Carrier route record
AAEWR→MIA
American Airlines · Newark to Miami
- Flights
- 1,429
- Period
- September 2025 to August 2026
- Share of route
- 37%
- Carriers
- 3
Historical statistics for September 2025 to August 2026, not live status. For today’s flights, check with American Airlines.
American on EWR to MIA carries a cancellation problem, not just a delay problem: 3.3% of scheduled flights never operate, against 1.9% nationally. Of the ones that do fly, about four flights in five 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 1,429 flights, with a median arrival 13 minutes early.
Set against the rest of the country, American's EWR to MIA record is 4 points better than the US average of 77.3%. That gap is worth roughly 40 fewer late arrivals for every thousand flights.
Key figures
On time
81.3%
Arrivals under 15 minutes late, of 1,374 completed flights
Avg delay
102 min
Across delayed arrivals only, not all flights
Cancelled
3.29%
National rate is 1.89%
Whole route
77.5%
Every carrier on EWR to MIA, 3,914 flights
These figures cover 1,429 flights between September 2025 and August 2026. The median arrival is 13 minutes early, which is the part an average hides: most flights here are fine, and the on-time rate is decided by a tail of badly late ones. On-time means under 15 minutes late, the DOT's own threshold.
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Carrier by carrier
American against every carrier on EWR to MIA
American flew 1,429 of the 3,914 flights on EWR to MIA, about 37% of it. Its 81.3% on time is 4 points better than the route as a whole, which runs 77.5%. Ranked by on-time rate it is first of three carriers on the route, where the range runs from American at 81.3% to Spirit at 59.2%. One of those carriers flew fewer than 365 flights here, so treat their positions as rough.
Only one carrier clears this site's 365-flight floor here, so there is no comparison to draw. The table below is the full picture.
| Airline | Flights | On time | Avg delay | Cancelled | Grade |
|---|---|---|---|---|---|
| American Airlines (this page) | 1,429 | 81.3% | 102 min | 3.29% | B− |
| United Airlines | 2,238 | 77.1% | 72 min | 2.50% | B |
| Spirit Airlinesthin sample | 247 | 59.2% | 76 min | 5.26% | D− |
Flight by flight
American flight numbers on EWR to MIA
Timetable by Aviasales, a Travelpayouts partner. Booking through it may earn this site a commission at no cost to you; it changes no figure here.
Departure window
When American runs best on this route
Departure time matters more here than the choice of carrier. The gap between the best and worst window is 24 points, against half a point between the best and worst carrier.
- 5am–8am582 flights91.0%
- 8am–11am147 flights87.5%
- 11am–2pm363 flights76.6%
- 2pm–5pm—
- 5pm–8pm337 flights66.9%
- 8pm–5am—
Scale runs 60% to 95%. Rows with fewer than 30 flights show a dash.
Book the early departure. Flights leaving between 5am–8am arrive on time 91.0% of the time, against 66.9% for the evening window. That is 24 points of difference for no extra money, and it comes from the same aircraft having had no earlier flight to fall behind on. The 5am–8am window is the busiest, with 582 flights scheduled in it.
Across the year
American on EWR to MIA through the year
July is the worst month at 74.3% on time, 13 points below June, the best at 87.5%. Summer afternoon convection and peak-season schedules land on the same weeks every year, so this is a pattern you can book around rather than a run of bad luck. January was the busiest month here, with 124 flights.
Across the week, Tuesday is the strongest day at 86.0% on time and Sunday the weakest at 74.4%, a spread of 12 points.
Arrival by arrival
How late American on EWR to MIA runs when it is late
American on EWR to MIA often beats the schedule: 645 of 1,374 completed flights, 47%, arrived 15 minutes or more early. The 257 late arrivals split 77 under half an hour, 75 between 30 and 60 minutes, and 105 an hour or more.
- 15+ min early645 flights46.9%
- Within 15 min472 flights34.4%
- 15–29 min late77 flights5.6%
- 30–59 min late75 flights5.5%
- 1–2 hours late52 flights3.8%
- 2+ hours late53 flights3.9%
Scale runs 0% to 100%.
Share of 1,374 completed flights by arrival against schedule.
66 of 257 late departures made up the time and arrived on time, 26% of them. 66 flights left on time and still arrived late.
The worst days
Worst days for American on EWR to MIA
The latest arrival of the period was on 6 July 2026, 17 hours 14 minutes behind schedule; most of its delay minutes were filed as extreme weather. Four of the five worst days fell in August 2026.
| Date | Arrived late by | Largest filed cause |
|---|---|---|
| 6 July 2026 | 17 hours 14 minutes | Extreme weather |
| 7 August 2026 | 16 hours 16 minutes | National Airspace System |
| 5 August 2026 | 15 hours 15 minutes | Carrier |
| 6 August 2026 | 14 hours 29 minutes | Late-arriving aircraft |
| 17 August 2026 | 13 hours 38 minutes | Extreme weather |
Delay causes
Why American runs late on this route
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 26,000 reported delay minutes.
- 40%Late-arriving aircraft
- 25%Carrier
- 20%National Airspace System
- 16%Extreme weather
- 0%Security
Extreme weather accounts for 16% of delay minutes, well above the single-digit share typical across the system. Weather delays are lumpy: they arrive as whole bad days rather than as a steady drag, so the monthly strip above is the more useful view of the risk. The national share is 6%, so this operation carries roughly 2.6 times the usual weather exposure. The split is drawn from 26,074 reported delay minutes.
40% of delay minutes trace back to a late-arriving aircraft, meaning the plane was already behind before it got here. Across 26,000 reported delay minutes here, that single category outweighs weather by 3 to one.
Cancellations run at 3.29%, against 1.89% nationally. That is about one flight in 30 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.
Connections and stage length
What a delay here costs
7.6% of arrivals land an hour or more late, close to the national 8.3%, so a 60 to 75 minute layover is reasonable here while anything under 45 minutes is a bet. Most delays on this route last close to two hours, which a normal layover absorbs.
The 1,085 miles between these two airports put this in the middle of the US network, around two and a half to three hours of block time. That is enough cruise to absorb a ten-minute late pushback and not enough to absorb thirty.
The return leg is a different operation and performs like one: it runs 68.4% on time across 1,428 flights, 13 points below this direction. Departure banks, aircraft rotations and the congestion at each end all differ, so scoring the two directions together would average away a real 13 points of difference.
The sample behind these figures is 1,429 flights, enough that the headline rate is stable to within roughly a point. The hour-block and month splits divide that further, so read the thinner bars with more caution than the headline.
What to do with this
Booking American on EWR to MIA
Put together: the delay figures matter less here than the 3.29% cancellation rate. A late arrival costs you close to two hours; 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. 1,374 completed flights over 12 months sit behind that.
Related
Where to go next
- EWR to MIA, every carrier
- American on MIA to EWR, the return leg
- United Airlines on EWR to MIA77.1%
- Spirit Airlines on EWR to MIA59.2%
- American Airlines network-wide record
- Newark Liberty International (EWR) delay statistics
- Miami International (MIA) delay statistics
- The US routes with the most cancellations
- Why the first flight of the morning is statistically safest
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.