Seattle-Tacoma International ⇄ Newark Liberty International SEA–EWR
Airlines flew 4,479 flights between Seattle-Tacoma International SEA in Seattle, WA and Newark Liberty International EWR in Newark, NJ in the twelve months to July 2026, both directions together: 687,350 passengers in 771,718 seats, 89% of them filled, and 6,337,154 pounds of freight. 2,402 miles, about 275 minutes in the air, on 3 airlines: Alaska Airlines Inc. (2,471), United Air Lines Inc. (1,958), Federal Express Corporation (50). 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 | 236 |
| 2/25 | 207 |
| 3/25 | 261 |
| 4/25 | 255 |
| 5/25 | 271 |
| 6/25 | 342 |
| 7/25 | 419 |
| 8/25 | 459 |
| 9/25 | 457 |
| 10/25 | 412 |
| 11/25 | 327 |
| 12/25 | 356 |
| 1/26 | 232 |
| 2/26 | 194 |
| 3/26 | 332 |
| 4/26 | 364 |
| 5/26 | 430 |
| 6/26 | 449 |
| 7/26 | 467 |
Passengers by month
By month, as a table
| passengers | |
|---|---|
| 1/25 | 35,519 |
| 2/25 | 30,236 |
| 3/25 | 38,259 |
| 4/25 | 40,302 |
| 5/25 | 39,758 |
| 6/25 | 54,784 |
| 7/25 | 67,554 |
| 8/25 | 75,231 |
| 9/25 | 68,218 |
| 10/25 | 62,185 |
| 11/25 | 48,075 |
| 12/25 | 56,187 |
| 1/26 | 35,460 |
| 2/26 | 28,283 |
| 3/26 | 49,086 |
| 4/26 | 55,238 |
| 5/26 | 65,977 |
| 6/26 | 68,979 |
| 7/26 | 74,431 |
The airlines twelve months, both directions
| Airline | Flights | Passengers | Seats filled | Service |
|---|---|---|---|---|
| Alaska Airlines Inc. AS | 2,471 | 390,985 | 90% | scheduled passenger service |
| United Air Lines Inc. UA | 1,958 | 296,365 | 88% | charter passenger service, scheduled passenger service |
| Federal Express Corporation FX | 50 | 0 | scheduled cargo service |
The aircraft as the airlines report their types
| Aircraft | Flights | Seats a flight | Passengers |
|---|---|---|---|
| Boeing B737 Max 900 | 1,931 | 178 | 307,326 |
| Boeing 737-900ER | 1,422 | 178 | 225,732 |
| Boeing B737 Max 800 | 754 | 166 | 110,304 |
| Boeing 737-800 | 224 | 160 | 32,969 |
| Airbus Industrie A319 | 71 | 126 | 8,077 |
| Boeing 767-300/300ER | 40 | 0 | 0 |
| Boeing 737-700/700LR/Max 7 | 24 | 126 | 2,377 |
| McDonnell Douglas MD-11 | 10 | 0 | 0 |
| Boeing 777-200ER/200LR/233LR | 2 | 364 | 470 |
| Airbus Industrie A320-100/200 | 1 | 150 | 95 |
SEA → EWR this direction alone · flown January 2025 to July 2026
2,212 flights of 2,268 scheduled, 345,131 passengers in 385,605 seats, 1,699,445 pounds of freight, 93,926 pounds of mail. Alaska Airlines Inc. 1,234; United Air Lines Inc. 978.
EWR → SEA this direction alone · flown January 2025 to July 2026
2,267 flights of 2,336 scheduled, 342,219 passengers in 386,113 seats, 4,637,709 pounds of freight, 86,833 pounds of mail. Alaska Airlines Inc. 1,237; United Air Lines Inc. 980; Federal Express Corporation 50.
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 Newark Liberty International EWR; all routes.