Historical on-time performance
Baltimore to Miami
946 miData through Dec 2025Source: US DOT · BTS
Flights on BWI–MIA arrive on time 73% of the time over the last 12 months.
On-time rate73%arrived within 15 min
p90 delay50 min1 in 10 flights is worse (tail risk)
Cancelled1.5%of scheduled flights
based on 1,999 flights over the last 12 months. On-time means arriving within 15 minutes (BTS standard).
By airline
How each carrier compares
Too close to call — no single carrier is clearly more on-time here.
- American AirlinesOn-time75%Medianon timep9045 minCancel1.7%Flights573
- Envoy AirOn-time80%Medianon timep9080 minCancel0.0%Flights65
- Frontier AirlinesOn-time68%Medianon timep90110 minCancel2.2%Flights93
- Southwest AirlinesOn-time72%Medianon timep9055 minCancel1.4%Flights1,238
- Spirit AirlinesOn-time80%Medianon timep9040 minCancel0.0%Flights30
Why flights run late
Delay causes
- Airline34%
- Weather8%
- Air traffic (NAS)25%
- Late aircraft32%
- Security1%
Most delay minutes here are attributed to Airline.
Over time
On-time trend
By season
On-time rate by month
When to fly
Best time to fly BWI → MIA
All airlines · rolling 36 months (2023-01 .. 2025-12).
Best time of day
Mornings are the most reliable time of day to fly this route — 85% on time.
- Mornings85% on time · p90 20 min · 2,739 flights
- Middays75% on time · p90 40 min · 1,132 flights
- Afternoons64% on time · p90 80 min · 811 flights
- Evenings61% on time · p90 85 min · 1,744 flights
- Overnights58% on time · p90 85 min · 753 flights
Best day of week
On-time rates are fairly even by day on this route — ranging from 68% to 78% on time.
- Tuesdays78% on time · p90 45 min · 945 flights
- Wednesdays75% on time · p90 50 min · 933 flights
- Mondays73% on time · p90 40 min · 1,047 flights
- Fridays71% on time · p90 50 min · 1,040 flights
- Saturdays71% on time · p90 60 min · 1,118 flights
- Thursdays70% on time · p90 60 min · 1,033 flights
- Sundays68% on time · p90 65 min · 1,063 flights
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