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Route Reliability

New Orleans → Chicago

MSY–MDW · 825 miles · Louis Armstrong New Orleans International Airport to Chicago Midway International Airport

80
Pretty Reliable
WanderNerd Reliability Score
78%
Arrive within 15 minutes
9 min
Average arrival delay
1.0%
Cancelled
1,023
Flights in the data

Data through May 2026.

Southwest Airlines is the only airline in this data on this route, arriving on time 78% of the time across 1,023 flights. No comparison to make.

What the data says

Morning flights do better here.

MSY–MDW flights departing between 3–6 AM arrived on time 98% of the time, versus 47% between 6–9 PM.

Friday is doing you no favors.

MSY–MDW flights arrived on time 87% of the time on Tuesdays and just 70% on Fridays. That gap is worth planning around.

Recent months have been rougher.

MSY–MDW flights arrived on time 65% of the time over the last three months in the data, compared with 86% in the three months before that.

Flights on this route

The breakdown

On-time by weekday
  • Mon75%(143 flights)
  • Tue87%(130 flights)
  • Wed86%(129 flights)
  • Thu77%(141 flights)
  • Fri70%(147 flights)
  • Sat82%(131 flights)
  • Sun74%(186 flights)
On-time by departure window
  • 3–6 AM98%(52 flights)
  • 6–9 AM93%(306 flights)
  • 9 AM–12 PM84%(139 flights)
  • 12–3 PM77%(176 flights)
  • 3–6 PM71%(179 flights)
  • 6–9 PM47%(150 flights)
  • 9 PM–12 AM—(5 flights)
On-time trend by month
62%
May

Jun 72% → May 62% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202572%95
July 202579%97
August 202584%83
September 202588%80
October 202588%97
November 202583%75
December 202577%79
January 202686%64
February 202694%68
March 202659%88
April 202674%89
May 202662%92

Same trip, other airports

Keep nerding

Based on 1,023 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.