ORD to RDU flight delays
Chicago, IL (ORD) Raleigh/Durham, NC (RDU) · 646 miles
327 flights · March 2025 – August 2026 · US Bureau of Transportation Statistics
75.39%
Arrived on time
Within 15 minutes of schedule
3.06%
Cancelled
Share of scheduled flights
76 min
When late, late by
Average across delayed arrivals
20 min
Delay per flight
Averaged over every flight flown
What the record says about this route
Cancellation, not delay, is the risk worth pricing here: 3.06% of scheduled flights never operated. A late flight still gets you there. A cancelled one leaves you rebooking, and on a route with few daily departures that can mean losing a day.
Only Republic Airways flies this route in the published record, so there is no choice to weigh — the route's figures and the airline's are the same figures.
This is a thin route — 327 flights across the whole period. On a route this infrequent a cancellation is far more costly than the rate suggests, because the next departure may not be the same day.
Flights from Chicago to Raleigh/Durham run late more often than the average route, though not severely.
Which airline should you fly on this route?
Over March 2025 – August 2026, Republic Airways arrived on time most often on ORD to RDU.
Every airline on ORD to RDU
Ranked by how many flights each one operated. A carrier with fewer than 100 flights in the period is listed but not graded.
| Airline | Flights | On time | Cancelled | Avg delay | Grade |
|---|---|---|---|---|---|
| Republic Airways | 122 | 87.29% | 3.28% | 68 min | B |
| United Airlines | 90 | 70.79% | 1.11% | 75 min | — |
| American Airlines | 56 | 49.02% | 8.93% | 86 min | — |
| SkyWest Airlines | 54 | 81.48% | 0% | 67 min | — |
| Envoy Air | 5 | 80% | 0% | 52 min | — |
The return leg
RDU to ORD Raleigh/Durham back to Chicago 76.13% on time DOther routes from Chicago
Common questions
Are flights from Chicago to Raleigh/Durham usually delayed?
75.39% of flights on the ORD to RDU route arrived within 15 minutes of schedule, so roughly 2 in every ten arrived late. That is about the same as the average route in this record.
Which airlines fly from Chicago to Raleigh/Durham?
Only Republic Airways appears in the published record on this route, with 122 flights and 87.29% arriving on time.
How often are ORD to RDU flights cancelled?
3.06% of scheduled flights did not operate — about 31 in every thousand. That is high enough that cancellation, not delay, is the risk worth planning around.
When ORD to RDU flights are late, how late are they?
About 76 minutes on average across the flights that arrived more than 15 minutes behind schedule.
What these figures do and do not tell you
Everything on this page is counted from the flights that actually operated on ORD to RDU during March 2025 – August 2026, as reported by the airlines to the US Bureau of Transportation Statistics. "On time" is the federal definition: arriving at the gate within 15 minutes of the scheduled time.
A route's record is a description of the past, not a forecast. Weather, air traffic control and the aircraft's earlier flights that day drive most delays, and none of them are predictable from a historical rate. What the record does tell you is whether this route runs late more often than others, and which carrier on it has the better history — which is the part you can actually act on when you book.
Cancellations are counted separately from delays because they are a different problem for a traveller: a late flight still gets you there. How the grade is calculated →