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Route on-time record

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

Dayton (James M. Cox Dayton International Airport) to Chicago (Chicago O'Hare International Airport). 1,799 nonstop flights in Jun 2025 to May 2026, 72% arrived within 15 minutes and 4.5% were cancelled. The most reliable flight number was Envoy 3415 at 8:27 AM.

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

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DAY → ORD

Dayton to Chicago: 1,799 nonstop flights a year

On time (12 months)

72%

Cancelled

4.5%

avg delay 28 min

Best time to leave

Before 9 AM

86% on time vs 56% 3 to 6 PM

Most reliable airline

Envoy

72% chance on time

Check DAY to ORD fares

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 · Envoy 3415 · sold as American Eagle

    8:27 AM → 9:05 AM1h 38m nonstop

    Local times, typical schedule. Last flown 2026-05-20.

    84%

    chance on time

    On time (history)
    92%
    Cancelled
    0.0%
    Avg arrival delay
    5 min
    • Arrived on time 92% of the time (13 flights, Jun 2025 to May 2026).
    • Leaves in this route's most on-time window (Before 9 AM: 86% on time; 3 to 6 PM: 56%).

    Limited track record · 13 flights

    Find 8:27 AM flight fares Opens this date on Aviasales

  2. #2 · SkyWest 6308 · sold as United Express, Delta Connection, American Eagle or Alaska

    8:20 AM → 9:02 AM1h 42m nonstop

    Local times, typical schedule. Last flown 2026-05-31.

    76%

    chance on time

    On time (history)
    80%
    Cancelled
    0.0%
    Avg arrival delay
    16 min
    • Arrived on time 80% of the time (10 flights, Jun 2025 to May 2026).
    • Leaves in this route's most on-time window (Before 9 AM: 86% on time; 3 to 6 PM: 56%).

    Limited track record · 10 flights

    Find 8:20 AM flight fares Opens this date on Aviasales

  3. #3 · Envoy 3411 · sold as American Eagle

    12:33 PM → 1:06 PM1h 33m nonstop

    Local times, typical schedule. Last flown 2026-05-20.

    74%

    chance on time

    On time (history)
    86%
    Cancelled
    0.0%
    Avg arrival delay
    16 min
    • Arrived on time 86% of the time (14 flights, Jun 2025 to May 2026).

    Limited track record · 14 flights

    Find 12:33 PM flight fares Opens this date on Aviasales

  4. #4 · SkyWest 4749 · sold as United Express, Delta Connection, American Eagle or Alaska

    6:10 PM → 6:46 PM1h 36m nonstop

    Local times, typical schedule. Last flown 2026-05-31.

    73%

    chance on time

    On time (history)
    100%
    Cancelled
    0.0%
    Avg arrival delay
    1 min
    • Arrived on time 100% of the time (18 flights, Jun 2025 to May 2026).
    • Lands inside ORD's trouble window: 43% of its 237 ground stops and delay programs started between 2 PM and 8 PM.

    Limited track record · 18 flights

    Find 6:10 PM flight fares Opens this date on Aviasales

  5. #5 · SkyWest 4998 · sold as United Express, Delta Connection, American Eagle or Alaska

    6:39 PM → 7:26 PM1h 47m nonstop

    Local times, typical schedule. Last flown 2026-05-20.

    65%

    chance on time

    On time (history)
    74%
    Cancelled
    11.4%
    Avg arrival delay
    23 min
    • Arrived on time 74% of the time (39 flights, Jun 2025 to May 2026).
    • Cancelled 11.4% of the time (5 of 44).
    • Lands inside ORD's trouble window: 43% of its 237 ground stops and delay programs started between 2 PM and 8 PM.

    Limited track record · 39 flights

    Find 6:39 PM flight fares Opens this date on Aviasales

  6. #6 · Envoy 3687 · sold as American Eagle

    5:54 PM → 6:30 PM1h 36m nonstop

    Local times, typical schedule. Last flown 2026-05-31.

    64%

    chance on time

    On time (history)
    82%
    Cancelled
    0.0%
    Avg arrival delay
    7 min
    • Arrived on time 82% of the time (11 flights, Jun 2025 to May 2026).
    • Leaves in this route's least on-time window (3 to 6 PM: 56% on time; Before 9 AM: 86%).
    • Lands inside ORD's trouble window: 43% of its 237 ground stops and delay programs started between 2 PM and 8 PM.

    Limited track record · 11 flights

    Find 5:54 PM flight fares Opens this date on Aviasales

  7. #7 · SkyWest 6347 · sold as United Express, Delta Connection, American Eagle or Alaska

    12:03 PM → 12:34 PM1h 31m nonstop

    Local times, typical schedule. Last flown 2026-05-31.

    64%

    chance on time

    On time (history)
    78%
    Cancelled
    0.0%
    Avg arrival delay
    19 min
    • Arrived on time 78% of the time (9 flights, Jun 2025 to May 2026).

    Limited track record · 9 flights

    Find 12:03 PM flight fares Opens this date on Aviasales

  8. #8 · SkyWest 6321 · sold as United Express, Delta Connection, American Eagle or Alaska

    4:16 PM → 4:52 PM1h 36m nonstop

    Local times, typical schedule. Last flown 2026-05-31.

    53%

    chance on time

    On time (history)
    36%
    Cancelled
    0.0%
    Avg arrival delay
    88 min
    • Arrived on time 36% of the time (11 flights, Jun 2025 to May 2026).
    • Leaves in this route's least on-time window (3 to 6 PM: 56% on time; Before 9 AM: 86%).
    • Lands inside ORD's trouble window: 43% of its 237 ground stops and delay programs started between 2 PM and 8 PM.

    Limited track record · 11 flights

    Find 4:16 PM flight fares Opens this date on Aviasales

  9. #9 · SkyWest 4756 · sold as United Express, Delta Connection, American Eagle or Alaska

    4:27 PM → 5:01 PM1h 34m nonstop

    Local times, typical schedule. Last flown 2026-05-20.

    49%

    chance on time

    On time (history)
    32%
    Cancelled
    5.0%
    Avg arrival delay
    53 min
    • Arrived on time 32% of the time (19 flights, Jun 2025 to May 2026).
    • Leaves in this route's least on-time window (3 to 6 PM: 56% on time; Before 9 AM: 86%).
    • Lands inside ORD's trouble window: 43% of its 237 ground stops and delay programs started between 2 PM and 8 PM.

    Limited track record · 19 flights

    Find 4:27 PM flight fares Opens this date on Aviasales

Airlines on this route

Season-adjusted chance of operating and arriving on time.

  • Envoy Air (sold as American Eagle)72%

    323 flights · 77% on time as flown · 3.5% cancel

  • SkyWest Airlines (sold as United Express, Delta Connection, American Eagle or Alaska)64%

    503 flights · 66% on time as flown · 5.6% cancel

On time by departure time

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

  • Before 9 AM86%

    560 flights · avg delay 13 min

  • 9 AM to noon73%

    177 flights · avg delay 28 min

  • Noon to 3 PM70%

    481 flights · avg delay 33 min

  • 3 to 6 PM56%

    464 flights · avg delay 45 min

  • 6 to 9 PM74%

    117 flights · avg delay 21 min

Best day: Tuesday (79%). Worst: Sunday (73%).

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
66
F
65
M
78
A
79
M
75
J
76
J
74
A
74
S
83
O
87
N
79
D
74

What delays this route

  • Late-arriving aircraft44%
  • Airline (crew, maintenance, boarding)25%
  • Air traffic control and airport volume25%
  • Severe weather5%

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 DAY to ORD…

DAY to ORD questions

What time of day is best to fly DAY to ORD?
Before 9 AM: 86% of flights arrived on time, against 56% for departures 3 to 6 PM. Later flights inherit delays from earlier ones, so the first departures of the day usually run best.
Which airline is most on time from DAY to ORD?
Envoy, with a season-adjusted 72% chance of operating and arriving on time over 323 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 DAY to ORD?
February (65% on time); the best was October (87%), 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 DAY

Live status: FAA delays and ground stops