Airport Reliability
CYS · Cheyenne
Cheyenne, WY (CYS)
- 84%
- Departures within 15 minutes
- 10 min
- Average departure delay
- 76%
- Arrivals within 15 minutes
- 1.5%
- Departures cancelled
Based on 740 departures and 740 arrivals. Data through May 2026.
What the data says
Morning-you made the right choice.
Departures from CYS departing between 3–6 AM arrived on time 100% of the time, versus 50% between 3–6 PM.
Friday is doing you no favors.
Departures from CYS arrived on time 89% of the time on Tuesdays. On Fridays: 77%.
When CYS gets messy
- 3–6 AM100%(11 flights)
- 6–9 AM83%(349 flights)
- 9 AM–12 PM—(4 flights)
- 12–3 PM81%(353 flights)
- 3–6 PM50%(10 flights)
- Mon81%(106 flights)
- Tue89%(103 flights)
- Wed78%(104 flights)
- Thu81%(101 flights)
- Fri77%(102 flights)
- Sat80%(103 flights)
- Sun87%(108 flights)
85%
May
Jun 76% → May 85% on time
| Month | On-time percentage | Flights |
|---|---|---|
| June 2025 | 76% | 59 |
| July 2025 | 66% | 70 |
| August 2025 | 80% | 60 |
| September 2025 | 95% | 60 |
| October 2025 | 79% | 62 |
| November 2025 | 95% | 59 |
| December 2025 | 79% | 63 |
| January 2026 | 85% | 61 |
| February 2026 | 82% | 54 |
| March 2026 | 81% | 59 |
| April 2026 | 82% | 60 |
| May 2026 | 85% | 60 |
Airlines departing CYS
Busiest routes from CYS
Based on 740 historical flights, because apparently we checked. Historical flight data: U.S. Bureau of Transportation Statistics, June 2025 – May 2026. Data through May 2026. How we calculate this.