Route · RDU → ORD · 2020–2025 BTS data
Raleigh/Durham to Chicago
According to PlainFlights' route traffic ranking (BTS On-Time Performance total flights), RDU to ORD (Raleigh/Durham to Chicago) ranks #596 of 4927 tracked domestic routes by total flights (most flights = #1).
Data updated 2026-06-13
- 82%
- On-time
- +3 pts
- vs US avg
- 87 min
- Delay when late
- 15,272
- Flights
- #596 of 4927
- Corpus placement
Cancelled
1.4%
Best Month
Mar 2024 90%
Worst Month
Jul 2025 66%
Distance
646 mi
Carriers
38
Monthly Performance
Recent 24 months of route data.
| Period | Flights | Delayed | Cancelled | Diverted | Carriers |
|---|---|---|---|---|---|
| Dec 2025 | 290 | 81 | 3 | 0 | YX,OH,F9,AA,MQ,UA |
| Nov 2025 | 309 | 74 | 12 | 0 | UA,F9,MQ,AA,YX |
| Oct 2025 | 327 | 94 | 1 | 0 | AA,UA,YX,F9,MQ |
| Sep 2025 | 266 | 46 | 0 | 0 | MQ,UA,YX,F9,AA |
| Aug 2025 | 273 | 64 | 8 | 3 | AA,YX,F9,MQ,UA |
| Jul 2025 | 276 | 93 | 7 | 2 | AA,UA,YX,F9,MQ |
| Jun 2025 | 272 | 76 | 2 | 0 | AA,OO,UA,YX,F9,MQ |
| May 2025 | 297 | 47 | 2 | 0 | AA,OO,UA,YX,F9,MQ |
| Apr 2025 | 258 | 34 | 6 | 0 | MQ,OO,UA,YX,AA |
| Mar 2025 | 257 | 53 | 2 | 2 | AA,YX,UA,MQ |
| Feb 2025 | 214 | 42 | 4 | 1 | AA,UA,YX,MQ |
| Jan 2025 | 232 | 37 | 7 | 0 | AA,YX,UA,MQ |
| Dec 2024 | 264 | 42 | 0 | 0 | AA,F9,MQ,OO,UA,YX |
| Nov 2024 | 270 | 31 | 1 | 0 | YX,UA,MQ,F9,AA |
| Oct 2024 | 307 | 33 | 1 | 1 | UA,MQ,OO,YX,F9,AA |
| Sep 2024 | 293 | 51 | 2 | 0 | YX,OO,UA,AA,F9,MQ |
| Aug 2024 | 292 | 72 | 5 | 1 | AA,F9,MQ,YX,OO,UA |
| Jul 2024 | 281 | 69 | 8 | 1 | AA,F9,MQ,OO,UA,YX |
| Jun 2024 | 266 | 58 | 5 | 2 | AA,F9,MQ,OO,UA,YX |
| May 2024 | 275 | 74 | 4 | 3 | AA,F9,MQ,YX,OO,UA |
| Apr 2024 | 244 | 47 | 0 | 0 | AA,F9,MQ,UA,YX |
| Mar 2024 | 244 | 25 | 0 | 0 | AA,MQ,YX,UA |
| Feb 2024 | 213 | 25 | 1 | 0 | AA,MQ,UA,YX |
| Jan 2024 | 227 | 48 | 10 | 0 | AA,MQ,YX,UA |
RDU–ORD seasonal on-time pattern
Best: April (86.8%) · weakest: July (73.9%)
Strongest calendar month
April
86.8% on-time · ~195 flights/mo
Busiest calendar month
October
~239 flights/mo avg
Weakest calendar month
July
73.9% on-time · ~219 flights/mo
Cancellation Rate
1.4%
91 of 6,447 flights
Diversion Rate
0.2%
16 of 6,447 flights
Explore origin & destination
On-time and delay data for the airports this route connects.
RDU - Raleigh/Durham
Full on-time, delay-cause, and seasonal performance for Raleigh/Durham, NC.
RDU on-time profileORD - Chicago
Full on-time, delay-cause, and seasonal performance for Chicago, IL.
ORD on-time profileCompare the two airports
See RDU and ORD side by side on delays, cancellations, and reliability.
Compare RDU vs ORDOrigin-hub reliability standing
Mid-pack among RDU departures
From RDU, this corridor sits with 25 other 75–85% on-time routes out of 35 tracked departures, not the hub's reliability leaders (9 at ≥85%) and not the softest ( 1 below 75%). Destination: Chicago · fleet on-time rank #2368 of 4927.
Similar routes
Other BTS-tracked routes with comparable performance or trip length to RDU–ORD.
Routes with a similar on-time rate
What the Data Says About RDU to ORD
Bureau of Transportation Statistics records show Raleigh/Durham to Chicago (RDU to ORD) running a 82% on-time rate over 15,272 tracked flights, on the stronger end of a typical domestic pairing. When flights do run late, the average delay is 87.0 minutes. The 646-mile corridor is served by 38 carriers, and over the last 24 months 1.4% of 6,447 flights were cancelled, 0.2% diverted.
The monthly split is wide on this route: Mar 2024 posted the strongest performance at 90% on-time, while Jul 2025 came in at just 66% - a 23-point swing worth factoring into travel timing.
On the multi-year calendar, RDU–ORD peaks in April at 86.8% on-time while October carries the heaviest traffic (~239 flights per month) ; the softest month is July at 73.9%, a 12.9-point swing that repeats because the corridor's weather and holiday mix stays stable year to year.
Frequently Asked Questions
Where does RDU to ORD rank among US routes by traffic? ▼
How often are flights delayed from RDU to ORD? ▼
What is the cancellation rate for RDU to ORD? ▼
How far is the flight from RDU to ORD? ▼
When is the best time to fly from RDU to ORD? ▼
Airports on this route
Data source
Data Source: Bureau of Transportation Statistics (BTS), On-Time Performance Data. Statistics reflect cumulative performance across all available reporting periods.
Read our methodology - how this data is sourced, computed, and verified.
Using RDU–ORD data
RDU–ORD runs 3 pts above the national 79% average; the remaining risk is month-to-month swing and carrier mix, not a weak headline rate.
- Compare RDU and ORD airport profiles: delay causes and top routes differ even on the same corridor. RDU airport
- If your dates flex, April (86.8% on-time) beats July (73.9%) on this corridor. Seasonal chart
- 4 other routes post a similar 82% on-time rate; compare before you commit to this pairing. Similar routes
On-time rate reflects the BTS historical average across all reporting carriers on this origin–destination pair, not any single flight or booking recommendation.
Every figure on PlainFlights is rendered directly from BTS On-Time Performance data, no number is typed in by an editor. This page aggregates this specific route's on-time performance and monthly trend, live from the dataset. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error.