Seattle-Tacoma International ⇄ Detroit Metro Wayne County SEA–DTW
Airlines flew 4,110 flights between Seattle-Tacoma International SEA in Seattle, WA and Detroit Metro Wayne County DTW in Detroit, MI in the twelve months to July 2026, both directions together: 682,706 passengers in 765,289 seats, 89% of them filled, and 812,443 pounds of freight. 1,927 miles, about 219 minutes in the air, on 3 airlines: Delta Air Lines Inc. (3,025), Alaska Airlines Inc. (1,084), Air Canada (1). 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 | 244 |
| 2/25 | 214 |
| 3/25 | 284 |
| 4/25 | 295 |
| 5/25 | 394 |
| 6/25 | 437 |
| 7/25 | 446 |
| 8/25 | 425 |
| 9/25 | 353 |
| 10/25 | 320 |
| 11/25 | 312 |
| 12/25 | 326 |
| 1/26 | 269 |
| 2/26 | 249 |
| 3/26 | 290 |
| 4/26 | 311 |
| 5/26 | 406 |
| 6/26 | 419 |
| 7/26 | 430 |
Passengers by month
By month, as a table
| passengers | |
|---|---|
| 1/25 | 39,019 |
| 2/25 | 33,678 |
| 3/25 | 45,822 |
| 4/25 | 47,315 |
| 5/25 | 65,556 |
| 6/25 | 73,300 |
| 7/25 | 75,367 |
| 8/25 | 73,633 |
| 9/25 | 57,622 |
| 10/25 | 52,134 |
| 11/25 | 48,445 |
| 12/25 | 52,404 |
| 1/26 | 41,060 |
| 2/26 | 38,914 |
| 3/26 | 46,103 |
| 4/26 | 48,724 |
| 5/26 | 69,276 |
| 6/26 | 75,994 |
| 7/26 | 78,397 |
The airlines twelve months, both directions
| Airline | Flights | Passengers | Seats filled | Service |
|---|---|---|---|---|
| Delta Air Lines Inc. DL | 3,025 | 514,812 | 90% | charter passenger service, scheduled passenger service |
| Alaska Airlines Inc. AS | 1,084 | 167,821 | 88% | charter passenger service, scheduled passenger service |
| Air Canada AC | 1 | 73 | 53% | scheduled passenger service |
The aircraft as the airlines report their types
| Aircraft | Flights | Seats a flight | Passengers |
|---|---|---|---|
| Boeing 737-900ER | 2,364 | 180 | 379,858 |
| Airbus Industrie A321-200n | 402 | 194 | 67,965 |
| Boeing B737 Max 900 | 402 | 178 | 63,001 |
| Airbus Industrie A321Neoxlr | 380 | 189 | 66,630 |
| Boeing 757-300 | 375 | 234 | 77,918 |
| Boeing 737-800 | 128 | 160 | 18,603 |
| Boeing B737 Max 800 | 34 | 160 | 4,939 |
| Airbus Industrie A350-900 | 9 | 292 | 1,422 |
| Boeing 757-200 | 8 | 198 | 1,252 |
| Airbus Industrie A330-300/333 | 2 | 282 | 362 |
| A220-300 BD-500-1A11 | 2 | 134 | 151 |
| Airbus Industrie A319 | 2 | 132 | 199 |
| Airbus Industrie A330-200 | 1 | 223 | 146 |
| Airbus Industrie A330-900 | 1 | 281 | 260 |
SEA → DTW this direction alone · flown January 2025 to July 2026
2,060 flights of 2,067 scheduled, 340,955 passengers in 383,979 seats, 616,670 pounds of freight, 91,641 pounds of mail. Delta Air Lines Inc. 1,518; Alaska Airlines Inc. 541; Air Canada 1.
DTW → SEA this direction alone · flown January 2025 to July 2026
2,050 flights of 2,072 scheduled, 341,751 passengers in 381,310 seats, 195,773 pounds of freight, 177,802 pounds of mail. Delta Air Lines Inc. 1,507; Alaska Airlines Inc. 543.
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 Detroit Metro Wayne County DTW; all routes.