Historical on-time performance
Greenville to Washington
396 miData through Dec 2025Source: US DOT · BTS
Flights on GSP–DCA arrive on time 66% of the time over the last 12 months.
On-time rate66%arrived within 15 min
p90 delay75 min1 in 10 flights is worse (tail risk)
Cancelled5.9%of scheduled flights
based on 983 flights over the last 12 months. On-time means arriving within 15 minutes (BTS standard).
By airline
How each carrier compares
- PSA AirlinesOn-time66%Medianon timep9075 minCancel5.9%Flights983
Why flights run late
Delay causes
- Airline31%
- Weather3%
- Air traffic (NAS)14%
- Late aircraft52%
- Security0%
Most delay minutes here are attributed to Late aircraft.
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 (2023-01 .. 2025-12).
Best time of day
On-time rates are fairly even by time of day on this route — ranging from 60% to 86% on time.
- Afternoons86% on time · p90 5 min · 57 flights · limited
- Middays83% on time · p90 30 min · 1,084 flights
- Mornings81% on time · p90 25 min · 1,047 flights
- Evenings60% on time · p90 85 min · 798 flights
Best day of week
Saturdays are the most reliable day to fly this route — 86% on time.
- Saturdays86% on time · p90 20 min · 319 flights
- Sundays77% on time · p90 55 min · 415 flights
- Wednesdays76% on time · p90 60 min · 457 flights
- Tuesdays75% on time · p90 50 min · 460 flights
- Thursdays74% on time · p90 55 min · 446 flights
- Mondays74% on time · p90 60 min · 461 flights
- Fridays73% on time · p90 40 min · 455 flights
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