| Date | From | To | Departure | Arrival | Status | |
|---|---|---|---|---|---|---|
| Aug 27 | DEN | FSD | 17:47 | 20:01 |
En-Route
|
Track > |
| Aug 26 | DEN | FSD | 17:45 | 19:51 |
Landed
|
Track > |
| Aug 25 | DEN | FSD | 17:50 | 19:55 |
Landed
|
Track > |
| Aug 24 | DEN | FSD | 18:33 | 20:07 |
En-Route
|
Track > |
| Aug 23 | DEN | FSD | 18:46 | 20:53 |
Landed Late
|
Track > |
| Aug 22 | DEN | FSD | 18:48 | 20:59 |
Delayed
|
Track > |
| Aug 21 | DEN | FSD | 20:53 | 20:07 |
En-Route
|
Track > |
| Aug 20 | DEN | FSD | 17:52 | 20:04 |
Landed
|
Track > |
| Aug 19 | DEN | FSD | 17:56 | 20:04 |
En-Route
|
Track > |
| Aug 18 | DEN | FSD | 17:39 | 19:45 |
Landed
|
Track > |
United Airlines Flight UA645 connects Denver, United States to Sioux Falls, United States, taking off from Denver International Airport DEN and landing at Sioux Falls Regional Airport FSD.
How long is the UA645 flight from Denver to Sioux Falls?
The average flight time from Denver to Sioux Falls is 1 hour and 8 minutes. The flight distance is 777 km / 483 miles and the average flight speed is 641 km/h / 398 mph.
How many UA645 flights are operated per week?
6 flights per week. The flight UA645 is operated on Monday, Tuesday, Wednesday, Thursday, Saturday and Sunday.
What is the On-Time Performance (OTP) of United Airlines Flight UA645 Denver to Sioux Falls?
The Airportia On-Time Performance Rating for United Airlines Flight UA645 is 4.8/5 stars. This metric is calculated using data from the past 10 flights.
When was the latest UA645 flight?
The latest flight took off on Friday, August 28th, 2026 with the flight status being En-Route on 20:01.
How else can the flight UA645 be referenced as?
This United Airlines flight can also be referenced as UAL645, UA0645, UA 645, UAL 645.
How often is flight UA645 delayed?
On average, 20% of all UA645 flights are delayed. The average delay is 49 minutes.
Can I get compensation for my delayed or cancelled UA645 flight or baggage issues?
If your UA645 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 UA645 Flight Tracker above for more details.
Flight UA645 is code-shared by 1 airline using the flight number LH9364
Other flights departing from Denver DEN: KG3587, UA1942, WN1634, WN4760
Other flights arriving at Sioux Falls FSD: DL2615, G456, OO3578, EM7584
All flights connecting Denver DEN to Sioux Falls FSD.
