WN1883

WN1883 (Southwest Airlines) is a multi-stop service on 30 routes, busiest Denver to Tampa. Of 672 departures recorded from October 2024 to July 2026, 73.8% 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
January5036▼ 28.0%
February3733▼ 10.8%
March2732▲ 18.5%
April2533▲ 32.0%
May2635▲ 34.6%
June307▼ 76.7%
July314▼ 87.1%
August34––
September34––
October27–in progress
November30––
December31––
Year to date (Jan–Jul)226180▼ 20.4%

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
January88.0%94.1%▲ 7.0%
February83.8%78.8%▼ 6.0%
March66.7%71.9%▲ 7.8%
April52.0%78.8%▲ 51.5%
May23.1%64.7%▲ 180.4%
June73.3%100.0%▲ 36.4%
July71.0%75.0%▲ 5.7%
August73.5%––
September94.1%––
October66.7%–in progress
November70.0%––
December54.8%––
Year-to-date average (Jan–Jul)65.4%80.5%▲ 23.0%

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
January02–
February00–
March00–
April00–
May01–
June00–
July00–
August0––
September0––
October0–in progress
November0––
December0––
Year to date (Jan–Jul)03

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% 669
  • Cancelled 0.4% 3

Share of all recorded flights in the period, all legs. · Oct 12, 2024 → Jul 25, 2026

On time, leg by leg

  1. DEN–TPA64 64.1%
  2. SMF–SAN62 71.0%
  3. LAS–PHX58 73.7%
  4. BWI–PWM57 86.0%
  5. MCI–MDW51 72.6%
  6. DEN–MSY50 32.0%
  7. SAN–AUS47 91.3%
  8. CLE–PHX33 72.7%

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 20 20 100.0% 0
November 2024 38 38 81.6% 0
December 2024 52 52 67.3% 0
January 2025 50 50 88.0% 0
February 2025 37 37 83.8% 0
March 2025 27 27 66.7% 0
April 2025 25 25 52.0% 0
May 2025 26 26 23.1% 0
June 2025 30 30 73.3% 0
July 2025 31 31 71.0% 0
August 2025 34 34 73.5% 0
September 2025 34 34 94.1% 0
October 2025 27 27 66.7% 0
November 2025 30 30 70.0% 0
December 2025 31 31 54.8% 0
January 2026 36 34 94.1% 2
February 2026 33 33 78.8% 0
March 2026 32 32 71.9% 0
April 2026 33 33 78.8% 0
May 2026 35 34 64.7% 1
June 2026 7 7 100.0% 0
July 2026 4 4 75.0% 0

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