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

Baltimore, MD (BWI) to Greer, SC (GSP) flight delay odds

81.1% of 720 official scheduled BWI-to-GSP flights arrived on time; 11.7% arrived at least 30 minutes late and 1.2% 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 SIGNALLower disruption
81.1%arrived on time
11.7%30+ min late
1.2%cancelled
720scheduled flights
Based on July 2025–June 2026; on time means arrival less than 15 minutes late.
60+ minutes late6.7%all scheduled flights
120+ minutes late3.2%all scheduled flights
Diverted0.0%did not reach as scheduled
Average arrival+5.4 mincompleted flights

Which departure time was most reliable for BWI to GSP?

Among qualifying BWI-to-GSP departure window results, Early morning had the highest on-time rate: 91.8% of 245 flights. Evening was lowest at 71.1% across 336 flights.

Departure windowFlightsOn time30+ minCancelled
Early morning24591.8%2.4%0.8%
Late morning12090.0%6.7%0.0%
Evening33671.1%19.9%1.5%

Which weekday was most reliable for BWI to GSP?

Among qualifying BWI-to-GSP weekday results, Wednesday had the highest on-time rate: 85.6% of 104 flights. Sunday was lowest at 76.0% across 104 flights.

DayFlightsOn time30+ minCancelled
Monday10476.0%15.4%0.0%
Tuesday10683.0%9.4%0.0%
Wednesday10485.6%10.6%0.0%
Thursday10383.5%10.7%0.0%
Friday10482.7%12.5%1.0%
Saturday9581.1%10.5%3.2%
Sunday10476.0%12.5%4.8%

Which airline was most reliable for BWI to GSP?

Only Southwest Airlines met the BWI-to-GSP airline threshold: 81.1% of 720 scheduled flights arrived on time during July 2025–June 2026.

AirlineFlightsOn time30+ minCancelled
Southwest Airlines72081.1%11.7%1.2%

Which month was most reliable for BWI to GSP?

Among qualifying BWI-to-GSP month results, September 2025 had the highest on-time rate: 91.7% of 60 flights. June 2026 was lowest at 66.7% across 60 flights.

MonthFlightsOn time30+ minCancelled
July 20256271.0%24.2%1.6%
August 20256285.5%9.7%0.0%
September 20256091.7%1.7%0.0%
October 20255887.9%3.4%0.0%
November 20255689.3%7.1%0.0%
December 20256070.0%13.3%0.0%
January 20266282.3%3.2%9.7%
February 20265680.4%12.5%1.8%
March 20266280.6%14.5%0.0%
April 20266086.7%11.7%0.0%
May 20266282.3%12.9%0.0%
June 20266066.7%25.0%1.7%

What drove BWI to GSP delay minutes?

Late aircraft was the largest recorded BWI-to-GSP delay category, accounting for 52.7% of 9,223 BTS-attributed delay minutes during July 2025–June 2026.

Airline32.4%
Late aircraft52.7%
National airspace8.3%
Weather6.5%
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.