Historical on-time performance
Atlanta to Baltimore
Flights on ATL–BWI arrive on time 72% of the time over the last 12 months.
based on 5,324 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.
- Southwest AirlinesOn-time76%Medianon timep9045 minCancel2.5%Flights1,577
- Delta Air LinesOn-time74%Medianon timep9050 minCancel2.1%Flights2,838
- Spirit AirlinesOn-time61%Median5 minp9080 minCancel1.6%Flights61
- Frontier AirlinesOn-time58%Median5 minp9085 minCancel2.5%Flights848
Why flights run late
Delay causes
- Airline39%
- Weather5%
- Air traffic (NAS)20%
- Late aircraft35%
- Security0%
Most delay minutes here are attributed to Airline.
When flights don't go
Why flights were cancelled
- Airline45%
- Weather46%
- Air traffic (NAS)9%
- Security0%
Most cancellations here are attributed to Weather. Shares are among 120 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 ATL → BWI
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 — 87% on time.
- Mornings87% on time · p90 15 min · 4,185 flights
- Middays82% on time · p90 30 min · 3,896 flights
- Afternoons71% on time · p90 55 min · 3,387 flights
- Evenings65% on time · p90 75 min · 2,750 flights
- Overnights62% on time · p90 75 min · 3,535 flights
Best day of week
On-time rates are fairly even by day on this route — ranging from 67% to 81% on time.
- Wednesdays81% on time · p90 30 min · 2,433 flights
- Tuesdays79% on time · p90 40 min · 2,439 flights
- Thursdays75% on time · p90 45 min · 2,717 flights
- Saturdays75% on time · p90 50 min · 2,118 flights
- Fridays73% on time · p90 50 min · 2,703 flights
- Mondays72% on time · p90 55 min · 2,687 flights
- Sundays67% on time · p90 70 min · 2,656 flights
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