Flight number record
MQ 4088
Envoy Air · Bentonville to Chicago
- Route
- XNA → ORD
- Departs
- 05:06
- Flights
- 322
- Period
- September 2025 to August 2026
Historical statistics for September 2025 to August 2026, not live status. For today’s MQ 4088, 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 4088 earns an A+. More than four flights in five arrive inside the 15-minute window the DOT uses to define an on-time arrival, which puts it 9 points better than the national rate of 77.3%. When something does go wrong the average delay runs about 2.4 hours. That rests on 322 flights, with a median arrival 15 minutes early.
Set against the rest of the country, MQ 4088's record is 9 points better than the US average of 77.3%. That gap is worth roughly 86 fewer late arrivals for every thousand flights.
Key figures
On time
85.9%
Arrivals under 15 minutes late, of 319 completed flights
Avg delay
143 min
Across delayed arrivals only, not all flights
Cancelled
0.93%
National rate is 1.89%
1 hour+ late
5.3%
National rate is 8.3%
These figures cover 322 flights between September 2025 and August 2026. The median arrival is 15 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 4088 flies
MQ 4088 flies XNA to ORD without a single fixed slot. Its most common scheduled departure was 05:06, used on 39 of 322 flights, with 07:05 (37 flights) and 05:23 (33 flights) next.
- Departs 05:0639 flights12.1%
- Departs 07:0537 flights11.5%
- Departs 05:2333 flights10.2%
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 05:06 departure sits in the 5am–8am window. Across every US flight scheduled in that window the on-time rate is 89.3%, and MQ 4088 runs 3 points worse at 85.9%. Early departures usually start with an aircraft that has not flown yet that day, which is most of why the window does well.
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Against the route
MQ 4088 next to XNA to ORD
Every carrier on XNA to ORD combined arrived on time 77.3% of the time across 1,895 flights, so MQ 4088 is 9 points ahead of it. Envoy flew 1,603 flights on the same city pair under all its flight numbers, including this one, and those ran 77.0% on time. Across its whole network Envoy Air managed 81.0%, which this flight beats by 5 points.
| Compared with | Flights | On time | Avg delay | Cancelled | Grade |
|---|---|---|---|---|---|
| MQ 4088thin sample | 322 | 85.9% | 143 min | 0.93% | A+ |
| All Envoy Air on XNA–ORD | 1,603 | 77.0% | 88 min | 1.68% | B |
| All carriers on XNA–ORD | 1,895 | 77.3% | 87 min | 2.11% | B |
| Envoy Air, whole network | 320,362 | 81.0% | 70 min | 2.19% | B |
Across the year
MQ 4088 quarter by quarter
MQ 4088 did not run the same all year. Its best quarter was Jul–Sep 2026 at 93.5% on time and its weakest Oct–Dec 2025 at 82.1%, a swing of 11 points on roughly 81 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 202516 flights—
- Oct–Dec 202585 flights82.1%
- Jan–Mar 202676 flights85.1%
- Apr–Jun 202683 flights83.1%
- Jul–Sep 202662 flights93.5%
Scale runs 75% to 100%. Rows with fewer than 30 flights show a dash.
By weekday, MQ 4088 ranged from 81.1% on Monday to 90.7% on Saturday. With about 46 flights behind each day, a spread of 10 points is inside normal variation, so the day you fly is not worth changing for this flight.
Arrival by arrival
How late MQ 4088 runs when it is late
MQ 4088 often beats the schedule: 165 of 319 completed flights, 52%, arrived 15 minutes or more early. The 45 late arrivals split 11 under half an hour, 17 between 30 and 60 minutes, and 17 an hour or more.
- 15+ min early165 flights51.7%
- Within 15 min109 flights34.2%
- 15–29 min late11 flights3.4%
- 30–59 min late17 flights5.3%
- 1–2 hours late4 flights1.3%
- 2+ hours late13 flights4.1%
Scale runs 0% to 100%.
Share of 319 completed flights by arrival against schedule.
4 of 31 late departures made up the time and arrived on time, 13% of them. In the other direction, 18 flights left on time yet arrived 15 minutes late or more, so that delay built up after pushback: in the air, in a holding pattern or on the ground at ORD.
The worst days
Worst days for MQ 4088
The latest arrival of the period was on 11 June 2026, 15 hours 46 minutes behind schedule; most of its delay minutes were filed as carrier-caused (crew, maintenance, fuelling, baggage). Three of the five worst days fell in May 2026.
| Date | Arrived late by | Largest filed cause |
|---|---|---|
| 11 June 2026 | 15 hours 46 minutes | Carrier |
| 15 May 2026 | 14 hours | Late-arriving aircraft |
| 11 May 2026 | 13 hours 52 minutes | Late-arriving aircraft |
| 16 May 2026 | 8 hours 22 minutes | Carrier |
| 13 March 2026 | 5 hours 27 minutes | National Airspace System |
Delay causes
Why MQ 4088 runs late
Carriers report a reason for every delay minute they cause, in five DOT categories. The split below is by minutes, not by number of flights, so a handful of very long weather delays weighs as much as many short ones. It covers 6,419 reported delay minutes.
- 41%Carrier
- 32%Late-arriving aircraft
- 23%National Airspace System
- 4%Extreme weather
The largest share of delay minutes, 41%, falls under carrier control: crew scheduling, maintenance, fuelling, baggage. It accounts for 2,607 of the 6,419 delay minutes reported here. The split is drawn from 6,419 delay minutes reported on MQ 4088.
Cancellations sit at 0.93% against a national 1.89%, which is ordinary. Diversions add another 0.00%.
Connections and routes
What a delay on this flight costs
5.3% 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 2.4 hours, which a normal layover absorbs.
The 522 miles between these two airports put this in the middle of the US network, around two and a half to three hours of block time. That is enough cruise to absorb a ten-minute late pushback and not enough to absorb thirty.
Every one of the 322 flights under MQ 4088 in the data flew XNA to ORD. The number was not reused on any other city pair, which makes this a clean record of one route.
One caution: this is a thin sample. 322 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 4088
For a booking, MQ 4088 has one of the better records a US domestic flight can show: 85.9% on time and 0.93% cancelled. That is a base rate, not a promise about any single day.
Related
Where to go next
- XNA to ORD, every carrier and departure
- ORD to XNA, the return direction
- Chicago O'Hare International (ORD) 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
- Worst months to fly in the US, ranked by the data
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.