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Route · ATY → DEN · 2020–2025 BTS data

Watertown to Denver

The ATY–DEN corridor (Watertown, SD → Denver, CO) runs ahead of the national average, served by 1 carrier across roughly 519 miles.

Data updated 2026-06-13

83.7%
On-time
+4.7 pts
vs US avg
128 min
Delay when late
763
Flights

Cancelled

1.9%

Best Month

N/A

Worst Month

N/A

Distance

519 mi

Carriers

1

Monthly Performance

Recent 24 months of route data.

Period Flights Delayed Cancelled Diverted Carriers
Dec 2025 30 8 0 0 OO
Nov 2025 30 4 0 0 OO
Oct 2025 31 5 0 0 OO
Sep 2025 30 10 0 0 OO
Aug 2025 31 16 0 0 OO
Nov 2021 30 2 0 0 OO
Sep 2021 30 6 0 0 OO
Aug 2021 31 7 0 0 OO
Jul 2021 31 11 1 0 OO
Jun 2021 30 10 0 2 OO
May 2021 31 9 0 0 OO
Apr 2021 30 3 2 1 OO
Mar 2021 31 4 5 0 OO
Jan 2021 31 3 1 0 OO
Dec 2020 31 5 1 0 OO
Nov 2020 30 1 0 0 OO
Oct 2020 31 4 1 0 OO
Sep 2020 30 1 0 0 OO
Aug 2020 31 2 0 1 OO
Jul 2020 31 3 0 0 OO
Jun 2020 30 2 0 0 OO
May 2020 30 1 0 0 OO
Apr 2020 30 2 1 1 OO
Mar 2020 31 3 2 0 OO

Cancellation Rate

1.9%

14 of 732 flights

Diversion Rate

0.7%

5 of 732 flights

What the Data Says About ATY to DEN

Bureau of Transportation Statistics records show Watertown to Denver (ATY to DEN) running a 83.7% on-time rate over 763 tracked flights, on the stronger end of a typical domestic pairing. When flights do run late, the average delay is 128.3 minutes. The 519-mile corridor is served by 1 carrier, and over the last 24 months 1.9% of 732 flights were cancelled, 0.7% diverted.

Monthly performance data for this route did not show a clear best/worst split in the sample window; review the monthly table above for period-by-period detail.

Frequently Asked Questions

How often are flights delayed from ATY to DEN?
Flights from Watertown to Denver have a 83.7% on-time rate based on 763 flights. The average delay is 128.3 minutes.
What is the cancellation rate for ATY to DEN?
Over the last 24 months, 1.9% of flights on this route were cancelled (14 of 732 flights) and 0.7% were diverted.
How far is the flight from ATY to DEN?
The flight distance from Watertown (ATY) to Denver (DEN) is approximately 519 miles. This route is served by 1 carrier.

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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.

Data sourced from U.S. Department of Transportation Bureau of Transportation Statistics (BTS) On-Time Performance data. See our methodology for details. Retrieved and formatted by PlainFlights Editorial

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.