Tickets
Any day
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: Southwest via Nashville, leaving 07:55, is the safest bet: 84% chance of reaching Boston on time.

Nonstops that day

All 1 nonstop →
B6 1782 JetBlue Flight history → VPS 15:59 BOS 20:18 27% 13% 0.9% 56%

Best connections that day, one ticket

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

DeltaDetails → VPS 06:00 → ATL 08:15DL 3085 1h 50m Atlanta ATL 10:05 → BOS 12:45DL 855 5h 45m 97% 87%
DeltaDetails → VPS 07:00 → ATL 09:18DL 2451 1h 52m Atlanta ATL 11:10 → BOS 13:47DL 862 5h 47m 98% 86%
SouthwestDetails → VPS 07:55 → BNA 09:25WN 4062 50m Nashville BNA 10:15 → BOS 13:40WN 4560 4h 45m 100% 84%
DeltaDetails → VPS 17:06 → ATL 19:30DL 3083 3h 10m Atlanta ATL 22:40 → BOS 01:20 +1DL 865 7h 14m 99% 82%
DeltaDetails → VPS 09:21 → ATL 11:34DL 3051 2h 24m Atlanta ATL 13:58 → BOS 16:44DL 726 6h 23m 97% 79%
DeltaDetails → VPS 14:18 → MSP 17:12DL 2462 2h 57m Minneapolis MSP 20:09 → BOS 23:55DL 2614 8h 37m 100% 78%
AmericanDetails → VPS 07:14 → CLT 10:09AA 5661 · flown by PSA 1h 09m Charlotte CLT 11:18 → BOS 13:33AA 1611 5h 19m 90% 78%
DeltaDetails → VPS 13:28 → ATL 15:45DL 3092 3h 55m Atlanta ATL 19:40 → BOS 22:25DL 300 7h 57m 98% 77%
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