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

WN4045 Southwest Airlines - Flight Status

Below, you can find details about Southwest Airlines flight WN4045, which currently operates between the airports of San Jose - San Jose Mineta International Airport (Airport Code SJC) and Seattle - Seattle-Tacoma International Airport (Airport Code SEA).
This flight data pertains specifically to the flight's details for Monday, January 19, 2026.

WN4045 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

WN4045 Southwest Airlines from San Jose

Scheduled - On-time
Flight Status for Monday January 19, 2026
This flight was also scheduled for Yesterday (January 17, 2026). See it here

Airline information

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

Departure

San Jose (SJC)
January 19, 2026
San Jose Mineta International Airport
Estimated Departure Time:
06:50 am
Terminal:
B
Gate:
30
Scheduled Departure Time: 06:50 am

Arrival

Seattle (SEA)
January 19, 2026
Seattle-Tacoma International Airport
Estimated Arrival Time:
08:52 am
Gate:
B10
Scheduled Arrival Time: 09:10 am
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 WN4045?
The flight WN4045 is scheduled to flight on Thursday, Friday, Saturday, Sunday on a weekly basis.

Which is the distance of flight WN4045?
The distance between the two airports is 697 miles.

Are the departure airport and arrival airport at the same Time Zone?
Yes, both airports are in the same timezone.

Alternative Flights

The following airlines serves the same route between San Jose and Seattle:

Alaska Airlines
- Flight Number: AS1304. (On Time performance: 76 - Average Delay: 15 minutes)
- Flight Number: AS1311. (On Time performance: 93 - Average Delay: 3 minutes)
- Flight Number: AS3094. (On Time performance: 93 - Average Delay: 19 minutes)
- Flight Number: AS523. (On Time performance: 76 - Average Delay: 14 minutes)
- Flight Number: AS745. (On Time performance: 83 - Average Delay: 12 minutes)
- Flight Number: AS762. (On Time performance: 74 - Average Delay: 12 minutes)

Delta Air Lines
- Flight Number: DL3724. (On Time performance: 88 - Average Delay: 5 minutes)
- Flight Number: DL3736. (On Time performance: 90 - Average Delay: 6 minutes)
- Flight Number: DL3789.
- Flight Number: DL3840. (On Time performance: 92 - Average Delay: 5 minutes)
- Flight Number: DL3988. (On Time performance: 83 - Average Delay: 13 minutes)
- Flight Number: DL4041. (On Time performance: 97 - Average Delay: 6 minutes)
- Flight Number: DL4100. (On Time performance: 86 - Average Delay: 4 minutes)

Southwest Airlines
- Flight Number: WN1456. (On Time performance: 72 - Average Delay: 16 minutes)
- Flight Number: WN1723. (On Time performance: 92 - Average Delay: 4 minutes)
- Flight Number: WN1740. (On Time performance: 80 - Average Delay: 15 minutes)
- Flight Number: WN2383. (On Time performance: 92 - Average Delay: 4 minutes)
- Flight Number: WN3404. (On Time performance: 68 - Average Delay: 15 minutes)
- Flight Number: WN3409. (On Time performance: 31 - Average Delay: 44 minutes)
- Flight Number: WN862. (On Time performance: 100 - Average Delay: 0 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 WN4045

Date
Departure
Arrival
Duration
Aircraft
Status
Saturday
17 January
11:02 am
San Jose (SJC)
01:09 pm
Seattle (SEA)
02h 07min
Boeing 737-800
Boeing 737-800
Landed - On-time
Friday
16 January
06:49 am
San Jose (SJC)
09:12 am
Seattle (SEA)
02h 23min
Boeing 737-800
Boeing 737-800
Landed - On-time
Thursday
15 January
06:46 am
San Jose (SJC)
09:01 am
Seattle (SEA)
02h 15min
Boeing 737-800
Boeing 737-800
Landed - On-time
Sunday
11 January
06:43 am
San Jose (SJC)
08:59 am
Seattle (SEA)
02h 16min
Boeing 737-800
Boeing 737-800
Landed - On-time
Saturday
10 January
10:38 am
San Jose (SJC)
12:43 pm
Seattle (SEA)
02h 05min
Boeing 737MAX
Boeing 737MAX
Landed - On-time