Carrier route record
YXBOS→SAV
Republic Airways · Boston to Savannah
- 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 BOS to SAV 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 roughly 45 minutes on average. That rests on 426 flights, with a median arrival 9 minutes early.
The US average over the same twelve months is 77.3%, so there is little to separate Republic on BOS to SAV from the country as a whole. The variation that matters here is internal: which carrier, and what time of day.
Key figures
On time
81.0%
Arrivals under 15 minutes late, of 416 completed flights
Avg delay
47 min
Across delayed arrivals only, not all flights
Cancelled
2.35%
National rate is 1.89%
Whole route
79.4%
Every carrier on BOS to SAV, 1,023 flights
These figures cover 426 flights between September 2025 and August 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.
Fare search by Aviasales, a Travelpayouts partner. Booking through it may earn this site a commission at no cost to you; it changes no figure here.
Carrier by carrier
Republic against every carrier on BOS to SAV
Republic flew 426 of the 1,023 flights on BOS to SAV, about 42% of it. Its 81.0% on time is 2 points better than the route as a whole, which runs 79.4%. Ranked by on-time rate it is number two of three carriers on the route, where the range runs from Delta at 87.5% to JetBlue at 77.9%. 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 |
|---|---|---|---|---|---|
| Delta Air Linesthin sample | 16 | 87.5% | 41 min | 0.00% | A+ |
| Republic Airways (this page) | 426 | 81.0% | 47 min | 2.35% | B |
| JetBlue Airways | 581 | 77.9% | 66 min | 2.93% | B |
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 is the single lever a traveller controls, and it moves the odds more than most people expect. Each bar below is the on-time rate for flights scheduled to leave inside that window, across 426 flights.
- 5am–8am29 flights—
- 8am–11am53 flights84.9%
- 11am–2pm319 flights80.3%
- 2pm–5pm25 flights—
- 5pm–8pm—
- 8pm–5am—
Scale runs 70% to 90%. Rows with fewer than 30 flights show a dash.
The early departures do better, though not dramatically: 84.9% on time for the 8am–11am window against 80.3% for 11am–2pm. Worth taking if the schedule allows, not worth an extra connection. The 11am–2pm window is the busiest, with 319 flights scheduled in it.
Across the year
Republic on BOS to SAV through the year
December is the weak month at 64.5% on time, against 88.2% in April. 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. August was the busiest month here, with 41 flights.
Across the week, Wednesday is the strongest day at 92.2% on time and Sunday the weakest at 74.7%, a spread of 18 points.
Arrival by arrival
How late Republic on BOS to SAV runs when it is late
Republic on BOS to SAV often beats the schedule: 156 of 416 completed flights, 38%, arrived 15 minutes or more early. The 79 late arrivals split 34 under half an hour, 25 between 30 and 60 minutes, and 20 an hour or more.
- 15+ min early156 flights37.5%
- Within 15 min181 flights43.5%
- 15–29 min late34 flights8.2%
- 30–59 min late25 flights6.0%
- 1–2 hours late16 flights3.8%
- 2+ hours late4 flights1.0%
Scale runs 0% to 100%.
Share of 416 completed flights by arrival against schedule.
8 of 51 late departures made up the time and arrived on time, 16% of them. In the other direction, 36 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 SAV.
The worst days
Worst days for Republic on BOS to SAV
The latest arrival of the period was on 27 January 2026, 3 hours 11 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 |
|---|---|---|
| 27 January 2026 | 3 hours 11 minutes | Carrier |
| 11 July 2026 | 2 hours 29 minutes | National Airspace System |
| 16 March 2026 | 2 hours 17 minutes | National Airspace System |
| 19 July 2026 | 2 hours 9 minutes | Carrier |
| 28 March 2026 | 1 hour 56 minutes | Carrier |
Delay causes
Why Republic runs late on this route
Carrier accounts for 45% of the 3,699 delay minutes carriers reported here, and the remaining four split what is left.
- 45%Carrier
- 38%National Airspace System
- 16%Late-arriving aircraft
- 1%Extreme weather
38% 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 1,412 minutes out of 3,699, against a national NAS share of 21%. The split is drawn from 3,699 reported delay minutes.
The largest share of delay minutes, 45%, falls under carrier control: crew scheduling, maintenance, fuelling, baggage. It accounts for 1,664 of the 3,699 delay minutes reported here.
Cancellations sit at 2.35% against a national 1.89%, which is ordinary. Diversions add another 0.00%.
Connections and stage length
What a delay here costs
Badly late arrivals are rare here: only 4.8% land an hour or more behind schedule, against 8.3% nationally. Connections built on this flight are about as safe as US domestic connections get, though a cancelled flight still ignores every layover you give it.
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 67.5% on time across 426 flights, 14 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 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 BOS to SAV
Put together: treat all of this as provisional. 426 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 81.0% headline is the most reliable number on the page; the hour and month splits below it are built on a few dozen flights each. 416 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.