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Route · DEN → RAP · 2020–2025 BTS data

Denver to Rapid City

According to PlainFlights' route traffic ranking (BTS On-Time Performance total flights), DEN to RAP (Denver to Rapid City) ranks #1112 of 4927 tracked domestic routes by total flights (most flights = #1).

Data updated 2026-06-13

79.2%
On-time
+0.2 pts
vs US avg
76 min
Delay when late
10,350
Flights
#1112 of 4927
Corpus placement

Cancelled

1.4%

Best Month

Nov 2025 91%

Worst Month

Jun 2025 66%

Distance

300 mi

Carriers

6

Monthly Performance

Recent 24 months of route data.

Period Flights Delayed Cancelled Diverted Carriers
Dec 2025 214 51 0 1 UA,OO
Nov 2025 222 20 6 1 OO,UA
Oct 2025 262 29 0 0 OO,UA
Sep 2025 262 38 0 0 UA,OO
Aug 2025 276 82 4 1 OO,UA
Jul 2025 274 89 5 1 OO,UA
Jun 2025 270 93 2 0 OO,UA
May 2025 258 70 6 4 OO,UA
Apr 2025 240 58 0 2 OO,UA
Mar 2025 240 45 1 3 OO,UA
Feb 2025 200 53 17 0 OO,UA
Jan 2025 202 65 0 0 OO,UA
Dec 2024 201 26 0 0 OO,UA
Nov 2024 206 44 4 1 OO,UA
Oct 2024 217 22 0 0 UA,OO
Sep 2024 210 35 0 0 OO,UA
Aug 2024 218 62 0 0 OO,UA
Jul 2024 215 69 6 1 OO,UA
Jun 2024 210 63 6 3 OO,UA
May 2024 145 42 0 0 OO,UA
Apr 2024 111 18 0 2 OO,UA
Mar 2024 120 16 3 0 OO,UA
Feb 2024 133 23 8 0 OO,UA
Jan 2024 119 21 3 0 OO,UA

DEN–RAP seasonal on-time pattern

Best: November (86.2%) · weakest: July (69.8%)

65%70%75%80%85%90% JanFebMarAprMayJunJulAugSepOctNovDec 80.7%

Strongest calendar month

November

86.2% on-time · ~140 flights/mo

Busiest calendar month

September

~167 flights/mo avg

Weakest calendar month

July

69.8% on-time · ~156 flights/mo

Cancellation Rate

1.4%

71 of 5,025 flights

Diversion Rate

0.4%

20 of 5,025 flights

Explore origin & destination

On-time and delay data for the airports this route connects.

DEN - Denver

Full on-time, delay-cause, and seasonal performance for Denver, CO.

DEN on-time profile

RAP - Rapid City

Full on-time, delay-cause, and seasonal performance for Rapid City, SD.

RAP on-time profile

Compare the two airports

See DEN and RAP side by side on delays, cancellations, and reliability.

Compare DEN vs RAP

Origin-hub reliability standing

Mid-pack among DEN departures

From DEN, this corridor sits with 133 other 75–85% on-time routes out of 168 tracked departures, not the hub's reliability leaders (8 at ≥85%) and not the softest ( 27 below 75%). Destination: Rapid City · fleet on-time rank #3439 of 4927.

What the Data Says About DEN to RAP

10,350 tracked flights put the DEN to RAP pairing (Denver to Rapid City) at a 79.2% on-time rate, squarely in line with the wider network. Delays that do occur run 76.0 minutes on average. Across the 300-mile route and its 6 carriers, the trailing 24 months show 1.4% cancelled and 0.4% diverted (5,025 flights sampled).

The monthly split is wide on this route: Nov 2025 posted the strongest performance at 91% on-time, while Jun 2025 came in at just 66% - a 25-point swing worth factoring into travel timing.

On the multi-year calendar, DEN–RAP peaks in November at 86.2% on-time while September carries the heaviest traffic (~167 flights per month) ; the softest month is July at 69.8%, a 16.4-point swing that repeats because the corridor's weather and holiday mix stays stable year to year.

Frequently Asked Questions

Where does DEN to RAP rank among US routes by traffic? ▼
According to PlainFlights' route traffic ranking, DEN to RAP ranks #1112 of 4927 tracked domestic routes by total flights (most flights = #1). That ordinal matches our busiest-routes listing (total_flights DESC). See /methodology#corpus-placement for the exact sort basis.
How often are flights delayed from DEN to RAP? ▼
Flights from Denver to Rapid City have a 79.2% on-time rate based on 10,350 flights. The average delay is 76.0 minutes. The best recent month was Nov 2025 with 91% on-time.
What is the cancellation rate for DEN to RAP? ▼
Over the last 24 months, 1.4% of flights on this route were cancelled (71 of 5,025 flights) and 0.4% were diverted.
How far is the flight from DEN to RAP? ▼
The flight distance from Denver (DEN) to Rapid City (RAP) is approximately 300 miles. This route is served by 6 carriers.
When is the best time to fly from DEN to RAP? ▼
The best recent month for on-time performance was Nov 2025 (91% on-time). The worst was Jun 2025 (66% on-time). Consider booking during months with historically better performance.

Airports on this route

DEN Airport

Denver
RAP Airport

Rapid City
Data source

Data Source: Bureau of Transportation Statistics (BTS), On-Time Performance Data. Statistics reflect cumulative performance across all available reporting periods.

Read our methodology - how this data is sourced, computed, and verified.

Using DEN–RAP data

DEN–RAP is mid-pack at 79.2% on-time; month and carrier mix move more than the corridor headline.

  • Compare DEN and RAP airport profiles: delay causes and top routes differ even on the same corridor. DEN airport
  • If your dates flex, November (86.2% on-time) beats July (69.8%) on this corridor. Seasonal chart
  • 4 other routes post a similar 79.2% on-time rate; compare before you commit to this pairing. Similar routes

On-time rate reflects the BTS historical average across all reporting carriers on this origin–destination pair, not any single flight or booking recommendation.

Data sourced from U.S. Department of Transportation Bureau of Transportation Statistics (BTS) On-Time Performance data. See our methodology for details. Retrieved and formatted by PlainFlights

Every figure on PlainFlights is rendered directly from BTS On-Time Performance data, no number is typed in by an editor. This page aggregates this specific route's on-time performance and monthly trend, live from the dataset. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error.