DTW to GSP flight delays & on-time performance
Nonstop flights from Detroit Metropolitan Wayne County Airport to Greenville-Spartanburg International Airport · 508 miles · Aug 2025 – Jul 2026
No FAA-reported ground stops or delays at DTW or GSP right now. Individual flights can still be delayed by the airline; check with your airline for your flight.
Key facts
- Flights from Detroit (DTW) to Greer (GSP) arrived on time 76% of the time in Aug 2025 – Jul 2026, worse than the 78% national average.
- 2.5% were cancelled, and 10% arrived an hour or more late.
- Delta Air Lines was the most punctual airline here (78% on time); SkyWest Airlines was the least (70%).
- Departures scheduled around 9am did best (92% on time); around 4pm did worst (66%).
- Thursday was the most reliable day to fly (87% on time) and Sunday the least (71%).
- The largest source of delay minutes was airline (crew, maintenance, cleaning, fueling) (54%).
Which airline is most on time from DTW to GSP?
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 | 78% | 2.3% | 18 min | 9.4% | 393 |
| SkyWest AirlinesRegional airline operating flights for United Express, Delta Connection, American Eagle and Alaska. | 70% | 3.2% | 28 min | 11.8% | 158 |
Best time of day to fly
On-time arrival rate by scheduled departure hour (local time).
- 8am85%53 flights
- 9am92%25 flights
- 3pm72%55 flights
- 4pm66%141 flights
- 5pm94%16 flights
- 7pm77%125 flights
- 8pm79%126 flights
Best day of the week
On-time arrival rate by day of departure.
- Monday76%0.0% cancelled
- Tuesday72%1.3% cancelled
- Wednesday74%2.5% cancelled
- Thursday87%0.0% cancelled
- Friday75%1.2% cancelled
- Saturday73%5.9% cancelled
- Sunday71%7.2% cancelled
On-time trend by month
Why flights are late
Share of delay minutes by cause, as reported by airlines to the DOT.
- Airline (crew, maintenance, cleaning, fueling)54%
- Late-arriving aircraft22%
- Extreme weather14%
- Air traffic control & airport congestion11%
- Security0%
Why flights are cancelled
Share of cancellations by reason.
- Extreme weather50%
- Airline (crew, maintenance, cleaning, fueling)43%
- Air traffic control & airport congestion7%
- Security0%
DTW to GSP: common questions
- How often are DTW to GSP flights on time?
- 76% 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 Detroit to Greer cancelled?
- 2.5% of scheduled flights were cancelled (14 of 551).
- How long are typical delays?
- Across all flights the average arrival delay was 21 min (early arrivals count as zero). Flights that were late arrived 82 min behind schedule on average, and 10.1% of flights were an hour or more late.
- How long is taxi time at DTW?
- Flights on this route spent 19 min taxiing from the gate to takeoff on average.
Related routes
Return trip: GSP to DTW — 87% on time
More flights from Detroit
Data: U.S. DOT Bureau of Transportation Statistics, Aug 2025 – Jul 2026 (12 months). Latest month published by BTS: July 2026. Route: DTW → GSP, nonstop flights by US airlines that report to the DOT. How we calculate this.