Historical on-time performance
Chicago to Memphis
480 miData through Dec 2025Source: 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)
Cancelled1.1%of scheduled flights
based on 649 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 minCancel1.1%Flights649
Why flights run late
Delay causes
- Airline34%
- Weather2%
- Air traffic (NAS)14%
- Late aircraft48%
- Security2%
Most delay minutes here are attributed to Late aircraft.
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 (2023-01 .. 2025-12).
Best time of day
On-time rates are fairly even by time of day on this route — ranging from 63% to 85% on time.
- Mornings85% on time · p90 20 min · 800 flights
- Middays83% on time · p90 20 min · 215 flights
- Evenings66% on time · p90 45 min · 77 flights · limited
- Afternoons66% on time · p90 45 min · 88 flights · limited
- Overnights63% on time · p90 65 min · 811 flights
Best day of week
On-time rates are fairly even by day on this route — ranging from 70% to 77% on time.
- Wednesdays77% on time · p90 35 min · 296 flights
- Tuesdays77% on time · p90 35 min · 294 flights
- Saturdays76% on time · p90 30 min · 178 flights · limited
- Mondays76% on time · p90 50 min · 311 flights
- Sundays74% on time · p90 40 min · 297 flights
- Fridays72% on time · p90 40 min · 309 flights
- Thursdays70% on time · p90 55 min · 306 flights
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