Carrier route record
YXBOS→CLT
Republic Airways · Boston to Charlotte
- 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 BOS to CLT carries a cancellation problem, not just a delay problem: 3.5% of scheduled flights never operate, against 1.9% nationally. Of the ones that do fly, about four flights in five arrive on time, worth a B− overall. The punctuality figure counts only flights that actually departed, so it flatters an operation that cancels this often. 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 BOS to CLT from the country as a whole. The variation that matters here is internal: which carrier, and what time of day.
Key figures
On time
79.7%
Arrivals under 15 minutes late, of 1,168 completed flights
Avg delay
68 min
Across delayed arrivals only, not all flights
Cancelled
3.54%
National rate is 1.89%
Whole route
82.0%
Every carrier on BOS to CLT, 4,009 flights
These figures cover 1,214 flights between September 2025 and August 2026. The median arrival is 11 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
Republic against every carrier on BOS to CLT
Republic flew 1,214 of the 4,009 flights on BOS to CLT, about 30% of it. Its 79.7% on time is 2 points worse than the route as a whole, which runs 82.0%. Ranked by on-time rate it is number three of four carriers on the route, where the range runs from Envoy at 100.0% to Spirit 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 |
|---|---|---|---|---|---|
| Envoy Airthin sample | 5 | 100.0% | — | 20.00% | A− |
| American Airlines | 2,728 | 83.3% | 88 min | 2.20% | B |
| Republic Airways (this page) | 1,214 | 79.7% | 68 min | 3.54% | B− |
| Spirit Airlinesthin sample | 62 | 66.7% | 88 min | 3.23% | C− |
Flight by flight
Republic flight numbers on BOS to CLT
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 31 points, against half a point between the best and worst carrier.
- 5am–8am212 flights93.2%
- 8am–11am232 flights85.4%
- 11am–2pm108 flights88.9%
- 2pm–5pm322 flights79.1%
- 5pm–8pm297 flights65.1%
- 8pm–5am43 flights61.9%
Scale runs 55% to 100%.
The 8pm–5am window is where this operation falls apart: 61.9% on time, against 93.2% 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 2pm–5pm window is the busiest, with 322 flights scheduled in it.
Across the year
Republic on BOS to CLT through the year
April is the best month on the calendar at 87.6% 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 85.4% on time and Sunday the weakest at 70.9%, a spread of 15 points.
Arrival by arrival
How late Republic on BOS to CLT runs when it is late
Republic on BOS to CLT often beats the schedule: 486 of 1,168 completed flights, 42%, arrived 15 minutes or more early. The 237 late arrivals split 59 under half an hour, 87 between 30 and 60 minutes, and 91 an hour or more.
- 15+ min early486 flights41.6%
- Within 15 min445 flights38.1%
- 15–29 min late59 flights5.1%
- 30–59 min late87 flights7.4%
- 1–2 hours late59 flights5.1%
- 2+ hours late32 flights2.7%
Scale runs 0% to 100%.
Share of 1,168 completed flights by arrival against schedule.
40 of 230 late departures made up the time and arrived on time, 17% of them. 47 flights left on time and still arrived late.
The worst days
Worst days for Republic on BOS to CLT
The latest arrival of the period was on 12 October 2025, 7 hours 4 minutes behind schedule; most of its delay minutes were filed as carrier-caused (crew, maintenance, fuelling, baggage). The five worst days are spread across October, September, August and March, with no single month standing out.
| Date | Arrived late by | Largest filed cause |
|---|---|---|
| 12 October 2025 | 7 hours 4 minutes | Carrier |
| 6 September 2025 | 5 hours 30 minutes | National Airspace System |
| 2 August 2026 | 5 hours 14 minutes | National Airspace System |
| 15 March 2026 | 3 hours 40 minutes | Carrier |
| 12 October 2025 | 3 hours 31 minutes | Late-arriving aircraft |
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 16,000 reported delay minutes.
- 39%Late-arriving aircraft
- 36%Carrier
- 23%National Airspace System
- 2%Extreme weather
39% of delay minutes trace back to a late-arriving aircraft, meaning the plane was already behind before it got here. Across 16,000 reported delay minutes here, that single category outweighs weather by 22 to one. The split is drawn from 16,013 reported delay minutes.
The largest share of delay minutes, 36%, falls under carrier control: crew scheduling, maintenance, fuelling, baggage. It accounts for 5,814 of the 16,000 delay minutes reported here.
Cancellations run at 3.54%, 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
7.8% 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 about 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 80.8% 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 BOS to CLT
Put together: the delay figures matter less here than the 3.54% cancellation rate. A late arrival costs you about 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. 1,168 completed flights over 12 months sit behind that.
Related
Where to go next
- BOS to CLT, every carrier
- Republic on CLT to BOS, the return leg
- American Airlines on BOS to CLT83.3%
- Republic Airways network-wide record
- Boston Logan International (BOS) delay statistics
- Charlotte Douglas International (CLT) delay statistics
- The US routes with the most cancellations
- Why the first flight of the morning is statistically safest
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.