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WanderNerd

Route Reliability

Colorado Springs → Baltimore

COSBWI · 1,503 miles · Colorado Springs Airport to Baltimore/Washington International Thurgood Marshall Airport

79
Usually Fine
WanderNerd Reliability Score
81%
Arrive within 15 minutes
3 min
Average arrival delay
0.6%
Cancelled
158
Flights in the data

Data through May 2026.

Southwest Airlines is the only airline in this data on this route, arriving on time 81% of the time across 158 flights. No comparison to make.

What the data says

The 3–6 PM departure wins.

COS–BWI flights departing between 3–6 PM arrived on time 88% of the time, versus 63% between 12–3 PM.

Tuesdays have been rough.

COS–BWI flights arrived on time 96% of the time on Fridays and just 64% on Tuesdays. That gap is worth planning around.

Trending in the right direction.

COS–BWI flights arrived on time 88% of the time over the last three months in the data, compared with 72% in the three months before that.

Flights on this route

The breakdown

On-time by weekday
  • Mon88%(24 flights)
  • Tue64%(25 flights)
  • Wed77%(22 flights)
  • Thu95%(20 flights)
  • Fri96%(24 flights)
  • Sat86%(14 flights)
  • Sun68%(25 flights)
On-time by departure window
  • 6–9 AM(9 flights)
  • 9 AM–12 PM86%(79 flights)
  • 12–3 PM63%(41 flights)
  • 3–6 PM88%(25 flights)
On-time trend by month
73%
Dec

Jun 76% → Dec 73% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202576%29
July 202566%29
August 202576%25
September 202596%26
October 202596%26
December 202573%11

Based on 158 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.