Informational Guide to Denver Airport - DEN - NON OFFICIAL

WN851 Southwest Airlines - Flight Status

Below, you can find details about Southwest Airlines flight WN851, which currently operates between the airports of Sacramento - Sacramento International Airport (Airport Code SMF) and Denver - Denver International Airport (Airport Code DEN).
This flight data pertains specifically to the flight's details for Saturday, June 06, 2026.

WN851 On Time performance:
55
We have calculated the percentage of flights that arrived within 15 minutes of their scheduled time, or earlier, based on real flight data from the last 3 months. More about punctuality and delays

Flight Status

WN851 Southwest Airlines from Sacramento

Scheduled
Flight Status for Saturday June 06, 2026

Airline information

Southwest Airlines
Southwest Airlines
Equipment: Boeing 737-700 (winglets) Passenger/BBJ1

Departure

Sacramento (SMF)
June 06, 2026
Sacramento International Airport
Scheduled Departure Time:
04:45 pm
Terminal:
B
Gate:
B14
Scheduled Departure Time: 04:45 pm

Arrival

Denver (DEN)
June 06, 2026
Denver International Airport
Scheduled Arrival Time:
08:05 pm
Concourse:
C
Gate:
C48
Scheduled Arrival Time: 08:05 pm
Disclaimer
The information displayed on this website is gathered from third-party providers with a wide reputation on the sector, which in turn obtain the information from the airlines. This data is provided only for informative purposes. www.denver-airport.com assumes no responsibility for loss or damage as a result of relying on information posted here. Please contact your airline to verify flight status.

Additional Information

Which is the frequency of flight WN851?
The flight WN851 is scheduled to flight on Tuesday, Wednesday on a weekly basis.

Which is the distance of flight WN851?
The distance between the two airports is 907 miles.

Which is the flight time of flight WN851?
The scheduled flight time gate to gate is: 02:20 hours.
The real flight time gate to gate on average is: 00:39 hours.

Are the departure airport and arrival airport at the same Time Zone?
No, each airport is in a different timezone. The times shown above, are presented in the local time of each respective airport.
Current Time in Sacramento: 2026-06-06 00:25:35
Current Time in Denver: 2026-06-06 01:25:35

Alternative Flights

The following airlines serves the same route between Sacramento and Denver:

Frontier Airlines
- Flight Number: F93666. (On Time performance: 82 - Average Delay: 21 minutes)

United Airlines
- Flight Number: UA1023. (On Time performance: 82 - Average Delay: 16 minutes)
- Flight Number: UA1841. (On Time performance: 91 - Average Delay: 4 minutes)
- Flight Number: UA1889. (On Time performance: 98 - Average Delay: 1 minutes)
- Flight Number: UA1961. (On Time performance: 83 - Average Delay: 15 minutes)
- Flight Number: UA2285. (On Time performance: 96 - Average Delay: -3 minutes)
- Flight Number: UA549. (On Time performance: 83 - Average Delay: 17 minutes)
- Flight Number: UA566. (On Time performance: 89 - Average Delay: 7 minutes)

Southwest Airlines
- Flight Number: WN1354. (On Time performance: 60 - Average Delay: 17 minutes)
- Flight Number: WN1479. (On Time performance: 80 - Average Delay: 11 minutes)
- Flight Number: WN236. (On Time performance: 92 - Average Delay: 4 minutes)
- Flight Number: WN4329. (On Time performance: 89 - Average Delay: 5 minutes)
- Flight Number: WN4331. (On Time performance: 73 - Average Delay: 17 minutes)
- Flight Number: WN674. (On Time performance: 54 - Average Delay: 16 minutes)

Punctuality and delays

We have gathered data from recent months and present below an analysis of how timely the flights have been.

In terms of On-Time Performance, by analyzing the flight data from the last three months, spanning from March 05, 2026 to May 27, 2026, we have obtained these figures.
Total number of flights: 44
On Time: 24 ( 55 % )
Moderate Delay: 6 ( 14 % )
Significant Delay: 5 ( 11 % )
Major Delay: 8 ( 18 % )
Canceled: 0 ( 0 % )
Diverted: 1 ( 2 % )

Average Delay: 33 minutes.
Delays analyzed by Weekday: We have gathered available data from last six months, spanning from March 05, 2026 to May 27, 2026. Next, you can observe the results broken down by day of the week: number of flights analyzed, on-time performance per day, and average delay per day.

Delays analyzed by Month: We have gathered available data from last twelve closed months, spanning from July 04, 2025 to April 29, 2026. Next, you can observe the results broken down by month: number of flights analyzed, on-time performance per month, and average delay per month.

Note: We have excluded some months from the graph, since the quantity and quality of the data is not representative enough.

Last Past Flights WN851

Date
Departure
Arrival
Duration
Aircraft
Status
Wednesday
03 June
03:29 pm
Dallas (DAL)
05:43 pm
Denver (DEN)
01h 14min
Boeing 737-800
Boeing 737-800
Landed - Delayed
Tuesday
02 June
03:18 pm
Dallas (DAL)
04:19 pm
Denver (DEN)
00h 01min
Boeing 737MAX
Boeing 737MAX
Landed - On-time
Wednesday
27 May
03:57 pm
Dallas (DAL)
05:20 pm
Denver (DEN)
00h 23min
Boeing 737MAX
Boeing 737MAX
Landed - Delayed
Tuesday
26 May
04:01 pm
Dallas (DAL)
05:24 pm
Denver (DEN)
00h 23min
Boeing 737MAX
Boeing 737MAX
Landed - Delayed
Wednesday
20 May
03:57 pm
Dallas (DAL)
04:42 pm
Denver (DEN)
23h 45min
Boeing 737MAX
Boeing 737MAX
Landed - Delayed
Tuesday
19 May
05:35 pm
()
05:18 pm
Denver (DEN)
Boeing 737MAX
Boeing 737MAX
- DIVERTED
Tuesday
19 May
05:35 pm
Dallas (DAL)
07:26 pm
Dallas (DAL)
Boeing 737MAX
Boeing 737MAX
Landed - DIVERTED
Wednesday
13 May
03:16 pm
Dallas (DAL)
04:16 pm
Denver (DEN)
Boeing 737MAX
Boeing 737MAX
Landed - On-time
Tuesday
12 May
03:51 pm
Dallas (DAL)
05:03 pm
Denver (DEN)
Boeing 737MAX
Boeing 737MAX
Landed - Delayed