tailodds FORECAST
Tickets
Any day
Tuesday, October 6 · our forecast odds · issued Mon 4:00 AM ET · connections flying that day

Tomorrow looks like a normal day here: all 2 nonstops are 13–16% likely to arrive 15+ min late.

Nonstops that day

All 2 nonstops →
DL 1780 Delta Flight history → BOS 08:51 SJU 12:58 13% 3% 0.7% 78%
B6 861 JetBlue Flight history → BOS 08:02 SJU 12:14 16% 3% 0.7% 75%

Best connections that day, one ticket

Most reliable Quickest (80%+ on time)

Ranked by chance you reach San Juan 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.
DeltaDetails → BOS 05:30 → ATL 08:21DL 2242 1h 24m Atlanta ATL 09:45 → SJU 13:32DL 1882 8h 02m 100% 89%
DeltaDetails → BOS 06:45 → ATL 09:34DL 695 3h 26m Atlanta ATL 13:00 → SJU 16:39DL 1946 9h 54m 99% 87%
AmericanDetails → BOS 05:10 → MIA 08:38AA 1418 3h 01m Miami MIA 11:39 → SJU 14:24AA 1613 9h 14m 100% 87%
DeltaDetails → BOS 12:30 → ATL 15:21DL 2779 3h 24m Atlanta ATL 18:45 → SJU 22:30DL 1861 10h 00m 100% 86%
AmericanDetails → BOS 06:02 → PHL 07:48AA 1540 1h 45m Philadelphia PHL 09:33 → SJU 13:41AA 614 7h 39m 98% 86%
AmericanDetails → BOS 06:05 → CLT 08:30AA 418 2h 33m Charlotte CLT 11:03 → SJU 14:50AA 783 8h 45m 99% 85%
JetBlueDetails → BOS 07:16 → JFK 08:38B6 917 3h 47m New York JFK 12:25 → SJU 16:22B6 1603 9h 06m 100% 84%
JetBlueDetails → BOS 05:10 → FLL 08:30B6 569 3h 15m Fort Lauderdale FLL 11:45 → SJU 14:33B6 1553 9h 23m 100% 84%
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 Tue, Oct 6 (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