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Route Reliability

Baltimore → Raleigh–Durham

BWI–RDU · 256 miles · Baltimore/Washington International Thurgood Marshall Airport to Raleigh–Durham International Airport

79
Usually Fine
WanderNerd Reliability Score
81%
Arrive within 15 minutes
5 min
Average arrival delay
2.4%
Cancelled
1,814
Flights in the data

Data through May 2026.

Airlines on this route

  • Southwest Airlines81% on time · 1,793 flights
  • Spirit Airlines95% on time · 21 flights

Too little history on this route to call a winner. We rank airlines only after 100 flights each.

What the data says

Morning flights do better here.

BWI–RDU flights departing between 6–9 AM arrived on time 95% of the time, versus 70% between 9 PM–12 AM.

Sunday scaries are real for this one.

BWI–RDU flights arrived on time 85% of the time on Tuesdays. On Sundays: 71%.

Flights on this route

The breakdown

On-time by weekday
  • Mon80%(268 flights)
  • Tue85%(254 flights)
  • Wed84%(245 flights)
  • Thu83%(276 flights)
  • Fri80%(268 flights)
  • Sat85%(194 flights)
  • Sun71%(266 flights)
On-time by departure window
  • 6–9 AM95%(437 flights)
  • 9 AM–12 PM90%(199 flights)
  • 12–3 PM80%(263 flights)
  • 3–6 PM75%(338 flights)
  • 6–9 PM70%(250 flights)
  • 9 PM–12 AM70%(284 flights)
On-time trend by month
83%
May

Jun 72% → May 83% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202572%165
July 202572%162
August 202580%147
September 202589%142
October 202578%167
November 202582%154
December 202580%158
January 202687%120
February 202686%116
March 202679%145
April 202687%146
May 202683%149

Same trip, other airports

Keep nerding

Based on 1,814 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.