WN856 Southwest Airlines - Flight Status

Which is the frequency of flight WN856?
The flight WN856 is scheduled to flight on Monday, Tuesday, Friday, Saturday, Sunday on a weekly basis.

Which is the distance of flight WN856?
The distance between the two airports is 1022 miles.

Which is the flight time of flight WN856?
The scheduled flight time gate to gate is: 03:05 hours.
The real flight time gate to gate on average is: 03:15 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 Denver: 2026-01-06 16:27:06
Current Time in Seattle: 2026-01-06 15:27:06

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

Alaska Airlines
- Flight Number: AS154. (On Time performance: 47 - Average Delay: 38 minutes)
- Flight Number: AS535. (On Time performance: 67 - Average Delay: 15 minutes)
- Flight Number: AS615. (On Time performance: 58 - Average Delay: 18 minutes)
- Flight Number: AS643. (On Time performance: 80 - Average Delay: 11 minutes)
- Flight Number: AS682. (On Time performance: 83 - Average Delay: 10 minutes)

Air Transport International
- Flight Number: 8C3381. (On Time performance: 27 - Average Delay: 32 minutes)

Delta Air Lines
- Flight Number: DL1724. (On Time performance: 29 - Average Delay: 177 minutes)
- Flight Number: DL1731. (On Time performance: 74 - Average Delay: 34 minutes)
- Flight Number: DL2740. (On Time performance: 79 - Average Delay: 21 minutes)
- Flight Number: DL317. (On Time performance: 56 - Average Delay: 57 minutes)

Frontier Airlines
- Flight Number: F94545. (On Time performance: 77 - Average Delay: 15 minutes)

United Airlines
- Flight Number: UA1115. (On Time performance: 69 - Average Delay: 19 minutes)
- Flight Number: UA1424. (On Time performance: 91 - Average Delay: 10 minutes)
- Flight Number: UA1729. (On Time performance: 81 - Average Delay: 8 minutes)
- Flight Number: UA2013. (On Time performance: 85 - Average Delay: 11 minutes)
- Flight Number: UA2271. (On Time performance: 88 - Average Delay: 5 minutes)
- Flight Number: UA2651. (On Time performance: 73 - Average Delay: 14 minutes)
- Flight Number: UA618. (On Time performance: 73 - Average Delay: 11 minutes)

Southwest Airlines
- Flight Number: WN2626. (On Time performance: 31 - Average Delay: 39 minutes)
- Flight Number: WN2628. (On Time performance: 58 - Average Delay: 22 minutes)
- Flight Number: WN2919. (On Time performance: 55 - Average Delay: 22 minutes)
- Flight Number: WN3308. (On Time performance: 44 - Average Delay: 25 minutes)
- Flight Number: WN519. (On Time performance: 76 - Average Delay: 8 minutes)

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

Delays analyzed by Weekday: We have gathered available data from last six months, spanning from November 22, 2025 to December 28, 2025. 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.

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

Delays analyzed by Month: It is not possible to calculate the On-Time Performance for this flight accurately by month due to insufficient or non-representative data, as doing so could lead to misleading conclusions