Seattle-Tacoma International ⇄ Los Angeles International SEA–LAX
Airlines flew 15,336 flights between Seattle-Tacoma International SEA in Seattle, WA and Los Angeles International LAX in Los Angeles, CA in the twelve months to July 2026, both directions together: 1,812,601 passengers in 2,312,416 seats, 78% of them filled, and 31,841,600 pounds of freight. 954 miles, about 129 minutes in the air, on 17 airlines: Alaska Airlines Inc. (6,608), Delta Air Lines Inc. (4,463), SkyWest Airlines Inc. (2,476), United Air Lines Inc. (786) and 13 more. Planning to fly it yourself? The weather and winds along this route right now.
Flights by month both directions
By month, as a table
| flights | |
|---|---|
| 1/25 | 1,334 |
| 2/25 | 1,158 |
| 3/25 | 1,291 |
| 4/25 | 1,239 |
| 5/25 | 1,355 |
| 6/25 | 1,338 |
| 7/25 | 1,381 |
| 8/25 | 1,366 |
| 9/25 | 1,287 |
| 10/25 | 1,291 |
| 11/25 | 1,226 |
| 12/25 | 1,276 |
| 1/26 | 1,139 |
| 2/26 | 1,132 |
| 3/26 | 1,270 |
| 4/26 | 1,237 |
| 5/26 | 1,384 |
| 6/26 | 1,343 |
| 7/26 | 1,385 |
Passengers by month
By month, as a table
| passengers | |
|---|---|
| 1/25 | 138,179 |
| 2/25 | 133,815 |
| 3/25 | 153,582 |
| 4/25 | 155,177 |
| 5/25 | 157,426 |
| 6/25 | 164,134 |
| 7/25 | 177,535 |
| 8/25 | 174,599 |
| 9/25 | 142,343 |
| 10/25 | 139,323 |
| 11/25 | 133,161 |
| 12/25 | 148,011 |
| 1/26 | 123,118 |
| 2/26 | 128,221 |
| 3/26 | 145,828 |
| 4/26 | 147,840 |
| 5/26 | 166,426 |
| 6/26 | 177,325 |
| 7/26 | 186,406 |
The airlines twelve months, both directions
| Airline | Flights | Passengers | Seats filled | Service |
|---|---|---|---|---|
| Alaska Airlines Inc. AS | 6,608 | 880,460 | 78% | charter passenger service, scheduled cargo service, scheduled passenger service |
| Delta Air Lines Inc. DL | 4,463 | 579,122 | 76% | charter passenger service, scheduled passenger service |
| SkyWest Airlines Inc. OO | 2,476 | 135,386 | 81% | scheduled passenger service |
| United Air Lines Inc. UA | 786 | 103,782 | 80% | scheduled passenger service |
| Frontier Airlines Inc. F9 | 571 | 106,604 | 86% | scheduled passenger service |
| AeroLogic GmbH 3S | 101 | 0 | scheduled cargo service | |
| Air Transport International 8C | 96 | 0 | charter cargo service | |
| Lan Colombia L7 | 95 | 0 | scheduled cargo service | |
| Korean Air Lines Co. Ltd. KE | 35 | 0 | charter cargo service | |
| American Airlines Inc. AA | 30 | 4,576 | 84% | scheduled passenger service |
| Horizon Air QX | 25 | 1,685 | 89% | scheduled passenger service |
| Eva Airways Corporation BR | 16 | 0 | scheduled cargo service | |
| Federal Express Corporation FX | 14 | 0 | scheduled cargo service | |
| Sun Country Airlines d/b/a MN Airlines SY | 13 | 845 | 35% | charter passenger service |
| Southwest Airlines Co. WN | 3 | 141 | 29% | scheduled passenger service |
| Atlas Air Inc. 5Y | 3 | 0 | 0% | charter cargo service, charter passenger service |
| Lufthansa German Airlines LH | 1 | 0 | scheduled cargo service |
The aircraft as the airlines report their types
| Aircraft | Flights | Seats a flight | Passengers |
|---|---|---|---|
| Boeing 737-800 | 4,322 | 159 | 540,398 |
| Boeing 737-900ER | 3,575 | 179 | 486,975 |
| Boeing B737 Max 900 | 2,223 | 178 | 309,644 |
| Canadair RJ-700 | 1,267 | 65 | 68,037 |
| Embraer ERJ-175 | 1,234 | 71 | 69,034 |
| Boeing B737 Max 800 | 859 | 161 | 109,427 |
| Airbus Industrie A321-200n | 748 | 210 | 126,727 |
| Airbus Industrie A320-100/200 | 280 | 152 | 35,227 |
| Airbus Industrie A320-200n | 215 | 186 | 35,455 |
| Boeing 767-300/300ER | 208 | 2 | 312 |
| Airbus Industrie A321Neoxlr | 137 | 210 | 23,485 |
| Boeing B777-F | 113 | 0 | 0 |
| Boeing 737-700/700LR/Max 7 | 56 | 49 | 2,435 |
| Boeing 777-200ER/200LR/233LR | 17 | 0 | 0 |
| Boeing 737-900 | 14 | 178 | 2,027 |
| Boeing 747-400 | 14 | 53 | 0 |
| Boeing 757-200 | 12 | 104 | 611 |
| Boeing B747-8 | 12 | 0 | 0 |
| Airbus Industrie A319 | 11 | 131 | 1,208 |
| Airbus Industrie A350-900 | 6 | 229 | 631 |
| A200-100 BD-500-1A10 | 4 | 109 | 249 |
| Boeing 767-400/ER | 3 | 157 | 306 |
| A220-300 BD-500-1A11 | 2 | 130 | 230 |
| Airbus Industrie A330-900 | 1 | 281 | 0 |
| Boeing 757-300 | 1 | 234 | 0 |
| Airbus Industrie A330-200 | 1 | 223 | 183 |
| Airbus Industrie A330-300/333 | 1 | 282 | 0 |
SEA → LAX this direction alone · flown January 2025 to July 2026
7,552 flights of 7,509 scheduled, 905,351 passengers in 1,156,962 seats, 9,347,730 pounds of freight, 381,736 pounds of mail. Alaska Airlines Inc. 3,299; Delta Air Lines Inc. 2,235; SkyWest Airlines Inc. 1,240; United Air Lines Inc. 392; Frontier Airlines Inc. 286; AeroLogic GmbH 47; American Airlines Inc. 15; Federal Express Corporation 13; Horizon Air 12; Sun Country Airlines d/b/a MN Airlines 8; Southwest Airlines Co. 3; Atlas Air Inc. 2.
LAX → SEA this direction alone · flown January 2025 to July 2026
7,784 flights of 7,491 scheduled, 907,250 passengers in 1,155,454 seats, 22,493,870 pounds of freight, 716,400 pounds of mail. Alaska Airlines Inc. 3,309; Delta Air Lines Inc. 2,228; SkyWest Airlines Inc. 1,236; United Air Lines Inc. 394; Frontier Airlines Inc. 285; Air Transport International 96; Lan Colombia 95; AeroLogic GmbH 54; Korean Air Lines Co. Ltd. 35; Eva Airways Corporation 16; American Airlines Inc. 15; Horizon Air 13; Sun Country Airlines d/b/a MN Airlines 5; Atlas Air Inc. 1; Federal Express Corporation 1; Lufthansa German Airlines 1.
Source: the Bureau of Transportation Statistics' T-100 Segment table (all carriers). A flight is one departure performed on this segment; seats and passengers are the airlines' own monthly reports; "seats filled" is passengers divided by seats. The miles are the DOT's great-circle distance. Both ends: Seattle-Tacoma International SEA and Los Angeles International LAX; all routes.