Flight number record

MQ 3499

Envoy Air · Chicago to White Plains

Route: ORD → HPN
Departs: 18:31
Flights: 358
Period: July 2025 to June 2026

Historical statistics for July 2025 to June 2026, not live status. For today’s MQ 3499, 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 3499 sits in the middle of the pack with a C−. About seven flights in ten arrive on time by the DOT's definition, 5 points worse than the national rate of 77.6%. The late ones land about an hour behind schedule. That rests on 358 flights, with a median arrival 6 minutes early.

The national on-time rate over the same period is 77.6%, so MQ 3499 runs 5 points behind the country as a whole. Across a thousand flights that is about 48 extra late arrivals.

On time

72.8%

Arrivals under 15 minutes late, of 334 completed flights

Avg delay

62 min

Across delayed arrivals only, not all flights

Cancelled

6.42%

National rate is 1.81%

1 hour+ late

11.1%

National rate is 8.1%

These figures cover 358 flights between July 2025 and June 2026. Beyond the headline rate, 11.1% of arrivals land a full hour or more behind schedule. That is the number that wrecks a connection, and it is not visible in an on-time percentage alone.

Schedule

When MQ 3499 flies

MQ 3499 flies ORD to HPN without a single fixed slot. Its most common scheduled departure was 18:31, used on 58 of 358 flights, with 18:38 (54 flights) and 18:37 (45 flights) next. Carriers retime flights through the season, so the rates here blend slightly different positions in the aircraft's day.

Departs 18:3158 flights16.2%
Departs 18:3854 flights15.1%
Departs 18:3745 flights12.6%

Scale runs 0% to 100%. Rows with fewer than 30 flights show a dash.

Share of scheduled departures at each local time. Times used on fewer than one flight in ten are not listed.

A 18:31 departure sits in the 5pm–8pm window. Across every US flight scheduled in that window the on-time rate is 68.2%, and MQ 3499 runs 5 points better at 72.8%. By that time of day most aircraft have flown several legs already, and whatever went wrong earlier is still in the schedule.

Against the route

MQ 3499 next to ORD to HPN

Every carrier on ORD to HPN combined arrived on time 77.3% of the time across 1,499 flights, so MQ 3499 is 5 points behind it. Across its whole network Envoy Air managed 80.2%, which this flight trails by 7 points.

MQ 3499 against its route and carrier
Compared with	Flights	On time	Avg delay	Cancelled	Grade
MQ 3499thin sample	358	72.8%	62 min	6.42%	C−
All Envoy Air on ORD–HPN	1,499	77.3%	64 min	3.60%	B−
All carriers on ORD–HPN	1,499	77.3%	64 min	3.60%	B−
Envoy Air, whole network	315,435	80.2%	67 min	2.30%	B

Across the year

MQ 3499 quarter by quarter

Quarter by quarter MQ 3499 held fairly steady: 76.1% in Jul–Sep 2025, 70.2% in Oct–Dec 2025, 69.5% in Jan–Mar 2026 and 75.0% in Apr–Jun 2026. A spread of 7 points is about what a sample of this size moves on its own, so the annual figure is a fair summary.

Jul–Sep 202592 flights76.1%
Oct–Dec 202589 flights70.2%
Jan–Mar 202689 flights69.5%
Apr–Jun 202688 flights75.0%

Scale runs 60% to 80%. Rows with fewer than 30 flights show a dash.

By weekday, MQ 3499 did best on Saturday at 80.9% on time and worst on Thursday at 64.6%. Each day rests on about 51 flights, so a gap of 16 points is worth noticing but could still narrow in another year.

Delay causes

Why MQ 3499 runs late

One category carries most of the weight here. Late-arriving aircraft accounts for 58% of the 5,616 delay minutes carriers reported, and the remaining four split what is left. The split is by minutes rather than by flights, so a few very long delays count for as much as many short ones.

Late-arriving aircraft
58%
National Airspace System
20%
Extreme weather
11%
Carrier
11%

Extreme weather accounts for 11% of delay minutes, well above the single-digit share typical across the system. Weather delays are lumpy: they arrive as whole bad days rather than as a steady drag, so the quarterly figures above are the more useful view of the risk. The national share is 6%, so this operation carries roughly 1.8 times the usual weather exposure. The split is drawn from 5,616 delay minutes reported on MQ 3499.

Cancellations run at 6.42%, against 1.81% nationally. That is about one flight in fifteen cancelled outright. A cancelled flight is invisible in every on-time figure on this page, so the punctuality numbers above describe only the flights that actually operated.

Connections and routes

What a delay on this flight costs

For anyone connecting, the number to weigh is not the on-time rate but the tail behind it. 11.1% of arrivals land a full hour or more behind schedule, against 8.1% nationally. A 45-minute layover does not survive that, and no amount of walking quickly changes it. Ninety minutes is the honest minimum here, and two hours if the onward flight is on a separate ticket.

The 738 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. It is also long enough that the aircraft usually flies three or four legs a day rather than six, which slows how fast delay compounds.

Every one of the 358 flights under MQ 3499 in the data flew ORD to HPN. 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. 358 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 3499

For a booking, the cancellation rate is the figure to plan around on MQ 3499: 6.42% of its 358 scheduled flights did not operate. A late arrival costs about an hour, but a cancellation costs the day, so leave a later option open.

Where to go next

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, July 2025 to June 2026. Last updated 15 September 2026; recomputed monthly. How this data is collected.

Key figures