Historical on-time performance
Memphis to Chicago
480 miData through May 2026Source: US DOT · BTS
Flights on MEM–MDW arrive on time 85% of the time over the last 12 months.
On-time rate85%arrived within 15 min
p90 delay20 min1 in 10 flights is worse (tail risk)
Cancelled1.7%of scheduled flights
based on 661 flights over the last 12 months. On-time means arriving within 15 minutes (BTS standard).
By airline
How each carrier compares
- Southwest AirlinesOn-time85%Medianon timep9020 minCancel1.7%Flights661
Why flights run late
Delay causes
- Airline36%
- Weather0%
- Air traffic (NAS)22%
- Late aircraft42%
- Security0%
Most delay minutes here are attributed to Late aircraft.
When flights don't go
Why flights were cancelled
- Airline9%
- Weather91%
- Air traffic (NAS)0%
- Security0%
Most cancellations here are attributed to Weather. Shares are among 11 cancellations with a reported cause (BTS reports causes from June 2003).
Over time
On-time trend
By season
On-time rate by month
When to fly
Best time to fly MEM → MDW
All airlines · rolling 36 months (2023-06 .. 2026-05).
Best time of day
Mornings are the most reliable time of day to fly this route — 88% on time.
- Mornings88% on time · p90 15 min · 1,016 flights
- Afternoons74% on time · p90 40 min · 660 flights
- Evenings73% on time · p90 55 min · 232 flights
Best day of week
On-time rates are fairly even by day on this route — ranging from 79% to 86% on time.
- Saturdays86% on time · p90 15 min · 192 flights · limited
- Wednesdays85% on time · p90 25 min · 284 flights
- Tuesdays84% on time · p90 30 min · 287 flights
- Mondays81% on time · p90 25 min · 306 flights
- Thursdays80% on time · p90 35 min · 305 flights
- Sundays79% on time · p90 30 min · 309 flights
- Fridays79% on time · p90 30 min · 308 flights
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