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Route Reliability

Chicago → Raleigh–Durham

MDW–RDU · 632 miles · Chicago Midway International Airport to Raleigh–Durham International Airport

83
Pretty Reliable
WanderNerd Reliability Score
82%
Arrive within 15 minutes
6 min
Average arrival delay
1.9%
Cancelled
1,009
Flights in the data

Data through May 2026.

Southwest Airlines is the only airline in this data on this route, arriving on time 82% of the time across 1,009 flights. No comparison to make.

What the data says

Morning flights do better here.

MDW–RDU flights departing between 6–9 AM arrived on time 91% of the time, versus 76% between 6–9 PM.

Sunday scaries are real for this one.

MDW–RDU flights arrived on time 87% of the time on Fridays. On Sundays: 78%.

Recent months have been rougher.

MDW–RDU flights arrived on time 80% of the time over the last three months in the data, compared with 87% in the three months before that.

Flights on this route

The breakdown

On-time by weekday
  • Mon80%(146 flights)
  • Tue84%(140 flights)
  • Wed84%(138 flights)
  • Thu85%(150 flights)
  • Fri87%(147 flights)
  • Sat79%(108 flights)
  • Sun78%(161 flights)
On-time by departure window
  • 6–9 AM91%(149 flights)
  • 9 AM–12 PM91%(178 flights)
  • 12–3 PM80%(221 flights)
  • 3–6 PM79%(146 flights)
  • 6–9 PM76%(295 flights)
  • 9 PM–12 AM—(1 flights)
On-time trend by month
83%
May

Jun 74% → May 83% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202574%109
July 202573%117
August 202583%92
September 202590%90
October 202588%80
November 202589%82
December 202579%89
January 202693%61
February 202689%55
March 202676%63
April 202681%72
May 202683%80

Same trip, other airports

Keep nerding

Based on 1,009 historical flights, because apparently we checked. Historical flight data: U.S. Bureau of Transportation Statistics, June 2025 – May 2026. Data through May 2026. How we calculate this.