Carrier route record
YXCLT→BOS
Republic Airways · Charlotte to Boston
- Flights
- 1,214
- Period
- September 2025 to August 2026
- Share of route
- 30%
- Carriers
- 4
Historical statistics for September 2025 to August 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 77.3%. About one flight in five arrives 15 minutes late or worse, and those flights are late by a little over an hour on average. That rests on 1,214 flights, with a median arrival 11 minutes early.
The US average over the same twelve months is 77.3%, so there is little to separate Republic on CLT to BOS from the country as a whole. The variation that matters here is internal: which carrier, and what time of day.
Key figures
On time
80.8%
Arrivals under 15 minutes late, of 1,174 completed flights
Avg delay
76 min
Across delayed arrivals only, not all flights
Cancelled
3.13%
National rate is 1.89%
Whole route
76.0%
Every carrier on CLT to BOS, 4,006 flights
These figures cover 1,214 flights between September 2025 and August 2026. Beyond the headline rate, 8.5% of arrivals land a full hour or more behind schedule, against 8.3% nationally.
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Carrier by carrier
Republic against every carrier on CLT to BOS
Republic flew 1,214 of the 4,006 flights on CLT to BOS, about 30% of it. Its 80.8% on time is 5 points better than the route as a whole, which runs 76.0%. Ranked by on-time rate it is first of four carriers on the route, where the range runs from Republic at 80.8% 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) | 1,214 | 80.8% | 76 min | 3.13% | B− |
| American Airlines | 2,726 | 74.1% | 66 min | 2.13% | C |
| Spirit Airlinesthin sample | 61 | 70.0% | 94 min | 1.64% | C |
| Envoy Airthin sample | 5 | 66.7% | 144 min | 40.00% | C− |
Flight by flight
Republic flight numbers on CLT to BOS
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 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 28 points, against half a point between the best and worst carrier.
- 5am–8am360 flights92.6%
- 8am–11am195 flights87.9%
- 11am–2pm202 flights81.6%
- 2pm–5pm152 flights75.5%
- 5pm–8pm305 flights64.3%
- 8pm–5am—
Scale runs 55% to 100%. Rows with fewer than 30 flights show a dash.
The 5pm–8pm window is where this operation falls apart: 64.3% on time, against 92.6% for the 5am–8am 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 5am–8am window is the busiest, with 360 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. August was the busiest month here, with 118 flights.
Across the week, Saturday is the strongest day at 89.8% on time and Sunday the weakest at 75.2%, a spread of 15 points.
Arrival by arrival
How late Republic on CLT to BOS runs when it is late
Republic on CLT to BOS often beats the schedule: 454 of 1,174 completed flights, 39%, arrived 15 minutes or more early. The 225 late arrivals split 54 under half an hour, 71 between 30 and 60 minutes, and 100 an hour or more.
- 15+ min early454 flights38.7%
- Within 15 min495 flights42.2%
- 15–29 min late54 flights4.6%
- 30–59 min late71 flights6.0%
- 1–2 hours late57 flights4.9%
- 2+ hours late43 flights3.7%
Scale runs 0% to 100%.
Share of 1,174 completed flights by arrival against schedule.
44 of 232 late departures made up the time and arrived on time, 19% of them. 37 flights left on time and still arrived late.
The worst days
Worst days for Republic on CLT to BOS
The latest arrival of the period was on 12 October 2025, 6 hours 57 minutes behind schedule; most of its delay minutes were filed as carrier-caused (crew, maintenance, fuelling, baggage). The same cause led on three of the five worst days.
| Date | Arrived late by | Largest filed cause |
|---|---|---|
| 12 October 2025 | 6 hours 57 minutes | Carrier |
| 21 June 2026 | 6 hours 56 minutes | Carrier |
| 24 September 2025 | 5 hours 23 minutes | National Airspace System |
| 17 March 2026 | 5 hours 22 minutes | Carrier |
| 8 August 2026 | 5 hours 17 minutes | National Airspace System |
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 17,000 reported delay minutes.
- 40%National Airspace System
- 37%Carrier
- 19%Late-arriving aircraft
- 4%Extreme weather
The largest share of delay minutes, 37%, falls under carrier control: crew scheduling, maintenance, fuelling, baggage. It accounts for 6,360 of the 17,000 delay minutes reported here. The split is drawn from 17,107 reported delay minutes.
40% 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 6,821 minutes out of 17,000, against a national NAS share of 21%.
Cancellations run at 3.13%, against 1.89% nationally. That is about 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
8.5% 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 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.
The return leg runs 79.7% on time across 1,214 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 1,214 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 3.13% 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. 1,174 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 BOS74.1%
- 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, September 2025 to August 2026. Last updated ; recomputed monthly. How this data is collected.