Route · MSY → SEA · 2020–2025 BTS data
New Orleans to Seattle
The MSY–SEA corridor (New Orleans, LA → Seattle, WA) runs ahead of the national average, served by 3 carriers across roughly 2,086 miles.
Data updated 2026-06-13
- 79.4%
- On-time
- +0.4 pts
- vs US avg
- 61 min
- Delay when late
- 2,980
- Flights
Cancelled
1.0%
Best Month
Feb 2024 93%
Worst Month
Jul 2024 55%
Distance
2,086 mi
Carriers
3
Monthly Performance
Recent 24 months of route data.
| Period | Flights | Delayed | Cancelled | Diverted | Carriers |
|---|---|---|---|---|---|
| Dec 2025 | 54 | 18 | 0 | 0 | AS |
| Nov 2025 | 59 | 18 | 1 | 0 | AS |
| Oct 2025 | 53 | 19 | 1 | 0 | AS |
| Sep 2025 | 48 | 10 | 1 | 0 | DL,AS |
| Aug 2025 | 57 | 19 | 0 | 0 | AS |
| Jul 2025 | 61 | 18 | 0 | 0 | AS |
| Jun 2025 | 60 | 27 | 1 | 0 | AS |
| May 2025 | 62 | 17 | 0 | 0 | AS |
| Apr 2025 | 60 | 12 | 0 | 0 | AS |
| Mar 2025 | 46 | 9 | 0 | 0 | AS,DL |
| Feb 2025 | 44 | 13 | 0 | 0 | AS,DL |
| Jan 2025 | 62 | 12 | 5 | 0 | AS |
| Dec 2024 | 55 | 13 | 0 | 0 | AS |
| Nov 2024 | 56 | 10 | 0 | 0 | AS |
| Oct 2024 | 54 | 7 | 0 | 0 | AS |
| Sep 2024 | 48 | 7 | 1 | 0 | AS |
| Aug 2024 | 56 | 14 | 1 | 0 | AS |
| Jul 2024 | 62 | 28 | 2 | 0 | AS |
| Jun 2024 | 60 | 16 | 0 | 1 | AS |
| May 2024 | 62 | 18 | 0 | 0 | AS |
| Apr 2024 | 60 | 18 | 0 | 0 | AS |
| Mar 2024 | 62 | 11 | 0 | 1 | AS |
| Feb 2024 | 58 | 4 | 0 | 0 | AS |
| Jan 2024 | 70 | 18 | 1 | 0 | AS,DL |
Cancellation Rate
1.0%
14 of 1,369 flights
Diversion Rate
0.1%
2 of 1,369 flights
Explore origin & destination
On-time and delay data for the airports this route connects.
MSY - New Orleans
Full on-time, delay-cause, and seasonal performance for New Orleans, LA.
Origin airport →SEA - Seattle
Full on-time, delay-cause, and seasonal performance for Seattle, WA.
Destination airport →Compare the two airports
See MSY 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 MSY–SEA.
Routes with a similar on-time rate
What the Data Says About MSY to SEA
2,980 tracked flights put the MSY to SEA pairing (New Orleans to Seattle) at a 79.4% on-time rate, squarely in line with the wider network. Delays that do occur run 61.1 minutes on average. Across the 2,086-mile route and its 3 carriers, the trailing 24 months show 1.0% cancelled and 0.1% diverted (1,369 flights sampled).
The monthly split is wide on this route: Feb 2024 posted the strongest performance at 93% on-time, while Jul 2024 came in at just 55% - a 38-point swing worth factoring into travel timing.
Frequently Asked Questions
How often are flights delayed from MSY to SEA? ▼
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Flight Guides
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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.