Reliable (on-time) Flight Finder
US domestic flights only at this time
Best trips
1 nonstop · ranked by overall best
Most reliable time: afternoon departures (2–6 PM), the window with the best on-time odds for this trip. Turn off “Most reliable” under Departure time in Advanced settings to see every time.
Our best overall pick
73% chance you arrive on time · nonstop · 30 in legroom · planes about 27 years old · 3h 13m
Top pick#1 · Nonstop · 3h 13m
2:35 PM → 5:48 PM
73%
arrive on time
75% on time · 2.1% cancel2:35 PM EYW → 5:48 PM EWR3h 13m
United 1513
Boeing 737-700 · 27–28 yrs oldLegroom 30 in · 16.1–17.1 in wide · United EconomyWhy this is our top pick
- It's the only trip in our data that fits your search, with a 73% chance of arriving on time.
Find United 1513 fares Opens this date on Aviasales
Aircraft and legroom reflect the planes each flight has flown recently. Airlines can swap planes and seat maps change, so check the airline’s seat map when you book.
EYW → EWR
Key West to Newark: 460 nonstop flights a year
On time (12 months)
70%
Cancelled
2.4%
avg delay 29 min
Best time to leave
Noon to 3 PM
76% on time vs 63% 3 to 6 PM
Most reliable airline
United
72% chance on time
Fares open on our travel partner (Aviasales). Pick the flight number you chose here.
Airlines on this route
Season-adjusted chance of operating and arriving on time.
- United Airlines72%
299 flights · 74% on time as flown · 2.1% cancel
On time by departure time
All airlines, scheduled local departure, Jun 2025 to May 2026.
- Noon to 3 PM76%
256 flights · avg delay 32 min
- 3 to 6 PM63%
204 flights · avg delay 26 min
Best day: Tuesday (84%). Worst: Saturday (69%).
Historical odds, not a guarantee. Built from the US DOT Bureau of Transportation Statistics on-time reports (Jun 2025 to May 2026), FAA ground stop and delay program advisories, and 20 years of airport weather observations. Covers US airlines that report to the DOT; schedules are flights operated recently, so confirm times when you book. ATIS Alerts is not affiliated with any airline. Fares are what Aviasales travelers saw in recent searches (USD, one way, 1 adult), not live quotes; the partner site shows the current price. Fare links go to our travel partner and may earn us a commission at no cost to you. Affiliate disclosure