DL1188

DL1188 (Delta Air Lines) is a multi-stop service on 7 routes, busiest Salt Lake City to Pittsburgh. Of 1,092 departures recorded from November 2024 to July 2026, 84.1% 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
January62620.0%
February56560.0%
March62620.0%
April60600.0%
May62620.0%
June1460▲ 328.6%
July2162▲ 195.2%
August42––
September50––
October54–in progress
November52––
December56––
Year to date (Jan–Jul)337424▲ 25.8%

according to the US BTS · November 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
January83.9%85.0%▲ 1.3%
February71.4%89.3%▲ 25.0%
March79.0%86.2%▲ 9.1%
April85.0%95.0%▲ 11.8%
May82.3%96.8%▲ 17.6%
June92.9%78.3%▼ 15.6%
July85.0%79.0%▼ 7.0%
August90.5%––
September90.0%––
October92.6%–in progress
November86.0%––
December72.9%––
Year-to-date average (Jan–Jul)82.8%87.1%▲ 5.2%

according to the US BTS · November 2024 → July 2026

Average departure delay by month

All legs combined

according to the US BTS · November 2024 → July 2026

Cancelled departures by month

All legs combined
The most recent periods19 periods
PeriodCancelled 2025Cancelled 2026Change vs last year
January02–
February00–
March04–
April00–
May00–
June00–
July10▼ 100.0%
August0––
September0––
October0–in progress
November2––
December8––
Year to date (Jan–Jul)16▲ 500.0%

according to the US BTS · November 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 98.4% 1,075
  • Cancelled 1.6% 17

Share of all recorded flights in the period, all legs. · Nov 23, 2024 → Jul 31, 2026

On time, leg by leg

  1. SLC–PIT420 88.9%
  2. PIT–SLC419 77.6%
  3. ORD–LGA137 81.3%
  4. LGA–ORD112 93.4%

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

Legs flown under this number

4
Monthly figures
PeriodDepartures With departure delay recordedOn time Cancelled
November 2024 15 15 73.3% 0
December 2024 62 62 72.6% 0
January 2025 62 62 83.9% 0
February 2025 56 56 71.4% 0
March 2025 62 62 79.0% 0
April 2025 60 60 85.0% 0
May 2025 62 62 82.3% 0
June 2025 14 14 92.9% 0
July 2025 21 20 85.0% 1
August 2025 42 42 90.5% 0
September 2025 50 50 90.0% 0
October 2025 54 54 92.6% 0
November 2025 52 50 86.0% 2
December 2025 56 48 72.9% 8
January 2026 62 60 85.0% 2
February 2026 56 56 89.3% 0
March 2026 62 58 86.2% 4
April 2026 60 60 95.0% 0
May 2026 62 62 96.8% 0
June 2026 60 60 78.3% 0
July 2026 62 62 79.0% 0

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