How often are GSP to ATL flights on time?

Flights from Greenville (GSP) to Atlanta (ATL) arrive on time 92% of the time across 19,940 flights of official data.

Which airline is most reliable on the GSP to ATL route?

Delta Air Lines has the best on-time record on this route at 93% across 16,203 flights.

Route reliability

Flights from Greenville to Atlanta arrive on time 92% of the time across 19,940 flights. Here’s how each airline really performs.

0.0

On-time rate

19,940 flights

Airline	On-time	Flights
Delta Air Lines	93%	16,203
Southwest Airlines	92%	3,737

On-time = arrived within 15 minutes of schedule, per BTS TranStats. Compare the reverse leg ATL → GSP.

How to Pick a Reliable Flight (Not Just the Cheapest)

A practical checklist for booking the flight that gets you there — not just the cheap one.

Nonstop vs. Connecting Flights: The Reliability Trade-off

A stop multiplies the ways a trip can break. When it's worth it — and how to de-risk it.

Do Morning Flights Really Have Fewer Delays?

Yes — and there's a clear reason. How delays snowball through the day.

Are Some Airlines Really More Reliable Than Others?

The reliability gap between airlines is real — here's what actually drives it.

Score real GSP–ATL flights on reliability, weather, and connection safety — not just price.

Opens a partner site; we may earn a commission if you book there. It's a general fare search — nothing on it is scored.