Seattle (SEA) to New York (JFK) flights
Alaska Airlines, Delta Air Lines, JetBlue fly nonstop from Seattle-Tacoma International Airport to John F. Kennedy International Airport, with about 57 flights a week in July 2026. The 2,422-mile flight takes about 5h 16m gate to gate.
- Distance
- 2,422 mi · 3,898 km
- Flight time
- 5h 16m
- Airlines
- 3
- Seats filled
- 87%
Airlines flying SEA to JFK
| Airline | Flights a week | Aircraft | Passengers (12 months) | Flight time |
|---|---|---|---|---|
| Alaska Airlines | 26 | Boeing 737 MAX 9, Boeing 737-900ER, Boeing 737-800 | 204,695 | 5h 17m |
| Delta Air Lines | 25 | Airbus A321, Boeing 757-200, Boeing 767-300/300ER | 218,058 | 5h 15m |
| JetBlue | 6 | Airbus A321 | 26,936 | 5h 9m |
Airlines are the operating carrier: regional airlines such as SkyWest or Horizon often fly under a larger airline's brand.
SEA to JFK flight schedule
9 flight numbers flew this route in August 2026, 9 of them almost daily. The first usually leaves at 7:00am and the last at 11:15pm. 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 26Alaska Airlines | 7:00am | 3:29pm | 31 | 87% |
| DL 429Delta Air Lines | 7:15am | 3:49pm | 31 | 88% |
| AS 34Alaska Airlines | 9:29am | 5:55pm | 31 | 77% |
| DL 415Delta Air Lines | 11:34am | 8:15pm | 31 | 72% |
| AS 16Alaska Airlines | 2:02pm | 10:29pm | 30 | 64% |
| DL 461Delta Air Lines | 3:55pm | 12:15am | 31 | 49% |
| B6 264JetBlue | 10:13pm | 6:30am | 31 | 70% |
| DL 452Delta Air Lines | 10:40pm | 6:50am | 31 | 84% |
| AS 22Alaska Airlines | 11:15pm | 7:38am | 30 | 84% |
Is SEA to JFK on time?
From September 2025 to August 2026, 78% of 2,906 flights arrived within 15 minutes of schedule and 3.2% were cancelled. Flights leaving around 7am were the most punctual (89%), those around 2pm the least (65%). Most delay time was caused by air traffic control and airport congestion (41%).
| Airline | Flights | On time | Average delay | Cancelled |
|---|---|---|---|---|
| Alaska Airlines | 1,402 | 78% | 13 min | 2.6% |
| Delta Air Lines | 1,338 | 79% | 15 min | 3.2% |
| JetBlue | 166 | 70% | 52 min | 7.8% |
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 |
|---|---|---|---|
| 7am to 8am | 610 | 89% | |
| 8am to 9am | 91 | 93% | |
| 9am to 10am | 111 | 77% | |
| 10am to 11am | 112 | 84% | |
| 11am to 12pm | 383 | 67% | |
| 1pm to 2pm | 135 | 69% | |
| 2pm to 3pm | 360 | 65% | |
| 3pm to 4pm | 98 | 73% | |
| 4pm to 5pm | 112 | 68% | |
| 9pm to 10pm | 152 | 88% | |
| 10pm to 11pm | 447 | 76% | |
| 11pm to 12am | 243 | 87% |
Flights by month
| Month | Flights | Flights, relative | Passengers |
|---|---|---|---|
| August 2025 | 274 | 48,715 | |
| September 2025 | 267 | 44,681 | |
| October 2025 | 266 | 42,517 | |
| November 2025 | 218 | 33,489 | |
| December 2025 | 219 | 35,167 | |
| January 2026 | 179 | 28,359 | |
| February 2026 | 166 | 25,157 | |
| March 2026 | 208 | 31,968 | |
| April 2026 | 226 | 33,735 | |
| May 2026 | 255 | 39,045 | |
| June 2026 | 265 | 44,692 | |
| July 2026 | 251 | 42,164 |
Related
Source: US Department of Transportation, T-100 Segment data, August 2025 to July 2026.