Historical on-time performance
Houston to Birmingham
570 miData through May 2026Source: US DOT · BTS
Flights on HOU–BHM arrive on time 75% of the time over the last 12 months.
On-time rate75%arrived within 15 min
p90 delay35 min1 in 10 flights is worse (tail risk)
Cancelled0.4%of scheduled flights
based on 459 flights over the last 12 months. On-time means arriving within 15 minutes (BTS standard).
By airline
How each carrier compares
- Southwest AirlinesOn-time75%Medianon timep9035 minCancel0.4%Flights459
Why flights run late
Delay causes
- Airline31%
- Weather3%
- Air traffic (NAS)8%
- Late aircraft58%
- Security0%
Most delay minutes here are attributed to Late aircraft.
When flights don't go
Why flights were cancelled
- Airline50%
- Weather50%
- Air traffic (NAS)0%
- Security0%
Most cancellations here are attributed to Airline. Shares are among 2 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 HOU → BHM
All airlines · rolling 36 months (2023-06 .. 2026-05).
Best time of day
Middays are the most reliable time of day to fly this route — 86% on time.
- Middays86% on time · p90 20 min · 750 flights
- Evenings77% on time · p90 40 min · 168 flights · limited
- Afternoons69% on time · p90 50 min · 338 flights
- Overnights66% on time · p90 45 min · 254 flights
Best day of week
On-time rates are fairly even by day on this route — ranging from 73% to 86% on time.
- Tuesdays86% on time · p90 20 min · 187 flights · limited
- Thursdays78% on time · p90 35 min · 190 flights · limited
- Saturdays78% on time · p90 35 min · 249 flights
- Wednesdays78% on time · p90 30 min · 188 flights · limited
- Mondays77% on time · p90 40 min · 188 flights · limited
- Fridays75% on time · p90 35 min · 191 flights · limited
- Sundays73% on time · p90 35 min · 318 flights
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