| Date | From | To | Departure | Arrival | Status | |
|---|---|---|---|---|---|---|
| Oct 16 | DEN | FSD | 17:40 | 20:20 |
Delayed
|
Track > |
| Oct 15 | DEN | FSD | 19:07 | 21:17 |
Delayed
|
Track > |
| Oct 14 | DEN | FSD | 17:51 | 19:51 |
Landed
|
Track > |
| Oct 13 | DEN | FSD | 17:59 | 20:00 |
Landed
|
Track > |
| Oct 12 | DEN | FSD | 18:04 | 20:12 |
Landed
|
Track > |
| Oct 11 | DEN | FSD | 18:09 | 20:15 |
En-Route
|
Track > |
| Oct 10 | DEN | FSD | 18:05 | 20:09 |
Landed
|
Track > |
| Oct 09 | DEN | FSD | 18:21 | 20:28 |
En-Route
|
Track > |
| Oct 08 | DEN | FSD | 18:17 | 20:24 |
Landed
|
Track > |
| Oct 07 | DEN | FSD | 17:46 | 19:53 |
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 5 minutes. The flight distance is 777 km / 483 miles and the average flight speed is 688 km/h / 428 mph.
How many UA645 flights are operated per week?
6 flights per week. The flight UA645 is operated on Monday, Tuesday, Wednesday, Thursday, Friday 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 4.9/5 stars. This metric is calculated using data from the past 10 flights.
When was the latest UA645 flight?
The latest flight took off on Saturday, October 17th, 2026 with the flight status being Scheduled on 20:20.
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, 30% of all UA645 flights are delayed. The average delay is 23 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: LH447, UA1220, OO5356, OO5541
Other flights arriving at Sioux Falls FSD: DL2615, AA2937, OO3850, EM7584
All flights connecting Denver DEN to Sioux Falls FSD.
