Route · ATY → DEN · 2020–2025 BTS data
Watertown to Denver
According to PlainFlights' route traffic ranking (BTS On-Time Performance total flights), ATY to DEN (Watertown to Denver) ranks #4695 of 4927 tracked domestic routes by total flights (most flights = #1).
Data updated 2026-06-13
- 83.7%
- On-time
- +4.7 pts
- vs US avg
- 128 min
- Delay when late
- 763
- Flights
- #4695 of 4927
- Corpus placement
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 |
ATY–DEN seasonal on-time pattern
Best: November (92.2%) · weakest: August (73.1%)
Strongest calendar month
November
92.2% on-time · ~30 flights/mo
Busiest calendar month
January
~31 flights/mo avg
Weakest calendar month
August
73.1% on-time · ~31 flights/mo
Cancellation Rate
1.9%
14 of 732 flights
Diversion Rate
0.7%
5 of 732 flights
Explore origin & destination
On-time and delay data for the airports this route connects.
ATY - Watertown
Full on-time, delay-cause, and seasonal performance for Watertown, SD.
ATY on-time profileDEN - Denver
Full on-time, delay-cause, and seasonal performance for Denver, CO.
DEN on-time profileCompare the two airports
See ATY and DEN side by side on delays, cancellations, and reliability.
Compare ATY vs DENSimilar routes
Other BTS-tracked routes with comparable performance or trip length to ATY–DEN.
Routes with a similar on-time rate
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.
On the multi-year calendar, ATY–DEN peaks in November at 92.2% on-time while January carries the heaviest traffic (~31 flights per month) ; the softest month is August at 73.1%, a 19.1-point swing that repeats because the corridor's weather and holiday mix stays stable year to year.
Frequently Asked Questions
Where does ATY to DEN rank among US routes by traffic? ▼
How often are flights delayed from ATY to DEN? ▼
What is the cancellation rate for ATY to DEN? ▼
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Airports on this route
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.
Using ATY–DEN data
ATY–DEN runs 4.7 pts above the national 79% average; the remaining risk is month-to-month swing and carrier mix, not a weak headline rate.
- Compare ATY and DEN airport profiles: delay causes and top routes differ even on the same corridor. ATY airport
- If your dates flex, November (92.2% on-time) beats August (73.1%) on this corridor. Seasonal chart
- 4 other routes post a similar 83.7% on-time rate; compare before you commit to this pairing. Similar routes
On-time rate reflects the BTS historical average across all reporting carriers on this origin–destination pair, not any single flight or booking recommendation.
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.