Informational Guide to Seattle–Tacoma Airport - Seatac (SEA) - NON OFFICIAL

WN977 Southwest Airlines - Flight Status

Below, you can find details about Southwest Airlines flight WN977, which currently operates between the airports of Denver - Denver International Airport (Airport Code DEN) and Seattle - Seattle-Tacoma International Airport (Airport Code SEA).
This flight data pertains specifically to the flight's details for Monday, October 06, 2025.

WN977 On Time performance:
n/a
It is not possible to calculate the On-Time Performance for this flight accurately due to insufficient or non-representative data, as doing so could lead to misleading conclusions.

Flight Status

WN977 Southwest Airlines from Denver

Scheduled - On-time
Flight Status for Monday October 06, 2025

Airline information

Southwest Airlines
Southwest Airlines
Equipment: Boeing 737-800 (Scimitar Winglets) Passenger

Departure

Denver (DEN)
October 06, 2025
Denver International Airport
Estimated Departure Time:
04:00 pm
Terminal:
-
Gate:
-
Scheduled Departure Time: 04:00 pm

Arrival

Seattle (SEA)
October 06, 2025
Seattle-Tacoma International Airport
Estimated Arrival Time:
06:00 pm
Gate:
-
Scheduled Arrival Time: 06:00 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.seattle-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 WN977?
The flight WN977 is currently not scheduled at Seattle Airport - SEATAC.

Which is the distance of flight WN977?
The distance between the two airports is 1022 miles.

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: 2025-10-05 15:48:11
Current Time in Seattle: 2025-10-05 14:48:11

Alternative Flights

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

Alaska Airlines
- Flight Number: AS535. (On Time performance: 55 - Average Delay: 27 minutes)
- Flight Number: AS615. (On Time performance: 47 - Average Delay: 31 minutes)
- Flight Number: AS621. (On Time performance: 58 - Average Delay: 22 minutes)
- Flight Number: AS682. (On Time performance: 78 - Average Delay: 13 minutes)
- Flight Number: AS735. (On Time performance: 74 - Average Delay: 18 minutes)

Air Transport International
- Flight Number: 8C3371. (On Time performance: 14 - Average Delay: 51 minutes)

Delta Air Lines
- Flight Number: DL1675. (On Time performance: 58 - Average Delay: 31 minutes)
- Flight Number: DL1731. (On Time performance: 93 - Average Delay: 10 minutes)
- Flight Number: DL2740. (On Time performance: 76 - Average Delay: 18 minutes)

Frontier Airlines
- Flight Number: F93405. (On Time performance: 59 - Average Delay: 34 minutes)
- Flight Number: F94545. (On Time performance: 70 - Average Delay: 24 minutes)

United Airlines
- Flight Number: UA1456. (On Time performance: 89 - Average Delay: 7 minutes)
- Flight Number: UA1729. (On Time performance: 89 - Average Delay: 2 minutes)
- Flight Number: UA2271. (On Time performance: 89 - Average Delay: 7 minutes)
- Flight Number: UA2651. (On Time performance: 63 - Average Delay: 24 minutes)
- Flight Number: UA299. (On Time performance: 54 - Average Delay: 26 minutes)
- Flight Number: UA594. (On Time performance: 87 - Average Delay: 12 minutes)
- Flight Number: UA690. (On Time performance: 81 - Average Delay: 10 minutes)
- Flight Number: UA745. (On Time performance: 78 - Average Delay: 11 minutes)

Southwest Airlines
- Flight Number: WN1001. (On Time performance: 56 - Average Delay: 16 minutes)
- Flight Number: WN1319. (On Time performance: 42 - Average Delay: 18 minutes)
- Flight Number: WN2247.
- Flight Number: WN2643. (On Time performance: 66 - Average Delay: 19 minutes)
- Flight Number: WN2644. (On Time performance: 44 - Average Delay: 37 minutes)
- Flight Number: WN3042. (On Time performance: 63 - Average Delay: 26 minutes)
- Flight Number: WN3070. (On Time performance: 75 - Average Delay: 12 minutes)
- Flight Number: WN519. (On Time performance: 68 - Average Delay: 15 minutes)
- Flight Number: WN914. (On Time performance: 76 - Average Delay: 13 minutes)

Punctuality and delays

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

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

Last Past Flights WN977

Date
Departure
Arrival
Duration
Aircraft
Status
Friday
03 October
04:16 pm
Denver (DEN)
06:04 pm
Seattle (SEA)
02h 48min
Boeing 737-800
Boeing 737-800
Landed - On-time
Thursday
02 October
04:28 pm
Denver (DEN)
06:16 pm
Seattle (SEA)
02h 48min
Boeing 737MAX
Boeing 737MAX
Landed - Delayed