Carrier route record
YXSAV→BOS
Republic Airways · Savannah to Boston
- Flights
- 426
- Period
- September 2025 to August 2026
- Share of route
- 42%
- Carriers
- 3
Historical statistics for September 2025 to August 2026, not live status. For today’s flights, check with Republic Airways.
Republic on SAV to BOS draws a C−. About one flight in three arrives at least 15 minutes late, and the typical late arrival is a little over an hour behind schedule. Build slack into anything you connect to. That rests on 426 flights, with a median arrival 2 minutes early.
The national on-time rate over the same period is 77.3%, so Republic on SAV to BOS runs 10 points behind the country as a whole. Across a thousand flights that is about 98 extra late arrivals.
Key figures
On time
67.5%
Arrivals under 15 minutes late, of 409 completed flights
Avg delay
81 min
Across delayed arrivals only, not all flights
Cancelled
3.76%
National rate is 1.89%
Whole route
68.5%
Every carrier on SAV to BOS, 1,023 flights
These figures cover 426 flights between September 2025 and August 2026. Beyond the headline rate, 15.4% 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 SAV to BOS
Republic flew 426 of the 1,023 flights on SAV to BOS, about 42% of it. Its 67.5% on time is about level with the route as a whole at 68.5%. Ranked by on-time rate it is number two of three carriers on the route, where the range runs from JetBlue at 70.1% to Delta at 37.5%. 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 |
|---|---|---|---|---|---|
| JetBlue Airways | 581 | 70.1% | 84 min | 3.27% | C− |
| Republic Airways (this page) | 426 | 67.5% | 81 min | 3.76% | C− |
| Delta Air Linesthin sample | 16 | 37.5% | 51 min | 0.00% | F+ |
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 12 points, against half a point between the best and worst carrier.
- 5am–8am—
- 8am–11am29 flights—
- 11am–2pm47 flights76.1%
- 2pm–5pm324 flights64.5%
- 5pm–8pm26 flights—
- 8pm–5am—
Scale runs 55% to 80%. Rows with fewer than 30 flights show a dash.
The best window here is not the first bank but the 11am–2pm slot at 76.1% on time, ahead of 2pm–5pm at 64.5%. Where the curve peaks mid-day rather than at dawn, the constraint is usually congestion at one end rather than the aircraft's own rotation. The 2pm–5pm window is the busiest, with 324 flights scheduled in it.
Across the year
Republic on SAV to BOS through the year
Delays peak in September, when the on-time rate falls to 41.9%. June is the strongest month at 80.0%. Moving a flexible trip across that boundary buys 38 points. August was the busiest month here, with 41 flights.
Across the week, Saturday is the strongest day at 77.6% on time and Sunday the weakest at 57.3%, a spread of 20 points.
Arrival by arrival
How late Republic on SAV to BOS runs when it is late
Republic on SAV to BOS often beats the schedule: 107 of 409 completed flights, 26%, arrived 15 minutes or more early. The 133 late arrivals split 34 under half an hour, 36 between 30 and 60 minutes, and 63 an hour or more.
- 15+ min early107 flights26.2%
- Within 15 min169 flights41.3%
- 15–29 min late34 flights8.3%
- 30–59 min late36 flights8.8%
- 1–2 hours late46 flights11.2%
- 2+ hours late17 flights4.2%
Scale runs 0% to 100%.
Share of 409 completed flights by arrival against schedule.
22 of 130 late departures made up the time and arrived on time, 17% of them. In the other direction, 25 flights left on time yet arrived 15 minutes late or more, so that delay built up after pushback: in the air, in a holding pattern or on the ground at BOS.
The worst days
Worst days for Republic on SAV to BOS
The latest arrival of the period was on 3 November 2025, 17 hours 2 minutes behind schedule; most of its delay minutes were filed as carrier-caused (crew, maintenance, fuelling, baggage). The same cause led on four of the five worst days.
| Date | Arrived late by | Largest filed cause |
|---|---|---|
| 3 November 2025 | 17 hours 2 minutes | Carrier |
| 23 August 2026 | 8 hours 51 minutes | Carrier |
| 9 November 2025 | 6 hours 50 minutes | Carrier |
| 26 January 2026 | 5 hours 18 minutes | National Airspace System |
| 31 July 2026 | 5 hours 7 minutes | Carrier |
Delay causes
Why Republic runs late on this route
Carrier accounts for 42% of the 11,000 delay minutes carriers reported here, and the remaining four split what is left.
- 42%Carrier
- 40%National Airspace System
- 13%Late-arriving aircraft
- 4%Extreme weather
The largest share of delay minutes, 42%, falls under carrier control: crew scheduling, maintenance, fuelling, baggage. It accounts for 4,591 of the 11,000 delay minutes reported here. The split is drawn from 10,805 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 4,311 minutes out of 11,000, against a national NAS share of 21%.
Cancellations run at 3.76%, against 1.89% nationally. That is about one flight in 25 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
15.4% of arrivals land a full hour or more behind schedule, against 8.3% nationally. Ninety minutes is the honest minimum for a connection here, and two hours if the onward flight is on a separate ticket.
The 901 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 81.0% on time across 426 flights, 14 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 14 points of difference.
One caution: this is a thin sample. 426 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 SAV to BOS
Put together: the delay figures matter less here than the 3.76% cancellation rate. A late arrival costs you a little over an hour; a cancelled flight costs you the day. Book the 11am–2pm departure so there is still a schedule behind you if it goes wrong, and treat a same-day connection as optimistic. 409 completed flights over 12 months sit behind that.
Related
Where to go next
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.