Casper/Natrona County International in July 2026

77.1%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 July 2026, reporting carriers scheduled 240 domestic departures from Casper/Natrona County International (CPR). 77.1% left less than 15 minutes late and 81.3% reached their destination on time; 0.0% were cancelled.

Nationally that month, 68.8% of flights departed on time and 69.4% arrived on time, so CPR departures were 8.3 points above the national departure figure.

A year earlier, in July 2025, the airport had 210 departures with 72.9% leaving on time: a change of +4.2 points, with flights up 14%.

Flights arriving at CPR that month were on time 72.1% of the time (240 scheduled arrivals).

Of the delay minutes that carriers assigned to a BTS cause category that month, late-arriving aircraft 47%, air carrier 33% and national aviation system 11%.

On time 81.3%
Arrived 15+ minutes late 18.8%
Cancelled 0.0%
Diverted 0.0%

Every scheduled departure from CPR in July 2026, judged by arrival at the destination.

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

Measure	Jul 2026	Jul 2025	CPR, 12 months to Jul 2026	All reported flights, Jul 2026
Departed on time	77.1%	72.9%	83.2%	68.8%
Arrived on time	81.3%	66.2%	82.1%	69.4%
Cancelled	0.0%	1.9%	0.8%	2.6%
Average departure delay (late minutes only)	25.1 min	24.3 min	16.7 min	24.1 min
Scheduled departures a day	8	7	7	21,066
Scheduled departures	240	210	2,600	631,970

Airlines that month

Reporting carrier	Flights	Share	On time	Avg arrival delay	Cancelled
OO SkyWest Airlines	240	100%	81.3%	8.9 min	0.0%

Busiest routes that month

Route	Cities	Flights	On time	Avg arrival delay	Cancelled
CPR–DEN	Casper to Denver	240	81.3%	8.9 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), July 2026.

Delay causes

BTS cause category	Share of delay minutes	National, Jul 2026	Minutes
Air carrier	33.4%	31.7%	1,749
Late-arriving aircraft	47.1%	41.8%	2,468
National Aviation System	10.5%	19.9%	549
Extreme weather	9.1%	6.5%	476
Security	0.0%	0.1%	0

5,242 delay minutes on 45 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 CPR on time in July 2026?

77.1% of 240 scheduled domestic departures left less than 15 minutes late, and 81.3% reached their destination on time. The national figures that month were 68.8% and 69.4%.

How does that compare with a year earlier?

In July 2025, 72.9% of 210 departures left on time and 1.9% were cancelled, against 77.1% and 0.0% in July 2026.

Provenance

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