Route on-time record
CYS to DEN: most on-time flights and the best time to fly
Cheyenne (Cheyenne Regional Jerry Olson Field) to Denver (Denver International Airport). 740 nonstop flights in Jun 2025 to May 2026, 81% arrived within 15 minutes and 1.5% were cancelled. The most reliable flight number was SkyWest 5036 at 6:00 AM.
Flying on a specific date? We’ll adjust for the month, the weekday and the forecast.
CYS → DEN
Cheyenne to Denver: 740 nonstop flights a year
On time (12 months)
81%
Cancelled
1.5%
avg delay 18 min
Best time to leave
No clear winner
Most reliable airline
SkyWest
80% chance on time
Fares open on our travel partner (Aviasales). Pick the flight number you chose here.
Most reliable nonstop flights
Ranked by the chance the flight operates and arrives within 15 minutes of schedule, from Jun 2025 to May 2026 records.
#1 · SkyWest 5036 · sold as United Express, Delta Connection, American Eagle or Alaska
6:00 AM → 6:59 AM59m nonstop
Local times, typical schedule. Last flown 2026-05-31.
82%
chance on time
- On time (history)
- 83%
- Cancelled
- 0.8%
- Avg arrival delay
- 19 min
- Arrived on time 83% of the time (361 flights, Jun 2025 to May 2026).
Strong track record · 361 flights
Find 6:00 AM flight fares Opens this date on Aviasales#2 · SkyWest 5024 · sold as United Express, Delta Connection, American Eagle or Alaska
1:55 PM → 2:54 PM59m nonstop
Local times, typical schedule. Last flown 2026-05-31.
81%
chance on time
- On time (history)
- 83%
- Cancelled
- 1.9%
- Avg arrival delay
- 14 min
- Arrived on time 83% of the time (309 flights, Jun 2025 to May 2026).
- Lands inside DEN's trouble window: 79% of its 174 ground stops and delay programs started between 2 PM and 8 PM.
Strong track record · 309 flights
Find 1:55 PM flight fares Opens this date on Aviasales
Airlines on this route
Season-adjusted chance of operating and arriving on time.
- SkyWest Airlines (sold as United Express, Delta Connection, American Eagle or Alaska)80%
740 flights · 81% on time as flown · 1.5% cancel
On time by departure time
All airlines, scheduled local departure, Jun 2025 to May 2026.
- Before 9 AM83%
363 flights · avg delay 19 min
- Noon to 3 PM81%
363 flights · avg delay 15 min
Best day: Sunday (87%). Worst: Friday (80%).
On time by month
All airlines, Jun 2023 to May 2026. Several years per month, so one stormy season doesn't define a month. Travel-month estimates use this seasonal pattern.
What delays this route
- Late-arriving aircraft41%
- Airline (crew, maintenance, boarding)36%
- Air traffic control and airport volume12%
- Severe weather11%
Share of delay minutes by the cause airlines report to the US DOT.
Historical odds, not a guarantee. Built from the US DOT Bureau of Transportation Statistics on-time reports (Jun 2025 to May 2026), FAA ground stop and delay program advisories, and 20 years of airport weather observations. Covers US airlines that report to the DOT; schedules are flights operated recently, so confirm times when you book. ATIS Alerts is not affiliated with any airline. Fares are what Aviasales travelers saw in recent searches (USD, one way, 1 adult), not live quotes; the partner site shows the current price. Fare links go to our travel partner and may earn us a commission at no cost to you. Affiliate disclosure
CYS to DEN questions
- Which airline is most on time from CYS to DEN?
- SkyWest, with a season-adjusted 80% chance of operating and arriving on time over 740 flights. The adjustment compares each airline with what the route did in the months it flew, so a carrier that skipped a stormy month gets no free credit.
- What is the worst month for delays on CYS to DEN?
- February (76% on time); the best was September (92%), averaged over Jun 2023 to May 2026.
- Is this a prediction for my flight?
- No. These are historical odds from the US DOT on-time reports, FAA advisories and airport weather records. Check your flight status and the FAA delay board on the day you fly.
More routes from CYS
Live status: FAA delays and ground stops