Flight number record
MQ 4173
Envoy Air · Dallas-Fort Worth to Corpus Christi
- Route
- DFW → CRP
- Departs
- 20:43
- Flights
- 257
- Period
- September 2025 to August 2026
Historical statistics for September 2025 to August 2026, not live status. For today’s MQ 4173, check with Envoy Air. Envoy Air flies under contract for larger airlines, so a ticket for this flight may show a different airline code and number.
MQ 4173 lands a B+, about a point worse than the national rate of 77.3%. About one flight in four arrives 15 minutes late or worse, and those flights are late by about an hour on average. That rests on 257 flights, with a median arrival 7 minutes early.
Key figures
On time
76.5%
Arrivals under 15 minutes late, of 255 completed flights
Avg delay
63 min
Across delayed arrivals only, not all flights
Cancelled
0.78%
National rate is 1.89%
1 hour+ late
7.1%
National rate is 8.3%
These figures cover 257 flights between September 2025 and August 2026. The median arrival is 7 minutes early, which is the part an average hides: most flights here are fine, and the on-time rate is decided by a tail of badly late ones. On-time means under 15 minutes late, the DOT's own threshold.
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Schedule
When MQ 4173 flies
MQ 4173 flies DFW to CRP without a single fixed slot. Its most common scheduled departure was 20:43, used on 75 of 257 flights, with 21:30 (44 flights) and 18:22 (32 flights) next.
- Departs 20:4375 flights29.2%
- Departs 21:3044 flights17.1%
- Departs 18:2232 flights12.5%
Scale runs 0% to 100%.
Share of scheduled departures at each local time. Times used on fewer than one flight in ten are not listed.
A 20:43 departure sits in the 8pm–5am window. Across every US flight scheduled in that window the on-time rate is 70.1%, and MQ 4173 runs 6 points better at 76.5%. By that time of day most aircraft have flown several legs already, and whatever went wrong earlier is still in the schedule.
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Against the route
MQ 4173 next to DFW to CRP
Every carrier on DFW to CRP combined arrived on time 81.4% of the time across 2,545 flights, so MQ 4173 is 5 points behind it. Envoy flew 1,863 flights on the same city pair under all its flight numbers, including this one, and those ran 83.8% on time. Across its whole network Envoy Air managed 81.0%, which this flight trails by 5 points.
| Compared with | Flights | On time | Avg delay | Cancelled | Grade |
|---|---|---|---|---|---|
| MQ 4173thin sample | 257 | 76.5% | 63 min | 0.78% | B+ |
| All Envoy Air on DFW–CRP | 1,863 | 83.8% | 55 min | 1.72% | B |
| All carriers on DFW–CRP | 2,545 | 81.4% | 70 min | 2.63% | B |
| Envoy Air, whole network | 320,362 | 81.0% | 70 min | 2.19% | B |
Across the year
MQ 4173 quarter by quarter
MQ 4173 did not run the same all year. Its best quarter was Jan–Mar 2026 at 89.7% on time and its weakest Apr–Jun 2026 at 61.8%, a swing of 28 points on roughly 64 flights a quarter. The twelve-month rate averages over that, so if you are flying in a weak quarter the quarter's own figure is the better guide.
- Jul–Sep 202510 flights—
- Oct–Dec 202556 flights83.9%
- Jan–Mar 202639 flights89.7%
- Apr–Jun 202691 flights61.8%
- Jul–Sep 202661 flights83.6%
Scale runs 55% to 95%. Rows with fewer than 30 flights show a dash.
By weekday, MQ 4173 did best on Wednesday at 84.8% on time and worst on Monday at 71.8%. Each day rests on about 37 flights, so a gap of 13 points is worth noticing but could still narrow in another year.
Arrival by arrival
How late MQ 4173 runs when it is late
MQ 4173 often beats the schedule: 67 of 255 completed flights, 26%, arrived 15 minutes or more early. The 60 late arrivals split 22 under half an hour, 20 between 30 and 60 minutes, and 18 an hour or more.
- 15+ min early67 flights26.3%
- Within 15 min128 flights50.2%
- 15–29 min late22 flights8.6%
- 30–59 min late20 flights7.8%
- 1–2 hours late12 flights4.7%
- 2+ hours late6 flights2.4%
Scale runs 0% to 100%.
Share of 255 completed flights by arrival against schedule.
12 of 68 late departures made up the time and arrived on time, 18% of them. Only 4 left on time and still arrived late.
The worst days
Worst days for MQ 4173
The latest arrival of the period was on 30 May 2026, 10 hours 4 minutes behind schedule; most of its delay minutes were filed as a late-arriving aircraft. Three of the five worst days fell in May 2026.
| Date | Arrived late by | Largest filed cause |
|---|---|---|
| 30 May 2026 | 10 hours 4 minutes | Late-arriving aircraft |
| 24 May 2026 | 3 hours 20 minutes | Late-arriving aircraft |
| 13 July 2026 | 2 hours 55 minutes | Late-arriving aircraft |
| 25 October 2025 | 2 hours 17 minutes | Late-arriving aircraft |
| 25 May 2026 | 2 hours 6 minutes | Late-arriving aircraft |
Delay causes
Why MQ 4173 runs late
Late-arriving aircraft accounts for 67% of the 3,747 delay minutes carriers reported here, and the remaining four split what is left.
- 67%Late-arriving aircraft
- 18%Carrier
- 8%Extreme weather
- 7%National Airspace System
67% of delay minutes trace back to a late-arriving aircraft, meaning the plane was already behind before it got here. Across 3,747 reported delay minutes here, that single category outweighs weather by 8 to one. The split is drawn from 3,747 delay minutes reported on MQ 4173.
Cancellations are rare at 0.78%, below the national 1.89% and low enough to earn the plus on the grade. Roughly one flight in 100 is called off; the risk here is arriving late, not not arriving.
Connections and routes
What a delay on this flight costs
7.1% of arrivals land an hour or more late, close to the national 8.3%, so a 60 to 75 minute layover is reasonable here while anything under 45 minutes is a bet. Most delays on this route last about an hour, which a normal layover absorbs.
The same number turns up on two other city pairs in the data, including GRK to DFW (29) and DFW to GRK (14), but none flew often enough under MQ 4173 to report a rate for. Carriers move flight numbers between routes, so the figures on this page apply to DFW to CRP only.
One caution: this is a thin sample. 257 flights over twelve months is enough to clear this site's floor but not enough to pin the rate down tightly, and a single bad week moves it by more than a point. Treat the grade as a rough reading.
What to do with this
Booking MQ 4173
For a booking, read MQ 4173 as 76.5% on time with 0.78% cancelled over 257 flights. Those are rates from the past twelve months, not a forecast for any particular day.
Related
Where to go next
- DFW to CRP, every carrier and departure
- CRP to DFW, the return direction
- Dallas/Fort Worth International (DFW) delay statistics
- Envoy Air on-time record
- Every Envoy Air flight number with a record
- The most and least reliable flight numbers in the US
- Why the first flight of the morning is statistically safest
A flight number here means Envoy Air’s own number as it reports to the DOT. How the figures are computed is on the methodology page.
Source: US DOT Bureau of Transportation Statistics, on-time performance data, September 2025 to August 2026. Last updated ; recomputed monthly. How this data is collected.