DAY to ORD flight delays & on-time performance
Nonstop flights from James M. Cox Dayton International Airport to Chicago O'Hare International Airport · 240 miles · Aug 2025 – Jul 2026
No FAA-reported ground stops or delays at DAY or ORD 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 Chicago (ORD) arrived on time 73% of the time in Aug 2025 – Jul 2026, worse than the 78% national average.
- 4.9% were cancelled, and 14% arrived an hour or more late.
- Republic Airways was the most punctual airline here (91% on time); SkyWest Airlines was the least (62%).
- Departures scheduled around 6am did best (88% on time); around 5pm did worst (59%).
- Saturday was the most reliable day to fly (76% on time) and Sunday the least (68%).
- The largest source of delay minutes was late-arriving aircraft (41%).
Which airline is most on time from DAY to ORD?
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 |
|---|---|---|---|---|---|
| Republic AirwaysRegional airline operating flights for American Eagle, Delta Connection and United Express. | 91% | 10.5% | 11 min | 3.5% | 95 |
| United Airlines | 81% | 1.4% | 10 min | 2.9% | 69 |
| Envoy AirRegional airline operating American Eagle flights. | 80% | 2.6% | 19 min | 8.4% | 381 |
| PSA AirlinesRegional airline operating American Eagle flights. | 74% | 4.3% | 29 min | 12.7% | 654 |
| SkyWest AirlinesRegional airline operating flights for United Express, Delta Connection, American Eagle and Alaska. | 62% | 6.7% | 40 min | 21.2% | 582 |
Best time of day to fly
On-time arrival rate by scheduled departure hour (local time).
- 6am88%117 flights
- 7am78%88 flights
- 8am87%303 flights
- 9am79%91 flights
- 10am59%41 flights
- 11am75%43 flights
- 12pm72%298 flights
- 1pm69%54 flights
- 2pm66%130 flights
- 4pm60%181 flights
- 5pm59%248 flights
- 6pm71%143 flights
- 8pm92%29 flights
Best day of the week
On-time arrival rate by day of departure.
- Monday70%8.7% cancelled
- Tuesday76%3.6% cancelled
- Wednesday70%3.8% cancelled
- Thursday73%3.3% cancelled
- Friday75%4.5% cancelled
- Saturday76%6.9% cancelled
- Sunday68%3.8% 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 aircraft41%
- Air traffic control & airport congestion26%
- Airline (crew, maintenance, cleaning, fueling)26%
- Extreme weather7%
- Security0%
Why flights are cancelled
Share of cancellations by reason.
- Extreme weather74%
- Air traffic control & airport congestion24%
- Airline (crew, maintenance, cleaning, fueling)2%
- Security0%
DAY to ORD: common questions
- How often are DAY to ORD flights on time?
- 73% 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 Chicago cancelled?
- 4.9% of scheduled flights were cancelled (88 of 1,781).
- How long are typical delays?
- Across all flights the average arrival delay was 28 min (early arrivals count as zero). Flights that were late arrived 101 min behind schedule on average, and 13.6% of flights were an hour or more late.
- How long is taxi time at DAY?
- Flights on this route spent 20 min taxiing from the gate to takeoff on average.
Related routes
Return trip: ORD to DAY — 67% 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 → ORD, nonstop flights by US airlines that report to the DOT. How we calculate this.