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

Denver, CO (DEN) to Rapid City, SD (RAP) flight delay odds

Historically, 76.8% of scheduled reportable flights on this direction arrived on time in July 2025–June 2026. The sample includes 2,887 flights.

HISTORICAL ROUTE SIGNALGenerally reliable
76.8%arrived on time
14.9%30+ min late
1.1%cancelled
2,887scheduled flights
Based on July 2025–June 2026; on time means arrival less than 15 minutes late.
60+ minutes late8.0%all scheduled flights
120+ minutes late3.2%all scheduled flights
Diverted0.3%did not reach as scheduled
Average arrival+8.1 mincompleted flights

When is this route most reliable?

The same route can behave differently through the day. These are scheduled departure windows, not actual departure times. Small time windows with fewer than 40 flights are withheld.

Departure windowFlightsOn time30+ minCancelled
Early morning22087.3%6.4%2.3%
Late morning72282.4%9.3%0.7%
Afternoon86675.4%14.7%1.5%
Evening97672.1%20.4%0.9%
Night10370.9%21.4%1.0%

Weekday comparison

Day-of-week results use at least 30 scheduled flights per row. Look for broad patterns, not tiny percentage differences.

DayFlightsOn time30+ minCancelled
Monday42674.9%16.7%0.2%
Tuesday41882.3%12.4%0.2%
Wednesday40778.4%13.3%1.0%
Thursday42277.7%13.5%0.9%
Friday42173.4%18.8%2.9%
Saturday37473.0%15.5%1.1%
Sunday41977.6%13.8%1.7%

Airline comparison

Marketing-carrier results make codeshare flights easier to compare as travelers buy them. Dedicated route-airline reports require at least 160 flights.

AirlineFlightsOn time30+ minCancelled
SkyWest Airlines2,12577.1%14.4%1.4%
United Airlines76275.9%16.1%0.4%

Monthly trend

Month-by-month results show whether a twelve-month average hides an unusual period.

MonthFlightsOn time30+ minCancelled
July 202527465.3%22.6%1.8%
August 202527668.5%18.1%1.4%
September 202526285.5%10.3%0.0%
October 202526288.9%6.1%0.0%
November 202522287.8%5.0%2.7%
December 202521475.7%18.2%0.0%
January 202621776.5%13.8%2.3%
February 202619482.0%15.5%0.0%
March 202623072.6%18.3%3.5%
April 202622779.3%15.9%1.3%
May 202626074.2%15.0%0.8%
June 202624968.3%18.9%0.0%

What drove reported delay minutes?

BTS cause minutes are reported for qualifying delayed flights. These shares describe recorded delay minutes—not the chance that a particular cause will affect your next flight.

Airline37.2%
Late aircraft39.7%
National airspace16.5%
Weather6.6%
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.