Route · DEN → ATY · 2020–2025 BTS data
Denver to Watertown
According to PlainFlights' route traffic ranking (BTS On-Time Performance total flights), DEN to ATY (Denver to Watertown) ranks #4696 of 4927 tracked domestic routes by total flights (most flights = #1).
Data updated 2026-06-13
- 88.5%
- On-time
- +9.5 pts
- vs US avg
- 77 min
- Delay when late
- 763
- Flights
- #4696 of 4927
- Corpus placement
Cancelled
1.4%
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 | 5 | 0 | 0 | OO |
| Nov 2025 | 30 | 1 | 0 | 0 | OO |
| Oct 2025 | 31 | 3 | 0 | 0 | OO |
| Sep 2025 | 30 | 6 | 0 | 0 | OO |
| Aug 2025 | 31 | 10 | 0 | 0 | OO |
| Nov 2021 | 30 | 2 | 0 | 0 | OO |
| Sep 2021 | 30 | 2 | 0 | 0 | OO |
| Aug 2021 | 31 | 5 | 0 | 0 | OO |
| Jul 2021 | 31 | 5 | 1 | 0 | OO |
| Jun 2021 | 30 | 7 | 0 | 0 | OO |
| May 2021 | 31 | 4 | 0 | 0 | OO |
| Apr 2021 | 30 | 4 | 0 | 0 | OO |
| Mar 2021 | 31 | 4 | 3 | 0 | OO |
| Jan 2021 | 31 | 3 | 0 | 0 | OO |
| Dec 2020 | 31 | 2 | 2 | 1 | OO |
| Nov 2020 | 30 | 2 | 0 | 0 | OO |
| Oct 2020 | 31 | 4 | 0 | 0 | OO |
| Sep 2020 | 30 | 4 | 0 | 0 | OO |
| Aug 2020 | 31 | 2 | 0 | 0 | OO |
| Jul 2020 | 30 | 6 | 0 | 0 | OO |
| Jun 2020 | 30 | 2 | 0 | 0 | OO |
| May 2020 | 31 | 0 | 0 | 0 | OO |
| Apr 2020 | 30 | 1 | 1 | 1 | OO |
| Mar 2020 | 31 | 3 | 3 | 0 | OO |
DEN–ATY seasonal on-time pattern
Best: November (94.4%) · weakest: August (81.7%)
Strongest calendar month
November
94.4% on-time · ~30 flights/mo
Busiest calendar month
January
~31 flights/mo avg
Weakest calendar month
August
81.7% on-time · ~31 flights/mo
Cancellation Rate
1.4%
10 of 732 flights
Diversion Rate
0.3%
2 of 732 flights
Explore origin & destination
On-time and delay data for the airports this route connects.
DEN - Denver
Full on-time, delay-cause, and seasonal performance for Denver, CO.
DEN on-time profileATY - Watertown
Full on-time, delay-cause, and seasonal performance for Watertown, SD.
ATY on-time profileCompare the two airports
See DEN and ATY side by side on delays, cancellations, and reliability.
Compare DEN vs ATYOrigin-hub reliability standing
Among DEN's stronger departures
DEN → ATY posts a 88.5% on-time rate, landing in the ≥85% band with 8 of 168 BTS-tracked routes leaving Denver. The same hub also shows 133 mid-band and 27 challenged departures · fleet-wide on-time rank #328 of 4927 (highest on-time = #1).
Similar routes
Other BTS-tracked routes with comparable performance or trip length to DEN–ATY.
Routes with a similar on-time rate
What the Data Says About DEN to ATY
Denver to Watertown (DEN to ATY) is one of the more dependable pairings in the BTS On-Time Performance dataset: a 88.5% on-time rate across 763 flights, with delays that do happen averaging 76.9 minutes. The corridor runs roughly 519 miles and is served by 1 carrier. Over the most recent 24 months, 10 of 732 flights were cancelled (1.4%) and 2 diverted (0.3%).
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, DEN–ATY peaks in November at 94.4% on-time while January carries the heaviest traffic (~31 flights per month) ; the softest month is August at 81.7%, a 12.7-point swing that repeats because the corridor's weather and holiday mix stays stable year to year.
Frequently Asked Questions
Where does DEN to ATY rank among US routes by traffic? ▼
How often are flights delayed from DEN to ATY? ▼
What is the cancellation rate for DEN to ATY? ▼
How far is the flight from DEN to ATY? ▼
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 DEN–ATY data
DEN–ATY runs 9.5 pts above the national 79% average; the remaining risk is month-to-month swing and carrier mix, not a weak headline rate.
- Compare DEN and ATY airport profiles: delay causes and top routes differ even on the same corridor. DEN airport
- If your dates flex, November (94.4% on-time) beats August (81.7%) on this corridor. Seasonal chart
- 4 other routes post a similar 88.5% 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.