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Route · MDW → RDU · 2020–2025 BTS data

Chicago to Raleigh/Durham

According to PlainFlights' route traffic ranking (BTS On-Time Performance total flights), MDW to RDU (Chicago to Raleigh/Durham) ranks #2135 of 4927 tracked domestic routes by total flights (most flights = #1).

Data updated 2026-06-13

76.4%
On-time
-2.6 pts
vs US avg
53 min
Delay when late
5,865
Flights
#2135 of 4927
Corpus placement

Cancelled

1.0%

Best Month

Sep 2025 90%

Worst Month

Jul 2024 66%

Distance

632 mi

Carriers

3

Monthly Performance

Recent 24 months of route data.

Period Flights Delayed Cancelled Diverted Carriers
Dec 2025 89 20 0 0 WN
Nov 2025 85 9 3 0 WN
Oct 2025 80 12 0 0 WN
Sep 2025 90 9 0 0 WN
Aug 2025 93 17 1 0 WN
Jul 2025 119 37 2 0 WN
Jun 2025 110 29 1 0 WN
May 2025 66 8 0 0 WN
Apr 2025 65 7 0 0 WN
Mar 2025 62 12 1 0 WN
Feb 2025 56 6 0 0 WN
Jan 2025 68 11 0 0 WN
Dec 2024 91 19 0 0 WN
Nov 2024 86 13 0 0 WN
Oct 2024 80 11 0 0 WN
Sep 2024 90 13 0 1 WN,F9
Aug 2024 105 27 0 1 F9,WN
Jul 2024 133 45 1 0 F9,WN
Jun 2024 123 35 0 0 F9,WN
May 2024 99 25 0 0 F9,WN
Apr 2024 90 16 0 1 F9,WN
Mar 2024 79 14 0 0 WN
Feb 2024 79 9 0 0 WN
Jan 2024 86 25 12 0 WN

MDW–RDU seasonal on-time pattern

Best: November (85.9%) · weakest: July (63.1%)

60%70%80%90% JanFebMarAprMayJunJulAugSepOctNovDec 78.3%

Strongest calendar month

November

85.9% on-time · ~86 flights/mo

Busiest calendar month

July

~100 flights/mo avg

Weakest calendar month

July

63.1% on-time · ~100 flights/mo

Cancellation Rate

1.0%

21 of 2,124 flights

Diversion Rate

0.1%

3 of 2,124 flights

Explore origin & destination

On-time and delay data for the airports this route connects.

MDW - Chicago

Full on-time, delay-cause, and seasonal performance for Chicago, IL.

MDW on-time profile

RDU - Raleigh/Durham

Full on-time, delay-cause, and seasonal performance for Raleigh/Durham, NC.

RDU on-time profile

Compare the two airports

See MDW and RDU side by side on delays, cancellations, and reliability.

Compare MDW vs RDU

Origin-hub reliability standing

Mid-pack among MDW departures

From MDW, this corridor sits with 51 other 75–85% on-time routes out of 69 tracked departures, not the hub's reliability leaders (0 at ≥85%) and not the softest ( 18 below 75%). Destination: Raleigh/Durham · fleet on-time rank #4232 of 4927.

What the Data Says About MDW to RDU

The Chicago to Raleigh/Durham corridor (MDW to RDU) posts a 76.4% on-time rate on the lower edge of the average band, based on 5,865 tracked flights. Late flights run 52.6 minutes behind on average. 3 carriers cover the 632-mile route; over the last 24 months, 21 of 2,124 flights were cancelled (1.0%) and 0.1% diverted.

The monthly split is wide on this route: Sep 2025 posted the strongest performance at 90% on-time, while Jul 2024 came in at just 66% - a 24-point swing worth factoring into travel timing.

On the multi-year calendar, MDW–RDU peaks in November at 85.9% on-time while July carries the heaviest traffic (~100 flights per month) ; the softest month is July at 63.1%, a 22.8-point swing that repeats because the corridor's weather and holiday mix stays stable year to year.

Frequently Asked Questions

Where does MDW to RDU rank among US routes by traffic? ▼
According to PlainFlights' route traffic ranking, MDW to RDU ranks #2135 of 4927 tracked domestic routes by total flights (most flights = #1). That ordinal matches our busiest-routes listing (total_flights DESC). See /methodology#corpus-placement for the exact sort basis.
How often are flights delayed from MDW to RDU? ▼
Flights from Chicago to Raleigh/Durham have a 76.4% on-time rate based on 5,865 flights. The average delay is 52.6 minutes. The best recent month was Sep 2025 with 90% on-time.
What is the cancellation rate for MDW to RDU? ▼
Over the last 24 months, 1.0% of flights on this route were cancelled (21 of 2,124 flights) and 0.1% were diverted.
How far is the flight from MDW to RDU? ▼
The flight distance from Chicago (MDW) to Raleigh/Durham (RDU) is approximately 632 miles. This route is served by 3 carriers.
When is the best time to fly from MDW to RDU? ▼
The best recent month for on-time performance was Sep 2025 (90% on-time). The worst was Jul 2024 (66% on-time). Consider booking during months with historically better performance.

Airports on this route

MDW Airport

Chicago
RDU Airport

Raleigh/Durham
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 MDW–RDU data

MDW–RDU is mid-pack at 76.4% on-time; month and carrier mix move more than the corridor headline.

  • Compare MDW and RDU airport profiles: delay causes and top routes differ even on the same corridor. MDW airport
  • If your dates flex, November (85.9% on-time) beats July (63.1%) on this corridor. Seasonal chart
  • 4 other routes post a similar 76.4% 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.

Data sourced from U.S. Department of Transportation Bureau of Transportation Statistics (BTS) On-Time Performance data. See our methodology for details. Retrieved and formatted by PlainFlights

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.