Fort Lauderdale (FLL) to Seattle (SEA) flights
Alaska Airlines, Delta Air Lines fly nonstop from Fort Lauderdale Hollywood International Airport to Seattle-Tacoma International Airport, with about 14 flights a week in July 2026. The 2,717-mile flight takes about 6h 38m gate to gate.
- Distance
- 2,717 mi · 4,373 km
- Flight time
- 6h 38m
- Airlines
- 2
- Seats filled
- 81%
Airlines flying FLL to SEA
| Airline | Flights a week | Aircraft | Passengers (12 months) | Flight time |
|---|---|---|---|---|
| Alaska Airlines | 7 | Boeing 737 MAX 9, Boeing 737-900ER, Boeing 737-800 | 64,151 | 6h 43m |
| Delta Air Lines | 7 | Airbus A321 | 55,812 | 6h 31m |
Airlines are the operating carrier: regional airlines such as SkyWest or Horizon often fly under a larger airline's brand.
FLL to SEA flight schedule
2 flight numbers flew this route in August 2026, 2 of them almost daily. The first usually leaves at 8:10am and the last at 6:30pm. 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) |
|---|---|---|---|---|
| DL 356Delta Air Lines | 8:10am | 11:39am | 31 | 82% |
| AS 517Alaska Airlines | 6:30pm | 9:59pm | 31 | 67% |
Is FLL to SEA on time?
From September 2025 to August 2026, 73% of 826 flights arrived within 15 minutes of schedule and 1.2% were cancelled. Flights leaving around 8am were the most punctual (77%), those around 6pm the least (69%). Most delay time was caused by late-arriving aircraft (47%).
| Airline | Flights | On time | Average delay | Cancelled |
|---|---|---|---|---|
| Alaska Airlines | 462 | 68% | 17 min | 1.1% |
| Delta Air Lines | 364 | 80% | 13 min | 1.4% |
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 | 140 | 75% | |
| 8am to 9am | 298 | 77% | |
| 5pm to 6pm | 60 | 73% | |
| 6pm to 7pm | 328 | 69% |
Flights by month
| Month | Flights | Flights, relative | Passengers |
|---|---|---|---|
| August 2025 | 62 | 9,212 | |
| September 2025 | 59 | 7,383 | |
| October 2025 | 62 | 8,105 | |
| November 2025 | 63 | 9,183 | |
| December 2025 | 88 | 12,678 | |
| January 2026 | 66 | 10,093 | |
| February 2026 | 66 | 9,617 | |
| March 2026 | 81 | 12,085 | |
| April 2026 | 77 | 11,255 | |
| May 2026 | 61 | 10,012 | |
| June 2026 | 60 | 10,164 | |
| July 2026 | 60 | 10,176 |
Related
Source: US Department of Transportation, T-100 Segment data, August 2025 to July 2026.