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

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

76.2% of 1,103 official scheduled CID-to-DEN flights arrived on time; 16.1% arrived at least 30 minutes late and 1.3% 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
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

Which departure time was most reliable for CID to DEN?

Among qualifying CID-to-DEN departure window results, Early morning had the highest on-time rate: 82.6% of 293 flights. Evening was lowest at 68.8% across 285 flights.

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%

Which weekday was most reliable for CID to DEN?

Among qualifying CID-to-DEN weekday results, Friday had the highest on-time rate: 79.5% of 166 flights. Monday was lowest at 72.2% across 169 flights.

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%

Which airline was most reliable for CID to DEN?

Among qualifying CID-to-DEN airline results, United Airlines had the highest on-time rate: 77.6% of 727 flights. SkyWest Airlines was lowest at 72.0% across 207 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%

Which month was most reliable for CID to DEN?

Among qualifying CID-to-DEN month results, February 2026 had the highest on-time rate: 87.3% of 63 flights. July 2025 was lowest at 53.8% across 106 flights.

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 CID to DEN delay minutes?

Airline was the largest recorded CID-to-DEN delay category, accounting for 36.4% of 22,206 BTS-attributed delay minutes during July 2025–June 2026.

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.