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Itineraries flown on 20+ days in the Jun 6 – Jul 31, 2026 schedule · each leg’s record Aug 2025 – Jul 2026

The nonstop is quickest: American MIA → SDF (2h 45m), on time 2 times in 3. Southwest via MCO (4h 45m) is more reliable, 87%, but takes 2h 00m longer.

Nonstops (seasonal or thin)

Nonstop details →
American MIA SDF 2h 45m 66% 1.2% 430 Flying now

Best connections, any airlines

Most reliable Quickest (80%+ on time)

Ranked by chance you reach Louisville on time. Total trip = scheduled departure to arrival, layover included. Layovers up to 4 hours. Pick a connection for the details.
AmericanDetails → MIA 05:25 → DFW 07:40AA 1226 1h 51m Dallas-Fort Worth DFW 09:31 → SDF 12:48AA 3791 · flown by Envoy 7h 23m 98% 88%
SouthwestDetails → MIA 05:25 → MCO 06:30WN 4086 1h 30m Orlando MCO 08:00 → SDF 10:10WN 872 4h 45m 96% 87%
SouthwestDetails → MIA 06:20 → BWI 08:55WN 974 1h 50m Baltimore BWI 10:45 → SDF 12:30WN 1297 6h 10m 97% 85%
DeltaDetails → MIA 06:00 → ATL 08:05DL 1249 2h 25m Atlanta ATL 10:30 → SDF 11:53DL 1481 5h 53m 98% 83%
AmericanDetails → MIA 09:00 → PHL 11:55AA 551 3h 39m Philadelphia PHL 15:34 → SDF 17:45AA 4720 · flown by Republic 8h 45m 97% 83%
DeltaDetails → MIA 12:02 → ATL 14:09DL 1510 3h 50m Atlanta ATL 17:59 → SDF 19:24DL 2831 7h 22m 99% 81%
AmericanDetails → MIA 07:00 → DFW 09:23AA 2575 2h 44m Dallas-Fort Worth DFW 12:07 → SDF 15:22AA 3758 · flown by Envoy 8h 22m 99% 81%
DeltaDetails → MIA 06:25 → LGA 09:29DL 2387 1h 36m New York LGA 11:05 → SDF 13:32DL 5637 · flown by Republic 7h 07m 96% 79%
Tight connection: often missed
AmericanDetails → MIA 12:21 → ORD 14:57AA 2910 1h 05m Chicago ORD 16:02 → SDF 18:36AA 4668 · flown by Republic 6h 17m 73% 58%
AmericanDetails → MIA 11:00 → DFW 13:18AA 3055 59m Dallas-Fort Worth DFW 14:17 → SDF 17:32AA 4152 · flown by Envoy 6h 30m 72% 55%
AmericanDetails → MIA 16:45 → PHL 19:41AA 1871 57m Philadelphia PHL 20:38 → SDF 23:03AA 4466 · flown by Republic 6h 18m 63% 52%

Same layover, different day-part

How often the first flight arrives too late to connect (45 min minimum), for one-ticket layovers of 45–80 minutes.

Morning
ATL · 1h 15m · leaves 07:10 4%
CLT · 1h 04m · leaves 06:21 9%
DFW · 55m · leaves 09:00 22%
Afternoon and evening
DFW · 1h 06m · leaves 16:39 34%
PHL · 57m · leaves 16:45 37%
BWI · 55m · leaves 18:50 68%

Delays build through the day, so an afternoon first leg eats the layover. A short connection is fine early in the morning and a gamble later on.

Mixing airlines

One ticketMiss it and the airline rebooks you; bags go through. 45 min is enough.
Separate ticketsMiss it and you buy a new ticket. Re-check bags, clear security again: we require 90 min.

The table above includes two-ticket connections (marked “two tickets”), held to the 90-minute minimum. One ticket only →

Regional partners count as the airline that sells them: SkyWest flying Delta Connection is one Delta ticket.

How these are worked out. Makes the connection: share of the last year’s flights where the first flight arrived with at least 45 minutes to spare (90 on separate tickets). Arrives on time: first flight not cancelled × connection made × second flight not cancelled and arriving within 15 minutes. Not yet counted: the second flight also leaving late (which helps), gate-to-gate distance at the hub, and rebooking after a missed connection.

About this data: US DOT on-time records, Aug 2025 – Jul 2026, all US airlines; regional flights count under the airline that sells them. Schedules (which flights and connections exist, and their times) are as of Jun 6 – Jul 31, 2026; seasonal flights outside that window aren’t ranked. Rebuilt monthly. JSON