DAY to DEN flight delays & on-time performance
Nonstop flights from James M. Cox Dayton International Airport to Denver International Airport · 1,085 miles · Aug 2025 – Jul 2026
No FAA-reported ground stops or delays at DAY or DEN right now. Individual flights can still be delayed by the airline; check with your airline for your flight.
Key facts
- Flights from Dayton (DAY) to Denver (DEN) arrived on time 91% of the time in Aug 2025 – Jul 2026, better than the 78% national average.
- 0.8% were cancelled, and 4% arrived an hour or more late.
- SkyWest Airlines was the most punctual airline here (93% on time); United Airlines was the least (91%).
- Departures scheduled around 9am did best (92% on time); around 8am did worst (90%).
- Tuesday was the most reliable day to fly (94% on time) and Monday the least (88%).
- The largest source of delay minutes was airline (crew, maintenance, cleaning, fueling) (72%).
Which airline is most on time from DAY 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 |
|---|---|---|---|---|---|
| SkyWest AirlinesRegional airline operating flights for United Express, Delta Connection, American Eagle and Alaska. | 93% | 3.5% | 7 min | 3.6% | 57 |
| United Airlines | 91% | 0.3% | 13 min | 3.6% | 308 |
Best time of day to fly
On-time arrival rate by scheduled departure hour (local time).
- 8am90%138 flights
- 9am92%227 flights
Best day of the week
On-time arrival rate by day of departure.
- Monday88%1.9% cancelled
- Tuesday94%0.0% cancelled
- Wednesday92%1.9% cancelled
- Thursday88%0.0% cancelled
- Friday92%0.0% cancelled
- Saturday90%0.0% cancelled
- Sunday92%1.9% cancelled
On-time trend by month
Why flights are late
Share of delay minutes by cause, as reported by airlines to the DOT.
- Airline (crew, maintenance, cleaning, fueling)72%
- Late-arriving aircraft19%
- Air traffic control & airport congestion7%
- Extreme weather2%
- Security0%
Why flights are cancelled
Share of cancellations by reason.
- Extreme weather67%
- Airline (crew, maintenance, cleaning, fueling)33%
- Air traffic control & airport congestion0%
- Security0%
DAY to DEN: common questions
- How often are DAY to DEN flights on time?
- 91% 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 Dayton to Denver cancelled?
- 0.8% of scheduled flights were cancelled (3 of 365).
- 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 126 min behind schedule on average, and 3.6% of flights were an hour or more late.
- How long is taxi time at DAY?
- Flights on this route spent 16 min taxiing from the gate to takeoff on average.
Related routes
Return trip: DEN to DAY — 73% on time
More flights from Dayton
Data: U.S. DOT Bureau of Transportation Statistics, Aug 2025 – Jul 2026 (12 months). Latest month published by BTS: July 2026. Route: DAY → DEN, nonstop flights by US airlines that report to the DOT. How we calculate this.