How often are flights delayed at CPR?

18% of departures from Casper-Natrona County International Airport left 15+ minutes late between 2024-06 and 2026-05, with an average departure delay of 17 minutes. The national on-time average over the same period was 78%.

What is the best time of day to depart from CPR?

Flights scheduled around 5 a.m. depart on time 93% of the time at CPR, versus 67% around 5 p.m.. Booking before noon is the usual rule of thumb here.

What is the worst month for delays at CPR?

In this dataset, June 2025 was the weakest month at CPR, with 67% of departures on time.

How often are flights cancelled at CPR?

1% of scheduled departures from CPR were cancelled in this period, compared with a national rate of 1.6%.

Casper-Natrona County International Airport (CPR): Delays & On-Time Performance

Data through May 2026

Casper-Natrona County International Airport (CPR) is a tale of two seasons: departures ran 94% on-time in November 2025 but sank to 67% in June 2025. Across the year it averages 83% against a national 78%, over roughly 7 departures a day to 2 destinations.

Departures on-time: 83%; left <15 min late
Avg dep delay: 17 min
Arrivals on-time: 78%
Cancelled: 1.0%
Destinations: 2; nonstop
Airlines: 1

Plan your departure from CPR

The choices most likely to improve your odds, based on this airport’s historical record.

Best departure time: Around 5 a.m.; 93% on-time
Best day to fly: Tuesday; 82% on-time
Nearest alternative: RIW — Riverton/Lander; 102 miles away
Cancellation risk: 1.0%; below the US average

Check routes from CPR ↓Compare nearby airports ↓

Monthly on-time trend

Best time of day to depart from CPR

By day of week

Day	On-time	Avg delay
Monday	81%	15 min
Tuesdaybest	82%	19 min
Wednesday	81%	14 min
Thursday	79%	20 min
Friday	77%	22 min
Saturday	78%	18 min
Sunday	79%	17 min

Next: compare the busiest routes from CPR ↓

Busiest routes from CPR

Route	Flights/12mo	On-time	Avg delay
CPR → DEN (Denver)	2,543	79%	18 min

Where flights into CPR come from

Route	Flights/12mo	On-time	Avg delay
DEN (Denver) → CPR	2,543	78%	18 min

What causes delays at CPR

Share of total delay minutes by cause, as reported by carriers to the US DOT, weighted across routes departing CPR.

Late-arriving aircraft26%
Airline operations42%
National airspace system20%
Weather13%

Alternative airports near Casper

Other airports within 120 miles, compared on departure reliability.

Airport	Distance	On-time departures	Avg delay
RIW — Central Wyoming Regional Airport	102 mi	87%	23 min
GCC — Northeast Wyoming Regional Airport	110 mi	84%	24 min
LAR — Laramie Regional Airport	117 mi	81%	23 min

Compare the airport-level record first, then check the exact route you plan to book.

Frequently asked questions

How often are flights delayed at CPR?: 18% of departures from Casper-Natrona County International Airport left 15+ minutes late between 2024-06 and 2026-05, with an average departure delay of 17 minutes. The national on-time average over the same period was 78%.
What is the best time of day to depart from CPR?: Flights scheduled around 5 a.m. depart on time 93% of the time at CPR, versus 67% around 5 p.m.. Booking before noon is the usual rule of thumb here.
What is the worst month for delays at CPR?: In this dataset, June 2025 was the weakest month at CPR, with 67% of departures on time.
How often are flights cancelled at CPR?: 1% of scheduled departures from CPR were cancelled in this period, compared with a national rate of 1.6%.

Popular route pages from this airport

How often is CPR to DEN on time?

Related guides

Based on 4,974 flights, 2024-06–2026-05. Source: US DOT Bureau of Transportation Statistics. Updated 2026-07-01.