WN170

WN170 (Southwest Airlines) is a multi-stop service on 46 routes, busiest San Antonio to Nashville. Of 834 departures recorded from October 2024 to July 2026, 78.9% left on time, according to the US BTS.

Recorded departures by month

All legs under this number combined; see the leg table.

The most recent periods19 periods
PeriodDepartures 2025Departures 2026Change vs last year
January2934▲ 17.2%
February2628▲ 7.7%
March31310.0%
April3930▼ 23.1%
May4431▼ 29.5%
June2792▲ 240.7%
July27101▲ 274.1%
August28––
September26––
October31–in progress
November35––
December44––
Year to date (Jan–Jul)223347▲ 55.6%

according to the US BTS · October 2024 → July 2026

On-time departures by month

All legs combined

On time = departure within 15 minutes of schedule. Non-cancelled flights with a recorded delay only.

The most recent periods19 periods
PeriodOn time 2025On time 2026Change vs last year
January85.7%90.9%▲ 6.1%
February76.9%82.1%▲ 6.8%
March71.0%83.9%▲ 18.2%
April84.6%96.7%▲ 14.2%
May88.6%87.1%▼ 1.7%
June81.5%57.6%▼ 29.3%
July85.2%66.3%▼ 22.1%
August57.1%––
September73.1%––
October83.3%–in progress
November97.1%––
December93.2%––
Year-to-date average (Jan–Jul)81.9%80.7%▼ 1.6%

according to the US BTS · October 2024 → July 2026

Average departure delay by month

All legs combined

according to the US BTS · October 2024 → July 2026

Cancelled departures by month

All legs combined
The most recent periods19 periods
PeriodCancelled 2025Cancelled 2026Change vs last year
January110.0%
February00–
March00–
April00–
May00–
June00–
July00–
August0––
September0––
October1–in progress
November0––
December0––
Year to date (Jan–Jul)110.0%

according to the US BTS · October 2024 → July 2026

This is not a forecast

This is a historical record of departures already flown, not a forecast for your flight.

This number flies several legs

Several legs: the headline figure averages all of them. See the leg table.

Cancellation share

  • Not cancelled 99.6% 831
  • Cancelled 0.4% 3

Share of all recorded flights in the period, all legs. · Oct 12, 2024 → Jul 31, 2026

On time, leg by leg

  1. SAT–BNA66 87.7%
  2. BNA–LAS61 91.8%
  3. LAS–LAX53 84.9%
  4. SNA–OAK50 50.0%
  5. SEA–SJC50 66.0%
  6. LAS–OAK42 85.7%
  7. LAS–SNA34 47.1%
  8. ABQ–LAS34 64.7%

Departures within 15 minutes of schedule; small figure = departures recorded.

Legs flown under this number

12
Monthly figures
PeriodDepartures With departure delay recordedOn time Cancelled
October 2024 32 32 96.9% 0
November 2024 33 33 72.7% 0
December 2024 35 35 80.0% 0
January 2025 29 28 85.7% 1
February 2025 26 26 76.9% 0
March 2025 31 31 71.0% 0
April 2025 39 39 84.6% 0
May 2025 44 44 88.6% 0
June 2025 27 27 81.5% 0
July 2025 27 27 85.2% 0
August 2025 28 28 57.1% 0
September 2025 26 26 73.1% 0
October 2025 31 30 83.3% 1
November 2025 35 35 97.1% 0
December 2025 44 44 93.2% 0
January 2026 34 33 90.9% 1
February 2026 28 28 82.1% 0
March 2026 31 31 83.9% 0
April 2026 30 30 96.7% 0
May 2026 31 31 87.1% 0
June 2026 92 92 57.6% 0
July 2026 101 101 66.3% 0

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