Route · JFK → SEA · 2020–2025 BTS data
New York to Seattle
The JFK–SEA corridor (New York, NY → Seattle, WA) runs ahead of the national average, served by 8 carriers across roughly 2,422 miles.
Data updated 2026-06-13
- 81.6%
- On-time
- +2.6 pts
- vs US avg
- 71 min
- Delay when late
- 16,266
- Flights
Cancelled
1.6%
Best Month
Feb 2024 93%
Worst Month
Dec 2025 42%
Distance
2,422 mi
Carriers
8
Monthly Performance
Recent 24 months of route data.
| Period | Flights | Delayed | Cancelled | Diverted | Carriers |
|---|---|---|---|---|---|
| Dec 2025 | 232 | 134 | 13 | 2 | DL,AS |
| Nov 2025 | 234 | 79 | 7 | 1 | AS,DL |
| Oct 2025 | 273 | 62 | 5 | 2 | AS,B6,DL |
| Sep 2025 | 270 | 43 | 2 | 1 | DL,AS,B6 |
| Aug 2025 | 278 | 72 | 2 | 0 | AS,B6,DL |
| Jul 2025 | 279 | 97 | 7 | 4 | AS,B6,DL |
| Jun 2025 | 270 | 117 | 4 | 0 | AS,B6,DL |
| May 2025 | 279 | 66 | 1 | 0 | AS,B6,DL |
| Apr 2025 | 228 | 39 | 2 | 0 | DL,AS,B6 |
| Mar 2025 | 217 | 43 | 1 | 1 | AS,DL |
| Feb 2025 | 162 | 44 | 1 | 0 | AS,DL |
| Jan 2025 | 164 | 31 | 0 | 0 | AS,DL |
| Dec 2024 | 236 | 39 | 0 | 0 | AS,DL |
| Nov 2024 | 235 | 18 | 0 | 1 | AS,DL |
| Oct 2024 | 246 | 32 | 1 | 0 | AS,DL,B6 |
| Sep 2024 | 270 | 35 | 0 | 0 | AS,B6,DL |
| Aug 2024 | 279 | 79 | 10 | 2 | AS,B6,DL |
| Jul 2024 | 279 | 68 | 12 | 0 | AS,B6,DL |
| Jun 2024 | 270 | 107 | 2 | 1 | AS,B6,DL |
| May 2024 | 279 | 52 | 1 | 0 | AS,B6,DL |
| Apr 2024 | 253 | 36 | 1 | 0 | AS,B6,DL |
| Mar 2024 | 222 | 33 | 0 | 0 | AS,B6,DL |
| Feb 2024 | 177 | 13 | 3 | 1 | AS,B6,DL |
| Jan 2024 | 189 | 25 | 20 | 0 | AS,B6,DL |
Cancellation Rate
1.6%
95 of 5,821 flights
Diversion Rate
0.3%
16 of 5,821 flights
Explore origin & destination
On-time and delay data for the airports this route connects.
JFK - New York
Full on-time, delay-cause, and seasonal performance for New York, NY.
Origin airport →SEA - Seattle
Full on-time, delay-cause, and seasonal performance for Seattle, WA.
Destination airport →Compare the two airports
See JFK 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 JFK–SEA.
Routes with a similar on-time rate
What the Data Says About JFK to SEA
16,266 tracked flights put the JFK to SEA pairing (New York to Seattle) at a 81.6% on-time rate, squarely in line with the wider network. Delays that do occur run 71.3 minutes on average. Across the 2,422-mile route and its 8 carriers, the trailing 24 months show 1.6% cancelled and 0.3% diverted (5,821 flights sampled).
The monthly split is wide on this route: Feb 2024 posted the strongest performance at 93% on-time, while Dec 2025 came in at just 42% - a 50-point swing worth factoring into travel timing.
Frequently Asked Questions
How often are flights delayed from JFK to SEA? ▼
What is the cancellation rate for JFK to SEA? ▼
How far is the flight from JFK to SEA? ▼
When is the best time to fly from JFK to SEA? ▼
Flight Guides
Tips and data-driven advice for choosing reliable routes.
Explore PlainFlights
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.