Friday, October 9 · typical odds for a Friday (too early for a weather forecast) · issued Mon 12:00 PM ET · connections flying that day

Fri, Oct 9: Delta via Atlanta, leaving 10:15, is the safest bet: 76% chance of reaching Valparaiso on time.

Nonstops that day

All 1 nonstop →


B6 1781 JetBlue Flight history →	BOS 12:44	VPS 15:06	18%	6%	0.7%	80%

Best connections that day, one ticket

Most reliable Quickest (80%+ on time)

Ranked by chance you reach Valparaiso on time, from each leg’s forecast for the day. Total trip = scheduled departure to arrival (Valparaiso is 1 h behind Boston). Layovers up to 4 hours. Pick a connection for its 12-month details.


Delta Details →	BOS 05:30 → ATL 08:21DL 2242	1h 54m Atlanta	ATL 10:15 → VPS 10:29DL 2048	5h 59m	100%	92%
Delta Details →	BOS 05:55 → MSP 08:04DL 2303	2h 31m Minneapolis	MSP 10:35 → VPS 13:13DL 2462	8h 18m	99%	90%
Delta Details →	BOS 06:45 → ATL 09:34DL 695	2h 46m Atlanta	ATL 12:20 → VPS 12:29DL 3092	6h 44m	99%	89%
Delta Details →	BOS 08:00 → ATL 10:51DL 923	2h 59m Atlanta	ATL 13:50 → VPS 14:00DL 2832	7h 00m	99%	87%
Delta Details →	BOS 12:30 → ATL 15:21DL 2779	3h 07m Atlanta	ATL 18:28 → VPS 18:42DL 2803	7h 12m	100%	86%
American Details →	BOS 05:10 → ORD 07:04AA 3324	1h 25m Chicago	ORD 08:29 → VPS 11:01AA 4153 · flown by Envoy	6h 51m	98%	85%
JetBlue Details →	BOS 05:01 → JFK 06:14B6 917	55m New York	JFK 07:09 → VPS 09:09B6 2011	5h 08m	95%	85%
Delta Details →	BOS 16:30 → ATL 19:38DL 399	3h 37m Atlanta	ATL 23:15 → VPS 23:29DL 3097	7h 59m	99%	85%

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 Fri, Oct 9 (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