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DelayAtlas

Airport month record

LGAJUN

LaGuardia in June 2026

Departures
10,877
Month
June 2026
National, same month
74.3%
Carriers
7
B−GRADE

Historical statistics for June 2026, not live status or a forecast for this year’s June. For today’s conditions at LGA, see live FAA status.

LGA in June carries a cancellation problem, not just a delay problem: 4.2% of scheduled flights never operate, against 1.6% nationally. Of the ones that do fly, close to three flights in four arrive on time, worth a B− overall. The punctuality figure counts only flights that actually departed, so it flatters an operation that cancels this often. That rests on 10,877 flights, of which Republic Airways flew 4,714 at 80.4% on time.

Republic Airways is the most reliable of the five carriers covered here at 80.4% on time across 4,714 flights.

Key figures

On time

75.3%

Arrivals under 15 minutes late, of 10,363 completed departures

Avg delay

81 min

Across delayed arrivals only, not all flights

Cancelled

4.16%

Nationally in June: 1.65%

Whole year

73.4%

LGA across all twelve months

These figures cover 10,877 departures from LaGuardia in June 2026. On time means an arrival less than 15 minutes after the scheduled gate time, the DOT's threshold, and the national comparison uses every US departure in the same month rather than the whole year.

Against the year

June next to LGA's other months

Against LGA's own year, June ran 2 points better than the twelve-month rate of 73.4%, which makes it number seven of twelve months, best first.

LGA month by month
MonthFlightsOn timeAvg delayCancelledGrade
July 202511,69668.0%106 min8.76%C−
August 202511,58281.0%81 min1.79%B
September 202511,38882.4%77 min0.89%B+
October 202512,00266.8%68 min2.58%C
November 202511,57767.9%78 min3.63%C−
December 202511,36162.2%74 min4.81%D−
January 202611,09978.9%66 min7.77%B−
February 202610,30778.5%66 min8.22%B−
March 202611,66067.9%77 min9.73%C−
April 202611,44376.5%69 min0.95%B+
May 202611,37575.4%68 min1.83%B
June 2026 (this page)10,87775.3%81 min4.16%B−

Departure window

The best time of day to leave LGA in June

Departure time matters more here than the choice of carrier. The gap between the best and worst window is 24 points, against 18 points between the best and worst carrier. Each bar is the on-time rate for flights scheduled inside that window.

  • 5am–8am1,613 flights87.5%
  • 8am–11am1,946 flights86.1%
  • 11am–2pm1,893 flights82.6%
  • 2pm–5pm2,220 flights66.1%
  • 5pm–8pm1,933 flights63.6%
  • 8pm–5am1,272 flights63.8%

Scale runs 55% to 95%. Rows with fewer than 30 flights show a dash.

The 5pm–8pm window is where this operation falls apart: 63.6% on time, against 87.5% 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 2pm–5pm window is the busiest, with 2,220 flights scheduled in it.

Across the week, Tuesday is the strongest day at 79.2% on time and Saturday the weakest at 70.3%. 9 points is a smaller lever than departure hour, but it is free.

On-time rate by day of the week76.5Mon79.2Tue70.4Wed78.1Thu78.3Fri70.3Sat71.4Sun
Monday: 76.5 percent on time. Tuesday: 79.2 percent on time. Wednesday: 70.4 percent on time. Thursday: 78.1 percent on time. Friday: 78.3 percent on time. Saturday: 70.3 percent on time. Sunday: 71.4 percent on time

Carrier by carrier

Which airlines ran best at LGA in June

The choice of carrier is not cosmetic here. Republic Airways arrives on time 80.4% of the time; Southwest Airlines manages 62.6%. Sample sizes sit next to every figure, because a two-point gap across 984 flights means less than a ten-point one.

Carriers at LGA in June 2026
AirlineFlightsOn timeAvg delayCancelledGrade
Republic Airways4,71480.4%71 min4.92%B−
Delta Air Lines2,37977.5%81 min2.61%B
American Airlines1,44271.1%106 min4.72%C−
Southwest Airlines98462.6%67 min3.86%D−
United Airlines81868.7%94 min2.69%C
JetBlue Airwaysthin sample36072.3%76 min3.06%C−
Frontier Airlinesthin sample18053.4%90 min10.56%F−

Republic Airways cancels 4.9% 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

Busiest routes out of LGA in June

Routes from LGA in June 2026
RouteFlightsOn timeAvg delayCancelledGrade
LGA to ORD · Chicago96868.0%110 min5.58%C−
LGA to ATL · Atlanta66579.7%79 min4.36%B−
LGA to BOS · Boston66276.7%66 min4.53%B−
LGA to DFW · Dallas-Fort Worth53467.3%97 min6.93%C−
LGA to MIA · Miami44276.6%98 min2.26%B
LGA to DCA · Washington41271.8%51 min4.61%C−
LGA to DEN · Denver39459.9%64 min2.03%D
LGA to MCO · Orlandothin sample34570.6%113 min3.19%C−
LGA to IAH · Houstonthin sample34072.9%77 min0.88%C+
LGA to FLL · Fort Lauderdalethin sample33474.8%71 min2.40%C
LGA to CLT · Charlottethin sample32678.2%83 min4.91%B−
LGA to BNA · Nashvillethin sample28671.4%70 min3.50%C−
LGA to PIT · Pittsburghthin sample27086.4%57 min4.44%A−
LGA to DTW · Detroitthin sample25574.8%93 min3.53%C−
LGA to PBI · West Palm Beachthin sample23382.0%76 min3.43%B−
LGA to IND · Indianapolisthin sample22780.8%86 min5.73%B−
LGA to CMH · Columbusthin sample22080.2%90 min3.64%B−
LGA to MDW · Chicagothin sample20664.4%71 min4.37%D−
LGA to STL · St. Louisthin sample20476.2%81 min4.41%B−
LGA to TPA · Tampathin sample19078.2%66 min1.05%B
LGA to RIC · Richmondthin sample18382.5%67 min9.29%B−
LGA to MCI · Kansas Citythin sample17266.1%63 min4.07%C−
LGA to RDU · Raleighthin sample15479.6%100 min4.55%B−
LGA to MSP · Minneapolisthin sample15187.2%73 min0.00%A+
LGA to DAL · Dallasthin sample13867.2%67 min2.17%C

Delay causes

What held LGA up in June

Carriers report a reason for every delay minute they cause, in five DOT categories. The split below is by minutes, not by number of flights, so a handful of very long weather delays weighs as much as many short ones. It covers 206,000 reported delay minutes.

  • Late-arriving aircraft
    41%
  • National Airspace System
    28%
  • Carrier
    24%
  • Extreme weather
    7%
  • Security
    0%

41% of delay minutes trace back to a late-arriving aircraft, meaning the plane was already behind before it got here. That is a cascade, and cascades start small and grow through the day. Across 206,000 reported delay minutes here, that single category outweighs weather by 6 to one. It is the strongest argument for booking the first departure of the morning, when the aircraft has been sitting at the gate overnight with nothing to inherit. The split is drawn from 206,103 reported delay minutes.

Cancellations run at 4.16%, against 1.65% 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.

For anyone connecting, the number to weigh is not the on-time rate but the tail behind it. 10.4% of arrivals land a full hour or more behind schedule, against 9.7% nationally. A 45-minute layover does not survive that, and no amount of walking quickly changes it. Ninety minutes is the honest minimum here, and two hours if the onward flight is on a separate ticket.

What to do with this

Flying from LGA in June

For a June trip through LGA: expect 75.3% on time and 4.16% cancelled, going by June 2026. The 5am–8am window was the strongest part of the day.

Related

Where to go next

Source: US DOT Bureau of Transportation Statistics, on-time performance data, July 2025 to June 2026. Last updated 15 September 2026; recomputed monthly. How this data is collected.