Seattle (SEA) to Newark (EWR) flights
Alaska Airlines, United Airlines fly nonstop from Seattle-Tacoma International Airport to Newark Liberty International Airport, with about 52 flights a week in July 2026. The 2,402-mile flight takes about 5h 6m gate to gate.
- Distance
- 2,402 mi · 3,866 km
- Flight time
- 5h 6m
- Airlines
- 2
- Seats filled
- 90%
Airlines flying SEA to EWR
| Airline | Flights a week | Aircraft | Passengers (12 months) | Flight time |
|---|---|---|---|---|
| Alaska Airlines | 26 | Boeing 737-900ER, Boeing 737 MAX 9, Boeing 737-800 | 195,211 | 5h 6m |
| United Airlines | 26 | Boeing 737 MAX 9, Boeing 737 MAX 8, Boeing 737-900ER | 149,681 | 5h 6m |
Airlines are the operating carrier: regional airlines such as SkyWest or Horizon often fly under a larger airline's brand.
SEA to EWR flight schedule
12 flight numbers flew this route in August 2026, 4 of them almost daily. The first usually leaves at 7:05am and the last at 11:00pm. Times are local and can change; check with the airline before you book.
| Flight | Departs | Arrives | Days flown in August 2026 | On time (12 months) |
|---|---|---|---|---|
| AS 239Alaska Airlines | 7:05am | 3:31pm | 18 | 91% |
| UA 1900United Airlines | 7:30am | 3:56pm | 31 | 92% |
| AS 295Alaska Airlines | 8:50am | 5:17pm | 13 | 81% |
| AS 292Alaska Airlines | 9:59am | 6:26pm | 13 | 91% |
| AS 477Alaska Airlines | 10:05am | 6:29pm | 18 | 76% |
| UA 1708United Airlines | 1:00pm | 9:31pm | 31 | 68% |
| UA 2100United Airlines | 3:23pm | 11:49pm | 10 | 81% |
| UA 2058United Airlines | 3:34pm | 11:59pm | 15 | 73% |
| AS 263Alaska Airlines | 3:38pm | 11:59pm | 18 | 57% |
| AS 314Alaska Airlines | 10:40pm | 6:59am | 31 | 89% |
| UA 2017United Airlines | 10:58pm | 7:10am | 21 | 81% |
| UA 1274United Airlines | 11:00pm | 7:18am | 10 | 85% |
Is SEA to EWR on time?
From September 2025 to August 2026, 83% of 2,264 flights arrived within 15 minutes of schedule and 2.1% were cancelled. Flights leaving around 6am were the most punctual (96%), those around 3pm the least (68%). Most delay time was caused by air traffic control and airport congestion (45%).
| Airline | Flights | On time | Average delay | Cancelled |
|---|---|---|---|---|
| Alaska Airlines | 1,274 | 83% | 10 min | 2.3% |
| United Airlines | 990 | 84% | 14 min | 1.9% |
Airlines as sold: flights operated by regional partners count under the airline on the ticket. Average delay is across all completed flights, early arrivals counted as zero.
On-time arrivals by departure time
| Scheduled departure | Flights | On time, relative | On time |
|---|---|---|---|
| 6am to 7am | 223 | 96% | |
| 7am to 8am | 316 | 92% | |
| 8am to 9am | 251 | 82% | |
| 9am to 10am | 74 | 83% | |
| 10am to 11am | 248 | 73% | |
| 12pm to 1pm | 129 | 72% | |
| 1pm to 2pm | 104 | 70% | |
| 2pm to 3pm | 66 | 88% | |
| 3pm to 4pm | 180 | 68% | |
| 9pm to 10pm | 131 | 94% | |
| 10pm to 11pm | 258 | 86% | |
| 11pm to 12am | 267 | 85% |
Flights by month
| Month | Flights | Flights, relative | Passengers |
|---|---|---|---|
| August 2025 | 227 | 38,170 | |
| September 2025 | 227 | 35,347 | |
| October 2025 | 204 | 31,968 | |
| November 2025 | 159 | 23,576 | |
| December 2025 | 178 | 28,506 | |
| January 2026 | 113 | 17,763 | |
| February 2026 | 95 | 14,248 | |
| March 2026 | 164 | 24,357 | |
| April 2026 | 181 | 27,943 | |
| May 2026 | 212 | 32,194 | |
| June 2026 | 222 | 34,159 | |
| July 2026 | 229 | 36,661 |
Related
Source: US Department of Transportation, T-100 Segment data, August 2025 to July 2026.