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

Chicago, IL (MDW) to Oakland, CA (OAK) flight delay odds

61.8% of 482 official scheduled MDW-to-OAK flights arrived on time; 20.7% arrived at least 30 minutes late and 1.2% 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
61.8%arrived on time
20.7%30+ min late
1.2%cancelled
482scheduled flights
Based on July 2025–June 2026; on time means arrival less than 15 minutes late.
60+ minutes late8.3%all scheduled flights
120+ minutes late2.7%all scheduled flights
Diverted0.2%did not reach as scheduled
Average arrival+16.0 mincompleted flights

Which departure time was most reliable for MDW to OAK?

Among qualifying MDW-to-OAK departure window results, Late morning had the highest on-time rate: 73.3% of 135 flights. Night was lowest at 41.2% across 85 flights.

Departure windowFlightsOn time30+ minCancelled
Early morning10361.2%19.4%1.0%
Late morning13573.3%14.8%1.5%
Afternoon10864.8%15.7%0.0%
Evening5160.8%19.6%0.0%
Night8541.2%38.8%3.5%

Which weekday was most reliable for MDW to OAK?

Among qualifying MDW-to-OAK weekday results, Tuesday had the highest on-time rate: 73.2% of 71 flights. Monday was lowest at 53.6% across 69 flights.

DayFlightsOn time30+ minCancelled
Monday6953.6%26.1%1.4%
Tuesday7173.2%12.7%1.4%
Wednesday6863.2%19.1%0.0%
Thursday6955.1%17.4%2.9%
Friday6966.7%23.2%0.0%
Saturday6264.5%17.7%3.2%
Sunday7456.8%28.4%0.0%

Which airline was most reliable for MDW to OAK?

Only Southwest Airlines met the MDW-to-OAK airline threshold: 61.8% of 482 scheduled flights arrived on time during July 2025–June 2026.

AirlineFlightsOn time30+ minCancelled
Southwest Airlines48261.8%20.7%1.2%

Which month was most reliable for MDW to OAK?

Among qualifying MDW-to-OAK month results, August 2025 had the highest on-time rate: 78.4% of 37 flights. December 2025 was lowest at 36.4% across 33 flights.

MonthFlightsOn time30+ minCancelled
July 20253557.1%22.9%0.0%
August 20253778.4%8.1%0.0%
September 20253476.5%5.9%0.0%
October 20253545.7%22.9%0.0%
November 20253363.6%24.2%6.1%
December 20253336.4%36.4%0.0%
January 20263275.0%18.8%0.0%
February 20262871.4%17.9%0.0%
March 20265459.3%24.1%7.4%
April 20265356.6%24.5%0.0%
May 20265273.1%9.6%0.0%
June 20265653.6%30.4%0.0%

What drove MDW to OAK delay minutes?

Late aircraft was the largest recorded MDW-to-OAK delay category, accounting for 43.7% of 8,878 BTS-attributed delay minutes during July 2025–June 2026.

Airline35.9%
Late aircraft43.7%
National airspace18.8%
Weather1.7%
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.