Carrier route record
YXCLE→BOS
Republic Airways · Cleveland to Boston
- Flights
- 881
- Period
- September 2025 to August 2026
- Share of route
- 54%
- Carriers
- 3
Historical statistics for September 2025 to August 2026, not live status. For today’s flights, check with Republic Airways.
Republic on CLE to BOS lands a B, 5 points better than the national rate of 77.3%. 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 rests on 881 flights, with a median arrival 15 minutes early.
Set against the rest of the country, Republic's CLE to BOS record is 5 points better than the US average of 77.3%. That gap is worth roughly 54 fewer late arrivals for every thousand flights.
Key figures
On time
82.7%
Arrivals under 15 minutes late, of 857 completed flights
Avg delay
75 min
Across delayed arrivals only, not all flights
Cancelled
2.72%
National rate is 1.89%
Whole route
77.7%
Every carrier on CLE to BOS, 1,620 flights
These figures cover 881 flights between September 2025 and August 2026. Beyond the headline rate, 8.3% 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 CLE to BOS
Republic flew 881 of the 1,620 flights on CLE to BOS, most of the route. Its 82.7% on time is 5 points better than the route as a whole, which runs 77.7%. Ranked by on-time rate it is number two of three carriers on the route, where the range runs from Frontier at 87.9% to JetBlue at 70.0%. 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 |
|---|---|---|---|---|---|
| Frontier Airlinesthin sample | 67 | 87.9% | 47 min | 1.49% | A |
| Republic Airways (this page) | 881 | 82.7% | 75 min | 2.72% | B |
| JetBlue Airways | 672 | 70.0% | 76 min | 3.72% | C− |
Flight by flight
Republic flight numbers on CLE to BOS
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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–8am358 flights90.6%
- 8am–11am16 flights—
- 11am–2pm215 flights87.1%
- 2pm–5pm86 flights82.7%
- 5pm–8pm206 flights62.6%
- 8pm–5am—
Scale runs 55% to 95%. Rows with fewer than 30 flights show a dash.
The 5pm–8pm window is where this operation falls apart: 62.6% on time, against 90.6% 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 358 flights scheduled in it.
Across the year
Republic on CLE to BOS through the year
December is the weak month at 75.3% on time, against 93.0% in March. 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. July was the busiest month here, with 88 flights.
Across the week, Saturday is the strongest day at 89.0% on time and Monday the weakest at 78.8%, a spread of 10 points.
Arrival by arrival
How late Republic on CLE to BOS runs when it is late
Republic on CLE to BOS often beats the schedule: 436 of 857 completed flights, 51%, arrived 15 minutes or more early. The 148 late arrivals split 33 under half an hour, 44 between 30 and 60 minutes, and 71 an hour or more.
- 15+ min early436 flights50.9%
- Within 15 min273 flights31.9%
- 15–29 min late33 flights3.9%
- 30–59 min late44 flights5.1%
- 1–2 hours late49 flights5.7%
- 2+ hours late22 flights2.6%
Scale runs 0% to 100%.
Share of 857 completed flights by arrival against schedule.
23 of 139 late departures made up the time and arrived on time, 17% of them. 32 flights left on time and still arrived late.
The worst days
Worst days for Republic on CLE to BOS
The latest arrival of the period was on 18 March 2026, 8 hours 6 minutes behind schedule; most of its delay minutes were filed as carrier-caused (crew, maintenance, fuelling, baggage). The same cause led on five of the five worst days.
| Date | Arrived late by | Largest filed cause |
|---|---|---|
| 18 March 2026 | 8 hours 6 minutes | Carrier |
| 4 August 2026 | 7 hours 26 minutes | Carrier |
| 23 July 2026 | 5 hours 30 minutes | Carrier |
| 17 July 2026 | 4 hours 55 minutes | Carrier |
| 18 May 2026 | 4 hours 30 minutes | Carrier |
Delay causes
Why Republic runs late on this route
Carrier accounts for 46% of the 11,000 delay minutes carriers reported here, and the remaining four split what is left.
- 46%Carrier
- 43%National Airspace System
- 8%Late-arriving aircraft
- 4%Extreme weather
The largest share of delay minutes, 46%, falls under carrier control: crew scheduling, maintenance, fuelling, baggage. It accounts for 5,031 of the 11,000 delay minutes reported here. The split is drawn from 11,046 reported delay minutes.
43% 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 4,695 minutes out of 11,000, against a national NAS share of 21%.
Cancellations run at 2.72%, against 1.89% nationally. That is roughly one flight in 40 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
8.3% 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 563 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 76.1% on time across 881 flights, 7 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 7 points of difference.
One caution: this is a thin sample. 881 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 Republic on CLE to BOS
Put together: treat all of this as provisional. 881 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 82.7% headline is the most reliable number on the page; the hour and month splits below it are built on a few dozen flights each. 857 completed flights over 12 months sit behind that.
Related
Where to go next
- CLE to BOS, every carrier
- Republic on BOS to CLE, the return leg
- JetBlue Airways on CLE to BOS70.0%
- Republic Airways network-wide record
- Cleveland Hopkins International (CLE) delay statistics
- Boston Logan International (BOS) delay statistics
- The US routes with the most cancellations
- The best time of day to fly, according to 7.05 million flight records
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.