Rapid City Regional in April 2025

78.8%departed on time

BTS: A flight is counted as on time if it arrived less than 15 minutes after its scheduled time. Only carriers with at least 0.5 percent of domestic scheduled passenger revenue report.

In April 2025, reporting carriers scheduled 363 domestic departures from Rapid City Regional (RAP). 78.8% left less than 15 minutes late and 74.1% reached their destination on time; 0.6% were cancelled.

Nationally that month, 80.6% of flights departed on time and 79.5% arrived on time, so RAP departures were 1.8 points below the national departure figure.

A year earlier, in April 2024, the airport had 312 departures with 86.2% leaving on time: a change of −7.4 points, with flights up 16%.

Flights arriving at RAP that month were on time 78.2% of the time (363 scheduled arrivals).

Of the delay minutes that carriers assigned to a BTS cause category that month, late-arriving aircraft 35%, national aviation system 34% and air carrier 24%.

On time 74.1%
Arrived 15+ minutes late 25.1%
Cancelled 0.6%
Diverted 0.3%

Every scheduled departure from RAP in April 2025, judged by arrival at the destination.

April 2025 against a year earlier, the airport's year and the nation

Measure	Apr 2025	Apr 2024	RAP, 12 months to Jul 2026	All reported flights, Apr 2025
Departed on time	78.8%	86.2%	81.3%	80.6%
Arrived on time	74.1%	80.1%	78.4%	79.5%
Cancelled	0.6%	0.0%	1.3%	0.8%
Average departure delay (late minutes only)	19.3 min	11.1 min	17.2 min	14.1 min
Scheduled departures a day	12	10	16	19,465
Scheduled departures	363	312	5,669	583,950

Airlines that month

Reporting carrier	Flights	Share	On time	Avg arrival delay	Cancelled
OO SkyWest Airlines	212	58%	74.5%	11.4 min	0.5%
MQ Envoy Air	60	17%	66.7%	13.4 min	1.7%
G4 Allegiant Air	31	9%	87.1%	4.9 min	0.0%
UA United Airlines	30	8%	56.7%	19.8 min	0.0%
YX Republic Airline	30	8%	90.0%	-12.6 min	0.0%

Busiest routes that month

Route	Cities	Flights	On time	Avg arrival delay	Cancelled
RAP–DEN	Rapid City to Denver	240	72.1%	12.7 min	0.4%
RAP–DFW	Rapid City to Dallas/Fort Worth	60	66.7%	13.4 min	1.7%
RAP–ORD	Rapid City to Chicago	30	90.0%	-12.6 min	0.0%
RAP–AZA	Rapid City to Phoenix	14	92.9%	-1.6 min	0.0%
RAP–SFB	Rapid City to Sanford	9	88.9%	-9.0 min	0.0%
RAP–LAS	Rapid City to Las Vegas	8	75.0%	31.8 min	0.0%
RAP–MSP	Rapid City to Minneapolis	2	100.0%	-13.0 min	0.0%

By scheduled departure hour

100

On-time share:under 62%6270768288% and over

Share of departures that left less than 15 minutes late, by scheduled hour (local time), April 2025.

Delay causes

BTS cause category	Share of delay minutes	National, Apr 2025	Minutes
Air carrier	24.3%	32.7%	1,834
Late-arriving aircraft	34.9%	39.4%	2,641
National Aviation System	33.8%	22.2%	2,556
Extreme weather	7.0%	5.5%	531
Security	0.0%	0.2%	0

7,562 delay minutes on 91 flights that arrived 15 or more minutes late and carried a cause report. Carriers assign the categories; see what each category means.

Questions and answers

How many flights left RAP on time in April 2025?

78.8% of 363 scheduled domestic departures left less than 15 minutes late, and 74.1% reached their destination on time. The national figures that month were 80.6% and 79.5%.

How does that compare with a year earlier?

In April 2024, 86.2% of 312 departures left on time and 0.0% were cancelled, against 78.8% and 0.6% in April 2025.

Provenance

Source: Bureau of Transportation Statistics, Reporting Carrier On-Time Performance, file for April 2025; public domain. Domestic scheduled flights by reporting carriers, totals and averages only. The site's data runs through July 2026. Full record for RAP · methodology · corrections.