Historical on-time performance
Chicago to Dayton
240 miData through Dec 2025Source: US DOT · BTS
Flights on ORD–DAY arrive on time 68% of the time over the last 12 months.
On-time rate68%arrived within 15 min
p90 delay85 min1 in 10 flights is worse (tail risk)
Cancelled3.2%of scheduled flights
based on 1,512 flights over the last 12 months. On-time means arriving within 15 minutes (BTS standard).
By airline
How each carrier compares
Too close to call — no single carrier is clearly more on-time here.
- SkyWest AirlinesOn-time73%Medianon timep9055 minCancel2.4%Flights735
- Envoy AirOn-time73%Medianon timep9060 minCancel3.8%Flights183
- United AirlinesOn-time79%Medianon timep9045 minCancel1.6%Flights61
- PSA AirlinesOn-time58%Medianon timep90165 minCancel4.1%Flights533
Why flights run late
Delay causes
- Airline23%
- Weather8%
- Air traffic (NAS)12%
- Late aircraft57%
- Security0%
Most delay minutes here are attributed to Late aircraft.
Over time
On-time trend
By season
On-time rate by month
When to fly
Best time to fly ORD → DAY
All airlines · rolling 36 months (2023-01 .. 2025-12).
Best time of day
On-time rates are fairly even by time of day on this route — ranging from 71% to 77% on time.
- Middays77% on time · p90 55 min · 940 flights
- Overnights75% on time · p90 65 min · 651 flights
- Afternoons73% on time · p90 60 min · 954 flights
- Mornings72% on time · p90 55 min · 417 flights
- Evenings71% on time · p90 75 min · 834 flights
Best day of week
On-time rates are fairly even by day on this route — ranging from 70% to 78% on time.
- Saturdays78% on time · p90 60 min · 522 flights
- Tuesdays76% on time · p90 60 min · 548 flights
- Thursdays75% on time · p90 50 min · 530 flights
- Mondays73% on time · p90 60 min · 559 flights
- Fridays73% on time · p90 55 min · 552 flights
- Wednesdays73% on time · p90 65 min · 538 flights
- Sundays70% on time · p90 85 min · 547 flights
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