Route Reliability

Route reliability

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

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

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

Boston, MANew York, NY

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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

BOS to LGA

Boston, MA to New York, NY

On time
71.3%vs 75.6% U.S. average Worse than average
Cancelled
6.4%vs 1.9% U.S. average Worse than average
60+ min late
10.7%vs 8.1% U.S. average Worse than average
Scheduled flights
7,442in 12 months2 airlines
Most reliable airline
Delta Air Lines86.2% on time · 471 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 BOS to LGA, 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 86.2% 4.9% 4.5% 123 min 0.2% 471
2. Republic Airways Operating carrier; sold as American Eagle, Delta Connection, United Express 70.3% 6.5% 11.1% 77 min 0.0% 6,971

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 Boston (BOS) to New York (LGA): 86.2% of its 471 scheduled flights arrived within 15 minutes of schedule, compared with 70.3% for Republic Airways.
  • 6.4% of flights on this route were cancelled (about 1 in 16), 4.5 points higher than the U.S. average of 1.9%.
  • 10.7% of flights, about 1 in 9, arrived an hour or more late. When a flight was late (15+ minutes), the average arrival delay was 78 min.
  • Overall, 71.3% of flights on this route arrived on time, 4.3 points lower than the U.S. average of 75.6%.
  • Over the last 3 years, November was the most reliable month on this route (85.1% on time) and July the least reliable (67.2%).
  • Cancellations peaked in July, when 9.1% of flights were cancelled.
  • Flights scheduled to depart 6 am to 7 am were the most punctual (88.8% on time); flights scheduled to depart 8 pm to 9 pm were the least (52.6%).
  • In the other direction, New York (LGA) to Boston (BOS), 68.5% of flights were on time and 6.2% were cancelled. Compare airlines LGA to BOS.

Best and worst months to fly BOS to LGA

Jan 74.4%
Feb 79.0%
Mar 76.5%
Apr 82.5%
May 77.9%
Jun 75.9%
Jul 67.2%
Aug 74.2%
Sep 78.2%
Oct 83.6%
Nov 85.1%
Dec 77.6%
Share of scheduled flights on time 12-month average 71.3%
All airlines combined, by calendar month, September 2023 to August 2026 (3 years pooled). Scale starts at zero.
Show as table
PeriodOn timeFlights
January 74.4% 1,705
February 79.0% 1,750
March 76.5% 1,906
April 82.5% 1,971
May 77.9% 1,939
June 75.9% 1,870
July 67.2% 1,948
August 74.2% 1,889
September 78.2% 1,948
October 83.6% 2,080
November 85.1% 1,870
December 77.6% 1,582
Best and worst calendar month by airline, September 2023 to August 2026.
AirlineBest monthWorst month
Delta Air Lines November (92.3%) January (74.3%)
Republic Airways November (83.0%) July (65.4%)

Month by month, last 12 months

Sep 75.1%
Oct 68.0%
Nov 72.6%
Dec 71.5%
Jan 73.1%
Feb 74.5%
Mar 58.6%
Apr 78.2%
May 78.7%
Jun 77.6%
Jul 61.5%
Aug 67.1%
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 75.1% 634
Oct 2025 68.0% 674
Nov 2025 72.6% 599
Dec 2025 71.5% 506
Jan 2026 73.1% 543
Feb 2026 74.5% 550
Mar 2026 58.6% 616
Apr 2026 78.2% 642
May 2026 78.7% 666
Jun 2026 77.6% 661
Jul 2026 61.5% 683
Aug 2026 67.1% 668

Best and worst departure times

<6a Insufficient sample
6a 88.8%
7a 86.3%
8a 83.1%
9a 81.2%
10a 82.3%
11a 77.8%
12p 76.4%
1p 73.4%
2p 71.8%
3p 68.4%
4p 57.6%
5p 58.4%
6p 57.3%
7p 53.7%
8p 52.6%
9p 52.9%
10p 65.3%
Share of scheduled flights on time
By scheduled local departure hour at BOS, September 2025 to August 2026. Hours with no scheduled flights are omitted. Scale starts at zero.
Show as table
PeriodOn timeFlights
Departing before 6 am Insufficient sample 1
Departing 6 am to 7 am 88.8% 529
Departing 7 am to 8 am 86.3% 532
Departing 8 am to 9 am 83.1% 498
Departing 9 am to 10 am 81.2% 345
Departing 10 am to 11 am 82.3% 691
Departing 11 am to noon 77.8% 454
Departing noon to 1 pm 76.4% 509
Departing 1 pm to 2 pm 73.4% 459
Departing 2 pm to 3 pm 71.8% 451
Departing 3 pm to 4 pm 68.4% 348
Departing 4 pm to 5 pm 57.6% 510
Departing 5 pm to 6 pm 58.4% 469
Departing 6 pm to 7 pm 57.3% 471
Departing 7 pm to 8 pm 53.7% 499
Departing 8 pm to 9 pm 52.6% 397
Departing 9 pm to 10 pm 52.9% 204
Departing 10 pm to 11 pm 65.3% 75
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 Boston, MA (BOS) to New York, NY (LGA), 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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