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

Rapid City, SD (RAP) to Chicago, IL (ORD) flight delay odds

70.1% of 689 official scheduled RAP-to-ORD flights arrived on time; 19.2% arrived at least 30 minutes late and 1.7% 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
70.1%arrived on time
19.2%30+ min late
1.7%cancelled
689scheduled flights
Based on July 2025–June 2026; on time means arrival less than 15 minutes late.
60+ minutes late9.7%all scheduled flights
120+ minutes late4.2%all scheduled flights
Diverted0.9%did not reach as scheduled
Average arrival+16.5 mincompleted flights

Which departure time was most reliable for RAP to ORD?

Among qualifying RAP-to-ORD departure window results, Early morning had the highest on-time rate: 77.8% of 90 flights. Evening was lowest at 51.4% across 70 flights.

Departure windowFlightsOn time30+ minCancelled
Early morning9077.8%11.1%2.2%
Late morning11363.7%19.5%4.4%
Afternoon41673.3%18.5%0.7%
Evening7051.4%32.9%2.9%

Which weekday was most reliable for RAP to ORD?

Among qualifying RAP-to-ORD weekday results, Tuesday had the highest on-time rate: 78.4% of 97 flights. Sunday was lowest at 65.4% across 104 flights.

DayFlightsOn time30+ minCancelled
Monday10369.9%18.4%1.9%
Tuesday9778.4%13.4%3.1%
Wednesday9275.0%16.3%1.1%
Thursday10267.6%23.5%1.0%
Friday9965.7%23.2%1.0%
Saturday9269.6%15.2%4.3%
Sunday10465.4%23.1%0.0%

Which airline was most reliable for RAP to ORD?

Among qualifying RAP-to-ORD airline results, United Airlines had the highest on-time rate: 72.6% of 175 flights. Envoy Air was lowest at 68.7% across 268 flights.

AirlineFlightsOn time30+ minCancelled
Envoy Air26868.7%21.6%1.1%
SkyWest Airlines24669.9%17.5%2.4%
United Airlines17572.6%17.7%1.7%

Which month was most reliable for RAP to ORD?

Among qualifying RAP-to-ORD month results, September 2025 had the highest on-time rate: 82.4% of 74 flights. August 2025 was lowest at 58.7% across 109 flights.

MonthFlightsOn time30+ minCancelled
July 202512162.0%27.3%1.7%
August 202510958.7%25.7%1.8%
September 20257482.4%13.5%1.4%
October 20253881.6%7.9%0.0%
November 20253076.7%10.0%3.3%
December 20251580.0%13.3%0.0%
April 20267162.0%21.1%4.2%
May 202610476.0%13.5%1.9%
June 202612073.3%19.2%0.8%

What drove RAP to ORD delay minutes?

Airline was the largest recorded RAP-to-ORD delay category, accounting for 39.6% of 15,632 BTS-attributed delay minutes during July 2025–June 2026.

Airline39.6%
Late aircraft24.7%
National airspace27.2%
Weather8.5%
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.