GSP to DTW flight delays & on-time performance
Nonstop flights from Greenville-Spartanburg International Airport to Detroit Metropolitan Wayne County Airport · 508 miles · Aug 2025 – Jul 2026
No FAA-reported ground stops or delays at GSP or DTW 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 Detroit (DTW) arrived on time 87% of the time in Aug 2025 – Jul 2026, better than the 78% national average.
- 2.7% were cancelled, and 6% arrived an hour or more late.
- Delta Air Lines was the most punctual airline here (91% on time); SkyWest Airlines was the least (78%).
- Departures scheduled around 7am did best (94% on time); around 6pm did worst (76%).
- Saturday was the most reliable day to fly (94% on time) and Monday the least (82%).
- The largest source of delay minutes was airline (crew, maintenance, cleaning, fueling) (61%).
Which airline is most on time from GSP to DTW?
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 | 91% | 2.6% | 7 min | 3.7% | 392 |
| SkyWest AirlinesRegional airline operating flights for United Express, Delta Connection, American Eagle and Alaska. | 78% | 3.2% | 31 min | 12.4% | 158 |
Best time of day to fly
On-time arrival rate by scheduled departure hour (local time).
- 7am94%303 flights
- 11am88%78 flights
- 6pm76%162 flights
Best day of the week
On-time arrival rate by day of departure.
- Monday82%3.8% cancelled
- Tuesday84%1.3% cancelled
- Wednesday83%0.0% cancelled
- Thursday92%2.5% cancelled
- Friday89%1.2% cancelled
- Saturday94%4.3% cancelled
- Sunday88%6.0% 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)61%
- Extreme weather23%
- Late-arriving aircraft11%
- Air traffic control & airport congestion6%
- Security0%
Why flights are cancelled
Share of cancellations by reason.
- Extreme weather47%
- Airline (crew, maintenance, cleaning, fueling)40%
- Air traffic control & airport congestion13%
- Security0%
GSP to DTW: common questions
- How often are GSP to DTW flights on time?
- 87% 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 Detroit cancelled?
- 2.7% of scheduled flights were cancelled (15 of 550).
- How long are typical delays?
- Across all flights the average arrival delay was 14 min (early arrivals count as zero). Flights that were late arrived 102 min behind schedule on average, and 6.2% of flights were an hour or more late.
- How long is taxi time at GSP?
- Flights on this route spent 13 min taxiing from the gate to takeoff on average.
Related routes
Return trip: DTW to GSP — 76% 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 → DTW, nonstop flights by US airlines that report to the DOT. How we calculate this.