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Route Reliability

Los Angeles → Chicago

LAX–MDW · 1,751 miles · Los Angeles International Airport to Chicago Midway International Airport

84
Pretty Reliable
WanderNerd Reliability Score
81%
Arrive within 15 minutes
3 min
Average arrival delay
0.5%
Cancelled
1,355
Flights in the data

Data through May 2026.

Southwest Airlines is the only airline in this data on this route, arriving on time 81% of the time across 1,355 flights. No comparison to make.

What the data says

Morning flights do better here.

LAX–MDW flights departing between 3–6 AM arrived on time 92% of the time, versus 50% between 6–9 PM.

Thursday is the weak spot.

LAX–MDW flights arrived on time 87% of the time on Saturdays. On Thursdays: 77%.

Recent months have been rougher.

LAX–MDW flights arrived on time 72% of the time over the last three months in the data, compared with 84% in the three months before that.

Flights on this route

The breakdown

On-time by weekday
  • Mon78%(204 flights)
  • Tue83%(192 flights)
  • Wed86%(187 flights)
  • Thu77%(200 flights)
  • Fri81%(205 flights)
  • Sat87%(162 flights)
  • Sun78%(189 flights)
On-time by departure window
  • 3–6 AM92%(137 flights)
  • 6–9 AM92%(293 flights)
  • 9 AM–12 PM74%(183 flights)
  • 12–3 PM68%(157 flights)
  • 3–6 PM66%(195 flights)
  • 6–9 PM50%(14 flights)
  • 9 PM–12 AM87%(360 flights)
On-time trend by month
75%
May

Jun 85% → May 75% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202585%137
July 202581%145
August 202583%118
September 202591%116
October 202581%119
November 202582%103
December 202582%114
January 202685%97
February 202686%84
March 202667%99
April 202676%101
May 202675%106

Same trip, other airports

Keep nerding

Based on 1,355 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.