RAP to ORD flight delays
Rapid City, SD (RAP) Chicago, IL (ORD) · 780 miles
689 flights · January 2025 – August 2026 · US Bureau of Transportation Statistics
71.98%
Arrived on time
Within 15 minutes of schedule
1.74%
Cancelled
Share of scheduled flights
83 min
When late, late by
Average across delayed arrivals
24 min
Delay per flight
Averaged over every flight flown
What the record says about this route
The season swings this route hard. In September it ran 22.1 points more punctual than in August — a difference bigger than the one between the best and worst airlines on most routes. If the date is flexible, it is worth more than the carrier.
This route does worse than its own airport. RAP as a whole runs 10.1 points more punctual than these flights, which points at something specific to the route — the time of day it is scheduled, or the aircraft that feed it — rather than the airport.
Flights from Rapid City to Chicago run late more often than the average route, though not severely.
The 3 airlines here are separated by under 6 points — close enough to call a tie. Choose on price and departure time.
Which airline should you fly on this route?
Over January 2025 – August 2026, United Airlines arrived on time most often on RAP to ORD. Envoy Air was late most often. Flights ran closest to schedule in January and worst in March.
Every airline on RAP to ORD
Ranked by how many flights each one operated. A carrier with fewer than 100 flights in the period is listed but not graded.
| Airline | Flights | On time | Cancelled | Avg delay | Grade |
|---|---|---|---|---|---|
| Envoy Air | 268 | 69.96% | 1.12% | 79 min | D |
| SkyWest Airlines | 246 | 71.97% | 2.44% | 81 min | D |
| United Airlines | 175 | 75.15% | 1.71% | 94 min | D |
Month by month
Share of flights that arrived within 15 minutes of schedule, by month flown.
The return leg
ORD to RAP Chicago back to Rapid City 76.27% on time DCommon questions
Are flights from Rapid City to Chicago usually delayed?
71.98% of flights on the RAP to ORD route arrived within 15 minutes of schedule, so roughly 3 in every ten arrived late. That is worse than the average route in this record.
Which airline is most on time from Rapid City to Chicago?
United Airlines, at 75.15% on time across 175 flights. The least punctual on the route was Envoy Air at 69.96%.
How often are RAP to ORD flights cancelled?
1.74% of scheduled flights did not operate — about 17 in every thousand. That is in the normal range.
What is the best month to fly Rapid City to Chicago?
September, when 83.6% of flights arrived on time. The worst was August at 61.5%.
When RAP to ORD flights are late, how late are they?
About 83 minutes on average across the flights that arrived more than 15 minutes behind schedule.
What these figures do and do not tell you
Everything on this page is counted from the flights that actually operated on RAP to ORD during January 2025 – August 2026, as reported by the airlines to the US Bureau of Transportation Statistics. "On time" is the federal definition: arriving at the gate within 15 minutes of the scheduled time.
A route's record is a description of the past, not a forecast. Weather, air traffic control and the aircraft's earlier flights that day drive most delays, and none of them are predictable from a historical rate. What the record does tell you is whether this route runs late more often than others, and which carrier on it has the better history — which is the part you can actually act on when you book.
Cancellations are counted separately from delays because they are a different problem for a traveller: a late flight still gets you there. How the grade is calculated →