Historical on-time performance
Greenville to Washington
396 miData through May 2026Source: US DOT · BTS
Flights on GSP–DCA arrive on time 63% of the time over the last 12 months.
On-time rate63%arrived within 15 min
p90 delay75 min1 in 10 flights is worse (tail risk)
Cancelled5.6%of scheduled flights
based on 963 flights over the last 12 months. On-time means arriving within 15 minutes (BTS standard).
By airline
How each carrier compares
- PSA AirlinesOn-time63%Medianon timep9075 minCancel5.6%Flights963
Why flights run late
Delay causes
- Airline23%
- Weather7%
- Air traffic (NAS)18%
- Late aircraft52%
- Security1%
Most delay minutes here are attributed to Late aircraft.
When flights don't go
Why flights were cancelled
- Airline6%
- Weather74%
- Air traffic (NAS)19%
- Security2%
Most cancellations here are attributed to Weather. Shares are among 54 cancellations with a reported cause (BTS reports causes from June 2003).
Over time
On-time trend
By season
On-time rate by month
When to fly
Best time to fly GSP → DCA
All airlines · rolling 36 months (2023-06 .. 2026-05).
Best time of day
On-time rates are fairly even by time of day on this route — ranging from 55% to 79% on time.
- Middays79% on time · p90 40 min · 1,080 flights
- Mornings79% on time · p90 35 min · 1,058 flights
- Evenings55% on time · p90 90 min · 758 flights
Best day of week
Saturdays are the most reliable day to fly this route — 83% on time.
- Saturdays83% on time · p90 35 min · 319 flights
- Sundays74% on time · p90 60 min · 427 flights
- Wednesdays72% on time · p90 65 min · 454 flights
- Tuesdays72% on time · p90 55 min · 457 flights
- Fridays71% on time · p90 45 min · 456 flights
- Thursdays69% on time · p90 60 min · 448 flights
- Mondays69% on time · p90 65 min · 456 flights
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