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Flight Reliability

WN 3373 · Southwest Airlines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and WN 3373 moved between routes during this period. Numbers below combine all of them, so treat them as background, not a verdict. For a cleaner answer, check the route you are actually flying.

Combined across all its routes

70%
Arrive within 15 minutes
8 min
Average arrival delay
0%
Cancelled
0 min
Median arrival delay

Based on 231 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon73%(40 flights)
  • Tue73%(33 flights)
  • Wed63%(32 flights)
  • Thu66%(32 flights)
  • Fri67%(33 flights)
  • Sat62%(21 flights)
  • Sun83%(40 flights)
On-time by departure window
  • 3–6 AM—(1 flights)
  • 6–9 AM71%(17 flights)
  • 9 AM–12 PM95%(20 flights)
  • 12–3 PM67%(27 flights)
  • 3–6 PM66%(83 flights)
  • 6–9 PM—(9 flights)
  • 9 PM–12 AM69%(74 flights)
On-time trend by month
55%
May

Jun 87% → May 55% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202587%15
November 202575%28
December 202568%31
January 202669%32
February 202683%35
March 202664%25
April 202668%28
May 202655%31
Departures on time
68%
Diverted
0%
Flights flown
231
Months covered
11

Keep nerding

Based on 231 historical flights, because apparently we checked. Historical flight data: U.S. Bureau of Transportation Statistics, June 2025 – May 2026. Data through May 2026. How we calculate this.