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Today: only flights still to leave (it’s 11:47 am at Louisville); 4 already left
Monday, October 5 · our forecast odds · issued Mon 10:00 AM ET · connections flying that day

Today looks like a normal day here: all 2 nonstops are 15–18% likely to arrive 15+ min late.

Nonstops today

All 2 nonstops →
AA 4753 American flown by Republic Flight history → SDF 14:16 DCA 15:59 15% 4% 0.2% 60%
MQ 4023 Envoy SDF 18:13 DCA 19:57 18% 4% 0.5% no record

Best connections today, one ticket

Ranked by chance you reach Washington 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.

AmericanDetails → SDF 17:19 → ORD 18:06AA 4668 · flown by Republic 2h 57m Chicago ORD 21:03 → DCA 00:14 +1AA 514 6h 55m 98% 77%
DeltaDetails → SDF 16:31 → MSP 17:41DL 4007 · flown by SkyWest 2h 49m Minneapolis MSP 20:30 → DCA 23:56DL 2961 7h 25m 98% 76%
UnitedDetails → SDF 14:10 → ORD 14:50UA 5603 · flown by SkyWest 2h 27m Chicago ORD 17:17 → DCA 20:23UA 2761 6h 13m 97% 75%
UnitedDetails → SDF 15:41 → IAH 17:10UA 6310 · flown by Mesa 2h 40m Houston IAH 19:50 → DCA 23:59UA 2224 8h 18m 95% 70%
DeltaDetails → SDF 16:47 → ATL 18:25DL 3195 3h 34m Atlanta ATL 21:59 → DCA 23:52DL 537 7h 05m 99% 68%
DeltaDetails → SDF 14:09 → LGA 16:30DL 5637 · flown by Republic 2h 45m New York LGA 19:15 → DCA 20:59DL 5724 · flown by Republic 6h 50m 99% 67%
AmericanDetails → SDF 13:18 → DFW 14:40AA 3791 · flown by Envoy 2h 35m Dallas-Fort Worth DFW 17:15 → DCA 21:31AA 472 8h 13m 100% 67%
SouthwestDetails → SDF 18:05 → BNA 17:55WN 1712 2h 20m Nashville BNA 20:15 → DCA 23:03WN 4843 4h 58m 99% 67%
Tight connection: often missed
DeltaDetails → SDF 17:55 → LGA 20:20DL 4852 · flown by Endeavor 1h 00m New York LGA 21:20 → DCA 22:58DL 1825 5h 03m 62% 38%
DeltaDetails → SDF 12:40 → MSP 13:48DL 4988 · flown by Endeavor 49m Minneapolis MSP 14:37 → DCA 18:09DL 2963 5h 29m 48% 38%
AmericanDetails → SDF 17:10 → BOS 19:36AA 3438 · flown by Envoy 46m Boston BOS 20:22 → DCA 22:19AA 4047 · flown by Envoy 5h 09m 49% 29%
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