LGA → BOS Flight Reliability

Right now

Origin · LGANo disruption reported

Aviation weather is not currently a factor.

Updated 08:51 UTC

New York airport profile →

Destination · BOSNo disruption reported

Aviation weather is not currently a factor.

Updated 08:54 UTC

Boston airport profile →

Route reliability

July 2023 – July 2026

Route Reliability Score

51/ 100Fair

Better than 16% of comparable major US routes (4,598 compared)

Calculated from 22,962 flights. How this is calculated

On-time arrivals

78.7%

17,399 of 22,098

Cancellation rate

3.68%

845 cancelled

Median arrival delay

-11 min

Average 5.1 min

Severe delays

9.4%

60+ minutes late

Delay when late

76 min

Average, when 15+ min late

Flights analyzed

22,962

4 carriers

LGA → BOS arrives on time 78.7% of the time; the return trip, BOS → LGA, arrives on time 81.1% of the time, a 2.3-point gap between the two directions of the same city pair.

LGA → BOS spends 35.3 minutes on the ground on a 184-mile trip: 25.1 minutes from pushback to wheels-up at LGA and 10.2 minutes from touchdown to gate at BOS.

Source: US DOT Bureau of Transportation Statistics · Data covering July 2023 – July 2026

Why LGA → BOS flights are cancelled

July 2023 – July 2026

LGA → BOS cancelled 845 of 22,962 scheduled flights — about 1 in every 27. The reason filed most often was the air traffic system, 43.3% of the cancellations coded on this route — about 1 in every 63 scheduled flights.

Share of cancellations

Air traffic43.3%

Weather28.9%

Airline27.8%

Security0.0%

Of 845 cancelled departures carrying a reason code.

What each reason means

The air traffic system1 in 63

Airport capacity, air traffic control flow programs, heavy traffic and ordinary bad weather. A system decision, not the airline’s.

366 cancellations, 43.3% of the total.

Extreme weather1 in 94

Conditions the carrier judged severe enough to stop the flight: a blizzard, a hurricane, a line of thunderstorms.

244 cancellations, 28.9% of the total.

The airline1 in 98

Crew, maintenance, aircraft cleaning, baggage or fueling: what BTS counts as within the carrier’s own control.

235 cancellations, 27.8% of the total.

Security—

A terminal evacuation, a security breach, screening equipment failure, or screening queues over 29 minutes.

0 cancellations, 0.0% of the total.

Reason codes are the operating airline’s own filing with US DOT, not an independent finding of fault. Ordinary bad weather is filed under air traffic, so weather’s full share is larger than its bar.

845 coded cancellations were recorded on LGA → BOS; the section appears from 50.

When it goes wrong

July 2023 – July 2026

One arrival in ten is worse than

56 min late

against a median of 11 min early

Arrived an hour or more late9.4%

Typical delay when late76 min

Cancelled3.68%

Landed somewhere else0.08%

LGA → BOS has an average that understates its risk: a typical arrival is 11 min early, but the worst tenth are 67 minutes worse than that. If the trip has something unmissable at the end of it, the median is the wrong number to plan against.

Percentiles over 22,962 operations; cancelled and diverted flights are counted separately.

Will your connection be tight enough?

Layovers at BOS after arriving from LGA.

Connection buffer and chance of missing by layover length, LGA → BOS arrivals
Connection time	Chance of missing	Reads as
30 min	32%	Likely to miss
45 min	21%	High risk
60 min	16%	High risk
90 min	9.2%	Some risk
120 min	5.6%	Some risk

This is one leg of a connection. Gate changes and the next flight's own schedule matter too. And a connection can fail before delay is even the question — this route cancels 3.68% of the time and diverts 0.08% of the time, which a late arrival never shows up in.

Chance of missing is the share of 22,098 arrivals on this route that landed later than the connection time less 30 minutes to reach the next gate.

The worst tenth of arrivals on this route land at least 56 minutes late (90th-percentile gate arrival delay), over 22,962 operations.

Any other layover length: connection checker.

Best time to fly

LGA → BOS flights departing 5–9 AM arrived on time 90.3% of the time, against 66.0% for 9 PM–5 AM departures, a gap of 24.3 percentage points.

By day and hour

On-time arrival rate for each weekday and scheduled departure hour, in local time at the departure airport (LGA).

Hour of departure matters more than day of the week: hourly averages sit a typical 9.0 points from the route-wide rate, weekday averages 2.9 points.

On-time arrival rate for LGA to BOS by weekday and scheduled departure hour, local time. Each button reads out one slot.
Hour	Monday	Tuesday	Wednesday	Thursday	Friday	Saturday	Sunday
6 AM–7 AM
7 AM–8 AM
8 AM–9 AM
9 AM–10 AM
10 AM–11 AM
11 AM–12 PM
12 PM–1 PM
1 PM–2 PM
2 PM–3 PM
3 PM–4 PM
4 PM–5 PM
5 PM–6 PM
6 PM–7 PM
7 PM–8 PM
8 PM–9 PM
9 PM–10 PM

On-time rate, % · stronger color, fewer on time

60–64
65–69
70–74
75–79
80–84
85–89
90–94

Fewer than 120 flights, not scored

Source: FlyerIntel analysis of US DOT BTS data · July 2023 – July 2026 · On time is arrival within 15 minutes of schedule. Cells round to whole percentages; the table shows one decimal.

No slot is named best or worst: too few reach 500 flights. Departures after 10 PM (8 flights) are not drawn: no slot in those hours has enough flights to score.

View as tableHide table

On-time arrival rate (%) with flights beneath, by scheduled departure hour and weekday for LGA to BOS. A dash means fewer than 120 flights, which are not scored.
Hour	Monday	Tuesday	Wednesday	Thursday	Friday	Saturday	Sunday
6 AM–7 AM	90.2% on time328 flights	93.2% on time324 flights	93.8% on time329 flights	92.2% on time327 flights	92.4% on time324 flights	51 flights, too few to score	44 flights, too few to score
7 AM–8 AM	90.5% on time218 flights	88.5% on time213 flights	91.7% on time219 flights	88.8% on time209 flights	89.7% on time208 flights	91.9% on time127 flights	118 flights, too few to score
8 AM–9 AM	86.5% on time242 flights	86.5% on time247 flights	94.0% on time250 flights	85.5% on time245 flights	85.5% on time240 flights	88.4% on time124 flights	105 flights, too few to score
9 AM–10 AM	92.8% on time324 flights	90.0% on time325 flights	88.1% on time321 flights	87.9% on time316 flights	84.4% on time317 flights	68 flights, too few to score	89.4% on time192 flights
10 AM–11 AM	86.5% on time208 flights	86.9% on time204 flights	87.4% on time208 flights	82.0% on time207 flights	84.4% on time201 flights	41 flights, too few to score	84.6% on time142 flights
11 AM–12 PM	85.4% on time198 flights	87.9% on time212 flights	90.3% on time211 flights	86.9% on time200 flights	85.7% on time199 flights	82 flights, too few to score	85.4% on time159 flights
12 PM–1 PM	79.9% on time276 flights	82.6% on time276 flights	87.0% on time273 flights	81.6% on time273 flights	80.0% on time275 flights	115 flights, too few to score	82.7% on time286 flights
1 PM–2 PM	75.6% on time219 flights	82.9% on time210 flights	80.6% on time217 flights	77.0% on time217 flights	74.5% on time211 flights	26 flights, too few to score	74.6% on time207 flights
2 PM–3 PM	69.3% on time200 flights	72.9% on time192 flights	78.5% on time190 flights	73.6% on time184 flights	72.1% on time188 flights	41 flights, too few to score	70.7% on time196 flights
3 PM–4 PM	62.9% on time231 flights	78.7% on time240 flights	73.1% on time239 flights	60.5% on time229 flights	68.1% on time233 flights	75 flights, too few to score	67.5% on time233 flights
4 PM–5 PM	66.7% on time256 flights	70.5% on time260 flights	71.7% on time261 flights	64.5% on time252 flights	69.0% on time257 flights	36 flights, too few to score	70.3% on time255 flights
5 PM–6 PM	69.7% on time274 flights	72.8% on time257 flights	71.5% on time263 flights	65.0% on time275 flights	72.1% on time279 flights	80.3% on time147 flights	69.5% on time262 flights
6 PM–7 PM	70.8% on time248 flights	73.9% on time249 flights	67.2% on time251 flights	61.0% on time244 flights	68.6% on time240 flights	62 flights, too few to score	66.4% on time247 flights
7 PM–8 PM	65.7% on time148 flights	80.7% on time153 flights	70.0% on time155 flights	71.7% on time154 flights	67.5% on time166 flights	14 flights, too few to score	65.1% on time155 flights
8 PM–9 PM	76.7% on time313 flights	75.3% on time305 flights	70.9% on time313 flights	64.7% on time314 flights	66.9% on time295 flights	20 flights, too few to score	64.3% on time310 flights
9 PM–10 PM	111 flights, too few to score	111 flights, too few to score	114 flights, too few to score	113 flights, too few to score	68.4% on time121 flights	2 flights, too few to score	113 flights, too few to score

By departure window

5–9 AM90.3%

9 AM–12 PM87.4%

12–3 PM78.5%

3–6 PM69.8%

6–9 PM69.7%

9 PM–5 AM66.0%

By departure hour

12 AM

3 AM

6 AM

9 AM

12 PM

3 PM

6 PM

9 PM

Why LGA → BOS runs late

July 2023 – July 2026

Late-arriving aircraft36.9%

the inbound aircraft was late, so this flight started late

Air traffic control34.5%

airspace and airport capacity, including weather-driven flow control

The airline26.3%

crew, maintenance, boarding and fueling, all within the carrier’s control

Weather2.3%

weather severe enough to stop this flight specifically

Security0.1%

screening or terminal security incidents

Share of the delay minutes US DOT attributed to each cause for LGA → BOS. Only delays of 15 minutes or more are attributed.

Late-arriving aircraft is the largest cause on LGA → BOS, at 36.9%: flights here mostly leave late because the plane came in late, and the day shows it: 5–9 AM departures arrived on time 90.3% of the time and 9 PM–5 AM departures 66.0%.

How this route holds up in bad weather

July 2023 – July 2026

Bad weather raises cancellations by a similar amount at both ends of LGA to BOS: 4.1 times the normal rate at LGA and 3.9 times at BOS. Cancelled in bad weather against normal hours: LGA 9.0% against 2.2%, BOS 5.3% against 1.4%. Flights that did leave LGA in bad weather arrived on time 63.6% of the time, against 80.9% in normal hours.

Bad weather and normal hours at the airports

Scheduled departures, July 2023 – July 2026

Departures from LGA and BOS in hours of bad weather and in normal hours
Departures from	LGA	BOS
Cancelled in bad weather	9.0%	5.3%
Cancelled in normal hours	2.2%	1.4%
Arrived on time, bad weather	63.6%	65.1%
Arrived on time, normal hours	80.9%	79.7%
Departures in bad weather	56,339	60,840

Of the carriers on this route, Delta Air Lines (6.5% cancelled against 9.9% for the other carriers at LGA) cancelled the fewest departures from LGA in bad weather and Republic Airways (12.4% cancelled against 8.3% for the other carriers at LGA) the most.

This route’s airlines in bad weather at LGA

All departures from LGA

Cancellation rates in bad weather at LGA for the airlines that fly LGA to BOS, against the other carriers at LGA in the same months
Airline	Bad-weather departures	Cancelled	Other carriers
Delta Air Lines	10,841	6.5%below the others	9.9%
American Airlines	6,685	7.6%below the others	9.3%
JetBlue	3,007	6.9%below the others	8.3%
Republic Airways	18,154	12.4%above the others	8.3%

These are airport figures, not route figures: every scheduled departure from LGA and BOS, to any destination, in hours the weather report called bad. The airline rows count each carrier’s departures from LGA on every route.

Weather source and limits. In full: LGA (airlines), BOS, What Weather Costs Each Airport, Who Cancels More When the Weather Turns, Airports That Change Places When Weather Turns.

Airlines on this route

Carriers with at least 200 flights, by the airline that operated each one.

Airlines on this route
Carrier	Flights	On time	Cancelled	Median delay	Severe
Republic Airways	16,024	78.8%	4.07%	-10 min	8.8%
JetBlue	4,408	80.3%	3.22%	-15 min	9.4%
Delta Air Lines	1,814	73.7%	2.21%	-9 min	14.3%
American Airlines	716	79.5%	1.54%	-14 min	9.1%

Republic Airways flew 69.8% of the 22,962 flights listed. Republic Airways cancelled 4.07% of its flights here against 1.54% for American Airlines.

JetBlue arrived on time 6.6 percentage points more often than Delta Air Lines on this route.

Other ways to fly New York to Boston

Airport pairs in the same two city markets, as the DOT defines them.

Other ways to fly New York to Boston
Route	Flights	On time	Cancelled	Median delay	Score
LGA→BOS this route New York to Boston	22,962	78.7%	3.68%	-11 min	51
JFK→BOS New York to Boston	17,279	74.8%	3.33%	-8 min	43
EWR→BOS Newark to Boston	12,190	74.3%	3.57%	-8 min	42

LGA → BOS is the most reliable pairing for this journey at 78.7% on time, against 74.3% for EWR → BOS.

Flying to BOS from the New York area? Compare LGA, EWR, JFK for BOS, with the same test for what counts as a real difference.

Flights on this route

Flight numbers with at least 600 operations here and still on the schedule.

Flights on this route
Flight	Scheduled	Operations	On time
YX5761 Republic Airways	12:00 PM	759	83.6%
YX5725 Republic Airways	5:00 PM	739	72.5%
YX5727 Republic Airways	3:00 PM	678	69.6%
YX5745 Republic Airways	11:00 AM	652	85.2%
YX5746 Republic Airways	6:59 PM	628	64.2%

YX5745 (11:00 AM) arrived on time 85.2% of the time, 21.0 points more often than YX5746 (6:59 PM) at 64.2%.

Weekly and seasonal patterns

By day of week

Mon78.3%

Tue81.5%

Wed81.2%

Thu76.1%

Fri77.5%

Sat86.5%

Sun74.6%

Saturday is historically the most reliable day and Sunday the least, a gap of 11.9 percentage points.

By month

Jan

Feb

Mar

Apr

May

Jun

Jul

Aug

Sep

Oct

Nov

Dec

July is historically the weakest month and November the strongest, a spread of 13.2 percentage points.

Reliability over time

July 2023 – July 2026

24

25

26

Over the most recent 12 months (2025-08 to 2026-07), on-time arrivals averaged 73.7% against 80.6% in the 12 months before — declining by 6.9 percentage points.

Data and methodology

Calculated by FlyerIntel from 22,962 LGA → BOS flight records from the US DOT Bureau of Transportation Statistics, covering July 2023 – July 2026. Late means 15 or more minutes past scheduled arrival; cancelled and diverted flights are left out of on-time rates.

Full methodology · Data sources · Report a problem

Analysis last recomputed September 26, 2026

LGA airport BOS airport Return direction BOS → LGA

LGA→BOS

Right now

Route reliability

Why LGA → BOS flights are cancelled

Share of cancellations

What each reason means

When it goes wrong

Will your connection be tight enough?

Best time to fly

By day and hour

By departure window

By departure hour

Why LGA → BOS runs late

How this route holds up in bad weather

Bad weather and normal hours at the airports

This route’s airlines in bad weather at LGA

Airlines on this route

Other ways to fly New York to Boston

Flights on this route

Weekly and seasonal patterns

By day of week

By month

Reliability over time

Data and methodology