WN4020 Southwest Airlines - Flight Status
Below, you can find details about Southwest Airlines flight WN4020, which currently operates between the airports of San Francisco - San Francisco International Airport (Airport Code SFO) and Phoenix - Phoenix Sky Harbor International Airport (Airport Code PHX).
This flight data pertains specifically to the flight's details for Friday, February 13, 2026.
Table of contents:
Flight Status Additional Information Alternative Flights Punctuality and delays Last Past Flights WN4020
Flight Status Additional Information Alternative Flights Punctuality and delays Last Past Flights WN4020
WN4020 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
WN4020 Southwest Airlines from San Francisco
Scheduled - On-time
Flight Status for Friday February 13, 2026
This flight is also scheduled for Today (February 12, 2026). See it here
Scheduled - On-time
Flight Status for Friday February 13, 2026
Airline information
Southwest Airlines
Equipment: Boeing 737-800 (Scimitar Winglets) Passenger
Departure
San Francisco (SFO)
February 13, 2026
San Francisco International Airport
Estimated Departure Time:
05:15 am
Terminal:
2
Gate:
D4
Scheduled Departure Time: 05:15 am
Arrival
Phoenix (PHX)
February 13, 2026
Phoenix Sky Harbor International Airport
Estimated Arrival Time:
08:10 am
Terminal:
4
Gate:
C11
Scheduled Arrival Time: 08:10 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.phoenix-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 WN4020?
The flight WN4020 is currently not scheduled at Phoenix Airport (PHX).
Which is the distance of flight WN4020?
The distance between the two airports is 651 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 San Francisco: 2026-02-12 19:55:28
Current Time in Phoenix: 2026-02-12 20:55:28
The flight WN4020 is currently not scheduled at Phoenix Airport (PHX).
Which is the distance of flight WN4020?
The distance between the two airports is 651 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 San Francisco: 2026-02-12 19:55:28
Current Time in Phoenix: 2026-02-12 20:55:28
Alternative Flights
The following airlines serves the same route between San Francisco and Phoenix:
American Airlines
- Flight Number: AA1930. (On Time performance: 72 - Average Delay: 26 minutes)
- Flight Number: AA2114. (On Time performance: 72 - Average Delay: 27 minutes)
- Flight Number: AA2411. (On Time performance: 78 - Average Delay: 47 minutes)
- Flight Number: AA3062. (On Time performance: 75 - Average Delay: 7 minutes)
- Flight Number: AA6404. (On Time performance: 96 - Average Delay: 2 minutes)
Alaska Airlines
- Flight Number: AS2341. (On Time performance: 69 - Average Delay: 18 minutes)
Frontier Airlines
- Flight Number: F91192. (On Time performance: 83 - Average Delay: 15 minutes)
United Airlines
- Flight Number: UA1074. (On Time performance: 97 - Average Delay: -2 minutes)
- Flight Number: UA1561. (On Time performance: 85 - Average Delay: 11 minutes)
- Flight Number: UA2374. (On Time performance: 96 - Average Delay: 2 minutes)
- Flight Number: UA520. (On Time performance: 89 - Average Delay: 3 minutes)
Southwest Airlines
- Flight Number: WN2869. (On Time performance: 94 - Average Delay: 3 minutes)
- Flight Number: WN3658. (On Time performance: 86 - Average Delay: 8 minutes)
- Flight Number: WN4021. (On Time performance: 100 - Average Delay: 0 minutes)
- Flight Number: WN4022. (On Time performance: 78 - Average Delay: 10 minutes)
American Airlines
- Flight Number: AA1930. (On Time performance: 72 - Average Delay: 26 minutes)
- Flight Number: AA2114. (On Time performance: 72 - Average Delay: 27 minutes)
- Flight Number: AA2411. (On Time performance: 78 - Average Delay: 47 minutes)
- Flight Number: AA3062. (On Time performance: 75 - Average Delay: 7 minutes)
- Flight Number: AA6404. (On Time performance: 96 - Average Delay: 2 minutes)
Alaska Airlines
- Flight Number: AS2341. (On Time performance: 69 - Average Delay: 18 minutes)
Frontier Airlines
- Flight Number: F91192. (On Time performance: 83 - Average Delay: 15 minutes)
United Airlines
- Flight Number: UA1074. (On Time performance: 97 - Average Delay: -2 minutes)
- Flight Number: UA1561. (On Time performance: 85 - Average Delay: 11 minutes)
- Flight Number: UA2374. (On Time performance: 96 - Average Delay: 2 minutes)
- Flight Number: UA520. (On Time performance: 89 - Average Delay: 3 minutes)
Southwest Airlines
- Flight Number: WN2869. (On Time performance: 94 - Average Delay: 3 minutes)
- Flight Number: WN3658. (On Time performance: 86 - Average Delay: 8 minutes)
- Flight Number: WN4021. (On Time performance: 100 - Average Delay: 0 minutes)
- Flight Number: WN4022. (On Time performance: 78 - Average Delay: 10 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 Weekday: We have gathered available data from last six months, spanning from October 05, 2025 to October 26, 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.
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
Delays analyzed by Weekday: We have gathered available data from last six months, spanning from October 05, 2025 to October 26, 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.
Last Past Flights WN4020
No flights for WN4020 were scheduled in the past month. The last flight took place on Friday, February 13, 2026