Route Reliability

Route reliability

New York (LGA) to Boston (BOS): which airline is most on time?

On-time arrivals, cancellations and long delays for every airline that reported nonstop flights from New York, NY (LGA) to Boston, MA (BOS), September 2025 to August 2026.

Historical performance Official DOT data through August 2026 · Not live flight status

New York, NYBoston, MA

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Three-letter airport codes, nonstop U.S. domestic flights. One direction at a time.

Route at a glance · September 2025 to August 2026

LGA to BOS

New York, NY to Boston, MA

On time
68.5%vs 75.6% U.S. average Worse than average
Cancelled
6.2%vs 1.9% U.S. average Worse than average
60+ min late
10.9%vs 8.1% U.S. average Worse than average
Scheduled flights
7,443in 12 months2 airlines
Most reliable airline
Delta Air Lines69.7% on time · 469 flights

On time less often than the U.S. average, with more cancellations.

Compared with all U.S. flights, September 2025 to August 2026. “About average” means within 1.5 points for on time, 0.3 for cancelled and 1 for 60+ minutes late.

Airlines on this route

Ranked by on-time arrival

Airlines from LGA to BOS, September 2025 to August 2026. Rates are shares of all scheduled flights.
Airline On time Cancelled 60+ min late Avg delay when late Diverted Flights
1. Delta Air Lines Most reliable 69.7% 4.5% 15.1% 82 min 0.2% 469
2. Republic Airways Operating carrier; sold as American Eagle, Delta Connection, United Express 68.5% 6.3% 10.6% 70 min 0.0% 6,974

On time = arrived within 15 minutes of schedule. Avg delay when late = average arrival delay of flights 15+ minutes late. "Most reliable" needs at least 300 flights in 12 months. Tap a heading to sort.

What this means

Delta Air Lines has the strongest record on this route.

  • Delta Air Lines had the best on-time record from New York (LGA) to Boston (BOS): 69.7% of its 469 scheduled flights arrived within 15 minutes of schedule, compared with 68.5% for Republic Airways. The gap is small, so treat the airlines as roughly equal on punctuality.
  • 6.2% of flights on this route were cancelled (about 1 in 16), 4.3 points higher than the U.S. average of 1.9%.
  • 10.9% of flights, about 1 in 9, arrived an hour or more late. When a flight was late (15+ minutes), the average arrival delay was 70 min.
  • Overall, 68.5% of flights on this route arrived on time, 7.1 points lower than the U.S. average of 75.6%.
  • Over the last 3 years, November was the most reliable month on this route (83.3% on time) and July the least reliable (66.1%).
  • Cancellations peaked in July, when 7.9% of flights were cancelled.
  • Flights scheduled to depart 6 am to 7 am were the most punctual (88.9% on time); flights scheduled to depart 7 pm to 8 pm were the least (50.9%).
  • In the other direction, Boston (BOS) to New York (LGA), 71.3% of flights were on time and 6.4% were cancelled. Compare airlines BOS to LGA.

Best and worst months to fly LGA to BOS

Jan 78.0%
Feb 78.7%
Mar 77.3%
Apr 80.8%
May 74.8%
Jun 73.7%
Jul 66.1%
Aug 73.6%
Sep 70.1%
Oct 78.4%
Nov 83.3%
Dec 75.9%
Share of scheduled flights on time 12-month average 68.5%
All airlines combined, by calendar month, September 2023 to August 2026 (3 years pooled). Scale starts at zero.
Show as table
PeriodOn timeFlights
January 78.0% 1,701
February 78.7% 1,752
March 77.3% 1,905
April 80.8% 1,972
May 74.8% 1,942
June 73.7% 1,868
July 66.1% 1,951
August 73.6% 1,888
September 70.1% 1,949
October 78.4% 2,082
November 83.3% 1,871
December 75.9% 1,584
Best and worst calendar month by airline, September 2023 to August 2026.
AirlineBest monthWorst month
Delta Air Lines February (82.2%) June (65.0%)
Republic Airways November (82.2%) July (65.2%)

Month by month, last 12 months

Sep 63.2%
Oct 59.5%
Nov 69.5%
Dec 65.1%
Jan 75.5%
Feb 71.2%
Mar 65.5%
Apr 75.5%
May 76.2%
Jun 73.3%
Jul 61.6%
Aug 67.5%
Share of scheduled flights on time U.S. average 75.6%
All airlines combined, September 2025 to August 2026. Scale starts at zero.
Show as table
PeriodOn timeFlights
Sep 2025 63.2% 634
Oct 2025 59.5% 674
Nov 2025 69.5% 600
Dec 2025 65.1% 504
Jan 2026 75.5% 542
Feb 2026 71.2% 552
Mar 2026 65.5% 615
Apr 2026 75.5% 642
May 2026 76.2% 667
Jun 2026 73.3% 662
Jul 2026 61.6% 683
Aug 2026 67.5% 668

Best and worst departure times

6a 88.9%
7a 85.2%
8a 80.2%
9a 80.2%
10a 77.2%
11a 75.5%
12p 77.2%
1p 73.5%
2p 66.1%
3p 57.6%
4p 53.1%
5p 57.9%
6p 52.0%
7p 50.9%
8p 53.8%
9p 56.3%
10p Insufficient sample
Share of scheduled flights on time
By scheduled local departure hour at LGA, September 2025 to August 2026. Hours with no scheduled flights are omitted. Scale starts at zero.
Show as table
PeriodOn timeFlights
Departing 6 am to 7 am 88.9% 673
Departing 7 am to 8 am 85.2% 351
Departing 8 am to 9 am 80.2% 546
Departing 9 am to 10 am 80.2% 394
Departing 10 am to 11 am 77.2% 531
Departing 11 am to noon 75.5% 355
Departing noon to 1 pm 77.2% 530
Departing 1 pm to 2 pm 73.5% 498
Departing 2 pm to 3 pm 66.1% 345
Departing 3 pm to 4 pm 57.6% 446
Departing 4 pm to 5 pm 53.1% 518
Departing 5 pm to 6 pm 57.9% 611
Departing 6 pm to 7 pm 52.0% 469
Departing 7 pm to 8 pm 50.9% 265
Departing 8 pm to 9 pm 53.8% 383
Departing 9 pm to 10 pm 56.3% 520
Departing 10 pm to 11 pm Insufficient sample 8
Woman at an airport window watching a plane take off
Photo: Depositphotos (licensed stock, illustrative only). Credits

Sources & data dates

Source
U.S. DOT Bureau of Transportation Statistics, Reporting Carrier On-Time Performance (1987-present)
Period
September 2025 to August 2026 (12 months); month-of-year patterns September 2023 to August 2026
Data through
August 2026
Processed
2026-11-03
Scope
Nonstop scheduled flights from New York, NY (LGA) to Boston, MA (BOS), one direction. Airlines that report to the DOT only.
Method
Rates use all scheduled flights as the denominator; cancelled and diverted flights count as not on time. Figures based on fewer than 50 scheduled flights are suppressed. Full methodology.

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