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

WN4251 Southwest Airlines - Flight Status

Below, you can find details about Southwest Airlines flight WN4251, which currently operates between the airports of Seattle - Seattle-Tacoma International Airport (Airport Code SEA) and Dallas - Dallas Love Field (Airport Code DAL).
This flight data pertains specifically to the flight's details for Tuesday, August 26, 2025.

WN4251 On Time performance:
50
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

WN4251 Southwest Airlines to Dallas

Landed - On-time
Flight Status for Tuesday August 26, 2025
This flight was also scheduled for Yesterday (August 25, 2025). See it here
This flight is also scheduled for Tomorrow (August 27, 2025). See it here

Airline information

Southwest Airlines
Southwest Airlines
Equipment: Boeing 737MAX 8 Passenger

Departure

Seattle (SEA)
August 26, 2025
Seattle-Tacoma International Airport
Departed at:
12:39 pm
Gate:
B14
Scheduled Departure Time: 12:30 pm

Arrival

Dallas (DAL)
August 26, 2025
Dallas Love Field
Arrived at:
06:24 pm
Terminal:
1
Gate:
15
Scheduled Arrival Time: 06:35 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 WN4251?
The flight WN4251 is scheduled to flight on daily basis.

Which is the distance of flight WN4251?
The distance between the two airports is 1668 miles.

Which is the flight time of flight WN4251?
The scheduled flight time gate to gate is: 04:05 hours.
The real flight time gate to gate on average is: 03:53 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 Seattle: 2025-08-26 16:42:09
Current Time in Dallas: 2025-08-26 18:42:09

Alternative Flights

Southwest Airlines is the only airline operating the route from Seattle to Dallas.

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 August 05, 2025 to August 20, 2025, we have obtained these figures.
Total number of flights: 16
On Time: 8 ( 50 % )
Moderate Delay: 3 ( 19 % )
Significant Delay: 4 ( 25 % )
Major Delay: 1 ( 6 % )
Canceled: 0 ( 0 % )
Diverted: 0 ( 0 % )

Average Delay: 20 minutes.
Delays analyzed by Weekday: We have gathered available data from last six months, spanning from February 22, 2025 to August 20, 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

Last Past Flights WN4251

Date
Departure
Arrival
Duration
Aircraft
Status
Monday
25 August
01:44 pm
Seattle (SEA)
07:56 pm
Dallas (DAL)
04h 12min
Boeing 737-700
Boeing 737-700
Landed - On-time
Sunday
24 August
12:02 pm
Seattle (SEA)
05:59 pm
Dallas (DAL)
03h 57min
Boeing 737MAX
Boeing 737MAX
Landed - On-time
Saturday
23 August
10:58 am
Seattle (SEA)
04:34 pm
Dallas (DAL)
03h 36min
Boeing 737-800
Boeing 737-800
Landed - On-time
Friday
22 August
01:52 pm
Seattle (SEA)
07:57 pm
Dallas (DAL)
04h 05min
Boeing 737-700
Boeing 737-700
Landed - On-time
Thursday
21 August
01:52 pm
Seattle (SEA)
07:58 pm
Dallas (DAL)
04h 06min
Boeing 737-700
Boeing 737-700
Landed - On-time
Wednesday
20 August
12:30 pm
Seattle (SEA)
06:20 pm
Dallas (DAL)
03h 50min
Boeing 737-800
Boeing 737-800
Landed - On-time
Tuesday
19 August
12:32 pm
Seattle (SEA)
06:21 pm
Dallas (DAL)
03h 49min
Boeing 737-800
Boeing 737-800
Landed - On-time
Monday
18 August
03:19 pm
Seattle (SEA)
09:02 pm
Dallas (DAL)
03h 43min
Boeing 737-700
Boeing 737-700
Landed - Delayed
Sunday
17 August
12:23 pm
Seattle (SEA)
06:23 pm
Dallas (DAL)
04h 00min
Boeing 737MAX
Boeing 737MAX
Landed - Delayed
Saturday
16 August
10:30 am
Seattle (SEA)
04:26 pm
Dallas (DAL)
03h 56min
Boeing 737-800
Boeing 737-800
Landed - On-time