ORD to RDU flight delays & on-time performance
Nonstop flights from Chicago O'Hare International Airport to Raleigh-Durham International Airport · 646 miles · Aug 2025 – Jul 2026
No FAA-reported ground stops or delays at ORD or RDU 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 Raleigh/Durham (RDU) arrived on time 74% of the time in Aug 2025 – Jul 2026, worse than the 78% national average.
- 2.5% were cancelled, and 10% arrived an hour or more late.
- Envoy Air was the most punctual airline here (77% on time); American Airlines was the least (60%).
- Departures scheduled around 6am did best (87% on time); around 8pm did worst (53%).
- Tuesday was the most reliable day to fly (78% on time) and Friday the least (71%).
- The largest source of delay minutes was late-arriving aircraft (47%).
Which airline is most on time from ORD to RDU?
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. | 81% | 2.3% | 11 min | 3.1% | 133 |
| Envoy AirRegional airline operating American Eagle flights. | 77% | 1.9% | 13 min | 6.3% | 520 |
| United Airlines | 77% | 1.1% | 19 min | 8.6% | 1,278 |
| Republic AirwaysRegional airline operating flights for American Eagle, Delta Connection and United Express. | 75% | 3.4% | 18 min | 9.4% | 1,085 |
| Frontier Airlines | 65% | 4.4% | 51 min | 18.3% | 114 |
| American Airlines | 60% | 4.0% | 42 min | 20.7% | 524 |
| PSA AirlinesRegional airline operating American Eagle flights. | 50% | 0.0% | 43 min | 50.0% | 2 |
Best time of day to fly
On-time arrival rate by scheduled departure hour (local time).
- 6am87%120 flights
- 7am84%305 flights
- 8am87%277 flights
- 9am83%372 flights
- 10am78%299 flights
- 11am80%202 flights
- 12pm61%64 flights
- 1pm71%246 flights
- 2pm74%485 flights
- 3pm81%87 flights
- 4pm61%75 flights
- 5pm61%110 flights
- 6pm62%522 flights
- 7pm78%96 flights
- 8pm53%334 flights
- 9pm76%54 flights
Best day of the week
On-time arrival rate by day of departure.
- Monday71%3.4% cancelled
- Tuesday78%1.0% cancelled
- Wednesday76%1.2% cancelled
- Thursday75%1.5% cancelled
- Friday71%1.6% cancelled
- Saturday75%4.4% cancelled
- Sunday71%4.1% 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 aircraft47%
- Airline (crew, maintenance, cleaning, fueling)28%
- Air traffic control & airport congestion19%
- Extreme weather7%
- Security0%
Why flights are cancelled
Share of cancellations by reason.
- Extreme weather76%
- Air traffic control & airport congestion21%
- Airline (crew, maintenance, cleaning, fueling)3%
- Security0%
ORD to RDU: common questions
- How often are ORD to RDU flights on time?
- 74% 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 Raleigh/Durham cancelled?
- 2.5% of scheduled flights were cancelled (90 of 3,656).
- How long are typical delays?
- Across all flights the average arrival delay was 22 min (early arrivals count as zero). Flights that were late arrived 79 min behind schedule on average, and 10.3% of flights were an hour or more late.
- How long is taxi time at ORD?
- Flights on this route spent 29 min taxiing from the gate to takeoff on average.
Related routes
Return trip: RDU to ORD — 75% 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 → RDU, nonstop flights by US airlines that report to the DOT. How we calculate this.