OH5639

OH5639 (PSA Airlines) is a multi-stop service on 24 routes, busiest Philadelphia to Wilmington. Of 607 departures recorded from October 2024 to July 2026, 69.4% left on time, according to the US BTS.

Recorded departures by month

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

Months without data are left blank.

The most recent periods18 periods
PeriodDepartures 2025Departures 2026Change vs last year
January18▲ 700.0%
February521▲ 320.0%
March5231▼ 40.4%
April5754▼ 5.3%
May6258▼ 6.5%
June3452▲ 52.9%
July313▼ 90.3%
August31––
September2––
October––in progress
November52––
December34––
Year to date (Jan–Jul)242227▼ 6.2%

according to the US BTS · October 2024 → July 2026

On-time departures by month

All legs combined

Months without data are left blank.

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

The most recent periods18 periods
PeriodOn time 2025On time 2026Change vs last year
January100.0%66.7%▼ 33.3%
February66.7%73.7%▲ 10.5%
March73.1%67.7%▼ 7.3%
April72.7%64.2%▼ 11.8%
May73.3%81.0%▲ 10.5%
June69.0%50.0%▼ 27.5%
July58.3%100.0%▲ 71.4%
August66.7%––
September50.0%––
October––in progress
November71.2%––
December56.3%––
Year-to-date average (Jan–Jul)73.3%71.9%▼ 1.9%

according to the US BTS · October 2024 → July 2026

Average departure delay by month

All legs combined

Months without data are left blank.

according to the US BTS · October 2024 → July 2026

Cancelled departures by month

All legs combined

Months without data are left blank.

The most recent periods18 periods
PeriodCancelled 2025Cancelled 2026Change vs last year
January02–
February220.0%
March00–
April21▼ 50.0%
May20▼ 100.0%
June54▼ 20.0%
July70▼ 100.0%
August1––
September0––
October––in progress
November0––
December2––
Year to date (Jan–Jul)189▼ 50.0%

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 94.7% 575
  • Cancelled 5.3% 32

Share of all recorded flights in the period, all legs. · Oct 15, 2024 → Jul 4, 2026

On time, leg by leg

  1. PHL–ILM90 62.3%
  2. ECP–DCA83 65.9%
  3. DCA–ECP83 70.7%
  4. MHT–DCA54 68.6%
  5. IAH–DCA36 54.6%
  6. DCA–IAH36 62.9%
  7. PHL–ATL31 80.7%
  8. MOB–DFW31 71.4%

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

Legs flown under this number

10
Monthly figures
PeriodDepartures With departure delay recordedOn time Cancelled
October 2024 12 12 100.0% 0
November 2024 6 4 100.0% 2
December 2024 1 1 100.0% 0
January 2025 1 1 100.0% 0
February 2025 5 3 66.7% 2
March 2025 52 52 73.1% 0
April 2025 57 55 72.7% 2
May 2025 62 60 73.3% 2
June 2025 34 29 69.0% 5
July 2025 31 24 58.3% 7
August 2025 31 30 66.7% 1
September 2025 2 2 50.0% 0
November 2025 52 52 71.2% 0
December 2025 34 32 56.3% 2
January 2026 8 6 66.7% 2
February 2026 21 19 73.7% 2
March 2026 31 31 67.7% 0
April 2026 54 53 64.2% 1
May 2026 58 58 81.0% 0
June 2026 52 48 50.0% 4
July 2026 3 3 100.0% 0

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