Carrier route record
AAMIA→EWR
American Airlines · Miami to Newark
- Flights
- 1,424
- Period
- July 2025 to June 2026
- Share of route
- 36%
- Carriers
- 4
Historical statistics for July 2025 to June 2026, not live status. For today’s flights, check with American Airlines.
American on MIA to EWR sits in the middle of the pack with a C−. About seven flights in ten arrive on time by the DOT's definition, 9 points worse than the national rate of 77.6%. The late ones land a little over an hour behind schedule. That rests on 1,424 flights, with a median arrival 1 minute early.
The national on-time rate over the same period is 77.6%, so American on MIA to EWR runs 9 points behind the country as a whole. Across a thousand flights that is about 91 extra late arrivals.
Key figures
On time
68.5%
Arrivals under 15 minutes late, of 1,375 completed flights
Avg delay
73 min
Across delayed arrivals only, not all flights
Cancelled
3.02%
National rate is 1.81%
Whole route
71.8%
Every carrier on MIA to EWR, 3,985 flights
These figures cover 1,424 flights between July 2025 and June 2026. Beyond the headline rate, 13.5% of arrivals land a full hour or more behind schedule. That is the number that wrecks a connection, and it is not visible in an on-time percentage alone.
Carrier by carrier
American against every carrier on MIA to EWR
American flew 1,424 of the 3,985 flights on MIA to EWR, about 36% of it. Its 68.5% on time is 3 points worse than the route as a whole, which runs 71.8%. Ranked by on-time rate it is number three of four carriers on the route, where the range runs from Envoy at 100.0% to Spirit at 63.9%. Two 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 |
|---|---|---|---|---|---|
| Envoy Airthin sample | 1 | 100.0% | — | 0.00% | A+ |
| United Airlines | 2,253 | 74.9% | 88 min | 2.04% | C |
| American Airlines (this page) | 1,424 | 68.5% | 73 min | 3.02% | C− |
| Spirit Airlinesthin sample | 307 | 63.9% | 91 min | 5.86% | D− |
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 31 points, against half a point between the best and worst carrier. Each bar is the on-time rate for flights scheduled inside that window.
- 5am–8am—
- 8am–11am362 flights87.2%
- 11am–2pm41 flights90.0%
- 2pm–5pm318 flights60.7%
- 5pm–8pm314 flights58.6%
- 8pm–5am389 flights62.6%
Scale runs 50% to 95%. Rows with fewer than 30 flights show a dash.
The 5pm–8pm window is where this operation falls apart: 58.6% on time, against 90.0% for the 11am–2pm 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 8pm–5am window is the busiest, with 389 flights scheduled in it.
Across the year
American on MIA to EWR through the year
July is the worst month at 54.5% on time, 26 points below January, the best at 80.5%. 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, Wednesday is the strongest day at 74.1% on time and Sunday the weakest at 60.4%. 14 points is a smaller lever than departure hour, but it is free.
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 32,000 reported delay minutes.
- 40%Late-arriving aircraft
- 28%Carrier
- 27%National Airspace System
- 5%Extreme weather
- 0%Security
40% 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 32,000 reported delay minutes here, that single category outweighs weather by 9 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 31,735 reported delay minutes.
Cancellations run at 3.02%, against 1.81% nationally. That is roughly 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
For anyone connecting, the number to weigh is not the on-time rate but the tail behind it. 13.5% of arrivals land a full hour or more behind schedule, against 8.1% 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.
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. It is also long enough that the aircraft usually flies three or four legs a day rather than six, which slows how fast delay compounds.
The return leg is a different operation and performs like one: it runs 80.5% on time across 1,425 flights, 12 points above 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 12 points of difference.
The sample behind these figures is 1,424 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 MIA to EWR
Put together: the delay figures matter less here than the 3.02% cancellation rate. A late arrival costs you a little over an hour; a cancelled flight costs you the day. Book the 11am–2pm departure so there is still a schedule behind you if it goes wrong, and treat a same-day connection as optimistic. 1,375 completed flights over 12 months sit behind that.
Related
Where to go next
- MIA to EWR, every carrier
- American on EWR to MIA, the return leg
- United Airlines on MIA to EWR74.9%
- Spirit Airlines on MIA to EWR63.9%
- American Airlines network-wide record
- Miami International (MIA) delay statistics
- Newark Liberty International (EWR) 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, July 2025 to June 2026. Last updated 15 September 2026; recomputed monthly. How this data is collected.