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

Long Beach, CA (LGB) to Chicago, IL (MDW) flight delay odds

81.6% of 288 official scheduled LGB-to-MDW flights arrived on time; 6.6% arrived at least 30 minutes late and 1.0% 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 SIGNALLower disruption
81.6%arrived on time
6.6%30+ min late
1.0%cancelled
288scheduled flights
Based on July 2025–June 2026; on time means arrival less than 15 minutes late.
60+ minutes late1.7%all scheduled flights
120+ minutes late0.0%all scheduled flights
Diverted1.7%did not reach as scheduled
Average arrival-0.9 mincompleted flights

Which departure time was most reliable for LGB to MDW?

Among qualifying LGB-to-MDW departure window results, Early morning had the highest on-time rate: 90.6% of 53 flights. Afternoon was lowest at 76.8% across 95 flights.

Departure windowFlightsOn time30+ minCancelled
Early morning5390.6%5.7%0.0%
Late morning14081.4%4.3%1.4%
Afternoon9576.8%10.5%1.1%

Which weekday was most reliable for LGB to MDW?

Among qualifying LGB-to-MDW weekday results, Friday had the highest on-time rate: 90.9% of 44 flights. Monday was lowest at 63.6% across 44 flights.

DayFlightsOn time30+ minCancelled
Monday4463.6%13.6%0.0%
Tuesday4477.3%9.1%0.0%
Wednesday4381.4%4.7%2.3%
Thursday4388.4%7.0%0.0%
Friday4490.9%4.5%0.0%
Sunday4386.0%2.3%2.3%

Which airline was most reliable for LGB to MDW?

Only Southwest Airlines met the LGB-to-MDW airline threshold: 81.6% of 288 scheduled flights arrived on time during July 2025–June 2026.

AirlineFlightsOn time30+ minCancelled
Southwest Airlines28881.6%6.6%1.0%

Which month was most reliable for LGB to MDW?

Among qualifying LGB-to-MDW month results, September 2025 had the highest on-time rate: 96.7% of 30 flights. May 2026 was lowest at 52.0% across 25 flights.

MonthFlightsOn time30+ minCancelled
July 20253190.3%3.2%0.0%
August 20253190.3%0.0%0.0%
September 20253096.7%3.3%0.0%
October 20253187.1%6.5%0.0%
November 20252979.3%3.4%3.4%
December 20253177.4%16.1%0.0%
March 20262373.9%13.0%4.3%
April 20262680.8%7.7%0.0%
May 20262552.0%12.0%0.0%
June 20262676.9%3.8%3.8%

What drove LGB to MDW delay minutes?

Late aircraft was the largest recorded LGB-to-MDW delay category, accounting for 46.0% of 1,538 BTS-attributed delay minutes during July 2025–June 2026.

Airline30.4%
Late aircraft46.0%
National airspace23.5%
Weather0.0%
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.