MQ3521

MQ3521 (Envoy Air) is a multi-stop service on 15 routes, busiest Bismarck to Dallas-Fort Worth. Of 685 departures recorded from October 2024 to July 2026, 86.5% 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
January2557▲ 128.0%
February2839▲ 39.3%
March3127▼ 12.9%
April2229▲ 31.8%
May3031▲ 3.3%
June30300.0%
July31310.0%
August31––
September30––
October31–in progress
November54––
December33––
Year to date (Jan–Jul)197244▲ 23.9%

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
January76.0%90.4%▲ 18.9%
February82.1%89.7%▲ 9.3%
March90.3%52.2%▼ 42.2%
April81.8%89.3%▲ 9.1%
May96.7%87.1%▼ 9.9%
June93.3%93.3%0.0%
July87.1%100.0%▲ 14.8%
August93.6%––
September72.4%––
October87.1%–in progress
November87.8%––
December78.1%––
Year-to-date average (Jan–Jul)86.8%86.0%▼ 0.9%

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
January05–
February00–
March04–
April01–
May00–
June00–
July01–
August0––
September1––
October0–in progress
November5––
December1––
Year to date (Jan–Jul)011

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 97.1% 665
  • Cancelled 2.9% 20

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

On time, leg by leg

  1. BIS–DFW279 89.6%
  2. DFW–BRO89 88.0%
  3. BRO–DFW88 90.2%
  4. ORD–EVV43 66.7%
  5. ORD–IAH34 88.2%
  6. DFW–LFT33 71.9%

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

Legs flown under this number

6
Monthly figures
PeriodDepartures With departure delay recordedOn time Cancelled
October 2024 38 38 94.7% 0
November 2024 25 23 69.6% 2
December 2024 2 2 100.0% 0
January 2025 25 25 76.0% 0
February 2025 28 28 82.1% 0
March 2025 31 31 90.3% 0
April 2025 22 22 81.8% 0
May 2025 30 30 96.7% 0
June 2025 30 30 93.3% 0
July 2025 31 31 87.1% 0
August 2025 31 31 93.6% 0
September 2025 30 29 72.4% 1
October 2025 31 31 87.1% 0
November 2025 54 49 87.8% 5
December 2025 33 32 78.1% 1
January 2026 57 52 90.4% 5
February 2026 39 39 89.7% 0
March 2026 27 23 52.2% 4
April 2026 29 28 89.3% 1
May 2026 31 31 87.1% 0
June 2026 30 30 93.3% 0
July 2026 31 30 100.0% 1

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