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Route Reliability

Memphis → Chicago

MEM–MDW · 480 miles · Memphis International Airport to Chicago Midway International Airport

87
Pretty Reliable
WanderNerd Reliability Score
87%
Arrive within 15 minutes
2 min
Average arrival delay
1.7%
Cancelled
661
Flights in the data

Data through May 2026.

Southwest Airlines is the only airline in this data on this route, arriving on time 87% of the time across 661 flights. No comparison to make.

What the data says

Morning flights do better here.

MEM–MDW flights departing between 3–6 AM arrived on time 96% of the time, versus 79% between 3–6 PM.

Saturday comes out ahead.

A small edge: 91% on time on Saturdays against 84% on Tuesdays.

Recent months have been rougher.

MEM–MDW flights arrived on time 81% of the time over the last three months in the data, compared with 88% in the three months before that.

Flights on this route

The breakdown

On-time by weekday
  • Mon87%(98 flights)
  • Tue84%(96 flights)
  • Wed90%(94 flights)
  • Thu85%(99 flights)
  • Fri86%(98 flights)
  • Sat91%(63 flights)
  • Sun86%(101 flights)
On-time by departure window
  • 3–6 AM96%(138 flights)
  • 6–9 AM92%(182 flights)
  • 9 AM–12 PM—(1 flights)
  • 12–3 PM87%(31 flights)
  • 3–6 PM79%(264 flights)
  • 6–9 PM85%(33 flights)
On-time trend by month
79%
May

Jun 89% → May 79% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202589%55
July 202590%57
August 202588%57
September 202593%56
October 202595%58
November 202583%52
December 202585%58
January 202689%37
February 202691%42
March 202673%55
April 202690%60
May 202679%62

Same trip, other airports

Keep nerding

Based on 661 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.