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Flight Reliability

WN 2870 · Southwest Airlines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and WN 2870 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

67%
Arrive within 15 minutes
15 min
Average arrival delay
0.4%
Cancelled
4 min
Median arrival delay

Based on 474 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon59%(68 flights)
  • Tue73%(67 flights)
  • Wed74%(66 flights)
  • Thu61%(69 flights)
  • Fri59%(69 flights)
  • Sat86%(71 flights)
  • Sun55%(60 flights)
On-time by departure window
  • 6–9 AM86%(101 flights)
  • 9 AM–12 PM77%(35 flights)
  • 12–3 PM77%(95 flights)
  • 3–6 PM53%(101 flights)
  • 6–9 PM55%(104 flights)
  • 9 PM–12 AM53%(34 flights)
On-time trend by month
75%
May

Jun 58% → May 75% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202558%48
July 202555%55
August 202563%68
September 202544%68
October 202561%31
November 202582%28
December 202590%31
February 202680%10
March 202696%27
April 202681%48
May 202675%51
Departures on time
63%
Diverted
0.4%
Flights flown
470
Months covered
12

Keep nerding

Based on 474 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.