Carrier route record
YXLGA→BOS
Republic Airways · New York to Boston
- Flights
- 6,712
- Period
- July 2025 to June 2026
- Share of route
- 93%
- Carriers
- 2
Historical statistics for July 2025 to June 2026, not live status. For today’s flights, check with Republic Airways.
Republic on LGA to BOS carries a cancellation problem, not just a delay problem: 5.4% of scheduled flights never operate, against 1.8% nationally. Of the ones that do fly, close to three flights in four arrive on time, worth a C− overall. The punctuality figure counts only flights that actually departed, so it flatters an operation that cancels this often. That rests on 6,712 flights, with a median arrival 7 minutes early.
The national on-time rate over the same period is 77.6%, so Republic on LGA to BOS runs 4 points behind the country as a whole. Across a thousand flights that is about 40 extra late arrivals.
Key figures
On time
73.6%
Arrivals under 15 minutes late, of 6,343 completed flights
Avg delay
68 min
Across delayed arrivals only, not all flights
Cancelled
5.44%
National rate is 1.81%
Whole route
73.8%
Every carrier on LGA to BOS, 7,255 flights
These figures cover 6,712 flights between July 2025 and June 2026. Beyond the headline rate, 10.6% of arrivals land a full hour or more behind schedule. That is the number that wrecks a connection, and it is not visible in an on-time percentage alone.
Carrier by carrier
Republic against every carrier on LGA to BOS
Republic flew 6,712 of the 7,255 flights on LGA to BOS, most of the route. Its 73.6% on time is about level with the route as a whole at 73.8%. Ranked by on-time rate it is last of two carriers on the route, where the range runs from Delta at 76.4% to Republic at 73.6%.
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 Lines | 543 | 76.4% | 90 min | 3.87% | B− |
| Republic Airways (this page) | 6,712 | 73.6% | 68 min | 5.44% | C− |
Flight by flight
Republic flight numbers on LGA to BOS
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 33 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–8am640 flights93.2%
- 8am–11am1,440 flights84.2%
- 11am–2pm1,332 flights80.3%
- 2pm–5pm1,349 flights62.0%
- 5pm–8pm1,252 flights60.7%
- 8pm–5am699 flights64.5%
Scale runs 50% to 100%. Rows with fewer than 30 flights show a dash.
The 5pm–8pm window is where this operation falls apart: 60.7% 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 8am–11am window is the busiest, with 1,440 flights scheduled in it.
Across the year
Republic on LGA to BOS through the year
Delays peak in October, when the on-time rate falls to 61.8%. August is the strongest month at 83.3%. Moving a flexible trip across that boundary buys 22 points. May was the busiest month here, with 640 flights.
Across the week, Saturday is the strongest day at 84.8% on time and Sunday the weakest at 67.4%. 17 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 113,000 reported delay minutes.
- 39%National Airspace System
- 34%Late-arriving aircraft
- 24%Carrier
- 3%Extreme weather
- 0%Security
39% 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 44,000 minutes out of 113,000, against a national NAS share of 21%. The split is drawn from 113,263 reported delay minutes.
The practical consequence: the 5am–8am departure is the one that starts clean. Its aircraft has no earlier leg to be late from, which is exactly why that window shows 93.2% on time here.
Cancellations run at 5.44%, against 1.81% nationally. That is roughly one flight in twenty 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
For anyone connecting, the number to weigh is not the on-time rate but the tail behind it. 10.6% of arrivals land a full hour or more behind schedule, against 8.1% nationally. A 45-minute layover does not survive that, and no amount of walking quickly changes it. Ninety minutes is the honest minimum here, and two hours if the onward flight is on a separate ticket.
At 184 miles this is a short hop, and stage length matters more than it looks. A flight this short spends under two hours in the air, which leaves almost nothing to claw back a late pushback with. Delay here is decided on the ground, in the turn, which is why the 5am–8am window matters as much as it does.
The return leg is a different operation and performs like one: it runs 76.6% on time across 6,708 flights, 3 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 3 points of difference.
The sample behind these figures is 6,712 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 LGA to BOS
Put together: the delay figures matter less here than the 5.44% 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. 6,343 completed flights over 12 months sit behind that.
Related
Where to go next
- LGA to BOS, every carrier
- Republic on BOS to LGA, the return leg
- Delta Air Lines on LGA to BOS76.4%
- Republic Airways network-wide record
- LaGuardia (LGA) delay statistics
- Boston Logan International (BOS) 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, July 2025 to June 2026. Last updated 15 September 2026; recomputed monthly. How this data is collected.