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Route on-time record

DEN to DAY: most on-time flights and the best time to fly

Denver (Denver International Airport) to Dayton (James M. Cox Dayton International Airport). 365 nonstop flights in Jun 2025 to May 2026, 72% arrived within 15 minutes and 0.5% were cancelled. The most reliable flight number was United 1134 at 6:06 PM.

Flying on a specific date? We’ll adjust for the month, the weekday and the forecast.

Find me the most reliable flights fromtoonreturning(optional)

DEN → DAY

Denver to Dayton: 365 nonstop flights a year

On time (12 months)

72%

Cancelled

0.5%

avg delay 18 min

Best time to leave

3 to 6 PM

74% on time vs 56% 6 to 9 PM

Most reliable airline

United

70% chance on time

Check DEN to DAY fares

Lowest nonstop fare seen in the next two months: $297 (United 2107 on 2026-10-27). 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. #1 · United 1134

    6:06 PM → 10:55 PM2h 49m nonstop

    Local times, typical schedule. Last flown 2026-05-31. Same departure also flew as United 2200; its record covers all of them.

    64%

    chance on time

    On time (history)
    56%
    Cancelled
    0.0%
    Avg arrival delay
    27 min
    • Arrived on time 56% of the time (32 flights, Jun 2025 to May 2026).
    • Never cancelled in 32 scheduled flights.
    • Leaves in this route's least on-time window (6 to 9 PM: 56% on time; 3 to 6 PM: 74%).
    • Departs inside DEN's trouble window: 79% of its 174 ground stops and delay programs started between 2 PM and 8 PM.

    Limited track record · 32 flights

    Find United 1134 fares Opens this date on Aviasales

Airlines on this route

Season-adjusted chance of operating and arriving on time.

  • United Airlines70%

    283 flights · 70% on time as flown · 0.2% cancel

On time by departure time

All airlines, scheduled local departure, Jun 2025 to May 2026.

  • 3 to 6 PM74%

    332 flights · avg delay 18 min

  • 6 to 9 PM56%

    32 flights · avg delay 27 min

Best day: Friday (76%). Worst: Thursday (72%).

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.

J
80
F
81
M
80
A
80
M
59
J
65
J
58
A
50
S
77
O
81
N
81
D
75

What delays this route

  • Late-arriving aircraft45%
  • Airline (crew, maintenance, boarding)30%
  • Air traffic control and airport volume17%
  • Severe weather8%

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

Finding the most reliable connections from DEN to DAY…

DEN to DAY questions

What time of day is best to fly DEN to DAY?
3 to 6 PM: 74% of flights arrived on time, against 56% for departures 6 to 9 PM.
Which airline is most on time from DEN to DAY?
United, with a season-adjusted 70% chance of operating and arriving on time over 283 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 DEN to DAY?
August (50% on time); the best was February (81%), 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 DEN

Most on-time flights from DEN on every route →

Live status: FAA delays and ground stops