ON TIMEBOARD
EWR Newark / EYW Key West

EWR → EYW on time

Newark (Newark, NJ) to Key West (Key West, FL). Every scheduled flight, September 2025 to August 2026.

On time
81%
arrived < 15 min late
Cancelled
2.0%
460 flights
Typical arrival
−11 min
median vs schedule
When late
+70 min
average delay
Flights / day
1
1 airline

81% of flights from Newark to Key West arrived on time over the past 12 months. That is about the typical U.S. route. 8% 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 → EYW: when a flight was late, it was under 45 minutes late 57% of the time. About 1 in 17 flights landed an hour or more late, and 1 in 66 three hours or more; 2.0% were cancelled outright.

Share of all 460 scheduled flights, past 12 months, by arrival time against schedule.

By airline

AirlineFlightsOn timeCancelledTypical arrival1h+ lateAvg when lateOperated by
United Airlines46081%2.0%−11 min5.9%+70 minUnited Airlines 65%, Republic Airways 35%

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.

40%70%100%9 a.m. departures: too few flights (82 flights)9a10 a.m. departures: 80% on time (243 flights)8010a11 a.m. departures: too few flights (39 flights)11anoon departures: too few flights12p1 p.m. departures: too few flights (50 flights)1p2 p.m. departures: too few flights (45 flights)2p
EWR → EYW, share of flights arriving on time, by departure hour. Hours with under 100 flights are greyed out.
82%+ on time76–82%68–76%under 68%too few flights

By month

Each calendar month pooled over 2023–2026. Best: November (85%). Worst: December (72%).

40%70%100%Jan: 73% on time (128 flights)73JanFeb: 79% on time (131 flights)79FebMar: 76% on time (155 flights)76MarApr: 83% on time (149 flights)83AprMay: 76% on time (115 flights)76MayJun: too few flights (90 flights)JunJul: too few flights (93 flights)JulAug: too few flights (93 flights)AugSep: too few flights (90 flights)SepOct: too few flights (96 flights)OctNov: 85% on time (118 flights)85NovDec: 72% on time (135 flights)72Dec

By day of week

DayFlightsOn timeCancelled
Monday67——
Tuesday65——
Wednesday64——
Thursday66——
Friday66——
Saturday66——
Sunday66——

Why flights were late

Share of delay minutes on flights 15+ minutes late, as reported to BTS by the airlines.

Air traffic & airport (NAS) 48%Late inbound plane 35%Airline (crew, maintenance, ops) 17%

Cancellations: weather 9

Month by month

Not enough months with data to draw a trend.

Questions

How often are flights from EWR to EYW on time?

81% of 460 scheduled flights from Newark, NJ to Key West, FL arrived within 15 minutes of schedule between September 2025 and August 2026. 2.0% were cancelled.

What month has the most delays from EWR to EYW?

December (72% on time). The best month is November (85%), over 2023–2026.

Related

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.