Route reliability record
ORD→MQT
Chicago to Marquette
- Flights
- 748
- Period
- September 2025 to August 2026
- Distance
- 303 mi
- Carriers
- 1
This route carries a cancellation problem, not just a delay problem: 5.1% of scheduled flights never operate, against 1.9% nationally. Of the ones that do fly, about seven flights in ten arrive on time, worth a C− overall. The punctuality figure counts only flights that actually departed, so it flatters an operation that cancels this often. That rests on 748 ORD to MQT flights, with a median arrival 4 minutes early.
Best time to fly ORD to MQT: a 11am–2pm departure, ideally on a Tuesday. Flights in that window arrived on time 84.5% of the time and Tuesday flights 80.0%, against 72.4% for the route overall.
The national on-time rate over the same period is 77.3%, so this route runs 5 points behind the country as a whole. Across a thousand flights that is about 49 extra late arrivals.
Key figures
On time
72.4%
Arrivals under 15 minutes late, of 702 completed flights
Avg delay
104 min
Across delayed arrivals only, not all flights
Cancelled
5.08%
National rate is 1.89%
Best carrier
Envoy
72.4% on time across 748 flights
These figures cover 748 flights between September 2025 and August 2026. Beyond the headline rate, 12.4% of arrivals land a full hour or more behind schedule, against 8.3% nationally.
Fare search by Aviasales, a Travelpayouts partner. Booking through it may earn this site a commission at no cost to you; it changes no figure here.
Carrier by carrier
Which airline is most reliable on ORD to MQT
Only one carrier clears this site's 365-flight floor here, so there is no comparison to draw. The table below is the full picture.
| Airline | Flights | On time | Avg delay | Cancelled | Grade |
|---|---|---|---|---|---|
| Envoy Air | 748 | 72.4% | 104 min | 5.08% | C− |
Flight by flight
Flights on ORD to MQT
The flight numbers below flew this route at least 250 times in the period, busiest first. Each has its own record, with its schedule and delay causes.
Timetable by Aviasales, a Travelpayouts partner. Booking through it may earn this site a commission at no cost to you; it changes no figure here.
Departure window
The best time of day to leave
Departure time matters more here than the choice of carrier. The gap between the best and worst window is 21 points, against half a point between the best and worst carrier.
- 5am–8am—
- 8am–11am62 flights77.4%
- 11am–2pm167 flights84.5%
- 2pm–5pm156 flights77.6%
- 5pm–8pm363 flights63.7%
- 8pm–5am—
Scale runs 55% to 90%. Rows with fewer than 30 flights show a dash.
The 5pm–8pm window is where this operation falls apart: 63.7% on time, against 84.5% for the 11am–2pm slot. By evening the aircraft flying these rotations have absorbed a full day of small delays and there is no slack left to recover in. The 5pm–8pm window is the busiest, with 363 flights scheduled in it.
Explore
Filter ORD to MQT by airline, time, month and day
Pick a breakdown and a carrier. The dashed mark on each row is the same slice for every US flight.
On ORD to MQT, the best departure window is 11am–2pm at 84.5% on time and the worst is 5pm–8pm at 63.7%, a wide gap of 20.8 points. All US flights leaving 11am–2pm ran 78.3%.
- 5–8am—
- 8–11am77.4%
- 11am–2pm84.5%
- 2–5pm77.6%
- 5–8pm63.7%
- 8pm–5am—
best all US flightsScale 55% to 95%. Cells under 30 flights show a dash.
Across the year
When delays peak on this route
This route's year swings by 30 points from best month to worst, which is wide. An annual average tells you very little about the week you are actually flying, so read the strip rather than the headline if your dates are fixed.
January is the weak month at 55.9% on time, against 85.5% in November. Winter delays cluster: a single storm system can account for most of a month's shortfall, so an average December hides both very good weeks and genuinely unflyable days. August was the busiest month here, with 89 flights.
Across the week, Tuesday is the strongest day at 80.0% on time and Friday the weakest at 68.6%, a spread of 11 points.
Delay causes
Why this route gets delayed
Late-arriving aircraft accounts for 51% of the 20,000 delay minutes carriers reported here, and the remaining four split what is left.
- 51%Late-arriving aircraft
- 28%Extreme weather
- 13%National Airspace System
- 8%Carrier
Extreme weather accounts for 28% 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 monthly strip above is the more useful view of the risk. The national share is 6%, so this operation carries roughly 4.6 times the usual weather exposure. The split is drawn from 20,103 reported delay minutes.
51% of delay minutes trace back to a late-arriving aircraft, meaning the plane was already behind before it got here. Across 20,000 reported delay minutes here, that single category outweighs weather by 2 to one.
Cancellations run at 5.08%, against 1.89% nationally. That is about one flight in twenty 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 stage length
What a delay here actually costs
12.4% of arrivals land a full hour or more behind schedule, against 8.3% nationally. Ninety minutes is the honest minimum for a connection here, and two hours if the onward flight is on a separate ticket.
At 303 miles this is a short hop, and stage length matters more than it looks. A flight this short spends under two hours in the air, which leaves almost nothing to claw back a late pushback with. Delay here is decided on the ground, in the turn, which is why the 11am–2pm window matters as much as it does.
The return leg runs 71.9% on time across 748 flights, within half a point of this direction. The two legs are scored separately because they usually differ; on this city pair they happen not to.
One caution: this is a thin sample. 748 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.
Work out the risk of missing a connection in MQT after this flight
What to do with this
Booking this route
Put together: the delay figures matter less here than the 5.08% cancellation rate. A late arrival costs you close to two hours; a cancelled flight costs you the day. Book the 11am–2pm departure so there is still a schedule behind you if it goes wrong, and treat a same-day connection as optimistic. 702 completed flights over 12 months sit behind that.
Common questions
ORD to MQT questions
How often is ORD to MQT delayed?
Roughly one flight in four arrives at least 15 minutes late, which is the Department of Transportation's definition of a delayed arrival. That works out to 27.6% of the 748 flights in this analysis, against 22.7% nationally. Delayed flights are late by close to two hours on average.
How reliable is ORD to MQT compared with the rest of the country?
72.4% of flights arrive on time here against a national 77.3%, a difference of 5 points against it. That is worth a C− on this site's grading scale.
What time of day has the fewest delays on ORD to MQT?
The 11am–2pm departure window is the strongest at 84.5% on time. The 5pm–8pm window is the weakest at 63.7%, 21 points behind. Later departures inherit delays from earlier flights the same aircraft has already flown, which is why the curve slopes the way it does.
How bad are January delays on ORD to MQT?
January is the weakest month at 55.9% on time, compared with 85.5% in November. Across the year that is 30 points between the best and worst months. Moving flexible dates out of that month is one of the few things that reliably helps.
Related
Where to go next
- MQT to ORD — the return legseparate record
- Chicago O'Hare International (ORD) delay statistics
- ORD to LGA, a related route66.6%
- ORD to BOS, a related route66.6%
- ORD to LAX, a related route72.0%
- Envoy Air on-time record72.4%
- The US routes with the most cancellations
- Why the first flight of the morning is statistically safest
Direction matters. ORD to MQT and MQT to ORD are scored separately because they are separate operations, with different departure banks and different aircraft. Compare the return leg.
Embed ORD to MQT’s on-time badge on your site
Paste this into a web page. The badge shows the current on-time rate, cancellation rate and grade, and updates every month. Preview it, or build a badge for another route or airport.
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.