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

Denver, CO (DEN) to Nashville, TN (BNA) flight delay odds

Historically, 73.7% of scheduled reportable flights on this direction arrived on time in July 2025–June 2026. The sample includes 3,658 flights.

HISTORICAL ROUTE SIGNALGenerally reliable
73.7%arrived on time
16.1%30+ min late
0.7%cancelled
3,658scheduled flights
Based on July 2025–June 2026; on time means arrival less than 15 minutes late.
60+ minutes late7.9%all scheduled flights
120+ minutes late2.6%all scheduled flights
Diverted0.2%did not reach as scheduled
Average arrival+9.6 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 morning85193.3%2.1%0.8%
Late morning78980.2%10.1%0.5%
Afternoon1,00166.6%20.5%0.6%
Evening97759.6%28.0%0.8%
Night4047.5%32.5%0.0%

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
Monday57372.4%14.8%0.3%
Tuesday46073.0%16.7%0.4%
Wednesday48579.0%12.2%0.2%
Thursday56470.4%18.6%0.2%
Friday58273.4%17.9%0.5%
Saturday41378.2%13.1%1.2%
Sunday58171.3%18.2%1.9%

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
Southwest Airlines2,14271.8%17.3%0.8%
United Airlines1,16877.7%13.1%0.4%
Frontier Airlines34871.6%19.0%0.9%

Monthly trend

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

MonthFlightsOn time30+ minCancelled
July 202537057.6%27.6%1.1%
August 202533073.6%14.8%0.6%
September 202531577.5%12.4%0.0%
October 202532377.4%14.2%0.0%
November 202528879.9%14.6%0.0%
December 202527971.7%16.8%0.4%
January 202625680.9%7.0%5.5%
February 202625286.5%8.7%0.0%
March 202630774.3%16.3%0.7%
April 202628479.9%13.7%0.4%
May 202631469.7%18.2%0.0%
June 202634063.5%23.2%0.3%

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.

Airline26.8%
Late aircraft50.6%
National airspace20.4%
Weather2.1%
Security0.1%
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.