tailodds FORECAST
Tickets
Any day
Today: only flights still to leave (it’s 6:54 am at Dulles)
Monday, October 5 · our forecast odds · issued Mon 5:00 AM ET · connections flying that day

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

Nonstops today

All 2 nonstops →
UA 4425 United flown by GoJet no forecast: 12-month record IAD 09:00 STL 10:27 17% 14% 2.7% 83%
UA 4527 United flown by GoJet no forecast: 12-month record IAD 17:55 STL 19:26 27% 16% 1.1% 73%

Best connections today, one ticket

Most reliable Quickest (80%+ on time)

Ranked by chance you reach St Louis on time, from each leg’s forecast for the day. Total trip = scheduled departure to arrival (St Louis is 1 h behind Dulles). Layovers up to 4 hours. Pick a connection for its 12-month details.
UnitedDetails → IAD 10:31 → ORD 11:53UA 1252 2h 27m Chicago ORD 14:20 → STL 15:46UA 2000 6h 15m 100% 88%
UnitedDetails → IAD 08:15 → ORD 09:36UA 1775 1h 20m Chicago ORD 10:56 → STL 12:25UA 1044 5h 10m 95% 86%
DeltaDetails → IAD 11:10 → DTW 12:47DL 2884 3h 58m Detroit DTW 16:45 → STL 17:24DL 2822 7h 14m 100% 82%
DeltaDetails → IAD 11:35 → MSP 13:35DL 3699 · flown by SkyWest 1h 35m Minneapolis MSP 15:10 → STL 16:48DL 1224 6h 13m 95% 81%
DeltaDetails → IAD 17:46 → ATL 19:54DL 1695 3h 16m Atlanta ATL 23:10 → STL 23:53DL 1403 7h 07m 95% 79%
DeltaDetails → IAD 10:21 → ATL 12:04DL 1324 3h 13m Atlanta ATL 15:17 → STL 16:09DL 543 6h 48m 97% 78%
DeltaDetails → IAD 08:27 → ATL 10:18DL 3080 3h 51m Atlanta ATL 14:09 → STL 14:48DL 2700 7h 21m 98% 77%
UnitedDetails → IAD 10:13 → DEN 12:05UA 1865 1h 20m Denver DEN 13:25 → STL 16:33UA 1639 7h 20m 95% 77%
Tight connection: often missed
DeltaDetails → IAD 12:37 → ATL 14:28DL 1444 49m Atlanta ATL 15:17 → STL 16:09DL 543 4h 32m 64% 52%
AmericanDetails → IAD 20:22 → CLT 21:55AA 1450 1h 01m Charlotte CLT 22:56 → STL 23:58AA 459 4h 36m 70% 50%
UnitedDetails → IAD 17:42 → ORD 18:50UA 2497 55m Chicago ORD 19:45 → STL 21:04UA 1625 4h 22m 61% 48%
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 Mon, Oct 5 (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