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Route Reliability

Baltimore → Columbus

BWI–CMH · 337 miles · Baltimore/Washington International Thurgood Marshall Airport to John Glenn Columbus International Airport

78
Usually Fine
WanderNerd Reliability Score
79%
Arrive within 15 minutes
9 min
Average arrival delay
2.0%
Cancelled
1,056
Flights in the data

Data through May 2026.

Southwest Airlines is the only airline in this data on this route, arriving on time 79% of the time across 1,056 flights. No comparison to make.

What the data says

Morning-you made the right choice.

BWI–CMH flights departing between 6–9 AM arrived on time 97% of the time, versus 67% between 9 PM–12 AM.

Sunday scaries are real for this one.

BWI–CMH flights arrived on time 87% of the time on Tuesdays and just 69% on Sundays. That gap is worth planning around.

Slipping a little lately.

BWI–CMH flights arrived on time 78% 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
  • Mon77%(152 flights)
  • Tue87%(149 flights)
  • Wed85%(144 flights)
  • Thu77%(148 flights)
  • Fri80%(150 flights)
  • Sat77%(137 flights)
  • Sun69%(153 flights)
On-time by departure window
  • 6–9 AM97%(34 flights)
  • 9 AM–12 PM90%(328 flights)
  • 12–3 PM88%(33 flights)
  • 3–6 PM71%(254 flights)
  • 6–9 PM79%(160 flights)
  • 9 PM–12 AM67%(224 flights)
On-time trend by month
80%
May

Jun 70% → May 80% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202570%89
July 202563%83
August 202587%89
September 202588%90
October 202576%97
November 202583%90
December 202577%95
January 202681%67
February 202688%67
March 202669%91
April 202685%87
May 202680%88

Same trip, other airports

Keep nerding

Based on 1,056 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.