Route · ACK → DCA · 2020–2025 BTS data
Nantucket to Washington
The ACK–DCA corridor (Nantucket, MA → Washington, DC) runs ahead of the national average, served by 3 carriers across roughly 405 miles.
Data updated 2026-06-13
- 79.7%
- On-time
- +0.7 pts
- vs US avg
- 74 min
- Delay when late
- 1,353
- Flights
Cancelled
4.4%
Best Month
Aug 2021 93%
Worst Month
Jul 2023 73%
Distance
405 mi
Carriers
3
Monthly Performance
Recent 24 months of route data.
| Period | Flights | Delayed | Cancelled | Diverted | Carriers |
|---|---|---|---|---|---|
| Sep 2025 | 34 | 12 | 0 | 0 | YX,B6 |
| Aug 2025 | 98 | 17 | 1 | 0 | YX,B6 |
| Jul 2025 | 96 | 24 | 11 | 1 | B6,YX |
| Jun 2025 | 45 | 17 | 3 | 0 | B6,YX |
| Sep 2024 | 35 | 6 | 0 | 0 | YX,B6 |
| Aug 2024 | 90 | 23 | 5 | 0 | B6,YX |
| Jul 2024 | 97 | 24 | 3 | 1 | B6,YX |
| Jun 2024 | 52 | 9 | 0 | 0 | B6,YX |
| Sep 2023 | 37 | 6 | 3 | 0 | B6,MQ,YX |
| Aug 2023 | 82 | 16 | 1 | 0 | B6,MQ,YX |
| Jul 2023 | 98 | 26 | 8 | 3 | B6,MQ,YX |
| Jun 2023 | 47 | 15 | 3 | 0 | B6,MQ,YX |
| Sep 2022 | 41 | 9 | 0 | 0 | YX,B6 |
| Aug 2022 | 79 | 12 | 3 | 0 | B6,YX |
| Jul 2022 | 90 | 13 | 3 | 2 | YX,B6 |
| Jun 2022 | 64 | 12 | 3 | 0 | YX,B6 |
| Aug 2021 | 57 | 4 | 3 | 2 | YX,B6 |
| Jul 2021 | 61 | 12 | 4 | 0 | YX,B6 |
| Jun 2021 | 43 | 6 | 1 | 0 | YX,B6 |
| Aug 2020 | 55 | 4 | 4 | 0 | B6,YX |
| Jul 2020 | 52 | 8 | 0 | 0 | B6,YX |
Cancellation Rate
4.4%
59 of 1,353 flights
Diversion Rate
0.7%
9 of 1,353 flights
Explore origin & destination
On-time and delay data for the airports this route connects.
ACK - Nantucket
Full on-time, delay-cause, and seasonal performance for Nantucket, MA.
Origin airport →DCA - Washington
Full on-time, delay-cause, and seasonal performance for Washington, DC.
Destination airport →Compare the two airports
See ACK and DCA side by side on delays, cancellations, and reliability.
Open comparison tool →Similar routes
Other BTS-tracked routes with comparable performance or trip length to ACK–DCA.
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What the Data Says About ACK to DCA
1,353 tracked flights put the ACK to DCA pairing (Nantucket to Washington) at a 79.7% on-time rate, squarely in line with the wider network. Delays that do occur run 73.9 minutes on average. Across the 405-mile route and its 3 carriers, the trailing 24 months show 4.4% cancelled and 0.7% diverted (1,353 flights sampled).
The monthly split is wide on this route: Aug 2021 posted the strongest performance at 93% on-time, while Jul 2023 came in at just 73% - a 20-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.