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

Connect in the morning. The same one-hour layover misses 1 time in 10 at 9 am and almost half the time at 8 pm.

Nonstops


American	DFW	SDF	2h 09m	72%	3.4%	1,997	Flying now
Spirit	DFW	SDF	–	75%few flights	0.0%	4	Not 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 (Louisville is 1 h ahead of Dallas-Fort Worth). Layovers up to 4 hours. Pick a connection for the details.


United Details →	DFW 05:45 → DEN 06:53UA 773	2h 52m Denver	DEN 09:45 → SDF 14:28UA 1479	7h 43m	100%	88%
American Details →	DFW 07:30 → PHL 11:52AA 415	3h 42m Philadelphia	PHL 15:34 → SDF 17:45AA 4720 · flown by Republic	9h 15m	99%	84%
United Details →	DFW 05:10 → IAH 06:22UA 2260	2h 08m Houston	IAH 08:30 → SDF 11:54UA 3990 · flown by Mesa	5h 44m	99%	84%
Delta Details →	DFW 05:30 → ATL 08:42DL 401	1h 48m Atlanta	ATL 10:30 → SDF 11:53DL 1481	5h 23m	99%	82%
American Details →	DFW 07:00 → BOS 11:47AA 1583	2h 12m Boston	BOS 13:59 → SDF 16:40AA 3438 · flown by Envoy	8h 40m	95%	80%
Delta Details →	DFW 12:24 → ATL 15:42DL 961	2h 17m Atlanta	ATL 17:59 → SDF 19:24DL 2831	6h 00m	98%	79%
United Details →	DFW 14:15 → IAH 15:37UA 3985 · flown by Mesa	3h 12m Houston	IAH 18:49 → SDF 22:15UA 4052 · flown by Mesa	7h 00m	94%	79%
United Details →	DFW 11:59 → IAH 13:17UA 539	3h 18m Houston	IAH 16:35 → SDF 20:01UA 4050 · flown by Mesa	7h 02m	97%	78%
Tight connection: often missed
American Details →	DFW 15:30 → ORD 18:16AA 2740	1h 13m Chicago	ORD 19:29 → SDF 22:04AA 4603 · flown by Republic	5h 34m	61%	43%
United Details →	DFW 17:47 → ORD 20:30UA 1564	55m Chicago	ORD 21:25 → SDF 23:59UA 3659 · flown by Republic	5h 12m	54%	35%
American Details →	DFW 14:56 → DCA 18:59AA 3101	46m Washington	DCA 19:45 → SDF 21:40AA 4672 · flown by Republic	5h 44m	38%	24%

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

ORD · 1h 10m · leaves 07:08 10%

CLT · 1h 01m · leaves 05:00 10%

DCA · 1h 01m · leaves 07:02 14%

Afternoon and evening

ORD · 55m · leaves 17:47 46%

CLT · 1h 18m · leaves 15:57 46%

DCA · 46m · leaves 14:56 62%

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 2147 DFW 05:18 → DEN United UA 1479 DEN 09:45 → SDF Connection details →	3h 14m	8h 10m	99%	88%
United UA 1114 DFW 09:45 → ORD American AA 4668 ORD 16:02 → SDF Connection details →	3h 36m	7h 53m	100%	81%
American AA 3912 DFW 06:00 → BNA Southwest WN 670 BNA 10:05 → SDF Connection details →	2h 04m	5h 00m	91%	77%

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