Historical on-time performance
Houston to Birmingham
570 miData through Dec 2025Source: US DOT · BTS
Flights on HOU–BHM arrive on time 81% of the time over the last 12 months.
On-time rate81%arrived within 15 min
p90 delay30 min1 in 10 flights is worse (tail risk)
Cancelled0.6%of scheduled flights
based on 462 flights over the last 12 months. On-time means arriving within 15 minutes (BTS standard).
By airline
How each carrier compares
- Southwest AirlinesOn-time81%Medianon timep9030 minCancel0.6%Flights462
Why flights run late
Delay causes
- Airline39%
- Weather5%
- Air traffic (NAS)6%
- Late aircraft50%
- Security0%
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 HOU → BHM
All airlines · rolling 36 months (2023-01 .. 2025-12).
Best time of day
Middays are the most reliable time of day to fly this route — 85% on time.
- Middays85% on time · p90 20 min · 773 flights
- Evenings75% on time · p90 40 min · 173 flights · limited
- Afternoons73% on time · p90 45 min · 301 flights
- Overnights68% on time · p90 45 min · 307 flights
Best day of week
On-time rates are fairly even by day on this route — ranging from 74% to 85% on time.
- Tuesdays85% on time · p90 25 min · 201 flights
- Saturdays80% on time · p90 35 min · 231 flights
- Thursdays80% on time · p90 35 min · 201 flights
- Wednesdays77% on time · p90 35 min · 202 flights
- Mondays76% on time · p90 35 min · 202 flights
- Sundays76% on time · p90 35 min · 321 flights
- Fridays74% on time · p90 35 min · 202 flights
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