tailodds FORECAST
Tickets
Any day
Wednesday, October 7 · our forecast odds · issued Mon 5:00 AM ET · connections flying that day

Wed, Oct 7 looks like a normal day here: all 2 nonstops are 17–26% likely to arrive 15+ min late.

Nonstops that day

All 2 nonstops →
DL 1780 Delta Flight history → SJU 14:08 BOS 18:19 17% 5% 0.7% 80%
B6 462 JetBlue Flight history → SJU 20:07 BOS 00:13 26% 12% 0.8% 58%

Best connections that day, one ticket

Most reliable Quickest (80%+ on time)

Ranked by chance you reach Boston on time, from each leg’s forecast for the day. Total trip = scheduled departure to arrival. Layovers up to 4 hours. Pick a connection for its 12-month details.
UnitedDetails → SJU 01:00 → EWR 05:10UA 2219 3h 25m Newark EWR 08:35 → BOS 09:51UA 1110 8h 51m 98% 91%
DeltaDetails → SJU 14:42 → ATL 18:36DL 1882 2h 14m Atlanta ATL 20:50 → BOS 23:36DL 300 8h 54m 98% 89%
DeltaDetails → SJU 07:35 → JFK 11:30DL 1854 3h 00m New York JFK 14:30 → BOS 16:08DL 5595 · flown by Republic 8h 33m 99% 89%
DeltaDetails → SJU 07:30 → ATL 11:14DL 1763 2h 45m Atlanta ATL 13:59 → BOS 16:45DL 726 9h 15m 99% 89%
UnitedDetails → SJU 07:00 → IAH 10:53UA 1644 1h 36m Houston IAH 12:29 → BOS 17:38UA 1226 10h 38m 98% 84%
JetBlueDetails → SJU 05:57 → MCO 09:13B6 234 1h 24m Orlando MCO 10:37 → BOS 13:43B6 552 7h 46m 96% 83%
UnitedDetails → SJU 16:55 → IAD 20:56UA 2024 1h 14m Dulles IAD 22:10 → BOS 23:59UA 755 7h 04m 93% 82%
UnitedDetails → SJU 15:56 → ORD 20:15UA 2088 1h 26m Chicago ORD 21:41 → BOS 01:14 +1UA 1779 9h 18m 95% 81%
How these are worked out. Each flight’s odds are our forecast for that day; 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