Route profile
LGA→MIA
Flight reliability, delays and best times to fly from New York to Miami, 1,096 miles.
Right now
Aviation weather is not currently a factor.
Aviation weather is not currently a factor.
Route reliability
July 2023 – July 2026
Better than 10% of comparable major US routes (4,598 compared)
Calculated from 17,949 flights. How this is calculated
LGA → MIA arrives on time 74.0% of the time; the return trip, MIA → LGA, arrives on time 71.1% of the time, a 3.0-point gap between the two directions of the same city pair.
LGA → MIA spends 34.9 minutes on the ground on a 1,096-mile trip: 24.4 minutes from pushback to wheels-up at LGA and 10.5 minutes from touchdown to gate at MIA.
Source: US DOT Bureau of Transportation Statistics · Data covering July 2023 – July 2026
What stands out
This route's worst arrivals run unusually far past its typical one, a bigger gap than 92% of 4,598 comparable routes.
A typical arrival is 8 min early, but the worst tenth run 73 minutes worse than that.
Source: FlyerIntel analysis of US DOT BTS data · July 2023 – July 2026 · Ranked against every other route with the same kind of figure and at least 4,598 in the comparison.
Why LGA → MIA flights are cancelled
July 2023 – July 2026
LGA → MIA cancelled 483 of 17,949 scheduled flights — about 1 in every 37. The reason filed most often was extreme weather, 72.3% of the cancellations coded on this route — about 1 in every 51 scheduled flights.
Share of cancellations
Of 483 cancelled departures carrying a reason code.
What each reason means
Conditions the carrier judged severe enough to stop the flight: a blizzard, a hurricane, a line of thunderstorms.
349 cancellations, 72.3% of the total.
Crew, maintenance, aircraft cleaning, baggage or fueling: what BTS counts as within the carrier’s own control.
78 cancellations, 16.1% of the total.
Airport capacity, air traffic control flow programs, heavy traffic and ordinary bad weather. A system decision, not the airline’s.
56 cancellations, 11.6% of the total.
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.
483 coded cancellations were recorded on LGA → MIA; the section appears from 50.
When it goes wrong
July 2023 – July 2026
65 min late
against a median of 8 min early
LGA → MIA has an average that understates its risk: a typical arrival is 8 min early, but the worst tenth are 73 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 17,949 operations; cancelled and diverted flights are counted separately.
Will your connection be tight enough?
Layovers at MIA after arriving from LGA.
| Connection time | Chance of missing | Reads as |
|---|---|---|
| 30 min | 38% | Likely to miss |
| 45 min | 25% | High risk |
| 60 min | 18% | High risk |
| 90 min | 11% | Some risk |
| 120 min | 7.1% | 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 2.69% of the time and diverts 0.37% of the time, which a late arrival never shows up in.
Chance of missing is the share of 17,399 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 65 minutes late (90th-percentile gate arrival delay), over 17,949 operations.
Any other layover length: connection checker.
Best time to fly
LGA → MIA flights departing 5–9 AM arrived on time 88.1% of the time, against 62.6% for 3–6 PM departures, a gap of 25.5 percentage points.
By day and hour
On-time arrival rate for each weekday and scheduled departure hour, in local time at the departure airport (LGA).
Hour of departure matters more than day of the week: hourly averages sit a typical 10.1 points from the route-wide rate, weekday averages 3.6 points.
| Hour | Monday | Tuesday | Wednesday | Thursday | Friday | Saturday | Sunday |
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| 7 PM–8 PM |
On-time rate, % · stronger color, fewer on time
- 50–59
- 60–69
- 70–79
- 80–89
- 90–99
- 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 8 PM (882 flights) are not drawn: no slot in those hours has enough flights to score.
View as tableHide table
| Hour | Monday | Tuesday | Wednesday | Thursday | Friday | Saturday | Sunday |
|---|---|---|---|---|---|---|---|
| 6 AM–7 AM | 92.0% on time301 flights | 91.8% on time304 flights | 91.1% on time299 flights | 90.7% on time296 flights | 90.6% on time299 flights | 87.6% on time295 flights | 90.9% on time284 flights |
| 7 AM–8 AM | 86.8% on time265 flights | 89.1% on time264 flights | 86.7% on time268 flights | 82.6% on time266 flights | 85.7% on time267 flights | 89.7% on time249 flights | 82.6% on time256 flights |
| 8 AM–9 AM | 82 flights, too few to score | 81 flights, too few to score | 86 flights, too few to score | 83 flights, too few to score | 85 flights, too few to score | 100 flights, too few to score | 93 flights, too few to score |
| 9 AM–10 AM | 79.5% on time268 flights | 78.5% on time269 flights | 78.9% on time265 flights | 78.7% on time267 flights | 78.5% on time268 flights | 76.4% on time267 flights | 78.1% on time269 flights |
| 10 AM–11 AM | 71 flights, too few to score | 72 flights, too few to score | 60 flights, too few to score | 69 flights, too few to score | 70 flights, too few to score | 47 flights, too few to score | 70 flights, too few to score |
| 11 AM–12 PM | 72.1% on time261 flights | 80.1% on time262 flights | 80.2% on time273 flights | 77.6% on time261 flights | 76.9% on time261 flights | 78.7% on time223 flights | 64.0% on time262 flights |
| 12 PM–1 PM | 70 flights, too few to score | 70 flights, too few to score | 65 flights, too few to score | 67 flights, too few to score | 69 flights, too few to score | 54 flights, too few to score | 79 flights, too few to score |
| 1 PM–2 PM | 75.1% on time179 flights | 78.6% on time178 flights | 77.2% on time186 flights | 68.0% on time183 flights | 75.1% on time183 flights | 73.9% on time179 flights | 70.9% on time170 flights |
| 2 PM–3 PM | 32 flights, too few to score | 35 flights, too few to score | 32 flights, too few to score | 34 flights, too few to score | 33 flights, too few to score | 40 flights, too few to score | 33 flights, too few to score |
| 3 PM–4 PM | 64.1% on time203 flights | 72.0% on time200 flights | 69.2% on time201 flights | 57.1% on time201 flights | 59.6% on time203 flights | 69.4% on time150 flights | 54.1% on time202 flights |
| 4 PM–5 PM | 56.5% on time150 flights | 72.3% on time155 flights | 53.7% on time148 flights | 57.1% on time150 flights | 60.1% on time148 flights | 65.6% on time128 flights | 59.2% on time150 flights |
| 5 PM–6 PM | 59.7% on time153 flights | 70.4% on time155 flights | 68.2% on time155 flights | 58.2% on time146 flights | 65.8% on time151 flights | 71.4% on time127 flights | 51.7% on time155 flights |
| 6 PM–7 PM | 62.6% on time183 flights | 71.3% on time182 flights | 61.8% on time181 flights | 59.1% on time184 flights | 65.2% on time185 flights | 74.6% on time186 flights | 54.0% on time186 flights |
| 7 PM–8 PM | 56.1% on time268 flights | 70.9% on time267 flights | 62.2% on time266 flights | 59.8% on time264 flights | 66.8% on time269 flights | 118 flights, too few to score | 52.2% on time268 flights |
By departure window
By departure hour
- 12 AM to 5 AM: too few flights to score
- 6 AM: 90.7% on time from 2,078 flights
- 7 AM: 86.1% on time from 1,835 flights
- 8 AM: 85.0% on time from 610 flights
- 9 AM: 78.4% on time from 1,873 flights
- 10 AM: 70.3% on time from 459 flights
- 11 AM: 75.6% on time from 1,803 flights
- 12 PM: 78.3% on time from 474 flights
- 1 PM: 74.1% on time from 1,258 flights
- 2 PM: 64.1% on time from 239 flights
- 3 PM: 63.4% on time from 1,360 flights
- 4 PM: 60.5% on time from 1,029 flights
- 5 PM: 63.5% on time from 1,042 flights
- 6 PM: 64.1% on time from 1,287 flights
- 7 PM: 62.8% on time from 1,720 flights
- 8 PM: 73.6% on time from 608 flights
- 9 PM: too few flights to score
- 10 PM: 61.3% on time from 149 flights
- 11 PM: too few flights to score
Why LGA → MIA runs late
July 2023 – July 2026
the inbound aircraft was late, so this flight started late
airspace and airport capacity, including weather-driven flow control
crew, maintenance, boarding and fueling, all within the carrier’s control
weather severe enough to stop this flight specifically
screening or terminal security incidents
Share of the delay minutes US DOT attributed to each cause for LGA → MIA. Only delays of 15 minutes or more are attributed.
Late-arriving aircraft is the largest cause on LGA → MIA, at 43.3%: flights here mostly leave late because the plane came in late, and the day shows it: 5–9 AM departures arrived on time 88.1% of the time and 3–6 PM departures 62.6%.
How this route holds up in bad weather
July 2023 – July 2026
Bad weather raises cancellations by a similar amount at both ends of LGA to MIA: 4.1 times the normal rate at LGA and 3.3 times at MIA. Cancelled in bad weather against normal hours: LGA 9.0% against 2.2%, MIA 4.5% against 1.3%. Flights that did leave MIA in bad weather arrived on time 50.6% of the time, against 74.1% in normal hours.
Bad weather and normal hours at the airports
Scheduled departures, July 2023 – July 2026| Departures from | LGA | MIA |
|---|---|---|
| Cancelled in bad weather | 9.0% | 4.5% |
| Cancelled in normal hours | 2.2% | 1.3% |
| Arrived on time, bad weather | 63.6% | 50.6% |
| Arrived on time, normal hours | 80.9% | 74.1% |
| Departures in bad weather | 56,339 | 15,746 |
Of the carriers on this route, Delta Air Lines (6.5% cancelled against 9.9% for the other carriers at LGA) cancelled the fewest departures from LGA in bad weather and Frontier Airlines (10.6% cancelled against 8.7% for the other carriers at LGA) the most.
This route’s airlines in bad weather at LGA
All departures from LGA| Airline | Bad-weather departures | Cancelled | Other carriers |
|---|---|---|---|
| Delta Air Lines | 10,841 | 6.5%below the others | 9.9% |
| American Airlines | 6,685 | 7.6%below the others | 9.3% |
| Spirit Airlines | 2,577 | 8.9%about level | 8.4% |
| Frontier Airlines | 864 | 10.6%above the others | 8.7% |
These are airport figures, not route figures: every scheduled departure from LGA and MIA, to any destination, in hours the weather report called bad. The airline rows count each carrier’s departures from LGA on every route.
Weather source and limits. In full: LGA (airlines), MIA, 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.
| Carrier | Flights | On time | Cancelled | Median delay | Severe |
|---|---|---|---|---|---|
| American Airlines | 10,393 | 75.1% | 2.78% | -8 min | 10.3% |
| Delta Air Lines | 5,636 | 72.5% | 2.34% | -7 min | 11.4% |
| Spirit Airlines | 1,436 | 73.7% | 2.92% | -12 min | 12.1% |
| Frontier Airlines | 400 | 67.2% | 4.50% | -5 min | 17.6% |
American Airlines flew 58.2% of the 17,865 flights listed. Frontier Airlines cancelled 4.50% of its flights here against 2.34% for Delta Air Lines.
American Airlines arrived on time 7.9 percentage points more often than Frontier Airlines on this route.
Other ways to fly New York to Miami
Airport pairs in the same two city markets, as the DOT defines them.
| Route | Flights | On time | Cancelled | Median delay | Score |
|---|---|---|---|---|---|
| LGA→MIA this route New York to Miami | 17,949 | 74.0% | 2.69% | -8 min | 46 |
| JFK→MIA New York to Miami | 15,837 | 75.0% | 2.10% | -7 min | 51 |
| EWR→FLL Newark to Fort Lauderdale | 15,393 | 75.3% | 2.81% | -8 min | 49 |
| LGA→FLL New York to Fort Lauderdale | 14,072 | 72.5% | 2.86% | -6 min | 43 |
| EWR→MIA Newark to Miami | 12,777 | 75.7% | 2.65% | -8 min | 51 |
| JFK→FLL New York to Fort Lauderdale | 11,955 | 72.5% | 2.76% | -6 min | 45 |
EWR → MIA is the most reliable pairing for this journey at 75.7% on time, against 72.5% for LGA → FLL.
Flying to MIA from the New York area? Compare LGA, EWR, JFK for MIA, with the same test for what counts as a real difference.
Flights on this route
Flight numbers with at least 600 operations here and still on the schedule.
AA1249 (6:00 AM) arrived on time 91.7% of the time, 29.3 points more often than DL2382 (7:15 PM) at 62.4%.
Weekly and seasonal patterns
By day of week
Tuesday is historically the most reliable day and Sunday the least, a gap of 10.9 percentage points.
By month
- Jan: 72.5%
- Feb: 77.4%
- Mar: 71.0%
- Apr: 80.6%
- May: 73.0%
- Jun: 70.8%
- Jul: 65.6%
- Aug: 71.9%
- Sep: 77.1%
- Oct: 79.5%
- Nov: 79.9%
- Dec: 71.4%
July is historically the weakest month and April the strongest, a spread of 15.0 percentage points.
Reliability over time
July 2023 – July 2026
- July 2023: 65.3% from 412 flights
- August 2023: 75.1% from 422 flights
- September 2023: 70.2% from 424 flights
- October 2023: 88.2% from 425 flights
- November 2023: 84.7% from 470 flights
- December 2023: 77.3% from 517 flights
- January 2024: 69.3% from 523 flights
- February 2024: 78.3% from 485 flights
- March 2024: 72.5% from 523 flights
- April 2024: 85.0% from 484 flights
- May 2024: 70.5% from 461 flights
- June 2024: 71.2% from 438 flights
- July 2024: 70.0% from 461 flights
- August 2024: 69.8% from 454 flights
- September 2024: 85.8% from 432 flights
- October 2024: 84.2% from 449 flights
- November 2024: 90.3% from 444 flights
- December 2024: 74.7% from 521 flights
- January 2025: 73.0% from 572 flights
- February 2025: 76.6% from 520 flights
- March 2025: 76.1% from 556 flights
- April 2025: 82.3% from 527 flights
- May 2025: 73.5% from 496 flights
- June 2025: 64.9% from 467 flights
- July 2025: 65.2% from 480 flights
- August 2025: 70.9% from 495 flights
- September 2025: 75.1% from 477 flights
- October 2025: 67.3% from 483 flights
- November 2025: 64.7% from 468 flights
- December 2025: 62.0% from 532 flights
- January 2026: 75.1% from 563 flights
- February 2026: 77.2% from 519 flights
- March 2026: 64.1% from 575 flights
- April 2026: 74.9% from 515 flights
- May 2026: 75.1% from 457 flights
- June 2026: 76.6% from 442 flights
- July 2026: 61.8% from 460 flights
Over the most recent 12 months (2025-08 to 2026-07), on-time arrivals averaged 70.3% against 76.2% in the 12 months before — declining by 5.9 percentage points.
Data and methodology
Calculated by FlyerIntel from 17,949 LGA → MIA 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
Related research: How Long a Layover Needs to Be · Two Airlines on One Route · Best Time of Day to Fly From Major US Airports
Analysis last recomputed