Which airline is most reliable for DTW (Detroit) to GSP (Greenville)?

The most reliable airline on the DTW to GSP route is Endeavor Air, with an on-time arrival rate of 86%.

How often are flights delayed from DTW to GSP?

About 22% of flights from DTW to GSP experience delays. 78% arrive on time.

What's the average delay on DTW to GSP flights?

When flights from DTW to GSP are delayed, the average delay is approximately 78 minutes.

Is a short connection safe after a DTW to GSP flight?

With 78% of DTW to GSP flights arriving on time and an average delay of 78 minutes when late, a connection under 60 minutes at GSP is risky. We recommend at least 75-90 minutes for domestic connections after this route.

DTW → GSP

DTW (Detroit) to GSP (Greenville)

DTW (Detroit) to GSP (Greenville) flights arrive on time 78% of the time. The most reliable airline on this route is Endeavor Air at 86%. The average delay is 78 minutes. Delays on this route are most often caused by the airline (crew, maintenance, or boarding).

Source: Bureau of Transportation Statistics. Updated August 2026.

DTW → GSP on-time performance by month

JanFebMarAprMayJunJulAugSepOctNovDec

Worse

Better

This route is on time most of the time. About 78% of flights arrive on schedule.

Delays on this route are most often caused by the airline (crew, maintenance, or boarding).

Accurate?

Endeavor Air is significantly more reliable on this route at 86% on time vs SkyWest Airlines at 71%.

Airline Comparison

Endeavor Air leads at 86% on time; SkyWest Airlines trails at 71%.

Accurate?

Good to know

Departing from DTW

80% on time

Expect ~18 min sitting on the taxiway after your gate pushes back. DTW has long runway queues.

TSA is currently ~11 min. Best time: 4 AM (about 5 min).

More about DTW →

Arriving at GSP

80% on time

When flights into GSP are late, the average delay is 74 minutes. Build buffer if you have ground plans.

If connecting at GSP: TSA is ~26 min right now. Allow at least 60 minutes for a domestic connection.

GSP has a 2.3% cancellation rate — keep the airline app handy for rebooking.

More about GSP →Connection times at GSP →

Flight cancelled or delayed?

Check what Endeavor Air owes you — refund rights, action plan, complaint email. Free.

Flying out of DTW? We'll brief you.

Delays, TSA, weather, gates — we'll let you know if something matters.

DTW Airport GSP Airport

Check the return: GSP → DTW

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Data last updated August 2026. Source: Bureau of Transportation Statistics.