Flights Seattle → Fort Lauderdale
SEA → FLL
How long is the flight from Seattle to Fort Lauderdale?
The flight from Seattle (SEA) to Fort Lauderdale (FLL) takes 5h 19m on average. That is the median time recorded across 2 scheduled flights on this leg; the actual time varies by a few minutes with wind, routing and take-off queues.
Route overview
The flight route from Seattle to Fort Lauderdale has an on-time performance rate of 83%, with an average delay time of 9.1 minutes per flight. Over the course of a year, this route sees approximately 232 flights, connecting passengers to one of the busiest airports in terms of annual passenger traffic, which handles around 31,686,404 travelers annually.
Your rights on this US flight (DOT)
US flights have no statutory cash compensation for delays. Under the US DOT rules, if your flight is cancelled or significantly changed and you decline rebooking, you're owed an automatic refund of the unused ticket. The tarmac-delay limit is 3 hours (domestic) / 4 hours (international). Amenities for controllable delays depend on each airline's contract of carriage.
US flight refund rules & checker →General information, not legal advice.
The Seattle (SEA) → Fort Lauderdale (FLL) route is operated by Alaska Airlines. Across 537 flights monitored in recent months, 86% arrived on time (within 15 min of schedule), with an average delay of 7 minutes. The cancellation rate is 4.47%. FlightGuard's average computed risk is 20.8/100 (medium), updated in real time from weather, ATC delays, strikes, NOTAMs, fuel and flight history. At Fort Lauderdale the average ATFM delay is 5.5 minutes (main cause: atfm). Departing from Seattle the average ATFM delay is 5.5 minutes.
Heading to Fort Lauderdale: what to expect in this direction
Flying from Seattle (SEA) to Fort Lauderdale (FLL) heads east for about 4,368 km, a flight time of roughly 5h 19m.
Departures from Seattle on this leg cluster in the overnight window: about 74% of SEA-FLL flights take off then.
Air-traffic congestion: departing Seattle the average ATFM delay is 5.5 min (atfm); arriving into Fort Lauderdale it is 5.5 min (atfm).
Across 537 tracked SEA-FLL flights, 86% left on time with an average delay of 7 min and a 4.5% cancellation rate.
Route facts
Flights on this route
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Airline punctuality on this route
| Airline | On-time | Average delay | Cancellations |
|---|---|---|---|
| Alaska Airlines (AS) | 85% | -1 min | 0.5% |
Airlines operating SEA-FLL
Airports
Frequently asked questions about SEA-FLL
The flight from Seattle (SEA) to Fort Lauderdale (FLL) takes 5h 19m on average. That is the median time recorded across 2 scheduled flights on this leg; the actual time varies by a few minutes with wind, routing and take-off queues.
On the Seattle (SEA) -> Fort Lauderdale (FLL) route, on-time performance is 86% with an average delay of 7 minutes, based on 537 tracked flights.
The cancellation rate on Seattle-Fort Lauderdale is 4.47% across 537 monitored flights.
The route is operated by 1 airline: Alaska Airlines.
Enter your flight number on FlightGuard for a real-time analysis based on 9 factors: weather at Fort Lauderdale, ATC delays, strikes, NOTAMs, fuel, airline punctuality and recent trends.
US flights have no statutory cash compensation for delays. Under US DOT rules, if the airline cancels or significantly changes your flight and you decline rebooking, you're owed an automatic refund of the unused ticket. The tarmac-delay limit is 3 hours (domestic) / 4 hours (international). Meals or hotels for controllable delays depend on each airline's contract of carriage.
