Delta Air Lines is the most reliable airline on the SEA to FLL route with a 81% on-time rate, compared to Alaska Airlines at 81%. Based on 1,304 flights tracked.
Source: Bureau of Transportation Statistics. Updated October 2026.Best Airline: SEA to FLL
Seattle to Fort Lauderdale — airline reliability comparison
On-Time Rate by Airline
Delta Air Lines81%
Alaska Airlines81%
SEA to FLL Airline Comparison
| Airline | On-Time % | Cancel % | Avg Delay | Flights |
|---|---|---|---|---|
| Delta Air LinesDLBest | 81% | 1.1% | 61m | 1,304 |
| Alaska AirlinesASWorst | 81% | 1.3% | 46m | 1,905 |
Route Overview
81%
Overall On-Time
52m
Avg Delay
1.4%
Cancel Rate
3,210
Total Flights
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Data last updated October 2026. Source: Bureau of Transportation Statistics.