BTS DATA COMPLETE THROUGH JUNE 2026HISTORICAL ODDS · NOT LIVE FLIGHT STATUS
DelayOddsKnow the route before you book
ATY→DEN

Watertown, SD (ATY) to Denver, CO (DEN) flight delay odds

75.3% of 332 official scheduled ATY-to-DEN flights arrived on time; 17.5% arrived at least 30 minutes late and 0.3% were cancelled during July 2025–June 2026.

Source: U.S. Bureau of Transportation Statistics · Reporting window: July 2025–June 2026 · Updated September 16, 2026

HISTORICAL ROUTE SIGNALGenerally reliable
75.3%arrived on time
17.5%30+ min late
0.3%cancelled
332scheduled flights
Based on July 2025–June 2026; on time means arrival less than 15 minutes late.
60+ minutes late8.1%all scheduled flights
120+ minutes late4.2%all scheduled flights
Diverted0.3%did not reach as scheduled
Average arrival+17.6 mincompleted flights

Which departure time was most reliable for ATY to DEN?

Only Evening met the ATY-to-DEN departure window threshold: 75.2% of 330 scheduled flights arrived on time during July 2025–June 2026.

Departure windowFlightsOn time30+ minCancelled
Evening33075.2%17.6%0.3%

Which weekday was most reliable for ATY to DEN?

Among qualifying ATY-to-DEN weekday results, Monday had the highest on-time rate: 85.4% of 48 flights. Thursday was lowest at 66.7% across 45 flights.

DayFlightsOn time30+ minCancelled
Monday4885.4%12.5%0.0%
Tuesday4881.2%8.3%0.0%
Wednesday4772.3%19.1%0.0%
Thursday4566.7%24.4%0.0%
Friday4868.8%25.0%2.1%
Saturday4875.0%18.8%0.0%
Sunday4877.1%14.6%0.0%

Which airline was most reliable for ATY to DEN?

Only SkyWest Airlines met the ATY-to-DEN airline threshold: 75.3% of 332 scheduled flights arrived on time during July 2025–June 2026.

AirlineFlightsOn time30+ minCancelled
SkyWest Airlines33275.3%17.5%0.3%

Which month was most reliable for ATY to DEN?

Among qualifying ATY-to-DEN month results, November 2025 had the highest on-time rate: 86.7% of 30 flights. August 2025 was lowest at 48.4% across 31 flights.

MonthFlightsOn time30+ minCancelled
August 20253148.4%45.2%0.0%
September 20253066.7%20.0%0.0%
October 20253183.9%16.1%0.0%
November 20253086.7%10.0%0.0%
December 20253073.3%20.0%0.0%
January 20263076.7%16.7%0.0%
February 20262871.4%14.3%0.0%
March 20263183.9%6.5%3.2%
April 20263086.7%10.0%0.0%
May 20263174.2%19.4%0.0%
June 20263076.7%13.3%0.0%

What drove ATY to DEN delay minutes?

Airline was the largest recorded ATY-to-DEN delay category, accounting for 46.1% of 8,280 BTS-attributed delay minutes during July 2025–June 2026.

Airline46.1%
Late aircraft20.1%
National airspace20.4%
Weather13.4%
Security0.0%
This is historical evidence, not a forecast.

Weather, schedules and operations change. For a trip you have already booked, use the airline or airport for live status.