Rapid City Regional in May 2025

75.8%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 May 2025, reporting carriers scheduled 549 domestic departures from Rapid City Regional (RAP). 75.8% left less than 15 minutes late and 74.1% reached their destination on time; 2.9% were cancelled.

Nationally that month, 76.7% of flights departed on time and 75.4% arrived on time, so RAP departures were 0.9 points below the national departure figure.

A year earlier, in May 2024, the airport had 381 departures with 82.2% leaving on time: a change of −6.4 points, with flights up 44%.

Flights arriving at RAP that month were on time 74.8% of the time (551 scheduled arrivals).

Of the delay minutes that carriers assigned to a BTS cause category that month, national aviation system 31%, air carrier 29% and late-arriving aircraft 27%.

On time 74.1%
Arrived 15+ minutes late 22.0%
Cancelled 2.9%
Diverted 0.9%

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

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

Measure	May 2025	May 2024	RAP, 12 months to Jul 2026	All reported flights, May 2025
Departed on time	75.8%	82.2%	81.3%	76.7%
Arrived on time	74.1%	81.4%	78.4%	75.4%
Cancelled	2.9%	0.8%	1.3%	1.0%
Average departure delay (late minutes only)	23.4 min	17.8 min	17.2 min	17.5 min
Scheduled departures a day	18	13	16	20,188
Scheduled departures	549	381	5,669	605,648

Airlines that month

Reporting carrier	Flights	Share	On time	Avg arrival delay	Cancelled
OO SkyWest Airlines	301	55%	72.8%	21.6 min	2.3%
MQ Envoy Air	116	21%	78.4%	9.1 min	4.3%
UA United Airlines	95	17%	73.7%	5.8 min	4.2%
G4 Allegiant Air	35	6%	71.4%	4.3 min	0.0%
DL Delta Air Lines	2	0%	100.0%	-16.0 min	0.0%

Busiest routes that month

Route	Cities	Flights	On time	Avg arrival delay	Cancelled
RAP–DEN	Rapid City to Denver	258	70.2%	18.3 min	3.9%
RAP–DFW	Rapid City to Dallas/Fort Worth	89	76.4%	8.5 min	5.6%
RAP–ORD	Rapid City to Chicago	88	81.8%	13.3 min	1.1%
RAP–MSP	Rapid City to Minneapolis	77	76.6%	18.9 min	0.0%
RAP–AZA	Rapid City to Phoenix	17	64.7%	14.1 min	0.0%
RAP–LAS	Rapid City to Las Vegas	9	77.8%	-5.1 min	0.0%
RAP–SFB	Rapid City to Sanford	9	77.8%	-4.6 min	0.0%
RAP–ATL	Rapid City to Atlanta	2	100.0%	-16.0 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), May 2025.

Delay causes

BTS cause category	Share of delay minutes	National, May 2025	Minutes
Air carrier	29.2%	29.3%	3,638
Late-arriving aircraft	27.4%	37.8%	3,419
National Aviation System	31.1%	25.9%	3,883
Extreme weather	12.3%	6.9%	1,529
Security	0.0%	0.1%	0

12,469 delay minutes on 121 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 May 2025?

75.8% of 549 scheduled domestic departures left less than 15 minutes late, and 74.1% reached their destination on time. The national figures that month were 76.7% and 75.4%.

How does that compare with a year earlier?

In May 2024, 82.2% of 381 departures left on time and 0.8% were cancelled, against 75.8% and 2.9% in May 2025.

Provenance

Source: Bureau of Transportation Statistics, Reporting Carrier On-Time Performance, file for May 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.