Skip to content
WanderNerd
Check a flight

Route Reliability

Baltimore → Houston

BWI–HOU · 1,246 miles · Baltimore/Washington International Thurgood Marshall Airport to William P. Hobby Airport

78
Usually Fine
WanderNerd Reliability Score
77%
Arrive within 15 minutes
5 min
Average arrival delay
1.6%
Cancelled
1,464
Flights in the data

Data through May 2026.

Southwest Airlines is the only airline in this data on this route, arriving on time 77% of the time across 1,464 flights. No comparison to make.

What the data says

Morning-you made the right choice.

BWI–HOU flights departing between 6–9 AM arrived on time 91% of the time, versus 60% between 9 PM–12 AM.

Thursdays have been rough.

BWI–HOU flights arrived on time 85% of the time on Tuesdays and just 70% on Thursdays. That gap is worth planning around.

Recent months have been rougher.

BWI–HOU flights arrived on time 73% of the time over the last three months in the data, compared with 82% in the three months before that.

Flights on this route

The breakdown

On-time by weekday
  • Mon78%(204 flights)
  • Tue85%(202 flights)
  • Wed80%(199 flights)
  • Thu70%(200 flights)
  • Fri77%(200 flights)
  • Sat75%(205 flights)
  • Sun73%(230 flights)
On-time by departure window
  • 6–9 AM91%(355 flights)
  • 9 AM–12 PM83%(266 flights)
  • 12–3 PM77%(155 flights)
  • 3–6 PM75%(206 flights)
  • 6–9 PM63%(317 flights)
  • 9 PM–12 AM60%(141 flights)
On-time trend by month
70%
May

Jun 67% → May 70% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202567%122
July 202571%123
August 202572%127
September 202586%125
October 202577%130
November 202583%125
December 202574%129
January 202685%100
February 202687%97
March 202675%118
April 202675%120
May 202670%124

Same trip, other airports

Keep nerding

Based on 1,464 historical flights, because apparently we checked. Historical flight data: U.S. Bureau of Transportation Statistics, June 2025 – May 2026. Data through May 2026. How we calculate this.