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)


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

Best connections, one ticket

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.


American Details →	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%
Southwest Details →	MIA 05:25 → MCO 06:30WN 4086	1h 30m Orlando	MCO 08:00 → SDF 10:10WN 872	4h 45m	96%	87%
Southwest Details →	MIA 06:20 → BWI 08:55WN 974	1h 50m Baltimore	BWI 10:45 → SDF 12:30WN 1297	6h 10m	97%	85%
Delta Details →	MIA 06:00 → ATL 08:05DL 1249	2h 25m Atlanta	ATL 10:30 → SDF 11:53DL 1481	5h 53m	98%	83%
American Details →	MIA 09:00 → PHL 11:55AA 551	3h 39m Philadelphia	PHL 15:34 → SDF 17:45AA 4720 · flown by Republic	8h 45m	97%	83%
Delta Details →	MIA 12:02 → ATL 14:09DL 1510	3h 50m Atlanta	ATL 17:59 → SDF 19:24DL 2831	7h 22m	99%	81%
American Details →	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%
Delta Details →	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
American Details →	MIA 12:21 → ORD 14:57AA 2910	1h 05m Chicago	ORD 16:02 → SDF 18:36AA 4668 · flown by Republic	6h 17m	73%	58%
American Details →	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%
American Details →	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.


Frontier F9 2135 MIA 06:50 → DFW American AA 3758 DFW 12:07 → SDF Connection details →	3h 00m	8h 32m	95%	79%
Frontier F9 2483 MIA 08:30 → ATL Delta DL 3195 ATL 14:07 → SDF Connection details →	3h 17m	7h 01m	99%	75%
American AA 1739 MIA 08:57 → DEN Southwest WN 1712 DEN 12:55 → SDF Connection details →	1h 36m	8h 28m	92%	69%

Rank all connections, any airlines →

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