BTS DATA COMPLETE THROUGH JUNE 2026HISTORICAL ODDS · NOT LIVE FLIGHT STATUS
DelayOddsKnow the route before you book
CHS→BWI

Charleston, SC (CHS) to Baltimore, MD (BWI) flight delay odds

80.0% of 1,240 official scheduled CHS-to-BWI flights arrived on time; 9.6% arrived at least 30 minutes late and 1.7% were cancelled during July 2025–June 2026.

Source: U.S. Bureau of Transportation Statistics · Reporting window: July 2025–June 2026 · Updated September 16, 2026

HISTORICAL ROUTE SIGNALGenerally reliable
80.0%arrived on time
9.6%30+ min late
1.7%cancelled
1,240scheduled flights
Based on July 2025–June 2026; on time means arrival less than 15 minutes late.
60+ minutes late4.0%all scheduled flights
120+ minutes late1.9%all scheduled flights
Diverted0.3%did not reach as scheduled
Average arrival+3.4 mincompleted flights

Which departure time was most reliable for CHS to BWI?

Among qualifying CHS-to-BWI departure window results, Early morning had the highest on-time rate: 92.3% of 365 flights. Evening was lowest at 69.5% across 374 flights.

Departure windowFlightsOn time30+ minCancelled
Early morning36592.3%3.6%1.1%
Late morning21785.3%6.9%1.4%
Afternoon28473.9%11.6%1.1%
Evening37469.5%15.5%2.9%

Which weekday was most reliable for CHS to BWI?

Among qualifying CHS-to-BWI weekday results, Wednesday had the highest on-time rate: 87.4% of 159 flights. Monday was lowest at 74.7% across 194 flights.

DayFlightsOn time30+ minCancelled
Monday19474.7%12.4%1.5%
Tuesday16686.1%5.4%0.6%
Wednesday15987.4%8.8%1.3%
Thursday18580.0%10.3%0.5%
Friday19574.9%11.3%2.6%
Saturday13683.1%4.4%1.5%
Sunday20577.1%12.2%3.4%

Which airline was most reliable for CHS to BWI?

Only Southwest Airlines met the CHS-to-BWI airline threshold: 80.2% of 1,228 scheduled flights arrived on time during July 2025–June 2026.

AirlineFlightsOn time30+ minCancelled
Southwest Airlines1,22880.2%9.3%1.7%
Spirit Airlines1258.3%41.7%0.0%

Which month was most reliable for CHS to BWI?

Among qualifying CHS-to-BWI month results, September 2025 had the highest on-time rate: 88.9% of 90 flights. July 2025 was lowest at 67.5% across 117 flights.

MonthFlightsOn time30+ minCancelled
July 202511767.5%17.1%5.1%
August 20259980.8%13.1%1.0%
September 20259088.9%5.6%0.0%
October 202511879.7%9.3%0.0%
November 202510383.5%6.8%1.9%
December 202510280.4%7.8%2.0%
January 20269685.4%4.2%5.2%
February 20268175.3%7.4%3.7%
March 202610579.0%10.5%1.9%
April 202610981.7%3.7%0.0%
May 202611381.4%10.6%0.0%
June 202610778.5%16.8%0.0%

What drove CHS to BWI delay minutes?

Late aircraft was the largest recorded CHS-to-BWI delay category, accounting for 50.6% of 12,019 BTS-attributed delay minutes during July 2025–June 2026.

Airline24.5%
Late aircraft50.6%
National airspace22.1%
Weather2.4%
Security0.4%
This is historical evidence, not a forecast.

Weather, schedules and operations change. For a trip you have already booked, use the airline or airport for live status.