Seattle-Tacoma International ⇄ Charleston Afb/Intl SEA–CHS
Airlines flew 694 flights between Seattle-Tacoma International SEA in Seattle, WA and Charleston Afb/Intl CHS in Charleston, SC in the twelve months to July 2026, both directions together: 100,946 passengers in 122,052 seats, 83% of them filled, and 110,958 pounds of freight. 2,415 miles, about 274 minutes in the air, on 2 airlines: Alaska Airlines Inc. (693), Atlas Air Inc. (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 | 46 |
| 2/25 | 48 |
| 3/25 | 63 |
| 4/25 | 60 |
| 5/25 | 62 |
| 6/25 | 60 |
| 7/25 | 61 |
| 8/25 | 63 |
| 9/25 | 60 |
| 10/25 | 58 |
| 11/25 | 46 |
| 12/25 | 62 |
| 1/26 | 49 |
| 2/26 | 50 |
| 3/26 | 62 |
| 4/26 | 60 |
| 5/26 | 62 |
| 6/26 | 60 |
| 7/26 | 62 |
Passengers by month
By month, as a table
| passengers | |
|---|---|
| 1/25 | 5,714 |
| 2/25 | 6,562 |
| 3/25 | 9,064 |
| 4/25 | 9,244 |
| 5/25 | 9,190 |
| 6/25 | 9,313 |
| 7/25 | 9,931 |
| 8/25 | 10,029 |
| 9/25 | 8,595 |
| 10/25 | 8,522 |
| 11/25 | 6,752 |
| 12/25 | 8,626 |
| 1/26 | 5,508 |
| 2/26 | 6,644 |
| 3/26 | 9,293 |
| 4/26 | 9,117 |
| 5/26 | 9,332 |
| 6/26 | 9,015 |
| 7/26 | 9,513 |
The airlines twelve months, both directions
| Airline | Flights | Passengers | Seats filled | Service |
|---|---|---|---|---|
| Alaska Airlines Inc. AS | 693 | 100,946 | 83% | scheduled passenger service |
| Atlas Air Inc. 5Y | 1 | 0 | charter cargo service |
The aircraft as the airlines report their types
| Aircraft | Flights | Seats a flight | Passengers |
|---|---|---|---|
| Boeing 737-900ER | 334 | 178 | 48,828 |
| Boeing B737 Max 900 | 285 | 178 | 42,359 |
| Boeing 737-800 | 68 | 160 | 8,885 |
| Boeing B737 Max 800 | 6 | 161 | 874 |
| Boeing 747-400 | 1 | 0 | 0 |
SEA → CHS this direction alone · flown January 2025 to July 2026
348 flights of 345 scheduled, 52,531 passengers in 61,276 seats, 36,666 pounds of freight. Alaska Airlines Inc. 348.
CHS → SEA this direction alone · flown January 2025 to July 2026
346 flights of 347 scheduled, 48,415 passengers in 60,776 seats, 74,292 pounds of freight. Alaska Airlines Inc. 345; Atlas Air Inc. 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 Charleston Afb/Intl CHS; all routes.