ORD to DAY flight delays & on-time performance
Nonstop flights from Chicago O'Hare International Airport to James M. Cox Dayton International Airport · 240 miles · Aug 2025 – Jul 2026
No FAA-reported ground stops or delays at ORD or DAY right now. Individual flights can still be delayed by the airline; check with your airline for your flight.
Key facts
- Flights from Chicago (ORD) to Dayton (DAY) arrived on time 67% of the time in Aug 2025 – Jul 2026, worse than the 78% national average.
- 4.9% were cancelled, and 17% arrived an hour or more late.
- Envoy Air was the most punctual airline here (78% on time); PSA Airlines was the least (61%).
- Departures scheduled around 5pm did best (76% on time); around 7pm did worst (55%).
- Saturday was the most reliable day to fly (72% on time) and Sunday the least (63%).
- The largest source of delay minutes was late-arriving aircraft (56%).
Which airline is most on time from ORD to DAY?
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 | 81% | 1.4% | 17 min | 10.3% | 69 |
| Envoy AirRegional airline operating American Eagle flights. | 78% | 2.9% | 15 min | 8.1% | 383 |
| Republic AirwaysRegional airline operating flights for American Eagle, Delta Connection and United Express. | 73% | 7.4% | 19 min | 12.5% | 95 |
| SkyWest AirlinesRegional airline operating flights for United Express, Delta Connection, American Eagle and Alaska. | 62% | 5.8% | 34 min | 17.5% | 582 |
| PSA AirlinesRegional airline operating American Eagle flights. | 61% | 5.3% | 67 min | 23.1% | 655 |
Best time of day to fly
On-time arrival rate by scheduled departure hour (local time).
- 8am67%43 flights
- 9am69%322 flights
- 10am74%47 flights
- 11am62%111 flights
- 1pm70%182 flights
- 2pm67%244 flights
- 3pm74%189 flights
- 5pm76%55 flights
- 6pm64%105 flights
- 7pm55%240 flights
- 8pm64%100 flights
- 9pm71%102 flights
- 10pm55%24 flights
Best day of the week
On-time arrival rate by day of departure.
- Monday66%8.2% cancelled
- Tuesday65%3.5% cancelled
- Wednesday69%2.8% cancelled
- Thursday66%3.6% cancelled
- Friday66%4.2% cancelled
- Saturday72%7.3% cancelled
- Sunday63%4.9% 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 aircraft56%
- Airline (crew, maintenance, cleaning, fueling)20%
- Extreme weather13%
- Air traffic control & airport congestion12%
- Security0%
Why flights are cancelled
Share of cancellations by reason.
- Extreme weather74%
- Air traffic control & airport congestion23%
- Airline (crew, maintenance, cleaning, fueling)3%
- Security0%
ORD to DAY: common questions
- How often are ORD to DAY flights on time?
- 67% 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 Chicago to Dayton cancelled?
- 4.9% of scheduled flights were cancelled (88 of 1,784).
- How long are typical delays?
- Across all flights the average arrival delay was 40 min (early arrivals count as zero). Flights that were late arrived 117 min behind schedule on average, and 16.9% of flights were an hour or more late.
- How long is taxi time at ORD?
- Flights on this route spent 30 min taxiing from the gate to takeoff on average.
Related routes
Return trip: DAY to ORD — 73% on time
More flights from Chicago
Data: U.S. DOT Bureau of Transportation Statistics, Aug 2025 – Jul 2026 (12 months). Latest month published by BTS: July 2026. Route: ORD → DAY, nonstop flights by US airlines that report to the DOT. How we calculate this.