ORD to DEC flight delays & on-time performance
Nonstop flights from Chicago O'Hare International Airport to Decatur Airport · 156 miles · Aug 2025 – Jul 2026
No FAA-reported ground stops or delays at ORD or DEC 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 Decatur (DEC) arrived on time 70% of the time in Aug 2025 – Jul 2026, worse than the 78% national average.
- 4.3% were cancelled, and 14% arrived an hour or more late.
- SkyWest Airlines is the only airline reporting nonstop flights on this route.
- Departures scheduled around 7am did best (82% on time); around 4pm did worst (60%).
- Friday was the most reliable day to fly (79% on time) and Tuesday the least (63%).
- The largest source of delay minutes was late-arriving aircraft (40%).
Which airline is most on time from ORD to DEC?
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 |
|---|---|---|---|---|---|
| SkyWest AirlinesRegional airline operating flights for United Express, Delta Connection, American Eagle and Alaska. | 70% | 4.3% | 28 min | 13.9% | 627 |
Best time of day to fly
On-time arrival rate by scheduled departure hour (local time).
- 7am82%290 flights
- 4pm60%324 flights
- 5pm38%13 flights
Best day of the week
On-time arrival rate by day of departure.
- Monday71%6.7% cancelled
- Tuesday63%1.8% cancelled
- Wednesday70%2.9% cancelled
- Thursday70%4.0% cancelled
- Friday79%2.8% cancelled
- Saturday64%9.1% cancelled
- Sunday64%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 aircraft40%
- Airline (crew, maintenance, cleaning, fueling)34%
- Air traffic control & airport congestion21%
- Extreme weather5%
- Security0%
Why flights are cancelled
Share of cancellations by reason.
- Extreme weather85%
- Air traffic control & airport congestion15%
- Airline (crew, maintenance, cleaning, fueling)0%
- Security0%
ORD to DEC: common questions
- How often are ORD to DEC flights on time?
- 70% 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 Decatur cancelled?
- 4.3% of scheduled flights were cancelled (27 of 627).
- 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 88 min behind schedule on average, and 13.9% of flights were an hour or more late.
- How long is taxi time at ORD?
- Flights on this route spent 31 min taxiing from the gate to takeoff on average.
Related routes
Return trip: DEC to ORD — 67% on time
More flights from Chicago
More flights to Decatur
Data: U.S. DOT Bureau of Transportation Statistics, Aug 2025 – Jul 2026 (12 months). Latest month published by BTS: July 2026. Route: ORD → DEC, nonstop flights by US airlines that report to the DOT. How we calculate this.