Carrier route record
YXBOS→CLE
Republic Airways · Boston to Cleveland
- Flights
- 868
- Period
- July 2025 to June 2026
- Share of route
- 52%
- Carriers
- 3
Historical statistics for July 2025 to June 2026, not live status. For today’s flights, check with Republic Airways.
Republic on BOS to CLE lands a B, level with the national rate of 77.6%. Roughly one flight in five arrives 15 minutes late or worse, and those flights are late by about an hour on average. That is a workable record, not a spotless one. That rests on 868 flights, with a median arrival 9 minutes early.
The US average over the same twelve months is 77.6%, so there is little to separate Republic on BOS to CLE from the country as a whole. The variation that matters here is internal: which carrier, and what time of day.
Key figures
On time
77.8%
Arrivals under 15 minutes late, of 846 completed flights
Avg delay
62 min
Across delayed arrivals only, not all flights
Cancelled
2.42%
National rate is 1.81%
Whole route
76.9%
Every carrier on BOS to CLE, 1,682 flights
These figures cover 868 flights between July 2025 and June 2026. The median arrival is 9 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 BOS to CLE
Republic flew 868 of the 1,682 flights on BOS to CLE, most of the route. Its 77.8% on time is about level with the route as a whole at 76.9%. Ranked by on-time rate it is number two of three carriers on the route, where the range runs from Frontier at 80.7% to JetBlue at 75.4%. 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 | 89 | 80.7% | 75 min | 1.12% | B |
| Republic Airways (this page) | 868 | 77.8% | 62 min | 2.42% | B |
| JetBlue Airways | 725 | 75.4% | 76 min | 2.21% | B |
Flight by flight
Republic flight numbers on BOS to CLE
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–8am4 flights—
- 8am–11am288 flights87.6%
- 11am–2pm13 flights—
- 2pm–5pm243 flights86.0%
- 5pm–8pm88 flights61.0%
- 8pm–5am232 flights61.3%
Scale runs 55% to 95%. Rows with fewer than 30 flights show a dash.
The 5pm–8pm window is where this operation falls apart: 61.0% on time, against 87.6% for the 8am–11am 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 8am–11am window is the busiest, with 288 flights scheduled in it.
Across the year
Republic on BOS to CLE through the year
Delays peak in March, when the on-time rate falls to 61.4%. August is the strongest month at 90.2%. Moving a flexible trip across that boundary buys 29 points. June was the busiest month here, with 85 flights.
Across the week, Saturday is the strongest day at 83.1% on time and Sunday the weakest at 73.7%. 9 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 12,000 reported delay minutes.
- 41%Late-arriving aircraft
- 36%Carrier
- 20%National Airspace System
- 3%Extreme weather
41% of delay minutes trace back to a late-arriving aircraft, meaning the plane was already behind before it got here. That is a cascade, and cascades start small and grow through the day. Across 12,000 reported delay minutes here, that single category outweighs weather by 16 to one. It is the strongest argument for booking the first departure of the morning, when the aircraft has been sitting at the gate overnight with nothing to inherit. The split is drawn from 11,674 reported delay minutes.
The largest share of delay minutes, 36%, 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 4,197 of the 12,000 delay minutes reported here.
Cancellations sit at 2.42% against a national 1.81%, which is ordinary. Diversions add another 0.12%.
Connections and stage length
What a delay here costs
7.6% 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 about 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. 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 is a different operation and performs like one: it runs 83.7% on time across 868 flights, 6 points above 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 6 points of difference.
One caution: this is a thin sample. 868 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 BOS to CLE
Put together: treat all of this as provisional. 868 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 77.8% headline is the most reliable number on the page; the hour and month splits below it are built on a few dozen flights each. 846 completed flights over 12 months sit behind that.
Related
Where to go next
- BOS to CLE, every carrier
- Republic on CLE to BOS, the return leg
- JetBlue Airways on BOS to CLE75.4%
- Republic Airways network-wide record
- Boston Logan International (BOS) delay statistics
- Cleveland Hopkins International (CLE) delay statistics
- Why the first flight of the morning is statistically safest
- The best time of day to fly, according to 7.04 million flight records
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.