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 90-minute layover misses 4% of the time at 7 am and 15% of the time at 8 pm.

Nonstops (seasonal or thin)


American	SDF	MIA	2h 37m	83%	1.6%	429	Flying now

Best connections, one ticket

Most reliable Quickest (80%+ on time)

Ranked by chance you reach Miami on time. Total trip = scheduled departure to arrival, layover included. Layovers up to 4 hours. Pick a connection for the details.


American Details →	SDF 06:00 → DCA 07:50AA 4549 · flown by Republic	2h 05m Washington	DCA 09:55 → MIA 12:38AA 1173	6h 38m	97%	84%
American Details →	SDF 05:04 → CLT 06:41AA 5255 · flown by PSA	2h 44m Charlotte	CLT 09:25 → MIA 11:37AA 1436	6h 33m	94%	81%
United Details →	SDF 06:00 → IAD 07:35UA 3438 · flown by Republic	1h 10m Dulles	IAD 08:45 → MIA 11:35UA 1073	5h 35m	93%	79%
Delta Details →	SDF 06:00 → ATL 07:25DL 2407	3h 35m Atlanta	ATL 11:00 → MIA 13:04DL 1332	7h 04m	99%	79%
American Details →	SDF 06:51 → ORD 07:38AA 4622 · flown by Republic	2h 26m Chicago	ORD 10:04 → MIA 14:16AA 1474	7h 26m	97%	78%
United Details →	SDF 06:30 → EWR 08:38UA 3594 · flown by Republic	2h 53m Newark	EWR 11:31 → MIA 14:38UA 2295	8h 08m	99%	74%
Delta Details →	SDF 08:10 → ATL 09:40DL 2299	3h 14m Atlanta	ATL 12:54 → MIA 14:55DL 1579	6h 45m	98%	74%
United Details →	SDF 07:15 → ORD 07:56UA 3422 · flown by Republic	2h 37m Chicago	ORD 10:33 → MIA 14:57UA 1620	7h 42m	99%	74%
Tight connection: often missed
American Details →	SDF 18:25 → PHL 20:23AA 5394 · flown by PSA	1h 32m Philadelphia	PHL 21:55 → MIA 00:52 +1AA 2936	6h 27m	66%	33%
American Details →	SDF 13:21 → DFW 14:44AA 399	55m Dallas-Fort Worth	DFW 15:39 → MIA 19:40AA 3083	6h 19m	59%	26%
American Details →	SDF 15:54 → DFW 17:16AA 5105 · flown by PSA	54m Dallas-Fort Worth	DFW 18:10 → MIA 22:05AA 2206	6h 11m	48%	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

DEN · 1h 10m · leaves 08:00 4%

ATL · 1h 20m · leaves 08:10 7%

IAD · 1h 10m · leaves 06:00 7%

Afternoon and evening

LGA · 1h 20m · leaves 14:13 14%

BNA · 1h 20m · leaves 18:05 21%

DFW · 54m · leaves 15:52 23%

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.


Delta DL 5160 SDF 14:19 → DTW American AA 3358 DTW 18:57 → MIA Connection details →	3h 11m	7h 51m	98%	88%
Southwest WN 3604 SDF 07:25 → BNA American AA 1521 BNA 10:39 → MIA Connection details →	3h 24m	6h 35m	100%	85%
Southwest WN 4679 SDF 06:40 → MCO American AA 1712 MCO 11:02 → MIA Connection details →	2h 22m	5h 34m	98%	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