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

Boston, MA (BOS) to Charleston, SC (CHS) flight delay odds

75.7% of 1,130 official scheduled BOS-to-CHS flights arrived on time; 13.9% arrived at least 30 minutes late and 1.8% 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
75.7%arrived on time
13.9%30+ min late
1.8%cancelled
1,130scheduled flights
Based on July 2025–June 2026; on time means arrival less than 15 minutes late.
60+ minutes late8.5%all scheduled flights
120+ minutes late3.1%all scheduled flights
Diverted0.3%did not reach as scheduled
Average arrival+6.9 mincompleted flights

Which departure time was most reliable for BOS to CHS?

Among qualifying BOS-to-CHS departure window results, Early morning had the highest on-time rate: 83.2% of 250 flights. Evening was lowest at 52.4% across 126 flights.

Departure windowFlightsOn time30+ minCancelled
Early morning25083.2%8.8%2.8%
Late morning29882.9%8.7%0.7%
Afternoon45673.2%14.9%1.5%
Evening12652.4%32.5%3.2%

Which weekday was most reliable for BOS to CHS?

Among qualifying BOS-to-CHS weekday results, Wednesday had the highest on-time rate: 83.6% of 134 flights. Sunday was lowest at 71.6% across 197 flights.

DayFlightsOn time30+ minCancelled
Monday16072.5%16.2%3.8%
Tuesday13881.2%12.3%2.2%
Wednesday13483.6%8.2%0.7%
Thursday15474.7%14.9%0.6%
Friday15773.9%12.7%1.9%
Saturday19075.3%17.4%1.1%
Sunday19771.6%13.7%2.0%

Which airline was most reliable for BOS to CHS?

Among qualifying BOS-to-CHS airline results, Republic Airways had the highest on-time rate: 84.3% of 89 flights. JetBlue Airways was lowest at 74.2% across 651 flights.

AirlineFlightsOn time30+ minCancelled
JetBlue Airways65174.2%14.6%1.7%
Delta Air Lines39076.2%13.3%2.3%
Republic Airways8984.3%11.2%0.0%

Which month was most reliable for BOS to CHS?

Among qualifying BOS-to-CHS month results, May 2026 had the highest on-time rate: 85.5% of 124 flights. December 2025 was lowest at 61.6% across 99 flights.

MonthFlightsOn time30+ minCancelled
July 20259366.7%16.1%2.2%
August 20259476.6%11.7%2.1%
September 20259876.5%11.2%0.0%
October 20259983.8%12.1%0.0%
November 20259369.9%15.1%3.2%
December 20259961.6%27.3%0.0%
January 20266870.6%16.2%7.4%
February 20265766.7%15.8%7.0%
March 20268877.3%12.5%3.4%
April 202611381.4%12.4%0.0%
May 202612485.5%10.5%0.0%
June 202610481.7%8.7%1.0%

What drove BOS to CHS delay minutes?

Late aircraft was the largest recorded BOS-to-CHS delay category, accounting for 38.6% of 17,075 BTS-attributed delay minutes during July 2025–June 2026.

Airline36.1%
Late aircraft38.6%
National airspace22.4%
Weather2.9%
Security0.0%
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.