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DelayAtlas

Carrier performance at one airport

AA→LGA

American Airlines at LaGuardia

Departures
17,147
Period
September 2025 to August 2026
Routes
13
Rank here
#4 of 9
C−GRADE

American Airlines at New York carries a cancellation problem, not just a delay problem: 4.2% of scheduled flights never operate, against 1.9% nationally. Of the ones that do fly, about seven flights in ten 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 17,147 flights, of which Republic Airways flew 56,427 at 74.2% on time.

Measured against the airport rather than the country, American Airlines runs about a point behind the 72.4% weighted average across all carriers at LGA. That is the comparison worth making: every operator here works the same runways, the same airspace and the same weather.

Key figures

On time

71.1%

16,347 completed departures

Avg delay

92 min

Across delayed flights only

Cancelled

4.16%

At LGA, this carrier only

Rank here

#4

Of 9 carriers clearing the floor at LGA

These figures cover 17,000 flights between September 2025 and August 2026. Beyond the headline rate, 12.8% of arrivals land a full hour or more behind schedule, against 8.3% nationally.

Against the competition

Every carrier at LGA, ranked

The choice of carrier is not cosmetic here. Republic Airways arrives on time 74.2% of the time; Frontier Airlines manages 57.3%. Sample sizes sit next to every figure, because a two-point gap across 2,324 flights means less than a ten-point one.

On-time performance of all carriers departing LGA
AirlineFlightsOn timeAvg delayCancelledGrade
Republic Airways56,42774.2%69 min6.00%C−
Delta Air Lines29,53174.0%78 min4.28%C−
United Airlines9,06871.4%88 min3.11%C−
American Airlines (this page)17,14771.1%92 min4.16%C−
Spirit Airlines3,95370.8%80 min6.96%C−
Southwest Airlines11,71568.7%67 min4.30%C−
SkyWest Airlines63066.4%89 min4.44%C−
JetBlue Airways4,45866.4%79 min4.46%C−
Frontier Airlines2,32457.3%112 min7.31%D−

Frontier Airlines cancels 7.3% of what it schedules here, the highest in the table. A cancelled flight never appears in an on-time rate, so read that column alongside the punctuality one rather than after it.

Route by route

Where American Airlines flies from LGA

American Airlines operates 13 routes out of LGA with enough volume to report. Route records inside one carrier at one airport still spread widely, because a short shuttle and a transcontinental have very different exposure to a late inbound.

American Airlines routes from LGA
RouteFlightsOn timeAvg delayCancelledGrade
LGA to DFW · Dallas-Fort Worth4,30971.2%93 min4.92%C−
LGA to MIA · Miami3,57070.5%95 min3.92%C−
LGA to ORD · Chicago2,98969.2%89 min4.78%C−
LGA to CLT · Charlotte2,76977.4%104 min3.79%B−
LGA to MCO · Orlando89969.4%77 min3.00%C
LGA to TPA · Tampa68365.9%76 min2.49%C
LGA to FLL · Fort Lauderdale59568.6%76 min3.53%C−
LGA to PBI · West Palm Beach40570.4%109 min3.95%C−
LGA to MSY · New Orleansthin sample34568.4%78 min2.90%C
LGA to RSW · Fort Myersthin sample20069.6%68 min4.50%C−
LGA to BNA · Nashvillethin sample11369.4%186 min4.42%C−
LGA to RDU · Raleighthin sample8838.6%111 min5.68%F−
LGA to PWM · Portlandthin sample7688.2%71 min0.00%A+

Flight by flight

American Airlines flight numbers from LGA

1 American Airlines flight numbers leaving LGA flew their main route often enough to have a record of their own. Grouped by destination.

Departure window

Best time of day for this operation

Departure time matters more here than the choice of carrier. The gap between the best and worst window is 29 points, against 17 points between the best and worst carrier.

  • 5am–8am3,150 flights87.3%
  • 8am–11am3,388 flights77.5%
  • 11am–2pm3,020 flights73.9%
  • 2pm–5pm3,201 flights60.9%
  • 5pm–8pm3,575 flights57.9%
  • 8pm–5am813 flights66.7%

Scale runs 50% to 95%.

The 5pm–8pm window is where this operation falls apart: 57.9% on time, against 87.3% 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 5pm–8pm window is the busiest, with 3,575 flights scheduled in it.

Across the year

Seasonal pattern

On-time rate by calendar month79J77F69M78A73M71J69J67A78S66O66N64D
Darker means more delays. Figures are on-time percentages.January best, December worst

December is the weak month at 63.6% on time, against 78.7% in January. Winter delays cluster: a single storm system can account for most of a month's shortfall, so an average December hides both very good weeks and genuinely unflyable days. August was the busiest month here, with 1,606 flights.

Delay causes

What holds this operation up

  • Late-arriving aircraft
    48%
  • National Airspace System
    23%
  • Carrier
    21%
  • Extreme weather
    8%
  • Security
    0%

48% of delay minutes trace back to a late-arriving aircraft, meaning the plane was already behind before it got here. Across 437,000 reported delay minutes here, that single category outweighs weather by 6 to one. The split is drawn from 436,589 reported delay minutes.

Cancellations run at 4.16%, against 1.89% nationally. That is about one flight in 25 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.

12.8% of arrivals land a full hour or more behind schedule, against 8.3% nationally. Ninety minutes is the honest minimum for a connection here, and two hours if the onward flight is on a separate ticket.

17,147 flights sit behind these numbers, which is a large enough sample that the headline rate is not moving on noise. Where a sub-group falls below 30 flights the site shows a dash instead of a percentage.

Put together: the delay figures matter less here than the 4.16% cancellation rate. A late arrival costs you an hour and a half; 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. 16,347 completed flights over 12 months sit behind that.

Common questions

American Airlines at LGA

How often is American Airlines at LGA delayed?

Roughly one flight in three arrives at least 15 minutes late, which is the Department of Transportation's definition of a delayed arrival. That works out to 28.9% of the 17,147 flights in this analysis, against 22.7% nationally. Delayed flights are late by an hour and a half on average.

Which airline is most reliable on American Airlines at LGA?

Republic Airways leads at 74.2% on time across 56,427 flights. Frontier Airlines is at the other end on 57.3%, a gap of 17 points. Sample size matters as much as the percentage: a rate built from a few hundred flights moves around far more than one built from ten thousand.

What time of day has the fewest delays on American Airlines at LGA?

The 5am–8am departure window is the strongest at 87.3% on time. The 5pm–8pm window is the weakest at 57.9%, 29 points behind. Later departures inherit delays from earlier flights the same aircraft has already flown, which is why the curve slopes the way it does.

How bad are December delays on American Airlines at LGA?

December is the weakest month at 63.6% on time, compared with 78.7% in January. Across the year that is 15 points between the best and worst months. Moving flexible dates out of that month is one of the few things that reliably helps.

Related

Where to go next

Source: US DOT Bureau of Transportation Statistics, on-time performance data, September 2025 to August 2026. Last updated ; recomputed monthly. How this data is collected.