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 6% of the time at 7 am and 44% of the time at 5 pm.

Nonstops


Delta	LGA	SDF	2h 32m	81%	3.9%	1,157	Flying now
American	LGA	SDF	2h 23m	76%few flights	0.0%	39	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. Layovers up to 4 hours. Pick a connection for the details.


American Details →	LGA 09:00 → BOS 10:19AA 4373 · flown by Republic	3h 40m Boston	BOS 13:59 → SDF 16:40AA 3438 · flown by Envoy	7h 40m	100%	84%
Southwest Details →	LGA 07:25 → MDW 08:50WN 2465	3h 55m Chicago	MDW 12:45 → SDF 14:55WN 4473	7h 30m	100%	83%
Delta Details →	LGA 06:00 → ATL 08:15DL 550	2h 15m Atlanta	ATL 10:30 → SDF 11:53DL 1481	5h 53m	98%	82%
Delta Details →	LGA 13:00 → ATL 15:26DL 994	2h 33m Atlanta	ATL 17:59 → SDF 19:24DL 2831	6h 24m	97%	80%
Delta Details →	LGA 17:00 → ATL 19:50DL 968	3h 12m Atlanta	ATL 23:02 → SDF 00:26 +1DL 2624	7h 28m	97%	79%
United Details →	LGA 06:00 → IAD 07:26UA 3656 · flown by Republic	1h 05m Dulles	IAD 08:31 → SDF 10:23UA 3526 · flown by Republic	4h 23m	94%	78%
Delta Details →	LGA 06:00 → BOS 07:15DL 5852 · flown by Republic	2h 13m Boston	BOS 09:28 → SDF 12:09DL 5615 · flown by Republic	6h 11m	98%	78%
American Details →	LGA 07:43 → DCA 09:13AA 4491 · flown by Republic	2h 47m Washington	DCA 12:00 → SDF 13:48AA 4753 · flown by Republic	6h 05m	100%	77%
Tight connection: often missed
Delta Details →	LGA 10:59 → ATL 13:20DL 993	47m Atlanta	ATL 14:07 → SDF 15:31DL 3195	4h 32m	75%	57%
American Details →	LGA 16:00 → ORD 18:08AA 396	1h 21m Chicago	ORD 19:29 → SDF 22:04AA 4603 · flown by Republic	6h 04m	74%	50%
Southwest Details →	LGA 17:30 → BNA 19:25WN 2448	1h 05m Nashville	BNA 20:30 → SDF 22:25WN 671	4h 58m	55%	14%

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

BOS · 1h 06m · leaves 06:59 3%

ATL · 1h 10m · leaves 06:59 4%

IAD · 1h 05m · leaves 06:00 6%

Afternoon and evening

DFW · 55m · leaves 16:00 41%

IAD · 50m · leaves 14:51 44%

BNA · 1h 05m · leaves 17:30 45%

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.


American AA 4605 LGA 11:51 → ATL Delta DL 2831 ATL 17:59 → SDF Connection details →	3h 31m	7h 33m	98%	80%
American AA 4377 LGA 06:00 → BOS Delta DL 5615 BOS 09:28 → SDF Connection details →	2h 08m	6h 11m	98%	79%
American AA 4628 LGA 06:09 → ATL Delta DL 1481 ATL 10:30 → SDF Connection details →	1h 47m	5h 44m	96%	78%

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