75% of flights from Newark to Miami arrived on time over the past 12 months. That is worse than the typical U.S. route. The 5 a.m. departures ran on time 88% of the time; the 4 p.m. ones 56%. Most reliable airline: American Airlines (78%). 12% of flights arrived more than an hour late or not at all.
How late?
The on-time rate treats a flight 20 minutes late the same as one 5 hours late. Here's the split for EWR → MIA: when a flight was late, it was under 45 minutes late 51% of the time. About 1 in 12 flights landed an hour or more late, and 1 in 52 three hours or more; 3.0% were cancelled outright.
- On time or early75%
- 15–30 min late7.1%
- 30–60 min late6.3%
- 1–2 hours late4.5%
- 2–3 hours late1.9%
- 3+ hours late1.9%
- Diverted0.3%
- Cancelled3.0%
Share of all 3,914 scheduled flights, past 12 months, by arrival time against schedule.
By airline
| Airline | Flights | On time | Cancelled | Typical arrival | 1h+ late | Avg when late | Operated by |
|---|---|---|---|---|---|---|---|
| United Airlines | 2,238 | 75% | 2.5% | −8 min | 8.0% | +72 min | United Airlines |
| American Airlines | 1,429 | 78% | 3.3% | −13 min | 7.1% | +102 min | American Airlines |
| Spirit Airlines | 247 | 56% | 5.3% | +4 min | 18.2% | +76 min | Spirit Airlines |
Airline = the name on the ticket. Regional flights (e.g. "Delta Connection") count under the ticketing airline, and the operator is listed.
Best time of day to fly
On-time rate by scheduled departure hour (local time at EWR). Delays build through the day as late planes knock on, so early flights usually do best.
By airline and hour
| Departs | United Airlines | American Airlines |
|---|---|---|
| 5 a.m. | — | 88% |
| 6 a.m. | 90% | — |
| 7 a.m. | 88% | 81% |
| 8 a.m. | — | 86% |
| 9 a.m. | 74% | — |
| 11 a.m. | 79% | — |
| noon | — | 75% |
| 1 p.m. | 72% | — |
| 2 p.m. | 62% | — |
| 3 p.m. | 70% | — |
| 4 p.m. | 66% | — |
| 5 p.m. | 79% | — |
| 6 p.m. | — | 64% |
| 7 p.m. | 71% | — |
| 8 p.m. | 63% | — |
Last flight of the day
On EWR → MIA, each airline's last flight of the day was cancelled 4.1% of the time, against 2.6% for its earlier flights (1.6× as often). It arrived 3+ hours late 3.8% of the time (earlier flights: 1.4%). It matters more than the numbers suggest. Miss an earlier flight and there's another one that evening; miss the last one and you're usually waiting until morning.
| Airline | Last departure | Last: cancelled | Last: 3h+ late | Earlier: cancelled | Next morning |
|---|---|---|---|---|---|
| American Airlines | 6:30 p.m. | 4.7% | 4.4% | 2.8% | first flight 5:31 a.m. |
| United Airlines | 8:04 p.m. | 3.0% | 3.3% | 2.4% | first flight 7:00 a.m. |
Last flight = the airline's last scheduled departure on this route that day, on days it flies the route at least twice; past 12 months. Times are typical scheduled times over the latest three months.
If you need to be in MIA tonight, book an earlier flight so there's a backup if it's cancelled.
By month
Each calendar month pooled over 2023–2026. Best: October (83%). Worst: July (62%).
By day of week
| Day | Flights | On time | Cancelled |
|---|---|---|---|
| Monday | 575 | 73% | 5.4% |
| Tuesday | 545 | 82% | 2.8% |
| Wednesday | 538 | 80% | 0.9% |
| Thursday | 573 | 75% | 1.4% |
| Friday | 577 | 76% | 1.2% |
| Saturday | 526 | 75% | 3.2% |
| Sunday | 580 | 65% | 5.7% |
Why flights were late
Share of delay minutes on flights 15+ minutes late, as reported to BTS by the airlines.
Cancellations: weather 89 · air traffic/airport 22 · airline 5
Month by month
Flight numbers on this route
Regular flights with at least 120 scheduled trips in the past year. Sorted by departure time.
| Flight | Departs | Flights | On time | Cancelled | Typical arrival | Operated by |
|---|---|---|---|---|---|---|
| AA 1196 | 5:40 a.m. | 365 | 89% | 4.1% | −22 min | American Airlines |
| AA 1152 | 8:00 a.m. | 138 | 88% | 1.5% | −16 min | American Airlines |
| UA 2295 | 11:31 a.m. | 346 | 78% | 2.9% | −10 min | United Airlines |
| UA 1511 | 1:00 p.m. | 307 | 67% | 2.9% | −1 min | United Airlines |
| UA 1128 | 6:59 p.m. | 207 | 69% | 4.3% | −6 min | United Airlines |
Worst days in the past year
| Date | Flights | On time | Cancelled |
|---|---|---|---|
| Feb 23, 2026 | 12 | 0% | 12 |
| Dec 14, 2025 | 12 | 0% | 2 |
| Nov 10, 2025 | 11 | 0% | 2 |
| Dec 27, 2025 | 14 | 7% | 5 |
| Jan 25, 2026 | 13 | 8% | 11 |
Nearby airport alternatives
Other ways to make the same trip, using airports within 60 miles of Newark or Miami. None has been clearly more reliable than EWR → MIA.
| Route | Flights | On time | Cancelled |
|---|---|---|---|
| EWR → MIA (this route) | 3,914 | 75% | 3.0% |
| JFK → MIA New York JFK to Miami | 4,526 | 74% | 3.1% |
| EWR → FLL Newark to Fort Lauderdale | 4,671 | 72% | 4.0% |
| HPN → FLL Westchester to Fort Lauderdale | 880 | 69% | 2.5% |
| JFK → FLL New York JFK to Fort Lauderdale | 3,907 | 68% | 4.8% |
| ISP → FLL Long Island MacArthur to Fort Lauderdale | 418 | 67% | 1.9% |
| LGA → MIA LaGuardia to Miami | 5,951 | 67% | 4.3% |
Questions
How often are flights from EWR to MIA on time?
75% of 3,914 scheduled flights from Newark, NJ to Miami, FL arrived within 15 minutes of schedule between September 2025 and August 2026. 3.0% were cancelled.
What is the best time of day to fly EWR to MIA?
Flights scheduled to leave at 5 a.m. were the most reliable (88% on time). The 4 p.m. departures were the least (56%).
Which airline is most on time from EWR to MIA?
American Airlines: 78% of its 1,429 flights on the route arrived on time. United Airlines: 75%. Spirit Airlines: 56%.
What month has the most delays from EWR to MIA?
July (62% on time). The best month is October (83%), over 2023–2026.
Is the last flight of the day from EWR to MIA more likely to be cancelled?
Yes. Each airline's last EWR–MIA flight of the day was cancelled 4.1% of the time over the past year, against 2.6% for its earlier flights. If the last flight is cancelled, the next one is usually the following morning.
Related
- MIA → EWR (return)
- Newark (EWR) delays by hour
- Flights into Miami (MIA)
- United Airlines on-time record
- American Airlines on-time record
- Spirit Airlines on-time record
- Connecting off this flight? Check the risk
Domestic flights by the airlines that report to the U.S. DOT, plus their regional partners. "On time" means arriving less than 15 minutes after schedule; cancelled and diverted flights count as not on time. Past performance is a guide, not a forecast. Method.