BTS DATA COMPLETE THROUGH JUNE 2026HISTORICAL ODDS · NOT LIVE FLIGHT STATUS
DelayOddsKnow the route before you book
MDW→SLC

Chicago, IL (MDW) to Salt Lake City, UT (SLC) flight delay odds

67.6% of 618 official scheduled MDW-to-SLC flights arrived on time; 16.5% arrived at least 30 minutes late and 1.9% were cancelled during July 2025–June 2026.

Source: U.S. Bureau of Transportation Statistics · Reporting window: July 2025–June 2026 · Updated September 16, 2026

HISTORICAL ROUTE SIGNALVariable
67.6%arrived on time
16.5%30+ min late
1.9%cancelled
618scheduled flights
Based on July 2025–June 2026; on time means arrival less than 15 minutes late.
60+ minutes late6.3%all scheduled flights
120+ minutes late1.3%all scheduled flights
Diverted0.2%did not reach as scheduled
Average arrival+9.7 mincompleted flights

Which departure time was most reliable for MDW to SLC?

Among qualifying MDW-to-SLC departure window results, Early morning had the highest on-time rate: 76.6% of 175 flights. Night was lowest at 49.7% across 155 flights.

Departure windowFlightsOn time30+ minCancelled
Early morning17576.6%9.7%0.6%
Late morning14772.8%10.9%0.0%
Afternoon5176.5%15.7%0.0%
Evening9067.8%16.7%5.6%
Night15549.7%29.7%3.9%

Which weekday was most reliable for MDW to SLC?

Among qualifying MDW-to-SLC weekday results, Tuesday had the highest on-time rate: 70.7% of 92 flights. Sunday was lowest at 62.2% across 90 flights.

DayFlightsOn time30+ minCancelled
Monday9469.1%14.9%3.2%
Tuesday9270.7%16.3%2.2%
Wednesday8770.1%14.9%0.0%
Thursday9270.7%17.4%2.2%
Friday9363.4%16.1%2.2%
Saturday7067.1%17.1%1.4%
Sunday9062.2%18.9%2.2%

Which airline was most reliable for MDW to SLC?

Only Southwest Airlines met the MDW-to-SLC airline threshold: 67.6% of 618 scheduled flights arrived on time during July 2025–June 2026.

AirlineFlightsOn time30+ minCancelled
Southwest Airlines61867.6%16.5%1.9%

Which month was most reliable for MDW to SLC?

Among qualifying MDW-to-SLC month results, October 2025 had the highest on-time rate: 87.7% of 57 flights. June 2026 was lowest at 51.8% across 56 flights.

MonthFlightsOn time30+ minCancelled
July 20255764.9%26.3%1.8%
August 20255764.9%14.0%3.5%
September 20255676.8%8.9%0.0%
October 20255787.7%3.5%0.0%
November 20253574.3%17.1%5.7%
December 20254254.8%28.6%0.0%
January 20263976.9%7.7%2.6%
February 20264678.3%4.3%0.0%
March 20266056.7%25.0%6.7%
April 20265761.4%12.3%3.5%
May 20265667.9%19.6%0.0%
June 20265651.8%28.6%0.0%

What drove MDW to SLC delay minutes?

Late aircraft was the largest recorded MDW-to-SLC delay category, accounting for 48.4% of 8,304 BTS-attributed delay minutes during July 2025–June 2026.

Airline27.6%
Late aircraft48.4%
National airspace21.4%
Weather2.6%
Security0.0%
This is historical evidence, not a forecast.

Weather, schedules and operations change. For a trip you have already booked, use the airline or airport for live status.