Historical on-time performance
Houston to Baltimore
1,246 miData through May 2026Source: US DOT · BTS
Flights on HOU–BWI arrive on time 74% of the time over the last 12 months.
On-time rate74%arrived within 15 min
p90 delay40 min1 in 10 flights is worse (tail risk)
Cancelled1.8%of scheduled flights
based on 1,462 flights over the last 12 months. On-time means arriving within 15 minutes (BTS standard).
By airline
How each carrier compares
- Southwest AirlinesOn-time74%Medianon timep9040 minCancel1.8%Flights1,462
Why flights run late
Delay causes
- Airline34%
- Weather6%
- Air traffic (NAS)16%
- Late aircraft43%
- Security1%
Most delay minutes here are attributed to Late aircraft.
When flights don't go
Why flights were cancelled
- Airline8%
- Weather77%
- Air traffic (NAS)15%
- Security0%
Most cancellations here are attributed to Weather. Shares are among 26 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 → 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 — 92% on time.
- Mornings92% on time · p90 10 min · 1,507 flights
- Middays82% on time · p90 25 min · 782 flights
- Afternoons69% on time · p90 45 min · 585 flights
- Evenings67% on time · p90 50 min · 751 flights
- Overnights65% on time · p90 55 min · 671 flights
Best day of week
On-time rates are fairly even by day on this route — ranging from 75% to 84% on time.
- Tuesdays84% on time · p90 20 min · 591 flights
- Wednesdays82% on time · p90 20 min · 588 flights
- Thursdays79% on time · p90 25 min · 606 flights
- Saturdays77% on time · p90 35 min · 581 flights
- Fridays77% on time · p90 35 min · 614 flights
- Mondays76% on time · p90 35 min · 609 flights
- Sundays75% on time · p90 35 min · 707 flights
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