tailodds FORECAST
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Any day
Tuesday, October 6 · our forecast odds · issued Mon 11:00 AM ET · connections flying that day

Tomorrow: Delta via Atlanta, leaving 07:30, is the safest bet: 89% chance of reaching Denver on time.

Nonstops that day

All 1 nonstop →
UA 1368 United Flight history → SJU 13:40 DEN 18:15 8% 2% 0.6% 87%

Best connections that day, one ticket

Most reliable Quickest (80%+ on time)

Ranked by chance you reach Denver on time, from each leg’s forecast for the day. Total trip = scheduled departure to arrival (Denver is 2 h behind San Juan). Layovers up to 4 hours. Pick a connection for its 12-month details.
DeltaDetails → SJU 07:30 → ATL 11:14DL 1763 1h 41m Atlanta ATL 12:55 → DEN 14:00DL 957 8h 30m 98% 89%
UnitedDetails → SJU 16:55 → IAD 20:56UA 2024 1h 27m Dulles IAD 22:23 → DEN 00:30 +1UA 495 9h 35m 97% 88%
JetBlueDetails → SJU 05:01 → JFK 08:54B6 2904 3h 10m New York JFK 12:04 → DEN 14:10B6 1497 11h 09m 99% 87%
UnitedDetails → SJU 14:55 → IAH 18:51UA 668 1h 35m Houston IAH 20:26 → DEN 22:26UA 685 9h 31m 96% 85%
UnitedDetails → SJU 07:00 → IAH 10:53UA 1644 1h 40m Houston IAH 12:33 → DEN 14:17UA 2168 9h 17m 98% 85%
UnitedDetails → SJU 01:00 → EWR 05:10UA 2219 2h 46m Newark EWR 07:56 → DEN 10:18UA 1758 11h 18m 95% 84%
UnitedDetails → SJU 15:56 → ORD 20:15UA 2088 1h 47m Chicago ORD 22:02 → DEN 23:32UA 767 9h 36m 98% 82%
AmericanDetails → SJU 05:58 → MIA 08:51AA 3089 1h 03m Miami MIA 09:54 → DEN 12:13AA 2436 8h 15m 94% 80%
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