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 15% of the time at 7 am and 42% of the time at 8 pm.

Nonstops (seasonal or thin)


Southwest	PHX	SDF	3h 20m	75%	0.5%	369	Flying now
American	PHX	SDF	–	100%few flights	0.0%	3	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 3 h ahead of Phoenix). Layovers up to 4 hours. Pick a connection for the details.


Southwest Details →	PHX 23:55 → MDW 05:10WN 3298	2h 35m Chicago	MDW 07:45 → SDF 10:05 +1WN 1267	7h 10m	100%	95%
American Details →	PHX 00:36 → DFW 05:09AA 1818	2h 16m Dallas-Fort Worth	DFW 07:25 → SDF 10:39AA 3788 · flown by Envoy	7h 03m	96%	87%
Southwest Details →	PHX 23:05 → MCO 06:20WN 4508	1h 40m Orlando	MCO 08:00 → SDF 10:10 +1WN 872	8h 05m	98%	87%
Delta Details →	PHX 23:59 → ATL 06:39DL 929	2h 31m Atlanta	ATL 09:10 → SDF 10:29 +1DL 1374	7h 33m	99%	87%
Southwest Details →	PHX 05:00 → MDW 10:20WN 2723	2h 25m Chicago	MDW 12:45 → SDF 14:55WN 4473	6h 55m	100%	85%
American Details →	PHX 05:02 → PHL 12:44AA 1511	2h 50m Philadelphia	PHL 15:34 → SDF 17:45AA 4720 · flown by Republic	9h 43m	100%	84%
United Details →	PHX 06:00 → DEN 08:52UA 337	53m Denver	DEN 09:45 → SDF 14:28UA 1479	5h 28m	92%	83%
United Details →	PHX 23:57 → EWR 07:41UA 2078	2h 24m Newark	EWR 10:05 → SDF 12:21 +1UA 3421 · flown by Republic	9h 24m	98%	82%
Tight connection: often missed
United Details →	PHX 11:12 → ORD 16:54UA 1748	56m Chicago	ORD 17:50 → SDF 20:23UA 3598 · flown by Republic	6h 11m	74%	54%
United Details →	PHX 14:45 → ORD 20:27UA 1686	58m Chicago	ORD 21:25 → SDF 23:59UA 3659 · flown by Republic	6h 14m	58%	37%
United Details →	PHX 11:40 → EWR 19:35UA 1190	50m Newark	EWR 20:25 → SDF 22:50UA 3512 · flown by Republic	8h 10m	65%	31%

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

DEN · 1h 20m · leaves 08:50 2%

MDW · 1h 05m · leaves 06:25 7%

ATL · 56m · leaves 23:59 15%

Afternoon and evening

ATL · 59m · leaves 10:21 18%

EWR · 50m · leaves 11:40 35%

ORD · 58m · leaves 14:45 42%

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.


Southwest WN 3259 PHX 05:15 → DEN United UA 1479 DEN 09:45 → SDF Connection details →	1h 45m	6h 13m	98%	87%
American AA 563 PHX 21:51 → MCO Southwest WN 872 MCO 08:00 → SDF Connection details →	3h 00m	9h 19m	94%	85%
Frontier F9 2608 PHX 23:30 → ATL Delta DL 1374 ATL 09:10 → SDF Connection details →	2h 41m	8h 02m	96%	82%

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