GSP to ATL flight delays & on-time performance
Nonstop flights from Greenville-Spartanburg International Airport to Hartsfield Jackson Atlanta International Airport · 153 miles · Aug 2025 – Jul 2026
No FAA-reported ground stops or delays at GSP or ATL right now. Individual flights can still be delayed by the airline; check with your airline for your flight.
Key facts
- Flights from Greer (GSP) to Atlanta (ATL) arrived on time 90% of the time in Aug 2025 – Jul 2026, better than the 78% national average.
- 1.6% were cancelled, and 5% arrived an hour or more late.
- Delta Air Lines is the only airline reporting nonstop flights on this route.
- Departures scheduled around 5am did best (97% on time); around 7pm did worst (83%).
- Wednesday was the most reliable day to fly (94% on time) and Sunday the least (86%).
- The largest source of delay minutes was late-arriving aircraft (44%).
Which airline is most on time from GSP to ATL?
Ranked by on-time arrival rate. Regional airlines fly under their partner's brand (e.g. SkyWest for Delta Connection or United Express).
| Airline | On time | Cancelled | Avg delay | 1 hr+ late | Flights |
|---|---|---|---|---|---|
| Delta Air Lines | 90% | 1.6% | 9 min | 4.6% | 2,819 |
Best time of day to fly
On-time arrival rate by scheduled departure hour (local time).
- 5am97%344 flights
- 6am94%364 flights
- 7am93%137 flights
- 8am92%217 flights
- 9am90%42 flights
- 10am93%324 flights
- 11am89%183 flights
- 12pm92%147 flights
- 1pm86%171 flights
- 2pm93%93 flights
- 3pm83%223 flights
- 4pm84%52 flights
- 5pm83%320 flights
- 7pm83%171 flights
Best day of the week
On-time arrival rate by day of departure.
- Monday89%1.4% cancelled
- Tuesday90%1.0% cancelled
- Wednesday94%0.3% cancelled
- Thursday93%0.2% cancelled
- Friday89%0.5% cancelled
- Saturday89%3.0% cancelled
- Sunday86%5.2% cancelled
On-time trend by month
Why flights are late
Share of delay minutes by cause, as reported by airlines to the DOT.
- Late-arriving aircraft44%
- Airline (crew, maintenance, cleaning, fueling)31%
- Air traffic control & airport congestion21%
- Extreme weather4%
- Security0%
Why flights are cancelled
Share of cancellations by reason.
- Airline (crew, maintenance, cleaning, fueling)59%
- Extreme weather41%
- Air traffic control & airport congestion0%
- Security0%
GSP to ATL: common questions
- How often are GSP to ATL flights on time?
- 90% of flights arrived less than 15 minutes late in Aug 2025 – Jul 2026, compared with 78% for all US flights.
- How often are flights from Greer to Atlanta cancelled?
- 1.6% of scheduled flights were cancelled (46 of 2,819).
- How long are typical delays?
- Across all flights the average arrival delay was 9 min (early arrivals count as zero). Flights that were late arrived 85 min behind schedule on average, and 4.6% of flights were an hour or more late.
- How long is taxi time at GSP?
- Flights on this route spent 15 min taxiing from the gate to takeoff on average.
Related routes
Return trip: ATL to GSP — 84% on time
More flights from Greer
Data: U.S. DOT Bureau of Transportation Statistics, Aug 2025 – Jul 2026 (12 months). Latest month published by BTS: July 2026. Route: GSP → ATL, nonstop flights by US airlines that report to the DOT. How we calculate this.