WN1035

WN1035 (Southwest Airlines) is a multi-stop service on 29 routes, busiest Chicago to Baltimore. Of 726 departures recorded from October 2024 to July 2026, 76.4% 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
January3033▲ 10.0%
February2932▲ 10.3%
March3244▲ 37.5%
April3033▲ 10.0%
May31310.0%
June2938▲ 31.0%
July3037▲ 23.3%
August37––
September38––
October31–in progress
November41––
December42––
Year to date (Jan–Jul)211248▲ 17.5%

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
January75.9%90.6%▲ 19.5%
February89.7%65.6%▼ 26.8%
March93.8%62.8%▼ 33.0%
April83.3%37.5%▼ 55.0%
May51.6%26.7%▼ 48.3%
June100.0%81.6%▼ 18.4%
July93.3%89.2%▼ 4.4%
August73.0%––
September81.6%––
October67.7%–in progress
November97.6%––
December81.0%––
Year-to-date average (Jan–Jul)83.9%64.9%▼ 22.7%

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–
March01–
April01–
May01–
June00–
July00–
August0––
September0––
October0–in progress
November0––
December0––
Year to date (Jan–Jul)14▲ 300.0%

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 99.3% 721
  • Cancelled 0.7% 5

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

On time, leg by leg

  1. MDW–BWI65 85.9%
  2. CHS–BNA60 95.0%
  3. TPA–MDW58 28.6%
  4. LAS–TUS58 87.9%
  5. BWI–TPA58 74.1%
  6. BWI–ORF58 86.2%
  7. BWI–SRQ57 66.7%
  8. DCA–MSY50 75.5%

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

Legs flown under this number

11
Monthly figures
PeriodDepartures With departure delay recordedOn time Cancelled
October 2024 20 20 95.0% 0
November 2024 29 29 75.9% 0
December 2024 29 29 69.0% 0
January 2025 30 29 75.9% 1
February 2025 29 29 89.7% 0
March 2025 32 32 93.8% 0
April 2025 30 30 83.3% 0
May 2025 31 31 51.6% 0
June 2025 29 29 100.0% 0
July 2025 30 30 93.3% 0
August 2025 37 37 73.0% 0
September 2025 38 38 81.6% 0
October 2025 31 31 67.7% 0
November 2025 41 41 97.6% 0
December 2025 42 42 81.0% 0
January 2026 33 32 90.6% 1
February 2026 32 32 65.6% 0
March 2026 44 43 62.8% 1
April 2026 33 32 37.5% 1
May 2026 31 30 26.7% 1
June 2026 38 38 81.6% 0
July 2026 37 37 89.2% 0

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