Historical on-time performance
Chicago to Memphis
480 miData through May 2026Source: US DOT · BTS
Flights on MDW–MEM arrive on time 78% of the time over the last 12 months.
On-time rate78%arrived within 15 min
p90 delay40 min1 in 10 flights is worse (tail risk)
Cancelled1.4%of scheduled flights
based on 662 flights over the last 12 months. On-time means arriving within 15 minutes (BTS standard).
By airline
How each carrier compares
- Southwest AirlinesOn-time78%Medianon timep9040 minCancel1.4%Flights662
Why flights run late
Delay causes
- Airline32%
- Weather1%
- Air traffic (NAS)14%
- Late aircraft52%
- Security2%
Most delay minutes here are attributed to Late aircraft.
When flights don't go
Why flights were cancelled
- Airline0%
- Weather100%
- Air traffic (NAS)0%
- Security0%
Most cancellations here are attributed to Weather. Shares are among 9 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 MDW → MEM
All airlines · rolling 36 months (2023-06 .. 2026-05).
Best time of day
On-time rates are fairly even by time of day on this route — ranging from 65% to 87% on time.
- Mornings87% on time · p90 15 min · 749 flights
- Middays84% on time · p90 20 min · 292 flights
- Overnights65% on time · p90 65 min · 782 flights
Best day of week
On-time rates are fairly even by day on this route — ranging from 73% to 80% on time.
- Wednesdays80% on time · p90 30 min · 285 flights
- Tuesdays77% on time · p90 40 min · 284 flights
- Sundays77% on time · p90 40 min · 309 flights
- Fridays76% on time · p90 40 min · 308 flights
- Saturdays76% on time · p90 30 min · 192 flights · limited
- Mondays74% on time · p90 55 min · 306 flights
- Thursdays73% on time · p90 40 min · 305 flights
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