Historical on-time performance
Chicago to Nashville
395 miData through May 2026Source: US DOT · BTS
Flights on MDW–BNA arrive on time 79% of the time over the last 12 months.
On-time rate79%arrived within 15 min
p90 delay35 min1 in 10 flights is worse (tail risk)
Cancelled1.3%of scheduled flights
based on 1,905 flights over the last 12 months. On-time means arriving within 15 minutes (BTS standard).
By airline
How each carrier compares
- Southwest AirlinesOn-time79%Medianon timep9035 minCancel1.3%Flights1,905
Why flights run late
Delay causes
- Airline28%
- Weather2%
- Air traffic (NAS)18%
- Late aircraft52%
- Security0%
Most delay minutes here are attributed to Late aircraft.
When flights don't go
Why flights were cancelled
- Airline4%
- Weather96%
- Air traffic (NAS)0%
- Security0%
Most cancellations here are attributed to Weather. Shares are among 24 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 → BNA
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 — 93% on time.
- Mornings93% on time · p90 5 min · 2,118 flights
- Middays83% on time · p90 25 min · 1,043 flights
- Afternoons76% on time · p90 40 min · 860 flights
- Evenings70% on time · p90 45 min · 994 flights
- Overnights68% on time · p90 60 min · 879 flights
Best day of week
On-time rates are fairly even by day on this route — ranging from 78% to 86% on time.
- Tuesdays86% on time · p90 25 min · 823 flights
- Wednesdays84% on time · p90 25 min · 820 flights
- Saturdays81% on time · p90 25 min · 628 flights
- Mondays80% on time · p90 35 min · 902 flights
- Sundays79% on time · p90 40 min · 909 flights
- Fridays79% on time · p90 30 min · 910 flights
- Thursdays78% on time · p90 35 min · 902 flights
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