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Route Reliability

Tucson → Chicago

TUS–MDW · 1,440 miles · Tucson International Airport to Chicago Midway International Airport

85
Pretty Reliable
WanderNerd Reliability Score
84%
Arrive within 15 minutes
2 min
Average arrival delay
0.9%
Cancelled
344
Flights in the data

Data through May 2026.

Southwest Airlines is the only airline in this data on this route, arriving on time 84% of the time across 344 flights. No comparison to make.

What the data says

Morning-you made the right choice.

TUS–MDW flights departing between 6–9 AM arrived on time 93% of the time, versus 66% between 12–3 PM.

Mondays have been rough.

TUS–MDW flights arrived on time 92% of the time on Saturdays and just 71% on Mondays. That gap is worth planning around.

Recent months have been rougher.

TUS–MDW flights arrived on time 62% of the time over the last three months in the data, compared with 83% in the three months before that.

Flights on this route

The breakdown

On-time by weekday
  • Mon71%(52 flights)
  • Tue83%(42 flights)
  • Wed91%(43 flights)
  • Thu88%(51 flights)
  • Fri82%(49 flights)
  • Sat92%(51 flights)
  • Sun82%(50 flights)
On-time by departure window
  • 3–6 AM—(9 flights)
  • 6–9 AM93%(192 flights)
  • 9 AM–12 PM89%(36 flights)
  • 12–3 PM66%(101 flights)
On-time trend by month
47%
May

Jun 100% → May 47% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 2025100%30
July 202597%30
August 2025100%21
September 202591%21
October 2025100%29
November 202593%29
December 202590%31
January 202680%30
February 202679%28
March 202669%29
April 202670%30
May 202647%30

Same trip, other airports

Keep nerding

Based on 344 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.