WN1810

WN1810 (Southwest Airlines) is a multi-stop service on 25 routes, busiest Valparaiso to Nashville. Of 624 departures recorded from October 2024 to July 2026, 72.7% 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
January1623▲ 43.8%
February2122▲ 4.8%
March3346▲ 39.4%
April2734▲ 25.9%
May2131▲ 47.6%
June30300.0%
July31310.0%
August30––
September30––
October18–in progress
November38––
December44––
Year to date (Jan–Jul)179217▲ 21.2%

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
January93.8%82.6%▼ 11.9%
February90.5%81.0%▼ 10.5%
March77.4%54.6%▼ 29.5%
April88.9%47.1%▼ 47.1%
May71.4%16.1%▼ 77.4%
June70.0%43.3%▼ 38.1%
July58.1%43.3%▼ 25.4%
August86.7%––
September100.0%––
October66.7%–in progress
November94.7%––
December88.6%––
Year-to-date average (Jan–Jul)78.6%52.6%▼ 33.1%

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
January00–
February01–
March220.0%
April00–
May00–
June00–
July01–
August0––
September0––
October0–in progress
November0––
December0––
Year to date (Jan–Jul)24▲ 100.0%

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 99.0% 618
  • Cancelled 1.0% 6

Share of all recorded flights in the period, all legs. · Oct 14, 2024 → Jul 31, 2026

On time, leg by leg

  1. VPS–BNA86 96.5%
  2. SFO–BNA61 62.3%
  3. MSY–HOU58 43.9%
  4. DEN–BWI58 25.9%
  5. MCO–STL57 96.5%
  6. BWI–PHX45 95.6%
  7. LAS–RNO39 79.0%
  8. SRQ–CMH33 84.4%

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

Legs flown under this number

8
Monthly figures
PeriodDepartures With departure delay recordedOn time Cancelled
October 2024 7 7 85.7% 0
November 2024 29 29 89.7% 0
December 2024 32 32 96.9% 0
January 2025 16 16 93.8% 0
February 2025 21 21 90.5% 0
March 2025 33 31 77.4% 2
April 2025 27 27 88.9% 0
May 2025 21 21 71.4% 0
June 2025 30 30 70.0% 0
July 2025 31 31 58.1% 0
August 2025 30 30 86.7% 0
September 2025 30 30 100.0% 0
October 2025 18 18 66.7% 0
November 2025 38 38 94.7% 0
December 2025 44 44 88.6% 0
January 2026 23 23 82.6% 0
February 2026 22 21 81.0% 1
March 2026 46 44 54.6% 2
April 2026 34 34 47.1% 0
May 2026 31 31 16.1% 0
June 2026 30 30 43.3% 0
July 2026 31 30 43.3% 1

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