Rapid City Regional in April 2026

83.4%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 2026, reporting carriers scheduled 465 domestic departures from Rapid City Regional (RAP). 83.4% left less than 15 minutes late and 75.3% reached their destination on time; 1.7% were cancelled.

Nationally that month, 79.1% of flights departed on time and 78.9% arrived on time, so RAP departures were 4.3 points above the national departure figure.

A year earlier, in April 2025, the airport had 363 departures with 78.8% leaving on time: a change of +4.6 points, with flights up 28%.

Flights arriving at RAP that month were on time 76.4% of the time (466 scheduled arrivals).

Of the delay minutes that carriers assigned to a BTS cause category that month, air carrier 56%, national aviation system 21% and late-arriving aircraft 18%.

On time 75.3%
Arrived 15+ minutes late 23.0%
Cancelled 1.7%
Diverted 0.0%

Every scheduled departure from RAP in April 2026, judged by arrival at the destination.

April 2026 against a year earlier, the airport's year and the nation

Measure	Apr 2026	Apr 2025	RAP, 12 months to Jul 2026	All reported flights, Apr 2026
Departed on time	83.4%	78.8%	81.3%	79.1%
Arrived on time	75.3%	74.1%	78.4%	78.9%
Cancelled	1.7%	0.6%	1.3%	0.9%
Average departure delay (late minutes only)	16.8 min	19.3 min	17.2 min	14.5 min
Scheduled departures a day	16	12	16	19,931
Scheduled departures	465	363	5,669	597,919

Airlines that month

Reporting carrier	Flights	Share	On time	Avg arrival delay	Cancelled
OO SkyWest Airlines	262	56%	76.0%	7.5 min	1.9%
MQ Envoy Air	108	23%	72.2%	15.9 min	0.9%
UA United Airlines	76	16%	80.3%	-2.3 min	2.6%
G4 Allegiant Air	19	4%	63.2%	16.2 min	0.0%

Busiest routes that month

Route	Cities	Flights	On time	Avg arrival delay	Cancelled
RAP–DEN	Rapid City to Denver	227	81.1%	-3.5 min	1.8%
RAP–DFW	Rapid City to Dallas/Fort Worth	84	71.4%	19.5 min	1.2%
RAP–ORD	Rapid City to Chicago	71	62.0%	25.3 min	4.2%
RAP–MSP	Rapid City to Minneapolis	64	78.1%	14.1 min	0.0%
RAP–AZA	Rapid City to Phoenix	10	70.0%	10.1 min	0.0%
RAP–LAS	Rapid City to Las Vegas	9	55.6%	23.0 min	0.0%

By scheduled departure hour

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

Share of departures that left less than 15 minutes late, by scheduled hour (local time), April 2026.

Delay causes

BTS cause category	Share of delay minutes	National, Apr 2026	Minutes
Air carrier	56.2%	33.5%	4,939
Late-arriving aircraft	18.1%	40.4%	1,587
National Aviation System	20.6%	21.0%	1,814
Extreme weather	5.1%	5.0%	450
Security	0.0%	0.1%	0

8,790 delay minutes on 107 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 2026?

83.4% of 465 scheduled domestic departures left less than 15 minutes late, and 75.3% reached their destination on time. The national figures that month were 79.1% and 78.9%.

How does that compare with a year earlier?

In April 2025, 78.8% of 363 departures left on time and 0.6% were cancelled, against 83.4% and 1.7% in April 2026.

Provenance

Source: Bureau of Transportation Statistics, Reporting Carrier On-Time Performance, file for April 2026; 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.