| Date | From | To | Departure | Arrival | Status | |
|---|---|---|---|---|---|---|
| Jun 28 | GSP | DEN | 16:47 | 17:55 |
En-Route
|
Track > |
| Jun 27 | GSP | DEN | 17:09 | 18:30 |
Landed Late
|
Track > |
| Jun 26 | GSP | DEN | 00:16 | 17:55 |
Unknown
|
Track > |
| Jun 25 | GSP | DEN | 16:29 | 17:25 |
Landed
|
Track > |
United Airlines Flight UA1866 connects Greenville-Spartanburg, United States to Denver, United States, taking off from Greenville-Spartanburg International Airport GSP and landing at Denver International Airport DEN.
How long is the UA1866 flight from Greenville-Spartanburg to Denver?
The average flight time from Greenville-Spartanburg to Denver is 3 hours and 8 minutes. The flight distance is 2053 km / 1276 miles and the average flight speed is 608 km/h / 378 mph.
How many UA1866 flights are operated per week?
4 flights per week. The flight UA1866 is operated on Thursday, Friday, Saturday and Sunday.
What is the On-Time Performance (OTP) of United Airlines Flight UA1866 Greenville-Spartanburg to Denver?
The Airportia On-Time Performance Rating for United Airlines Flight UA1866 is 4.9/5 stars. This metric is calculated using data from the past 10 flights.
When was the latest UA1866 flight?
The latest flight took off on Sunday, June 28th, 2026 with the flight status being En-Route on 17:55.
How else can the flight UA1866 be referenced as?
This United Airlines flight can also be referenced as UAL1866, UA 1866, UAL 1866.
How often is flight UA1866 delayed?
On average, 25% of all UA1866 flights are delayed. The average delay is 35 minutes.
Can I get compensation for my delayed or cancelled UA1866 flight or baggage issues?
If your UA1866 flight was cancelled, delayed, or if you experienced baggage issues such as delayed, damaged, or lost bags, you may be entitled to compensation. Compensation amounts and eligibility depend on various regulations, including EC 261/2004, UK261, CA Montreal Convention, US GoodWill, BR-ANAC, SA-GACA and TK-SHY.
See our UA1866 Flight Tracker above for more details.
Flight UA1866 is code-shared by 1 airline using the flight number AC4623
Other flights departing from Greenville-Spartanburg GSP: G42641, AA6131, UA4038, DL3095
Other flights arriving at Denver DEN: UA178, UA2297, KG3105, OO5105
All flights connecting Greenville-Spartanburg GSP to Denver DEN.