tailodds FORECAST
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: no forecasts for this route’s flights; their 12-month records are below.

Nonstops that day

All 1 nonstop →
UA 4036 United flown by Mesa no forecast: 12-month record GRR 17:07 IAH 19:10 32% 13% 0.0% 68%

Best connections that day, one ticket

Most reliable Quickest (80%+ on time)

Ranked by chance you reach Houston on time, from each leg’s forecast for the day. Total trip = scheduled departure to arrival (Houston is 1 h behind Grand Rapids). Layovers up to 4 hours. Pick a connection for its 12-month details.
UnitedDetails → GRR 05:15 → ORD 05:32UA 5615 · flown by SkyWest 2h 03m Chicago ORD 07:35 → IAH 10:36UA 1231 6h 21m 96% 86%
DeltaDetails → GRR 07:00 → MSP 07:32DL 2913 2h 52m Minneapolis MSP 10:24 → IAH 13:14DL 2673 7h 14m 99% 85%
DeltaDetails → GRR 06:10 → ATL 08:14DL 2453 1h 51m Atlanta ATL 10:05 → IAH 11:14DL 1682 6h 04m 99% 84%
UnitedDetails → GRR 06:05 → EWR 08:00UA 3718 · flown by Republic 2h 53m Newark EWR 10:53 → IAH 13:38UA 556 8h 33m 99% 84%
AmericanDetails → GRR 10:07 → ORD 10:30AA 6391 · flown by SkyWest 3h 05m Chicago ORD 13:35 → IAH 16:31AA 4426 · flown by Republic 7h 24m 97% 83%
UnitedDetails → GRR 08:00 → DEN 08:54UA 2648 2h 40m Denver DEN 11:34 → IAH 15:09UA 1599 8h 09m 99% 83%
DeltaDetails → GRR 08:15 → DTW 09:18DL 3885 · flown by SkyWest 3h 12m Detroit DTW 12:30 → IAH 14:30DL 1864 7h 15m 100% 82%
UnitedDetails → GRR 07:15 → ORD 07:28UA 2137 2h 57m Chicago ORD 10:25 → IAH 13:23UA 2638 7h 08m 96% 82%
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