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

Cedar Rapids/Iowa City, IA (CID) to Denver, CO (DEN) flight delay odds

Historically, 76.2% of scheduled reportable flights on this direction arrived on time in July 2025–June 2026. The sample includes 1,103 flights.

HISTORICAL ROUTE SIGNALGenerally reliable
76.2%arrived on time
16.1%30+ min late
1.3%cancelled
1,103scheduled flights
Based on July 2025–June 2026; on time means arrival less than 15 minutes late.
60+ minutes late9.2%all scheduled flights
120+ minutes late4.0%all scheduled flights
Diverted0.4%did not reach as scheduled
Average arrival+13.0 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 morning29382.6%11.3%2.0%
Late morning11282.1%10.7%0.9%
Afternoon41375.3%16.5%1.2%
Evening28568.8%22.8%0.7%

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
Monday16972.2%17.2%1.8%
Tuesday14079.3%15.0%0.7%
Wednesday14276.1%16.2%0.7%
Thursday18074.4%16.1%1.1%
Friday16679.5%15.7%0.6%
Saturday12573.6%16.0%3.2%
Sunday18178.5%16.6%1.1%

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 Airlines72777.6%14.4%1.5%
SkyWest Airlines20772.0%20.3%0.5%
Frontier Airlines16975.7%18.3%1.2%

Monthly trend

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

MonthFlightsOn time30+ minCancelled
July 202510653.8%34.0%1.9%
August 202510266.7%22.5%2.0%
September 20259881.6%13.3%1.0%
October 202510283.3%11.8%0.0%
November 20259783.5%9.3%4.1%
December 20257564.0%28.0%2.7%
January 20266982.6%8.7%0.0%
February 20266387.3%11.1%0.0%
March 20268075.0%18.8%3.8%
April 20267784.4%10.4%0.0%
May 202610985.3%5.5%0.0%
June 202612573.6%17.6%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.

Airline36.4%
Late aircraft28.1%
National airspace25.0%
Weather10.5%
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.