New York (JFK) to Seattle (SEA) flights
Alaska Airlines, Delta Air Lines, JetBlue fly nonstop from John F. Kennedy International Airport to Seattle-Tacoma International Airport, with about 57 flights a week in July 2026. The 2,422-mile flight takes about 6h 19m gate to gate.
- Distance
- 2,422 mi · 3,898 km
- Flight time
- 6h 19m
- Airlines
- 3
- Seats filled
- 86%
Airlines flying JFK to SEA
| Airline | Flights a week | Aircraft | Passengers (12 months) | Flight time |
|---|---|---|---|---|
| Alaska Airlines | 26 | Boeing 737-900ER, Boeing 737 MAX 9, Boeing 737-800 | 203,601 | 6h 21m |
| Delta Air Lines | 25 | Airbus A321, Boeing 757-200, Airbus A330-900 | 215,301 | 6h 16m |
| JetBlue | 6 | Airbus A321 | 26,530 | 6h 19m |
Airlines are the operating carrier: regional airlines such as SkyWest or Horizon often fly under a larger airline's brand.
JFK to SEA 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 8:23pm. 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 21Alaska Airlines | 7:00am | 10:16am | 31 | 69% |
| DL 699Delta Air Lines | 7:01am | 10:13am | 31 | 74% |
| DL 1719Delta Air Lines | 11:32am | 2:50pm | 31 | 80% |
| AS 23Alaska Airlines | 1:00pm | 4:19pm | 31 | 78% |
| AS 31Alaska Airlines | 4:29pm | 8:09pm | 31 | 72% |
| DL 740Delta Air Lines | 4:50pm | 8:20pm | 31 | 69% |
| B6 263JetBlue | 5:45pm | 9:08pm | 31 | 65% |
| DL 688Delta Air Lines | 7:35pm | 11:20pm | 31 | 64% |
| AS 17Alaska Airlines | 8:23pm | 11:55pm | 30 | 50% |
Is JFK to SEA on time?
From September 2025 to August 2026, 70% of 2,906 flights arrived within 15 minutes of schedule and 3.4% were cancelled. Flights leaving around 11am were the most punctual (80%), those around 6pm the least (53%). Most delay time was caused by air traffic control and airport congestion (41%).
| Airline | Flights | On time | Average delay | Cancelled |
|---|---|---|---|---|
| Alaska Airlines | 1,401 | 68% | 22 min | 3.4% |
| Delta Air Lines | 1,339 | 71% | 18 min | 3.2% |
| JetBlue | 166 | 65% | 34 min | 6% |
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 | 723 | 72% | |
| 11am to 12pm | 478 | 80% | |
| 1pm to 2pm | 83 | 85% | |
| 4pm to 5pm | 700 | 70% | |
| 5pm to 6pm | 153 | 62% | |
| 6pm to 7pm | 394 | 53% | |
| 7pm to 8pm | 230 | 74% | |
| 8pm to 9pm | 110 | 62% |
Flights by month
| Month | Flights | Flights, relative | Passengers |
|---|---|---|---|
| August 2025 | 276 | 47,668 | |
| September 2025 | 269 | 42,357 | |
| October 2025 | 268 | 41,661 | |
| November 2025 | 227 | 34,601 | |
| December 2025 | 218 | 34,999 | |
| January 2026 | 178 | 27,042 | |
| February 2026 | 165 | 24,384 | |
| March 2026 | 208 | 31,157 | |
| April 2026 | 224 | 32,522 | |
| May 2026 | 258 | 41,006 | |
| June 2026 | 268 | 44,394 | |
| July 2026 | 255 | 43,767 |
Related
Source: US Department of Transportation, T-100 Segment data, August 2025 to July 2026.