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

No clear winner: airlines and hours on this route all land within a few points of 84% on time.

Nonstops (seasonal or thin)

Nonstop details →
Southwest SDF PHX 4h 00m 84% 1.1% 369 Flying now
American SDF PHX – 67%few flights 0.0% 3 Not flying now

Best connections, any airlines

Ranked by chance you reach Phoenix on time. Total trip = scheduled departure to arrival, layover included (Phoenix is 3 h behind Louisville). Layovers up to 4 hours. Pick a connection for the details.

Southwest + Americantwo ticketsDetails → SDF 06:15 → LAS 07:10WN 3607 2h 46m Las Vegas LAS 09:56 → PHX 11:08AA 2004 7h 53m 100% 92%
UnitedDetails → SDF 06:30 → EWR 08:38UA 3594 · flown by Republic 2h 46m Newark EWR 11:24 → PHX 13:39UA 370 10h 09m 99% 86%
UnitedDetails → SDF 08:00 → DEN 08:59UA 1506 2h 26m Denver DEN 11:25 → PHX 12:25UA 1686 7h 25m 99% 86%
AmericanDetails → SDF 05:04 → CLT 06:41AA 5255 · flown by PSA 2h 59m Charlotte CLT 09:40 → PHX 11:04AA 1986 8h 59m 96% 86%
UnitedDetails → SDF 07:15 → ORD 07:56UA 3422 · flown by Republic 1h 06m Chicago ORD 09:02 → PHX 11:03UA 2225 6h 48m 93% 86%
UnitedDetails → SDF 10:04 → ORD 10:40UA 5629 · flown by SkyWest 2h 50m Chicago ORD 13:30 → PHX 15:19UA 455 8h 15m 100% 85%
UnitedDetails → SDF 09:30 → IAH 10:58UA 6326 · flown by Mesa 3h 22m Houston IAH 14:20 → PHX 15:10UA 1238 8h 40m 97% 82%
UnitedDetails → SDF 06:15 → IAH 07:42UA 6266 · flown by Mesa 1h 58m Houston IAH 09:40 → PHX 10:34UA 1895 7h 19m 97% 81%
Tight connection: often missed
AmericanDetails → SDF 06:38 → DFW 08:08AA 331 47m Dallas-Fort Worth DFW 08:55 → PHX 09:29AA 520 5h 51m 74% 52%
AmericanDetails → SDF 15:39 → CLT 17:24AA 5397 · flown by PSA 59m Charlotte CLT 18:23 → PHX 19:51AA 1073 7h 12m 67% 40%
AmericanDetails → SDF 18:02 → DFW 19:28AA 4152 · flown by Envoy 1h 02m Dallas-Fort Worth DFW 20:30 → PHX 21:02AA 1133 6h 00m 69% 38%

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.

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