Route · DEN → GSP · 2020–2025 BTS data
Denver to Greer
According to PlainFlights' route traffic ranking (BTS On-Time Performance total flights), DEN to GSP (Denver to Greer) ranks #4017 of 4927 tracked domestic routes by total flights (most flights = #1).
Data updated 2026-06-13
- 78%
- On-time
- -1 pts
- vs US avg
- 61 min
- Delay when late
- 1,692
- Flights
- #4017 of 4927
- Corpus placement
Cancelled
0.3%
Best Month
N/A
Worst Month
N/A
Distance
1,278 mi
Carriers
12
Monthly Performance
Recent 24 months of route data.
| Period | Flights | Delayed | Cancelled | Diverted | Carriers |
|---|---|---|---|---|---|
| Dec 2025 | 31 | 3 | 0 | 0 | UA,OO |
| Nov 2025 | 30 | 3 | 0 | 0 | UA |
| Oct 2025 | 31 | 5 | 0 | 0 | UA |
| Sep 2025 | 30 | 3 | 0 | 0 | UA |
| Aug 2025 | 33 | 7 | 0 | 0 | WN,UA |
| Jul 2025 | 39 | 9 | 0 | 0 | UA,WN |
| Jun 2025 | 38 | 7 | 0 | 0 | UA,WN |
| May 2025 | 31 | 1 | 0 | 0 | OO,UA |
| Apr 2025 | 30 | 5 | 0 | 0 | OO |
| Mar 2025 | 31 | 5 | 0 | 0 | OO |
| Jan 2025 | 31 | 8 | 1 | 0 | OO |
| Dec 2024 | 31 | 0 | 0 | 0 | OO |
| Nov 2024 | 30 | 6 | 0 | 0 | OO |
| Oct 2024 | 31 | 3 | 0 | 1 | OO |
| Sep 2024 | 30 | 3 | 0 | 0 | OO |
| Aug 2024 | 33 | 9 | 0 | 0 | WN,OO |
| Jul 2024 | 39 | 4 | 0 | 0 | OO,WN |
| Jun 2024 | 38 | 7 | 0 | 0 | OO,WN |
| May 2024 | 31 | 7 | 0 | 0 | OO,UA |
| Apr 2024 | 30 | 5 | 0 | 0 | OO |
| Mar 2024 | 31 | 6 | 1 | 0 | OO |
| Jan 2024 | 31 | 6 | 0 | 0 | OO |
| Dec 2023 | 31 | 7 | 0 | 0 | OO |
| Oct 2023 | 31 | 3 | 0 | 0 | OO |
DEN–GSP seasonal on-time pattern
Best: April (85.4%) · weakest: February (68.4%)
Strongest calendar month
April
85.4% on-time · ~30 flights/mo
Busiest calendar month
February
~38 flights/mo avg
Weakest calendar month
February
68.4% on-time · ~38 flights/mo
Cancellation Rate
0.3%
2 of 772 flights
Diversion Rate
0.1%
1 of 772 flights
Explore origin & destination
On-time and delay data for the airports this route connects.
DEN - Denver
Full on-time, delay-cause, and seasonal performance for Denver, CO.
DEN on-time profileGSP - Greer
Full on-time, delay-cause, and seasonal performance for Greer, SC.
GSP on-time profileCompare the two airports
See DEN and GSP side by side on delays, cancellations, and reliability.
Compare DEN vs GSPOrigin-hub reliability standing
Mid-pack among DEN departures
From DEN, this corridor sits with 133 other 75–85% on-time routes out of 168 tracked departures, not the hub's reliability leaders (8 at ≥85%) and not the softest ( 27 below 75%). Destination: Greer · fleet on-time rank #3835 of 4927.
Similar routes
Other BTS-tracked routes with comparable performance or trip length to DEN–GSP.
Routes with a similar on-time rate
What the Data Says About DEN to GSP
The Denver to Greer corridor (DEN to GSP) posts a 78% on-time rate on the lower edge of the average band, based on 1,692 tracked flights. Late flights run 61.3 minutes behind on average. 12 carriers cover the 1,278-mile route; over the last 24 months, 2 of 772 flights were cancelled (0.3%) and 0.1% diverted.
Monthly performance data for this route did not show a clear best/worst split in the sample window; review the monthly table above for period-by-period detail.
On the multi-year calendar, DEN–GSP peaks in April at 85.4% on-time while February carries the heaviest traffic (~38 flights per month) ; the softest month is February at 68.4%, a 17.0-point swing that repeats because the corridor's weather and holiday mix stays stable year to year.
Frequently Asked Questions
Where does DEN to GSP rank among US routes by traffic? ▼
How often are flights delayed from DEN to GSP? ▼
What is the cancellation rate for DEN to GSP? ▼
How far is the flight from DEN to GSP? ▼
Airports on this route
Data source
Data Source: Bureau of Transportation Statistics (BTS), On-Time Performance Data. Statistics reflect cumulative performance across all available reporting periods.
Read our methodology - how this data is sourced, computed, and verified.
Using DEN–GSP data
DEN–GSP is mid-pack at 78% on-time; month and carrier mix move more than the corridor headline.
- Compare DEN and GSP airport profiles: delay causes and top routes differ even on the same corridor. DEN airport
- If your dates flex, April (85.4% on-time) beats February (68.4%) on this corridor. Seasonal chart
- 4 other routes post a similar 78% on-time rate; compare before you commit to this pairing. Similar routes
On-time rate reflects the BTS historical average across all reporting carriers on this origin–destination pair, not any single flight or booking recommendation.
Every figure on PlainFlights is rendered directly from BTS On-Time Performance data, no number is typed in by an editor. This page aggregates this specific route's on-time performance and monthly trend, live from the dataset. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error.