Carrier route record
MQCVG→BOS
Envoy Air · Cincinnati to Boston
- Flights
- 369
- Period
- September 2025 to August 2026
- Share of route
- 18%
- Carriers
- 3
Historical statistics for September 2025 to August 2026, not live status. For today’s flights, check with Envoy Air.
Envoy on CVG to BOS earns an A+. Close to nine flights in ten arrive inside the 15-minute window the DOT uses to define an on-time arrival, which puts it 15 points better than the national rate of 77.3%. When something does go wrong the average delay runs a little over an hour. That rests on 369 flights, with a median arrival 12 minutes early.
Set against the rest of the country, Envoy's CVG to BOS record is 15 points better than the US average of 77.3%. That gap is worth roughly 148 fewer late arrivals for every thousand flights.
Key figures
On time
92.1%
Arrivals under 15 minutes late, of 366 completed flights
Avg delay
68 min
Across delayed arrivals only, not all flights
Cancelled
0.81%
National rate is 1.89%
Whole route
79.5%
Every carrier on CVG to BOS, 2,059 flights
These figures cover 369 flights between September 2025 and August 2026. The median arrival is 12 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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Carrier by carrier
Envoy against every carrier on CVG to BOS
Envoy flew 369 of the 2,059 flights on CVG to BOS, about 18% of it. Its 92.1% on time is 13 points better than the route as a whole, which runs 79.5%. Ranked by on-time rate it is first of three carriers on the route, where the range runs from Envoy at 92.1% to Delta at 47.1%. One of those carriers flew fewer than 365 flights here, so treat their positions as rough.
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 (this page) | 369 | 92.1% | 68 min | 0.81% | A+ |
| Republic Airways | 1,673 | 77.0% | 68 min | 3.71% | B− |
| Delta Air Linesthin sample | 17 | 47.1% | 63 min | 0.00% | F+ |
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
When Envoy runs best on this route
Departure time is the single lever a traveller controls, and it moves the odds more than most people expect. Each bar below is the on-time rate for flights scheduled to leave inside that window, across 369 flights.
There are not enough flights in each departure window to split Envoy's CVG to BOS record by time of day without the percentages moving on noise. The headline rate of 92.1% is the reliable figure here.
Across the year
Envoy on CVG to BOS through the year
December is the weak month at 80.6% on time, against 100.0% in April. 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 35 flights.
Across the week, Sunday is the strongest day at 96.1% on time and Thursday the weakest at 88.5%, a spread of 8 points.
Arrival by arrival
How late Envoy on CVG to BOS runs when it is late
Envoy on CVG to BOS often beats the schedule: 153 of 366 completed flights, 42%, arrived 15 minutes or more early. The 29 late arrivals split 6 under half an hour, 10 between 30 and 60 minutes, and 13 an hour or more.
- 15+ min early153 flights41.8%
- Within 15 min184 flights50.3%
- 15–29 min late6 flights1.6%
- 30–59 min late10 flights2.7%
- 1–2 hours late10 flights2.7%
- 2+ hours late3 flights0.8%
Scale runs 0% to 100%.
Share of 366 completed flights by arrival against schedule.
A late pushback is often recovered here: of 34 departures that left 15 minutes late or more, 15 still arrived on time. 10 flights left on time and still arrived late.
The worst days
Worst days for Envoy on CVG to BOS
The latest arrival of the period was on 24 February 2026, 4 hours 15 minutes behind schedule; most of its delay minutes were filed as extreme weather. Three of the five worst days fell in August 2026.
| Date | Arrived late by | Largest filed cause |
|---|---|---|
| 24 February 2026 | 4 hours 15 minutes | Extreme weather |
| 1 August 2026 | 3 hours 33 minutes | Late-arriving aircraft |
| 14 December 2025 | 2 hours 17 minutes | National Airspace System |
| 8 August 2026 | 1 hour 49 minutes | National Airspace System |
| 29 August 2026 | 1 hour 49 minutes | Late-arriving aircraft |
Delay causes
Why Envoy runs late on this route
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 1,984 reported delay minutes.
- 35%National Airspace System
- 31%Carrier
- 17%Extreme weather
- 17%Late-arriving aircraft
Extreme weather accounts for 17% 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 2.9 times the usual weather exposure. The split is drawn from 1,984 reported delay minutes.
35% of delay minutes are charged to the National Airspace System: air traffic volume, runway configuration, ground stops. No carrier can price its way out of that, which is why airport choice moves the number here more than carrier choice does. That is 698 minutes out of 1,984, against a national NAS share of 21%.
Cancellations are rare at 0.81%, 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 stage length
What a delay here costs
Badly late arrivals are rare here: only 3.6% land an hour or more behind schedule, against 8.3% nationally. Connections built on this flight are about as safe as US domestic connections get, though a cancelled flight still ignores every layover you give it.
The 752 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.
The return leg is a different operation and performs like one: it runs 69.8% on time across 369 flights, 22 points below this direction. Departure banks, aircraft rotations and the congestion at each end all differ, so scoring the two directions together would average away a real 22 points of difference.
One caution: this is a thin sample. 369 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 Envoy on CVG to BOS
Put together: treat all of this as provisional. 369 flights over twelve months is enough to clear this site's floor and not enough to be confident to better than a couple of points. The 92.1% headline is the most reliable number on the page; the hour and month splits below it are built on a few dozen flights each. 366 completed flights over 12 months sit behind that.
Related
Where to go next
- CVG to BOS, every carrier
- Envoy on BOS to CVG, the return leg
- Republic Airways on CVG to BOS77.0%
- Envoy Air network-wide record
- Cincinnati/Northern Kentucky International (CVG) delay statistics
- Boston Logan International (BOS) delay statistics
- Worst months to fly in the US, ranked by the data
- Late aircraft, weather, or the airline: what actually causes US flight delays
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.