DEN to CMH flight delays & on-time performance
Nonstop flights from Denver International Airport to John Glenn Columbus International Airport · 1,154 miles · Aug 2025 – Jul 2026
No FAA-reported ground stops or delays at DEN or CMH right now. Individual flights can still be delayed by the airline; check with your airline for your flight.
Key facts
- Flights from Denver (DEN) to Columbus (CMH) arrived on time 74% of the time in Aug 2025 – Jul 2026, worse than the 78% national average.
- 0.7% were cancelled, and 8% arrived an hour or more late.
- United Airlines was the most punctual airline here (83% on time); Southwest Airlines was the least (65%).
- Departures scheduled around 9am did best (90% on time); around 7pm did worst (45%).
- Tuesday was the most reliable day to fly (79% on time) and Wednesday the least (70%).
- The largest source of delay minutes was late-arriving aircraft (52%).
Which airline is most on time from DEN to CMH?
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 | 83% | 0.7% | 11 min | 5.4% | 728 |
| Frontier Airlines | 83% | 0.8% | 18 min | 6.6% | 122 |
| Southwest Airlines | 65% | 0.8% | 20 min | 10.5% | 919 |
Best time of day to fly
On-time arrival rate by scheduled departure hour (local time).
- 7am85%26 flights
- 8am93%27 flights
- 9am90%313 flights
- 10am77%268 flights
- 11am76%103 flights
- 12pm81%27 flights
- 1pm82%58 flights
- 2pm75%125 flights
- 3pm62%73 flights
- 4pm60%102 flights
- 5pm75%324 flights
- 6pm65%167 flights
- 7pm45%150 flights
Best day of the week
On-time arrival rate by day of departure.
- Monday75%0.0% cancelled
- Tuesday79%0.4% cancelled
- Wednesday70%0.0% cancelled
- Thursday72%0.0% cancelled
- Friday73%0.7% cancelled
- Saturday78%1.9% cancelled
- Sunday71%2.2% 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 aircraft52%
- Airline (crew, maintenance, cleaning, fueling)33%
- Air traffic control & airport congestion14%
- Extreme weather1%
- Security0%
Why flights are cancelled
Share of cancellations by reason.
- Extreme weather62%
- Airline (crew, maintenance, cleaning, fueling)23%
- Air traffic control & airport congestion15%
- Security0%
DEN to CMH: common questions
- How often are DEN to CMH flights on time?
- 74% 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 Denver to Columbus cancelled?
- 0.7% of scheduled flights were cancelled (13 of 1,769).
- How long are typical delays?
- Across all flights the average arrival delay was 16 min (early arrivals count as zero). Flights that were late arrived 57 min behind schedule on average, and 8.1% of flights were an hour or more late.
- How long is taxi time at DEN?
- Flights on this route spent 19 min taxiing from the gate to takeoff on average.
Related routes
Return trip: CMH to DEN — 80% on time
More flights from Denver
Data: U.S. DOT Bureau of Transportation Statistics, Aug 2025 – Jul 2026 (12 months). Latest month published by BTS: July 2026. Route: DEN → CMH, nonstop flights by US airlines that report to the DOT. How we calculate this.