Seattle-Tacoma International ⇄ Hartsfield/Jackson Atlanta International SEA–ATL
Airlines flew 6,655 flights between Seattle-Tacoma International SEA in Seattle, WA and Hartsfield/Jackson Atlanta International ATL in Atlanta, GA in the twelve months to July 2026, both directions together: 1,090,996 passengers in 1,241,019 seats, 88% of them filled, and 12,783,445 pounds of freight. 2,182 miles, about 248 minutes in the air, on 7 airlines: Delta Air Lines Inc. (4,770), Alaska Airlines Inc. (1,778), Korean Air Lines Co. Ltd. (102), Atlas Air Inc. (2) and 3 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 | 428 |
| 2/25 | 377 |
| 3/25 | 455 |
| 4/25 | 496 |
| 5/25 | 595 |
| 6/25 | 653 |
| 7/25 | 701 |
| 8/25 | 636 |
| 9/25 | 578 |
| 10/25 | 591 |
| 11/25 | 520 |
| 12/25 | 546 |
| 1/26 | 439 |
| 2/26 | 400 |
| 3/26 | 462 |
| 4/26 | 516 |
| 5/26 | 607 |
| 6/26 | 661 |
| 7/26 | 699 |
Passengers by month
By month, as a table
| passengers | |
|---|---|
| 1/25 | 69,557 |
| 2/25 | 62,323 |
| 3/25 | 73,941 |
| 4/25 | 78,583 |
| 5/25 | 94,582 |
| 6/25 | 113,084 |
| 7/25 | 122,736 |
| 8/25 | 112,892 |
| 9/25 | 98,064 |
| 10/25 | 91,687 |
| 11/25 | 77,687 |
| 12/25 | 87,201 |
| 1/26 | 67,958 |
| 2/26 | 63,032 |
| 3/26 | 73,121 |
| 4/26 | 79,755 |
| 5/26 | 101,464 |
| 6/26 | 115,361 |
| 7/26 | 122,774 |
The airlines twelve months, both directions
| Airline | Flights | Passengers | Seats filled | Service |
|---|---|---|---|---|
| Delta Air Lines Inc. DL | 4,770 | 827,092 | 89% | charter passenger service, scheduled passenger service |
| Alaska Airlines Inc. AS | 1,778 | 263,727 | 85% | scheduled passenger service |
| Korean Air Lines Co. Ltd. KE | 102 | 0 | scheduled cargo service | |
| Atlas Air Inc. 5Y | 2 | 177 | 47% | charter passenger service |
| SkyWest Airlines Inc. OO | 1 | 0 | 0% | scheduled passenger service |
| Air Transport International 8C | 1 | 0 | charter cargo service | |
| Lynden Air Cargo Airlines L2 | 1 | 0 | charter cargo service |
The aircraft as the airlines report their types
| Aircraft | Flights | Seats a flight | Passengers |
|---|---|---|---|
| Boeing 737-900ER | 3,215 | 179 | 506,925 |
| Boeing 757-300 | 936 | 234 | 196,844 |
| Boeing B737 Max 900 | 726 | 178 | 108,346 |
| Boeing 757-200 | 725 | 194 | 127,959 |
| Airbus Industrie A321-200n | 507 | 186 | 86,391 |
| Boeing 737-800 | 241 | 160 | 33,010 |
| Boeing B747-8 | 102 | 0 | 0 |
| Boeing 767-300/300ER | 91 | 208 | 17,275 |
| Boeing B737 Max 800 | 31 | 161 | 4,598 |
| Boeing 767-400/ER | 23 | 186 | 1,304 |
| Airbus Industrie A350-900 | 20 | 256 | 3,653 |
| Airbus Industrie A330-300/333 | 13 | 282 | 1,309 |
| Airbus Industrie A330-900 | 13 | 281 | 2,124 |
| Airbus Industrie A321Neoxlr | 6 | 189 | 1,081 |
| Airbus Industrie A330-200 | 2 | 223 | 0 |
| Boeing 747-400 | 2 | 189 | 177 |
| Embraer ERJ-175 | 1 | 70 | 0 |
| Lockheed L100-30/L-382E | 1 | 0 | 0 |
SEA → ATL this direction alone · flown January 2025 to July 2026
3,283 flights of 3,287 scheduled, 542,844 passengers in 621,952 seats, 4,093,796 pounds of freight, 198,806 pounds of mail. Delta Air Lines Inc. 2,393; Alaska Airlines Inc. 888; Atlas Air Inc. 1; SkyWest Airlines Inc. 1.
ATL → SEA this direction alone · flown January 2025 to July 2026
3,372 flights of 3,286 scheduled, 548,152 passengers in 619,067 seats, 8,689,649 pounds of freight, 139,416 pounds of mail. Delta Air Lines Inc. 2,377; Alaska Airlines Inc. 890; Korean Air Lines Co. Ltd. 102; Atlas Air Inc. 1; Air Transport International 1; Lynden Air Cargo 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 Hartsfield/Jackson Atlanta International ATL; all routes.