ON TIMEBOARD

GSP → DCA on time

Greenville-Spartanburg (Greer, SC) to Washington Reagan National (Washington, DC). Every scheduled flight, September 2025 to August 2026.

On time
61%
arrived < 15 min late
Cancelled
5.5%
999 flights
Typical arrival
+2 min
median vs schedule
When late
+94 min
average delay
Flights / day
3
1 airline

61% of flights from Greer to Washington arrived on time over the past 12 months. That is worse than the typical U.S. route. The 7 a.m. departures ran on time 71% of the time; the 7 p.m. ones 42%. 19% of flights arrived more than an hour late or not at all.

How late?

The on-time rate treats a flight 20 minutes late the same as one 5 hours late. Here's the split for GSP → DCA: when a flight was late, it was under 45 minutes late 50% of the time. About 1 in 8 flights landed an hour or more late, and 1 in 28 three hours or more; 5.5% were cancelled outright.

Share of all 999 scheduled flights, past 12 months, by arrival time against schedule.

By airline

AirlineFlightsOn timeCancelledTypical arrival1h+ lateAvg when lateOperated by
American Airlines99961%5.5%+2 min13.2%+94 minPSA Airlines 95%, Republic Airways 5%

Airline = the name on the ticket. Regional flights (e.g. "Delta Connection") count under the ticketing airline, and the operator is listed.

Best time of day to fly

On-time rate by scheduled departure hour (local time at GSP). Delays build through the day as late planes knock on, so early flights usually do best.

30%65%100%6 a.m. departures: too few flights (98 flights)6a7 a.m. departures: 71% on time (265 flights)717a8 a.m. departures: too few flights8a9 a.m. departures: too few flights (2 flights)9a10 a.m. departures: 69% on time (150 flights)6910a11 a.m. departures: too few flights (77 flights)11anoon departures: too few flights (60 flights)12p1 p.m. departures: too few flights (41 flights)1p2 p.m. departures: too few flights2p3 p.m. departures: too few flights3p4 p.m. departures: too few flights (7 flights)4p5 p.m. departures: too few flights (25 flights)5p6 p.m. departures: too few flights (1 flights)6p7 p.m. departures: 42% on time (215 flights)427p8 p.m. departures: too few flights (58 flights)8p
GSP → DCA, share of flights arriving on time, by departure hour. Hours with under 100 flights are greyed out.
82%+ on time76–82%68–76%under 68%too few flights

Last flight of the day

On GSP → DCA, each airline's last flight of the day was cancelled 9.7% of the time, against 3.1% for its earlier flights (3.1× as often). It arrived 3+ hours late 3.6% of the time (earlier flights: 3.6%). It matters more than the numbers suggest. Miss an earlier flight and there's another one that evening; miss the last one and you're usually waiting until morning.

AirlineLast departureLast: cancelledLast: 3h+ lateEarlier: cancelledNext morning
American Airlines7:14 p.m.9.7%3.6%3.1%first flight 6:35 a.m.

Last flight = the airline's last scheduled departure on this route that day, on days it flies the route at least twice; past 12 months. Times are typical scheduled times over the latest three months.

If you need to be in DCA tonight, book an earlier flight so there's a backup if it's cancelled.

By month

Each calendar month pooled over 2023–2026. Best: October (84%). Worst: July (57%).

40%70%100%Jan: 62% on time (233 flights)62JanFeb: 63% on time (227 flights)63FebMar: 65% on time (259 flights)65MarApr: 76% on time (248 flights)76AprMay: 70% on time (261 flights)70MayJun: 63% on time (256 flights)63JunJul: 57% on time (260 flights)57JulAug: 69% on time (235 flights)69AugSep: 78% on time (261 flights)78SepOct: 84% on time (267 flights)84OctNov: 79% on time (248 flights)79NovDec: 68% on time (242 flights)68Dec

By day of week

DayFlightsOn timeCancelled
Monday15160%7.3%
Tuesday15063%6.0%
Wednesday14859%3.4%
Thursday14554%2.8%
Friday14861%7.4%
Saturday10872%3.7%
Sunday14960%7.4%

Why flights were late

Share of delay minutes on flights 15+ minutes late, as reported to BTS by the airlines.

Late inbound plane 42%Airline (crew, maintenance, ops) 27%Air traffic & airport (NAS) 19%Severe weather 12%

Cancellations: weather 44 · air traffic/airport 8 · airline 2 · security 1

Month by month

Not enough months with data to draw a trend.

Flight numbers on this route

Regular flights with at least 120 scheduled trips in the past year. Sorted by departure time.

FlightDepartsFlightsOn timeCancelledTypical arrivalOperated by
AA 50317:38 a.m.36372%3.0%−4 minPSA Airlines

Worst days in the past year

DateFlightsOn timeCancelled
Jan 27, 202630%2
Mar 11, 202630%0
Aug 3, 202630%1
May 27, 202630%0
Jul 21, 202630%2

Nearby airport alternatives

Other ways to make the same trip, using airports within 60 miles of Greer or Washington. GSP → BWI has been 27 points more reliable.

RouteFlightsOn timeCancelled
GSP → DCA (this route)99961%5.5%
GSP → BWI Greenville-Spartanburg to Baltimore/Washington71988%1.7%
GSP → IAD Greenville-Spartanburg to Washington Dulles85683%1.8%
AVL → DCA Asheville to Washington Reagan National51855%7.3%

Questions

How often are flights from GSP to DCA on time?

61% of 999 scheduled flights from Greer, SC to Washington, DC arrived within 15 minutes of schedule between September 2025 and August 2026. 5.5% were cancelled.

What is the best time of day to fly GSP to DCA?

Flights scheduled to leave at 7 a.m. were the most reliable (71% on time). The 7 p.m. departures were the least (42%).

What month has the most delays from GSP to DCA?

July (57% on time). The best month is October (84%), over 2023–2026.

Is the last flight of the day from GSP to DCA more likely to be cancelled?

Yes. Each airline's last GSP–DCA flight of the day was cancelled 9.7% of the time over the past year, against 3.1% for its earlier flights. If the last flight is cancelled, the next one is usually the following morning.

Related

Domestic flights by the airlines that report to the U.S. DOT, plus their regional partners. "On time" means arriving less than 15 minutes after schedule; cancelled and diverted flights count as not on time. Past performance is a guide, not a forecast. Method.