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Route Reliability

Columbus → Baltimore

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

88
Pretty Reliable
WanderNerd Reliability Score
88%
Arrive within 15 minutes
1 min early
Average arrival delay
1.9%
Cancelled
1,055
Flights in the data

Data through May 2026.

Southwest Airlines is the only airline in this data on this route, arriving on time 88% of the time across 1,055 flights. No comparison to make.

What the data says

Morning-you made the right choice.

CMH–BWI flights departing between 3–6 AM arrived on time 98% of the time, versus 64% between 6–9 PM.

Sunday scaries are real for this one.

CMH–BWI flights arrived on time 94% of the time on Tuesdays. On Sundays: 80%.

Flights on this route

The breakdown

On-time by weekday
  • Mon89%(151 flights)
  • Tue94%(147 flights)
  • Wed91%(145 flights)
  • Thu86%(151 flights)
  • Fri88%(149 flights)
  • Sat87%(138 flights)
  • Sun80%(152 flights)
On-time by departure window
  • 3–6 AM98%(235 flights)
  • 6–9 AM96%(146 flights)
  • 9 AM–12 PM94%(171 flights)
  • 12–3 PM87%(122 flights)
  • 3–6 PM79%(273 flights)
  • 6–9 PM64%(86 flights)
On-time trend by month
86%
May

Jun 87% → May 86% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202587%90
July 202585%85
August 202590%90
September 202589%90
October 202595%98
November 202587%90
December 202581%93
January 202691%66
February 202687%67
March 202687%90
April 202692%86
May 202686%88

Same trip, other airports

Keep nerding

Based on 1,055 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.