BOS → LGA Flight Reliability

Right now

Origin · BOSNo disruption reported

Aviation weather is not currently a factor.

Updated 09:54 UTC

Boston airport profile →

Destination · LGANo disruption reported

Aviation weather is not currently a factor.

Updated 09:51 UTC

New York airport profile →

Route reliability

July 2023 – July 2026

Route Reliability Score

53/ 100Fair

Better than 19% of comparable major US routes (4,598 compared)

Calculated from 22,955 flights. How this is calculated

On-time arrivals

81.1%

17,848 of 22,018

Cancellation rate

4.01%

921 cancelled

Median arrival delay

-11 min

Average 4.1 min

Severe delays

8.5%

60+ minutes late

Delay when late

78 min

Average, when 15+ min late

Flights analyzed

22,955

4 carriers

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

BOS → LGA spends 31.5 minutes on the ground on a 184-mile trip: 22.5 minutes from pushback to wheels-up at BOS and 9.0 minutes from touchdown to gate at LGA.

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

Why BOS → LGA flights are cancelled

July 2023 – July 2026

BOS → LGA cancelled 921 of 22,955 scheduled flights — about 1 in every 25. The reason filed most often was the air traffic system, 42.2% of the cancellations coded on this route — about 1 in every 59 scheduled flights.

Share of cancellations

Air traffic42.2%

Airline29.0%

Weather28.8%

Security0.0%

Of 921 cancelled departures carrying a reason code.

What each reason means

The air traffic system1 in 59

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

389 cancellations, 42.2% of the total.

The airline1 in 86

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

267 cancellations, 29.0% of the total.

Extreme weather1 in 87

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

265 cancellations, 28.8% 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.

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

When it goes wrong

July 2023 – July 2026

One arrival in ten is worse than

49 min late

against a median of 11 min early

Arrived an hour or more late8.5%

Typical delay when late78 min

Cancelled4.01%

Landed somewhere else0.07%

BOS → LGA has an average that understates its risk: a typical arrival is 11 min early, but the worst tenth are 60 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 22,955 operations; cancelled and diverted flights are counted separately.

Will your connection be tight enough?

Layovers at LGA after arriving from BOS.

Connection buffer and chance of missing by layover length, BOS → LGA arrivals
Connection time	Chance of missing	Reads as
30 min	29%	High risk
45 min	19%	High risk
60 min	14%	Some risk
90 min	8.4%	Some risk
120 min	5.4%	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 4.01% of the time and diverts 0.07% of the time, which a late arrival never shows up in.

Chance of missing is the share of 22,018 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 49 minutes late (90th-percentile gate arrival delay), over 22,955 operations.

Any other layover length: connection checker.

Best time to fly

BOS → LGA flights departing 5–9 AM arrived on time 90.2% of the time, against 70.6% for 6–9 PM departures, a gap of 19.6 percentage points.

By day and hour

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

Hour of departure matters more than day of the week: hourly averages sit a typical 7.9 points from the route-wide rate, weekday averages 2.4 points.

On-time arrival rate for BOS to LGA 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

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 before 6 AM and after 9 PM (529 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 BOS to LGA. A dash means fewer than 120 flights, which are not scored.
Hour	Monday	Tuesday	Wednesday	Thursday	Friday	Saturday	Sunday
6 AM–7 AM	92.0% on time391 flights	91.0% on time379 flights	93.2% on time388 flights	93.6% on time383 flights	92.5% on time379 flights	33 flights, too few to score	94 flights, too few to score
7 AM–8 AM	89.9% on time240 flights	91.9% on time242 flights	92.0% on time243 flights	93.2% on time240 flights	86.6% on time239 flights	118 flights, too few to score	95 flights, too few to score
8 AM–9 AM	86.7% on time267 flights	87.9% on time255 flights	91.9% on time259 flights	83.4% on time269 flights	81.2% on time266 flights	84.1% on time128 flights	86.9% on time153 flights
9 AM–10 AM	89.1% on time220 flights	85.7% on time223 flights	91.7% on time220 flights	87.6% on time221 flights	88.7% on time218 flights	66 flights, too few to score	92.5% on time166 flights
10 AM–11 AM	84.6% on time253 flights	84.9% on time257 flights	89.8% on time257 flights	85.4% on time250 flights	87.8% on time251 flights	54 flights, too few to score	80.1% on time161 flights
11 AM–12 PM	85.6% on time210 flights	87.4% on time206 flights	93.2% on time207 flights	87.1% on time205 flights	85.6% on time198 flights	60 flights, too few to score	87.9% on time201 flights
12 PM–1 PM	82.7% on time253 flights	83.1% on time255 flights	84.8% on time252 flights	80.3% on time249 flights	81.7% on time251 flights	83.7% on time123 flights	82.7% on time236 flights
1 PM–2 PM	84.6% on time212 flights	84.5% on time212 flights	90.7% on time221 flights	74.5% on time208 flights	81.6% on time210 flights	74 flights, too few to score	76.8% on time214 flights
2 PM–3 PM	80.5% on time257 flights	82.9% on time257 flights	82.2% on time252 flights	77.4% on time251 flights	79.7% on time257 flights	51 flights, too few to score	77.9% on time251 flights
3 PM–4 PM	76.5% on time211 flights	80.6% on time210 flights	85.7% on time211 flights	76.1% on time209 flights	76.8% on time207 flights	22 flights, too few to score	82.0% on time207 flights
4 PM–5 PM	69.2% on time211 flights	77.2% on time218 flights	68.6% on time215 flights	62.1% on time211 flights	72.6% on time215 flights	56 flights, too few to score	69.8% on time212 flights
5 PM–6 PM	73.4% on time250 flights	83.6% on time242 flights	70.7% on time254 flights	68.1% on time249 flights	72.8% on time246 flights	87.1% on time143 flights	66.9% on time252 flights
6 PM–7 PM	73.8% on time276 flights	75.2% on time284 flights	69.7% on time282 flights	65.4% on time275 flights	68.2% on time275 flights	34 flights, too few to score	66.5% on time273 flights
7 PM–8 PM	74.1% on time274 flights	74.0% on time260 flights	72.8% on time268 flights	65.5% on time271 flights	67.9% on time266 flights	40 flights, too few to score	73.7% on time254 flights
8 PM–9 PM	71.5% on time189 flights	76.1% on time190 flights	66.5% on time190 flights	63.0% on time183 flights	75.6% on time184 flights	20 flights, too few to score	66.9% on time176 flights

By departure window

5–9 AM90.2%

9 AM–12 PM87.5%

12–3 PM81.7%

3–6 PM74.4%

6–9 PM70.6%

9 PM–5 AM73.6%

By departure hour

12 AM

3 AM

6 AM

9 AM

12 PM

3 PM

6 PM

9 PM

Why BOS → LGA runs late

July 2023 – July 2026

Air traffic control36.2%

airspace and airport capacity, including weather-driven flow control

Late-arriving aircraft32.8%

the inbound aircraft was late, so this flight started late

The airline26.9%

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

Weather4.1%

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 BOS → LGA. Only delays of 15 minutes or more are attributed.

How this route holds up in bad weather

July 2023 – July 2026

Bad weather raises cancellations by a similar amount at both ends of BOS to LGA: 3.9 times the normal rate at BOS and 4.1 times at LGA. Cancelled in bad weather against normal hours: BOS 5.3% against 1.4%, LGA 9.0% against 2.2%. 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 BOS and LGA in hours of bad weather and in normal hours
Departures from	BOS	LGA
Cancelled in bad weather	5.3%	9.0%
Cancelled in normal hours	1.4%	2.2%
Arrived on time, bad weather	65.1%	63.6%
Arrived on time, normal hours	79.7%	80.9%
Departures in bad weather	60,840	56,339

Of the carriers on this route, Delta Air Lines (3.1% cancelled against 5.8% for the other carriers at BOS) cancelled the fewest departures from BOS in bad weather and Republic Airways (8.1% cancelled against 5.0% for the other carriers at BOS) the most.

This route’s airlines in bad weather at BOS

All departures from BOS

Cancellation rates in bad weather at BOS for the airlines that fly BOS to LGA, against the other carriers at BOS in the same months
Airline	Bad-weather departures	Cancelled	Other carriers
Delta Air Lines	10,971	3.1%below the others	5.8%
American Airlines	6,964	4.7%below the others	5.5%
JetBlue	17,332	5.4%about level	5.1%
Republic Airways	12,581	8.1%above the others	5.0%

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

Weather source and limits. In full: BOS (airlines), LGA, 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	16,020	80.7%	4.58%	-10 min	8.6%
JetBlue	4,402	79.7%	3.04%	-12 min	8.9%
Delta Air Lines	1,813	87.0%	2.43%	-14 min	6.9%
American Airlines	718	82.9%	1.39%	-14 min	7.2%

Republic Airways flew 69.8% of the 22,953 flights listed. Republic Airways cancelled 4.58% of its flights here against 1.39% for American Airlines.

Delta Air Lines arrived on time 7.3 percentage points more often than JetBlue on this route.

Other ways to fly Boston to New York

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

Other ways to fly Boston to New York
Route	Flights	On time	Cancelled	Median delay	Score
BOS→LGA this route Boston to New York	22,955	81.1%	4.01%	-11 min	53
BOS→JFK Boston to New York	17,280	77.0%	3.47%	-7 min	49
BOS→EWR Boston to Newark	12,192	77.3%	3.85%	-9 min	46

BOS → LGA is the most reliable pairing for this journey at 81.1% on time, against 77.3% for BOS → EWR.

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
YX5721 Republic Airways	5:00 PM	728	72.6%
YX5716 Republic Airways	7:00 PM	649	68.4%
YX5748 Republic Airways	1:00 PM	646	84.1%
YX5735 Republic Airways	8:00 AM	644	86.1%
YX5730 Republic Airways	2:00 PM	638	79.2%
YX5744 Republic Airways	10:00 AM	610	87.1%

YX5744 (10:00 AM) arrived on time 87.1% of the time, 18.7 points more often than YX5716 (7:00 PM) at 68.4%.

Weekly and seasonal patterns

By day of week

Mon81.5%

Tue83.4%

Wed83.3%

Thu78.2%

Fri80.2%

Sat85.6%

Sun77.8%

Saturday is historically the most reliable day and Sunday the least, a gap of 7.8 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 13.0 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 77.1% against 82.3% in the 12 months before — declining by 5.2 percentage points.

Data and methodology

Calculated by FlyerIntel from 22,955 BOS → LGA 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

BOS airport LGA airport Return direction LGA → BOS

BOS→LGA

Right now

Route reliability

Why BOS → LGA 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 BOS → LGA 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 BOS

Airlines on this route

Other ways to fly Boston to New York

Flights on this route

Weekly and seasonal patterns

By day of week

By month

Reliability over time

Data and methodology