Route · FLL → SEA · 2020–2025 BTS data
Fort Lauderdale to Seattle
The FLL–SEA corridor (Fort Lauderdale, FL → Seattle, WA) runs behind the national average, served by 5 carriers across roughly 2,717 miles.
Data updated 2026-06-13
- 75%
- On-time
- -4 pts
- vs US avg
- 67 min
- Delay when late
- 4,396
- Flights
Cancelled
2.3%
Best Month
Oct 2024 90%
Worst Month
Dec 2025 52%
Distance
2,717 mi
Carriers
5
Monthly Performance
Recent 24 months of route data.
| Period | Flights | Delayed | Cancelled | Diverted | Carriers |
|---|---|---|---|---|---|
| Dec 2025 | 93 | 45 | 1 | 4 | DL,AS |
| Nov 2025 | 65 | 18 | 1 | 1 | AS,DL |
| Oct 2025 | 62 | 13 | 0 | 0 | AS,DL |
| Sep 2025 | 60 | 15 | 1 | 0 | DL,AS |
| Aug 2025 | 62 | 28 | 0 | 0 | AS,DL |
| Jul 2025 | 62 | 22 | 3 | 1 | AS,DL |
| Jun 2025 | 60 | 24 | 1 | 0 | AS,DL |
| May 2025 | 73 | 20 | 0 | 0 | AS,DL |
| Apr 2025 | 83 | 18 | 0 | 0 | AS,DL |
| Mar 2025 | 87 | 20 | 1 | 1 | AS,DL |
| Feb 2025 | 76 | 20 | 1 | 0 | AS,DL |
| Jan 2025 | 85 | 27 | 0 | 1 | AS,DL |
| Dec 2024 | 93 | 32 | 0 | 2 | AS,DL |
| Nov 2024 | 67 | 11 | 1 | 0 | AS,DL |
| Oct 2024 | 61 | 6 | 1 | 0 | AS,DL |
| Sep 2024 | 60 | 12 | 0 | 0 | AS,DL |
| Aug 2024 | 62 | 15 | 2 | 1 | AS,DL |
| Jul 2024 | 62 | 13 | 2 | 0 | AS,DL |
| Jun 2024 | 60 | 14 | 2 | 1 | AS,DL |
| May 2024 | 77 | 19 | 0 | 3 | AS,DL |
| Apr 2024 | 90 | 38 | 0 | 2 | AS,DL |
| Mar 2024 | 93 | 36 | 0 | 3 | AS,DL |
| Feb 2024 | 87 | 16 | 0 | 1 | AS,DL |
| Jan 2024 | 93 | 16 | 24 | 2 | AS,DL |
Cancellation Rate
2.3%
41 of 1,773 flights
Diversion Rate
1.3%
23 of 1,773 flights
Explore origin & destination
On-time and delay data for the airports this route connects.
FLL - Fort Lauderdale
Full on-time, delay-cause, and seasonal performance for Fort Lauderdale, FL.
Origin airport →SEA - Seattle
Full on-time, delay-cause, and seasonal performance for Seattle, WA.
Destination airport →Compare the two airports
See FLL and SEA side by side on delays, cancellations, and reliability.
Open comparison tool →Similar routes
Other BTS-tracked routes with comparable performance or trip length to FLL–SEA.
Routes with a similar on-time rate
What the Data Says About FLL to SEA
The Fort Lauderdale to Seattle corridor (FLL to SEA) posts a 75% on-time rate on the lower edge of the average band, based on 4,396 tracked flights. Late flights run 67.3 minutes behind on average. 5 carriers cover the 2,717-mile route; over the last 24 months, 41 of 1,773 flights were cancelled (2.3%) and 1.3% diverted.
The monthly split is wide on this route: Oct 2024 posted the strongest performance at 90% on-time, while Dec 2025 came in at just 52% - a 39-point swing worth factoring into travel timing.
Frequently Asked Questions
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Data source
Data Source: Bureau of Transportation Statistics (BTS), On-Time Performance Data. Statistics reflect cumulative performance across all available reporting periods.
Read our methodology - how this data is sourced, computed, and verified.
Every figure on PlainFlights is rendered directly from BTS On-Time Performance data, no number is typed in by an editor. This page aggregates this specific route's on-time performance and monthly trend, live from the dataset. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error.