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

Memphis, TN (MEM) to Denver, CO (DEN) flight delay odds

Historically, 77.9% of scheduled reportable flights on this direction arrived on time in July 2025–June 2026. The sample includes 1,333 flights.

HISTORICAL ROUTE SIGNALGenerally reliable
77.9%arrived on time
13.1%30+ min late
0.9%cancelled
1,333scheduled flights
Based on July 2025–June 2026; on time means arrival less than 15 minutes late.
60+ minutes late7.2%all scheduled flights
120+ minutes late3.2%all scheduled flights
Diverted0.3%did not reach as scheduled
Average arrival+8.3 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 morning53587.1%6.9%0.9%
Late morning15981.8%8.2%1.3%
Afternoon41873.0%17.0%1.2%
Evening22162.0%24.4%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
Monday20378.8%12.8%1.0%
Tuesday17879.2%11.2%0.6%
Wednesday17880.3%12.4%0.6%
Thursday21275.5%17.0%0.0%
Friday19077.9%11.6%0.5%
Saturday15777.1%14.0%1.9%
Sunday21576.7%12.6%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
United Airlines72880.1%12.4%1.1%
Southwest Airlines46575.5%12.7%0.6%
Frontier Airlines13974.1%18.7%0.7%
SkyWest Airlines1100.0%0.0%0.0%

Monthly trend

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

MonthFlightsOn time30+ minCancelled
July 202510268.6%21.6%0.0%
August 202510371.8%17.5%1.0%
September 202510277.5%13.7%0.0%
October 202510579.0%7.6%0.0%
November 202510293.1%2.9%1.0%
December 202510676.4%13.2%0.0%
January 202610581.0%5.7%7.6%
February 20269786.6%10.3%1.0%
March 202612976.0%17.8%0.0%
April 202612584.0%9.6%0.0%
May 202612979.8%11.6%0.8%
June 202612863.3%23.4%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.

Airline29.8%
Late aircraft31.4%
National airspace31.2%
Weather7.6%
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.