United Airlines UA645 Flight Status
According to Trip.com real-time data, the UA645 flight operated by United Airlines on Oct 23, 2026 is scheduled to fly from Denver (DEN) to Sioux Falls (FSD). The flight is expected to depart at 5:40 PM (local time in Denver, UTC-6) and land at 7:47 PM (local time in Sioux Falls, UTC-5) .
Thu, Oct 22
Fri, Oct 23
Access more flight status info on the Trip.com app
Show more
Scheduled
Your flight will depart on time.
1h 40m
Check-in Counter
7,8
Boarding Gate
B41
Arrival Gate
7
Baggage
1
Need a flight from Denver to Sioux Falls?
United Airlines From €197
Search flights Access more flight status info on the Trip.com app
Show more
Scheduled
Your flight will depart on time.
1h 40m
Check-in Counter
7,8
Boarding Gate
--
Arrival Gate
7
Baggage
1
Show more
Need a flight from Denver to Sioux Falls?
United Airlines From €197
Search flights Information provided by VariFlight For real-time updates, please check airport displays or contact your airline.
Track the Previous Flight Status: Scheduled
UA2285
|
Sacramento (SAC)
Denver (DEN)
Denver (DEN)
Scheduled: 12:28 PM
fake text
Track incoming flight status with our app
Show more
UA645 Aircraft Details
According to Trip.com real-time data, the UA645 flight flying from Denver to Sioux Falls on 10/23/2026 is operated by the aircraft model Boeing 737-900. This aircraft has been in service for 18y, 4m. The aircraft is equipped with 179 seats.
Boeing 737-900
Punctuality (Departure)
80
%
Punctuality (Arrival)
93
%
Early on average
7 minutes
Age
18y, 4m
Seats
179
Flight Distance
--
Economy
First
Premium Economy
In-Flight Services
Snacks
On-demand entertainment
Wi-Fi (additional charge)
Power outlet
Seat Information
--
Legroom
--
Seat width
100°
Reclining Angle
3-3
Seat layout example
In-Flight Services
Snacks
On-demand entertainment
Wi-Fi (additional charge)
Power outlet
Seat Information
94 cm
Legroom
51 cm
Seat width
120°
Reclining Angle
2-2
Seat layout example
In-Flight Services
None
Live TV
Wi-Fi is available
Power outlet
Seat Information
86 cm
Legroom
43 cm
Seat width
105°
Reclining Angle
3-3
Seat layout example
See more amenities and seat info in the app
Show more
Flight History for UA645
Trip.com historical records show that the last UA645 flight departed on Thu, Oct 22 from DEN at approximately 5:40 PM. This flight is expected to arrrive in FSD at 7:47 PM.
| Date | Airport | Aircraft Model | Departure | Arrival | Status | |
|---|---|---|---|---|---|---|
| Departure | Arrival | |||||
| Sat, Oct 17 | Denver (DEN) | Sioux Falls (FSD) | 739 | 6:29 PM | 8:37 PM | Arrived |
| Sun, Oct 18 | Denver (DEN) | Sioux Falls (FSD) | 739 | 6:07 PM | 8:15 PM | Arrived |
| Mon, Oct 19 | Denver (DEN) | Sioux Falls (FSD) | 739 | 5:56 PM | 8:01 PM | Arrived |
| Tue, Oct 20 | Denver (DEN) | Sioux Falls (FSD) | 739 | 6:02 PM | 8:07 PM | Arrived |
| Wed, Oct 21 | Denver (DEN) | Sioux Falls (FSD) | 739 | 5:57 PM | 8:04 PM | Arrived |
| Thu, Oct 22 | Denver (DEN) | Sioux Falls (FSD) | 739 | 5:40 PM | 7:47 PM | Scheduled |
| Fri, Oct 23 | Denver (DEN) | Sioux Falls (FSD) | 739 | 5:40 PM | 7:47 PM | Scheduled |
text.text............fake.row.text............text.........fake row
...text
Check upcoming flights with our app
Show more
UA645 On-Time Performance
Based on the average performance of this flight over the past 30 trips, the on-time departure rate of UA645 is 80% (Late on average 25 minutes), and the on-time arrival rate is 93% (Early on average 7 minutes).
On-Time Departures
Punctuality
80
%
Late on average
25 minutes
Early
0
%
On time
80
%
30 mins late
13
%
60 mins late
7
%
90 mins late
0
%
Canceled
0
%
On-Time Arrivals
Punctuality
93
%
Early on average
7 minutes
Early
83
%
On time
10
%
30 mins late
7
%
60 mins late
0
%
90 mins late
0
%
Canceled
0
%
Need a flight from Denver to Sioux Falls?
- From Denver
- To Sioux Falls
- Return flights
More Cheap Flights
More Cheap Flights
More Cheap Flights
Recommended hotels in Sioux Falls
Hotels near Sioux Falls Regional Airport
Hotels near Sioux Falls
8.9/10
102 Reviews
AeroStay
0.12 km from the airport
5% off
€131 €124
6.8/10
5 Reviews
Sioux Falls Inn
2.02 km from the airport
€64
7.5/10
102 Reviews
Ramada by Wyndham Sioux Falls Airport-Waterpark & Event Ctr
2.31 km from the airport
3% off
€76 €74
9.3/10
90 Reviews
Fairfield Inn & Suites Sioux Falls Airport
2.38 km from the airport
€97
8.8/10
2 Reviews
Historic Twin Tudors Inn
1.33 km from downtown
€213
9.2/10
105 Reviews
Canopy by Hilton Sioux Falls Downtown
1.13 km from downtown
3% off
€190 €185
8.6/10
98 Reviews
Sheraton Sioux Falls & Convention Center
2.43 km from downtown
€117
9.5/10
101 Reviews
ClubHouse Hotel Sioux Falls
3.99 km from downtown
€136
Frequently Asked Questions
What is the current status of flight ua645?
Flight ua645 has not departed yet and is currently on schedule. Scheduled departure 5:40 PM, arrival 8:20 PM (updated Oct 23, 2026).Is flight ua645 on time today?
Flight ua645 has not departed yet and is currently on schedule. Scheduled departure is 5:40 PM, with arrival at 8:20 PM. Recheck gate and timing before you head to the airport.Has flight ua645 departed yet? What is the departure time?
Flight ua645 is scheduled to depart at 5:40 PM. The latest actual or estimated departure time is 5:40 PM, and the current status is Scheduled (updated Oct 23, 2026).When is flight ua645 scheduled to arrive?
Flight ua645 is scheduled to arrive at 8:20 PM. The latest estimated or actual arrival time is 7:47 PM. Status is Scheduled as of Oct 23, 2026.What route does flight ua645 fly?
Flight ua645 is operated by United Airlines from Denver (DEN) to Sioux Falls (FSD). Typical flight time is about 1 hour40 minutes; operating days may include Friday.How can I check real-time status for flight ua645?
Track flight ua645 on this Trip.com status page for live departure, arrival, gate and baggage updates. For push alerts on the go, open the same flight in the Trip.com App and turn on flight notifications.If flight ua645 is delayed or canceled, what should I do?
If ua645 is delayed or canceled, first confirm the latest status here (Scheduled, updated Oct 23, 2026). Contact United Airlines or your booking channel for rebooking or refund options, and check Trip.com Manage Booking if you booked on Trip.com.Has flight ua645 departed from Denver?
Flight ua645 has not departed from Denver (DEN) yet and is currently on schedule for 5:40 PM.What is the seat configuration for flight ua645?
Flight ua645 usually flies a Boeing 737-900 with seat layout 3-3. Layouts can differ by aircraft subtype and cabin product—confirm your seat map in Manage Booking after you purchase.
Sioux Falls Vacation Packages: Cheap Flights, Hotels & Tours
Hotels
Airport Transfers
Tours & Tickets
Car Rentals
Arrival Info: Sioux Falls Weather & Current Time
Mostly clear
|
15°C - 25°C
Weather forecast for your arrival day
1 hour time difference
Time on arrival: Denver 18:47
|
Sioux Falls 19:47
Worldwide Coverage
Flights to over 5,000 cities
One-stop Service Guarantee
Price guaranteed upon confirmed payment, booking guaranteed once tickets issued
Secure Payment
Convenient & reliable booking and payment system