Informational Guide to San Diego Airport (SAN) - NON OFFICIAL

WN4355 Southwest Airlines - Flight Status

Below, you can find details about Southwest Airlines flight WN4355, which currently operates between the airports of San Diego - San Diego International Airport (Airport Code SAN) and Denver - Denver International Airport (Airport Code DEN).
This flight data pertains specifically to the flight's details for Thursday, March 12, 2026.

WN4355 On Time performance:
86
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

WN4355 Southwest Airlines to Denver

Landed - On-time
Flight Status for Thursday March 12, 2026
This flight is also scheduled for Today (March 13, 2026). See it here

Airline information

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

Departure

San Diego (SAN)
March 12, 2026
San Diego International Airport
Departed at:
07:23 pm
Terminal:
1
Gate:
105
Scheduled Departure Time: 07:30 pm

Arrival

Denver (DEN)
March 12, 2026
Denver International Airport
Arrived at:
10:39 pm
Terminal:
-
Gate:
C26
Scheduled Arrival Time: 11:00 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.san-diego-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 WN4355?
The flight WN4355 is scheduled to flight on daily basis.

Which is the distance of flight WN4355?
The distance between the two airports is 852 miles.

Which is the flight time of flight WN4355?
The scheduled flight time gate to gate is: 02:30 hours.
The real flight time gate to gate on average is: 02:18 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 San Diego: 2026-03-13 18:02:35
Current Time in Denver: 2026-03-13 19:02:35

Alternative Flights

The following airlines serves the same route between San Diego and Denver:

Alaska Airlines
- Flight Number: AS1429. (On Time performance: 67 - Average Delay: 21 minutes)
- Flight Number: AS1492. (On Time performance: 97 - Average Delay: 2 minutes)
- Flight Number: AS3046. (On Time performance: 86 - Average Delay: 8 minutes)

Frontier Airlines
- Flight Number: F92818. (On Time performance: 83 - Average Delay: 14 minutes)
- Flight Number: F94928. (On Time performance: 69 - Average Delay: 29 minutes)
- Flight Number: F94990. (On Time performance: 67 - Average Delay: 31 minutes)

United Airlines
- Flight Number: UA1233. (On Time performance: 95 - Average Delay: 6 minutes)
- Flight Number: UA1337. (On Time performance: 83 - Average Delay: 11 minutes)
- Flight Number: UA1565. (On Time performance: 79 - Average Delay: 29 minutes)
- Flight Number: UA1714. (On Time performance: 71 - Average Delay: 15 minutes)
- Flight Number: UA2476. (On Time performance: 90 - Average Delay: 12 minutes)
- Flight Number: UA519. (On Time performance: 92 - Average Delay: 16 minutes)
- Flight Number: UA682. (On Time performance: 79 - Average Delay: 13 minutes)
- Flight Number: UA8. (On Time performance: 90 - Average Delay: 13 minutes)

Southwest Airlines
- Flight Number: WN1136. (On Time performance: 98 - Average Delay: 3 minutes)
- Flight Number: WN1604. (On Time performance: 60 - Average Delay: 37 minutes)
- Flight Number: WN2326.
- Flight Number: WN2480. (On Time performance: 71 - Average Delay: 15 minutes)
- Flight Number: WN3387. (On Time performance: 92 - Average Delay: 3 minutes)
- Flight Number: WN3388. (On Time performance: 69 - Average Delay: 12 minutes)
- Flight Number: WN3389. (On Time performance: 69 - Average Delay: 175 minutes)
- Flight Number: WN3390. (On Time performance: 76 - Average Delay: 178 minutes)
- Flight Number: WN3945. (On Time performance: 91 - Average Delay: 5 minutes)
- Flight Number: WN3946. (On Time performance: 74 - Average Delay: 14 minutes)
- Flight Number: WN4352. (On Time performance: 43 - Average Delay: 19 minutes)
- Flight Number: WN4353. (On Time performance: 67 - Average Delay: 36 minutes)
- Flight Number: WN4397. (On Time performance: 100 - Average Delay: 0 minutes)
- Flight Number: WN684. (On Time performance: 100 - Average Delay: 3 minutes)
- Flight Number: WN999.

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 March 05, 2026 to March 11, 2026, we have obtained these figures.
Total number of flights: 7
On Time: 6 ( 86 % )
Moderate Delay: 0 ( 0 % )
Significant Delay: 0 ( 0 % )
Major Delay: 1 ( 14 % )
Canceled: 0 ( 0 % )
Diverted: 0 ( 0 % )

Average Delay: 17 minutes.
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 WN4355

Date
Departure
Arrival
Duration
Aircraft
Status
Thursday
12 March
07:23 pm
San Diego (SAN)
10:39 pm
Denver (DEN)
02h 16min
Boeing 737-800
Boeing 737-800
Landed - On-time
Wednesday
11 March
01:40 pm
San Diego (SAN)
04:52 pm
Denver (DEN)
02h 12min
Boeing 737MAX
Boeing 737MAX
Landed - On-time
Tuesday
10 March
01:36 pm
San Diego (SAN)
05:03 pm
Denver (DEN)
02h 27min
Boeing 737MAX
Boeing 737MAX
Landed - On-time
Monday
09 March
07:33 pm
San Diego (SAN)
11:00 pm
Denver (DEN)
02h 27min
Boeing 737-800
Boeing 737-800
Landed - On-time
Sunday
08 March
01:24 pm
San Diego (SAN)
04:51 pm
Denver (DEN)
02h 27min
Boeing 737MAX
Boeing 737MAX
Landed - On-time
Saturday
07 March
07:20 pm
San Diego (SAN)
10:41 pm
Denver (DEN)
02h 21min
Boeing 737-700
Boeing 737-700
Landed - On-time
Friday
06 March
09:32 pm
San Diego (SAN)
12:45 am
Denver (DEN)
02h 13min
Boeing 737-800
Boeing 737-800
Landed - Delayed
Thursday
05 March
07:31 pm
San Diego (SAN)
10:34 pm
Denver (DEN)
02h 03min
Boeing 737MAX
Boeing 737MAX
Landed - On-time