Los Angeles (LAX) to Seattle (SEA)
Flight time
≈ 2h 43m
Bearing
349° N
Los Angeles (LAX) to Seattle (SEA) is 955 miles (1,537 km) as the crow flies — the great-circle baseline most distance-based mileage programs credit.
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What actually flies LAX–SEA
Filed traffic dataIn July 2026, Alaska Airlines operated the most departures, one of 6 carriers flying nonstop LAX–SEA; the Boeing 737-800 was the most common aircraft at 34% of departures; flights ran 85% full.
Departures
1,337
July 2026
Seats
219,623
both directions
Passengers
186,406
both directions
Load factor
84.9%
RPM ÷ ASM
Who flies LAX–SEA?
Alaska Airlines operated the most nonstop LAX–SEA departures in July 2026 (622), one of 6 carriers on the route.
- AS
622 departures · 106,884 seats
Share of departures46.5%82.3%
Load
- DL
408 departures · 68,502 seats
Share of departures30.5%86.6%
Load
- UA
120 departures · 20,350 seats
Share of departures9.0%86.6%
Load
- OO
117 departures · 7,649 seats
Share of departures8.8%84.6%
Load
- F9
62 departures · 14,700 seats
Share of departures4.6%93.7%
Load
- AA
8 departures · 1,538 seats
Share of departures0.6%80.8%
Load
What plane flies LAX–SEA?
In July 2026, the Boeing 737-800 flew 34% of LAX–SEA departures — more than any other aircraft type.
- Boeing 737-800
455 departures · 84.5% load
34.0% - Boeing 737-900ER
266 departures · 83.7% load
19.9% - Boeing 737 MAX 9
241 departures · 83.3% load
18.0% - Boeing 737 MAX 8
117 departures · 82.7% load
8.8% - Bombardier CRJ-700
113 departures · 85.6% load
8.5% - Airbus A321neo
109 departures · 92.4% load
8.2% - Airbus A321
23 departures · 90.1% load
1.7% - Airbus A320
4 departures · 96.3% load
0.3% - Embraer E175
4 departures · 60.5% load
0.3% - Boeing 737-700
3 departures · 84.7% load
0.2% - Airbus A220-100
1 departures · 48.6% load
0.1% - Boeing 757-200
1 departures · 0.0% load
0.1%
How has LAX–SEA traffic changed?
Nonstop LAX–SEA departures rose from 1,285 in August 2025 to 1,337 in July 2026.
Monthly nonstop LAX–SEA traffic, trailing 12 months through July 2026. Bars scale to the busiest month; months with no filed service show as zero.
August 2025
1,285 departures · 174,599 passengers
85.2%
Load
September 2025
1,216 departures · 142,343 passengers
73.3%
Load
October 2025
1,229 departures · 139,323 passengers
70.5%
Load
November 2025
1,202 departures · 133,161 passengers
72.3%
Load
December 2025
1,256 departures · 148,011 passengers
79.0%
Load
January 2026
1,124 departures · 123,118 passengers
75.5%
Load
February 2026
1,118 departures · 128,221 passengers
78.3%
Load
March 2026
1,252 departures · 145,828 passengers
79.5%
Load
April 2026
1,219 departures · 147,840 passengers
79.6%
Load
May 2026
1,366 departures · 166,426 passengers
78.3%
Load
June 2026
1,308 departures · 177,325 passengers
82.2%
Load
July 2026
1,337 departures · 186,406 passengers
84.9%
Load
By direction
Each direction is filed separately — they rarely match.
SEA → LAX
85.5% full
670 departures · 94,199 passengers
LAX → SEA
84.3% full
667 departures · 92,207 passengers
Nonstop LAX–SEA traffic has been filed since 2025.
Source: US DOT BTS Form 41 T-100 Segment (All Carriers). Data through July 2026; filings from 2025. Public domain (US Government work).
The airports
Frequently asked
How far is Los Angeles (LAX) from Seattle (SEA)?
LAX to SEA is 955 miles (1,537 km / 830 nautical miles) measured great-circle — the shortest path over the surface of the Earth.
How long is the flight from LAX to SEA?
A nonstop covers the 955-mile great-circle distance in roughly 2h 43m of block time, before winds. Actual schedules vary a few percent by direction and aircraft.
What plane flies LAX–SEA?
In July 2026, the Boeing 737-800 flew the largest share of departures (34.0%), followed by the Boeing 737-900ER (19.9%).
What mileage do I earn flying LAX–SEA?
Distance-based programs credit off the 955-mile great-circle figure, then apply your fare-class earning rate. Revenue-based programs credit off the fare instead.
Trip reports on YouTube
Fliers post trip reports from this route to YouTube. These three were matched automatically from public YouTube listings — The Frequent Flier does not host, review, or endorse them.
The Trip Reporter
Delta Air Lines Airbus A321neo Comfort Plus Trip Report | Seattle to Los Angeles
24:51 · Dec 2025
Global Aviation & Travel
REVIEW | Delta Air Lines | Seattle (SEA) - Los Angeles (LAX) | Airbus A321neo | First Class
25:16 · Jun 2024
Coke Cans And Winglets
TRIP REPORT | Los Angeles (LAX) to Seattle (SEA) | Alaska Airlines | A321-253NX | Main
16:52 · Apr 2021
Source: YouTube. Titles, thumbnails, and channel names come from YouTube. Playing a video loads the YouTube player, and using it means you agree to the YouTube Terms of Service; the Google Privacy Policy applies.
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