Historical on-time performance
Dallas to Birmingham
587 miData through Dec 2025Source: US DOT · BTS
Flights on DAL–BHM arrive on time 76% of the time over the last 12 months.
On-time rate76%arrived within 15 min
p90 delay40 min1 in 10 flights is worse (tail risk)
Cancelled1.2%of scheduled flights
based on 963 flights over the last 12 months. On-time means arriving within 15 minutes (BTS standard).
By airline
How each carrier compares
- Southwest AirlinesOn-time76%Medianon timep9040 minCancel1.2%Flights963
Why flights run late
Delay causes
- Airline23%
- Weather4%
- Air traffic (NAS)17%
- Late aircraft55%
- Security1%
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 DAL → BHM
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 — 88% on time.
- Mornings88% on time · p90 10 min · 614 flights
- Middays79% on time · p90 30 min · 464 flights
- Afternoons71% on time · p90 55 min · 578 flights
- Evenings69% on time · p90 60 min · 286 flights
- Overnights64% on time · p90 55 min · 682 flights
Best day of week
On-time rates are fairly even by day on this route — ranging from 68% to 79% on time.
- Mondays79% on time · p90 30 min · 403 flights
- Wednesdays78% on time · p90 35 min · 380 flights
- Tuesdays77% on time · p90 30 min · 382 flights
- Saturdays74% on time · p90 60 min · 274 flights
- Sundays73% on time · p90 45 min · 390 flights
- Thursdays71% on time · p90 40 min · 396 flights
- Fridays68% on time · p90 50 min · 399 flights
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