69% of flights from New York to Milwaukee arrived on time over the past 12 months. That is worse than the typical U.S. route. 19% 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 JFK → MKE: when a flight was late, it was under 45 minutes late 34% of the time. About 1 in 7 flights landed an hour or more late, and 1 in 33 three hours or more; 5.2% were cancelled outright.
- On time or early69%
- 15–30 min late6.0%
- 30–60 min late5.5%
- 1–2 hours late8.5%
- 2–3 hours late2.2%
- 3+ hours late3.0%
- Diverted0.5%
- Cancelled5.2%
Share of all 365 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 |
|---|---|---|---|---|---|---|---|
| Delta Air Lines | 365 | 69% | 5.2% | −9 min | 13.7% | +91 min | Endeavor Air |
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 JFK). Delays build through the day as late planes knock on, so early flights usually do best.
By month
Each calendar month pooled over 2023–2026. Best: November (89%). Worst: June (58%).
By day of week
| Day | Flights | On time | Cancelled |
|---|---|---|---|
| Monday | 53 | — | — |
| Tuesday | 52 | — | — |
| Wednesday | 52 | — | — |
| Thursday | 52 | — | — |
| Friday | 52 | — | — |
| Saturday | 52 | — | — |
| Sunday | 52 | — | — |
Why flights were late
Share of delay minutes on flights 15+ minutes late, as reported to BTS by the airlines.
Cancellations: air traffic/airport 10 · weather 5 · airline 4
Month by month
Not enough months with data to draw a trend.
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 |
|---|---|---|---|---|---|---|
| DL 4986 | 5:30 p.m. | 141 | 63% | 6.4% | −6 min | Endeavor Air |
Nearby airport alternatives
Other ways to make the same trip, using airports within 60 miles of New York or Milwaukee. EWR → MKE has been 9 points more reliable.
| Route | Flights | On time | Cancelled |
|---|---|---|---|
| JFK → MKE (this route) | 365 | 69% | 5.2% |
| EWR → MKE Newark to General Mitchell | 852 | 78% | 6.5% |
| LGA → MKE LaGuardia to General Mitchell | 1,326 | 74% | 6.0% |
Questions
How often are flights from JFK to MKE on time?
69% of 365 scheduled flights from New York, NY to Milwaukee, WI arrived within 15 minutes of schedule between September 2025 and August 2026. 5.2% were cancelled.
What month has the most delays from JFK to MKE?
June (58% on time). The best month is November (89%), over 2023–2026.
Related
- MKE → JFK (return)
- New York JFK (JFK) delays by hour
- Flights into General Mitchell (MKE)
- Delta Air Lines 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.