Tickets
Any day
Wednesday, October 7 · typical odds for a Wednesday (too early for a weather forecast) · issued Sat 12:00 PM ET · connections flying that day

Wed, Oct 7: Delta via Salt Lake City, leaving 06:00, is the safest bet: 82% chance of reaching New York on time.

Nonstops that day

All 1 nonstop →
B6 454 JetBlue Flight history → ONT 23:51 JFK 08:13 19% 4% 1.2% 72%

Best connections that day, one ticket

Ranked by chance you reach New York on time, from each leg’s forecast for the day. Total trip = scheduled departure to arrival (New York is 3 h ahead of Ontario). Layovers up to 4 hours. Pick a connection for its 12-month details.

DeltaDetails → ONT 11:48 → ATL 19:15DL 665 3h 24m Atlanta ATL 22:39 → JFK 00:55 +1DL 1632 10h 07m 99% 84%
DeltaDetails → ONT 18:01 → SEA 20:50DL 4031 · flown by SkyWest 1h 50m Seattle SEA 22:40 → JFK 06:50 +1DL 452 9h 49m 98% 84%
DeltaDetails → ONT 06:00 → SLC 08:48DL 2708 1h 11m Salt Lake City SLC 09:59 → JFK 16:47DL 1792 7h 47m 97% 82%
DeltaDetails → ONT 11:59 → SEA 14:51DL 4070 · flown by SkyWest 1h 13m Seattle SEA 16:04 → JFK 00:11 +1DL 1044 9h 12m 96% 82%
DeltaDetails → ONT 06:20 → SEA 09:15DL 3816 · flown by SkyWest 2h 19m Seattle SEA 11:34 → JFK 20:15DL 415 10h 55m 98% 76%
AmericanDetails → ONT 12:57 → PHX 14:24AA 2661 1h 27m Phoenix PHX 15:51 → JFK 23:58AA 832 8h 01m 93% 74%
AmericanDetails → ONT 08:26 → DFW 13:41AA 2893 3h 58m Dallas-Fort Worth DFW 17:39 → JFK 22:22AA 1248 10h 56m 97% 74%
AmericanDetails → ONT 06:11 → PHX 07:30AA 1194 2h 28m Phoenix PHX 09:58 → JFK 18:06AA 2339 8h 55m 96% 74%
How these are worked out. Each flight’s odds are our forecast for that day (typical odds until the weather forecast covers it); flights of airlines we don’t forecast yet use their 12-month record and are marked. Makes the connection: the first flight’s 12-month lateness curve, scaled so its chance of arriving 15+ min late matches the day’s forecast, at the layover minus the 45-minute minimum (90 on separate tickets). Arrives on time: first flight not cancelled × connection made × second flight not cancelled × second flight within 15 minutes, each from the day’s forecast.

About this data: forecast odds from our model for Wed, Oct 7 (newest published update); 12-month records from US DOT on-time data, Aug 2025 – Jul 2026, all US airlines; regional flights count under the airline that sells them. JSON