CLE to DEN flight delays & on-time performance
Nonstop flights from Cleveland Hopkins International Airport to Denver International Airport · 1,201 miles · Aug 2025 – Jul 2026
No FAA-reported ground stops or delays at CLE or DEN right now. Individual flights can still be delayed by the airline; check with your airline for your flight.
Key facts
- Flights from Cleveland (CLE) to Denver (DEN) arrived on time 82% of the time in Aug 2025 – Jul 2026, better than the 78% national average.
- 0.5% were cancelled, and 6% arrived an hour or more late.
- United Airlines was the most punctual airline here (87% on time); Frontier Airlines was the least (75%).
- Departures scheduled around 5am did best (96% on time); around 6pm did worst (51%).
- Saturday was the most reliable day to fly (86% on time) and Thursday the least (80%).
- The largest source of delay minutes was late-arriving aircraft (40%).
Which airline is most on time from CLE to DEN?
Ranked by on-time arrival rate. Regional airlines fly under their partner's brand (e.g. SkyWest for Delta Connection or United Express).
| Airline | On time | Cancelled | Avg delay | 1 hr+ late | Flights |
|---|---|---|---|---|---|
| United Airlines | 87% | 0.1% | 10 min | 4.3% | 941 |
| Southwest Airlines | 78% | 0.5% | 14 min | 6.4% | 604 |
| Frontier Airlines | 75% | 2.0% | 15 min | 8.0% | 294 |
Best time of day to fly
On-time arrival rate by scheduled departure hour (local time).
- 5am96%128 flights
- 6am96%123 flights
- 7am95%40 flights
- 8am91%311 flights
- 9am91%53 flights
- 10am89%99 flights
- 11am87%134 flights
- 12pm90%136 flights
- 1pm83%29 flights
- 2pm88%24 flights
- 4pm81%353 flights
- 5pm65%138 flights
- 6pm51%147 flights
- 7pm72%37 flights
- 8pm58%67 flights
Best day of the week
On-time arrival rate by day of departure.
- Monday80%0.4% cancelled
- Tuesday85%0.0% cancelled
- Wednesday82%0.4% cancelled
- Thursday80%0.0% cancelled
- Friday82%1.4% cancelled
- Saturday86%0.5% cancelled
- Sunday83%1.1% cancelled
On-time trend by month
Why flights are late
Share of delay minutes by cause, as reported by airlines to the DOT.
- Late-arriving aircraft40%
- Air traffic control & airport congestion33%
- Airline (crew, maintenance, cleaning, fueling)24%
- Extreme weather3%
- Security0%
Why flights are cancelled
Share of cancellations by reason.
- Airline (crew, maintenance, cleaning, fueling)80%
- Extreme weather20%
- Air traffic control & airport congestion0%
- Security0%
CLE to DEN: common questions
- How often are CLE to DEN flights on time?
- 82% of flights arrived less than 15 minutes late in Aug 2025 – Jul 2026, compared with 78% for all US flights.
- How often are flights from Cleveland to Denver cancelled?
- 0.5% of scheduled flights were cancelled (10 of 1,839).
- How long are typical delays?
- Across all flights the average arrival delay was 12 min (early arrivals count as zero). Flights that were late arrived 62 min behind schedule on average, and 5.5% of flights were an hour or more late.
- How long is taxi time at CLE?
- Flights on this route spent 15 min taxiing from the gate to takeoff on average.
Related routes
Return trip: DEN to CLE — 76% on time
More flights from Cleveland
Data: U.S. DOT Bureau of Transportation Statistics, Aug 2025 – Jul 2026 (12 months). Latest month published by BTS: July 2026. Route: CLE → DEN, nonstop flights by US airlines that report to the DOT. How we calculate this.