Skip to content
WanderNerd
Check a flight

Route Reliability

Jacksonville → Chicago

JAX–MDW · 848 miles · Jacksonville International Airport to Chicago Midway International Airport

82
Pretty Reliable
WanderNerd Reliability Score
79%
Arrive within 15 minutes
6 min
Average arrival delay
0.8%
Cancelled
382
Flights in the data

Data through May 2026.

Southwest Airlines is the only airline in this data on this route, arriving on time 79% of the time across 382 flights. No comparison to make.

What the data says

Morning flights do better here.

JAX–MDW flights departing between 3–6 AM arrived on time 100% of the time, versus 69% between 6–9 PM.

Sunday scaries are real for this one.

JAX–MDW flights arrived on time 87% of the time on Saturdays. On Sundays: 73%.

Trending in the right direction.

JAX–MDW flights arrived on time 85% of the time over the last three months in the data, compared with 77% in the three months before that.

Flights on this route

The breakdown

On-time by weekday
  • Mon78%(51 flights)
  • Tue80%(51 flights)
  • Wed79%(52 flights)
  • Thu76%(50 flights)
  • Fri79%(52 flights)
  • Sat87%(60 flights)
  • Sun73%(62 flights)
On-time by departure window
  • 3–6 AM100%(14 flights)
  • 6–9 AM90%(68 flights)
  • 9 AM–12 PM—(9 flights)
  • 12–3 PM90%(39 flights)
  • 3–6 PM74%(163 flights)
  • 6–9 PM69%(85 flights)
On-time trend by month
97%
May

Jun 76% → May 97% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202576%38
July 202567%39
August 202584%32
September 202583%30
October 202571%31
November 202583%29
December 202571%31
January 202685%27
February 202674%27
March 202675%32
April 202684%31
May 202697%31

Same trip, other airports

Keep nerding

Based on 382 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.