Angeles (LAX) to Seattle (SEA) depends on routing, aircraft type, and whether the flight is direct or connecting. A direct flight typically reflects great-circle distance plus winds, while one-stop options can add several hours depending on the layover airport. The typical block time and frequency we have observed for this route are shown above.
Which airlines fly from Los Angeles to Seattle?
Airline availability for LAX to SEA changes by season and sometimes week to week as carriers adjust capacity. The airlines and aircraft types observed operating this route, both direct and connecting, are listed below based on real flight-tracking data.
Are there direct flights from Los Angeles to Seattle?
Direct (nonstop) availability on LAX to SEA varies by date, day of week, and season. Busy city pairs usually have multiple daily nonstops, while thinner routes may only have direct service a few days per week or only during peak seasons.
No fatal or serious occurrence recorded and attributed to operators on this pair in the last 90 days.
- Delta Air Lines5-yr attributed events: 52Last 90 days: none recorded
- Alaska Airlines5-yr attributed events: 7Last 90 days: none recorded
- SkyWest5-yr attributed events: 5Last 90 days: none recorded
- Horizon Air5-yr: no attributed events (coverage limited)Last 90 days: none recorded
- LAE5-yr: no attributed events (coverage limited)Last 90 days: none recorded
| Carrier | Sightings / 90d | Safety events |
|---|---|---|
| Delta Air Lines | 7 sightings | No recorded events |
| Alaska Airlines | 6 sightings | No recorded events |
| SkyWest | 2 sightings | No recorded events |
| Horizon Air | 1 sighting | No recorded events |
| LAE | 1 sighting | No recorded events |
Flight patterns on LAX → SEA
We observed 3044 flights on this route over the last 90 days (about 236.8 per week) across 39 airlines.
Departures cluster around 02:00–03:00 UTC, 01:00–02:00 UTC, 17:00–18:00 UTC, busiest on Tuesday and Monday.
On-time performance: 29.5% of departures left within 15 minutes of schedule (average delay 51 min, based on 729 timed flights).
Historically, 80.5% of flights on LAX → SEA arrived within 15 minutes of schedule (average arrival delay 3.4 min; 1.4% cancelled), across 198,861 flights from 1987–2025. Source: U.S. DOT Bureau of Transportation Statistics (BTS).
In 2025, 1,815,715 passengers flew between LAX and SEA (both directions) on 14,806 flights, led by AS. Source: U.S. DOT BTS T-100. US air traffic.
Carrier on-time performance (last 12 months)
| Carrier | On-time % | Avg delay | Flights |
|---|---|---|---|
| Alaska Airlines | 82.3% | 9.4 min | 6,487 |
| Delta Air Lines | 86.2% | 10 min | 4,410 |
| SkyWest Airlines | 84.9% | 15.1 min | 2,473 |
| United Airlines | 87.1% | 8.8 min | 785 |
| Frontier Airlines | 79.9% | 14.3 min | 502 |
| American Airlines | 100% | 0 min | 2 |
On-time = arrival within 15 minutes of schedule, per U.S. DOT definitions. Source: Bureau of Transportation Statistics (public domain). Delay-cause attribution is reported by carriers since June 2003.
Planning LAX → SEA
LAX to SEA is a medium-haul route of 1,537 km (955 mi). See the return SEA → LAX route.
Alternative airports near Los Angeles: Hawthorne (HHR) — 7 km, Santa Monica (SMO) — 9 km, Torrance (TOA) — 17 km.
Alternative airports near Seattle: Seattle (BFI) — 9 km, Renton (RNT) — 9 km, Tacoma (TIW) — 28 km.