Carrier route record
YXCLT→BOS
Republic Airways · Charlotte to Boston
- Flights
- 1,199
- Period
- July 2025 to June 2026
- Share of route
- 30%
- Carriers
- 4
Historical statistics for July 2025 to June 2026, not live status. For today’s flights, check with Republic Airways.
Republic on CLT to BOS lands a B, 4 points better than the national rate of 77.6%. About one flight in six arrives 15 minutes late or worse, and those flights are late by a little over an hour on average. That is a workable record, not a spotless one. That rests on 1,199 flights, with a median arrival 10 minutes early.
Set against the rest of the country, Republic's CLT to BOS record is 4 points better than the US average of 77.6%. That gap is worth roughly 43 fewer late arrivals for every thousand flights.
Key figures
On time
81.9%
Arrivals under 15 minutes late, of 1,162 completed flights
Avg delay
73 min
Across delayed arrivals only, not all flights
Cancelled
3.00%
National rate is 1.81%
Whole route
76.2%
Every carrier on CLT to BOS, 4,016 flights
These figures cover 1,199 flights between July 2025 and June 2026. The median arrival is 10 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.
Carrier by carrier
Republic against every carrier on CLT to BOS
Republic flew 1,199 of the 4,016 flights on CLT to BOS, about 30% of it. Its 81.9% on time is 6 points better than the route as a whole, which runs 76.2%. Ranked by on-time rate it is first of four carriers on the route, where the range runs from Republic at 81.9% to Envoy at 66.7%. Two 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 |
|---|---|---|---|---|---|
| Republic Airways (this page) | 1,199 | 81.9% | 73 min | 3.00% | B |
| American Airlines | 2,735 | 73.8% | 63 min | 2.23% | C |
| Spirit Airlinesthin sample | 77 | 73.7% | 87 min | 1.30% | C |
| Envoy Airthin sample | 5 | 66.7% | 144 min | 40.00% | C− |
Departure window
When Republic runs best on this route
Departure time matters more here than the choice of carrier. The gap between the best and worst window is 27 points, against half a point between the best and worst carrier. Each bar is the on-time rate for flights scheduled inside that window.
- 5am–8am363 flights93.2%
- 8am–11am188 flights88.2%
- 11am–2pm145 flights86.5%
- 2pm–5pm209 flights75.1%
- 5pm–8pm294 flights65.9%
- 8pm–5am—
Scale runs 55% to 100%. Rows with fewer than 30 flights show a dash.
Book the early departure. Flights leaving between 5am–8am arrive on time 93.2% of the time, against 65.9% for the evening window. That is 27 points of difference for no extra money, and it comes from the same aircraft having had no earlier flight to fall behind on. The 5am–8am window is the busiest, with 363 flights scheduled in it.
Across the year
Republic on CLT to BOS through the year
November is the best month on the calendar at 92.3% on time. Shoulder season thins the schedule and takes the summer weather with it, and the operation gets its margin back. May was the busiest month here, with 112 flights.
Across the week, Saturday is the strongest day at 89.9% on time and Thursday the weakest at 77.3%. 13 points is a smaller lever than departure hour, but it is free.
Delay causes
Why Republic 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 15,000 reported delay minutes.
- 41%National Airspace System
- 35%Carrier
- 18%Late-arriving aircraft
- 5%Extreme weather
The largest share of delay minutes, 35%, falls under carrier control: crew scheduling, maintenance, fuelling, baggage. Unlike weather, that is a management outcome, and it is the category where the gap between two carriers on the same schedule is genuinely earned. It accounts for 5,387 of the 15,000 delay minutes reported here. The split is drawn from 15,218 reported delay minutes.
41% 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 6,273 minutes out of 15,000, against a national NAS share of 21%.
Cancellations run at 3.00%, against 1.81% nationally. That is roughly one flight in 30 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 costs
7.8% of arrivals land an hour or more late, close to the national 8.1%. That is the figure that decides a connection, and it says a 60 to 75 minute layover is reasonable here while anything under 45 minutes is a bet. Most delays on this route last a little over an hour, which a normal layover absorbs.
The 728 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.
The return leg runs 80.5% on time across 1,199 flights, within about a point of this direction. The two legs are scored separately because they usually differ; on this city pair they happen not to.
The sample behind these figures is 1,199 flights, enough that the headline rate is stable to within roughly a point. The hour-block and month splits divide that further, so read the thinner bars with more caution than the headline.
What to do with this
Booking Republic on CLT to BOS
Put together: the delay figures matter less here than the 3.00% cancellation rate. A late arrival costs you a little over an hour; a cancelled flight costs you the day. Book the 5am–8am departure so there is still a schedule behind you if it goes wrong, and treat a same-day connection as optimistic. 1,162 completed flights over 12 months sit behind that.
Related
Where to go next
- CLT to BOS, every carrier
- Republic on BOS to CLT, the return leg
- American Airlines on CLT to BOS73.8%
- Republic Airways network-wide record
- Charlotte Douglas International (CLT) delay statistics
- Boston Logan International (BOS) delay statistics
- The US routes with the most cancellations
- What a cancellation rate actually tells you (and what it hides)
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.