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Route Reliability

Pittsburgh → Baltimore

PIT–BWI · 210 miles · Pittsburgh International Airport to Baltimore/Washington International Thurgood Marshall Airport

88
Pretty Reliable
WanderNerd Reliability Score
85%
Arrive within 15 minutes
0 min
Average arrival delay
1.3%
Cancelled
1,074
Flights in the data

Data through May 2026.

Southwest Airlines is the only airline in this data on this route, arriving on time 85% of the time across 1,074 flights. No comparison to make.

What the data says

Morning flights do better here.

PIT–BWI flights departing between 6–9 AM arrived on time 97% of the time, versus 61% between 6–9 PM.

Sunday scaries are real for this one.

PIT–BWI flights arrived on time 90% of the time on Wednesdays. On Sundays: 81%.

Flights on this route

The breakdown

On-time by weekday
  • Mon86%(152 flights)
  • Tue89%(156 flights)
  • Wed90%(154 flights)
  • Thu83%(153 flights)
  • Fri85%(153 flights)
  • Sat84%(148 flights)
  • Sun81%(143 flights)
On-time by departure window
  • 3–6 AM96%(178 flights)
  • 6–9 AM97%(186 flights)
  • 9 AM–12 PM95%(236 flights)
  • 12–3 PM85%(110 flights)
  • 3–6 PM70%(267 flights)
  • 6–9 PM61%(82 flights)
On-time trend by month
84%
May

Jun 80% → May 84% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202580%88
July 202576%87
August 202584%88
September 202595%86
October 202589%93
November 202592%86
December 202579%90
January 202685%89
February 202690%78
March 202682%91
April 202689%90
May 202684%93

Same trip, other airports

Keep nerding

Based on 1,074 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.