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 12 pm and 42% of the time at 6 pm.

Nonstops


American	MIA	JAX	1h 25m	74%	0.7%	1,494	Flying now

Best connections, one ticket

Most reliable Quickest (80%+ on time)

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


Delta Details →	MIA 06:00 → ATL 08:05DL 1249	1h 25m Atlanta	ATL 09:30 → JAX 10:43DL 2356	4h 43m	96%	82%
Delta Details →	MIA 07:10 → ATL 09:15DL 1211	1h 33m Atlanta	ATL 10:48 → JAX 12:00DL 2923	4h 50m	97%	81%
United Details →	MIA 07:07 → EWR 10:11UA 1864	2h 50m Newark	EWR 13:01 → JAX 15:42UA 2678	8h 35m	99%	80%
Delta Details →	MIA 08:17 → ATL 10:20DL 1261	3h 37m Atlanta	ATL 13:57 → JAX 15:07DL 2990	6h 51m	99%	79%
United Details →	MIA 08:48 → IAH 10:42UA 2417	1h 28m Houston	IAH 12:10 → JAX 15:37UA 4048 · flown by Mesa	6h 49m	93%	76%
American Details →	MIA 06:21 → CLT 08:35AA 2187	2h 51m Charlotte	CLT 11:26 → JAX 12:51AA 2001	6h 30m	98%	74%
Delta Details →	MIA 10:40 → ATL 12:48DL 2836	2h 32m Atlanta	ATL 15:20 → JAX 16:33DL 2720	5h 53m	97%	72%
Southwest Details →	MIA 06:20 → BWI 08:55WN 974	2h 40m Baltimore	BWI 11:35 → JAX 13:35WN 970	7h 15m	100%	71%
Tight connection: often missed
Delta Details →	MIA 19:16 → ATL 21:34DL 1323	1h 14m Atlanta	ATL 22:48 → JAX 23:59DL 2276	4h 43m	70%	51%
American Details →	MIA 14:28 → DFW 16:50AA 2762	55m Dallas-Fort Worth	DFW 17:45 → JAX 21:14AA 2449	6h 48m	63%	36%
American Details →	MIA 15:30 → DFW 17:50AA 1199	1h 02m Dallas-Fort Worth	DFW 18:52 → JAX 22:24AA 2263	6h 54m	58%	27%

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

DCA · 1h 20m · leaves 08:02 3%

EWR · 1h 07m · leaves 08:48 10%

CLT · 1h 16m · leaves 07:57 11%

Afternoon and evening

CLT · 1h 07m · leaves 19:10 27%

ATL · 1h 14m · leaves 19:16 30%

DFW · 1h 02m · leaves 15:30 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.


American AA 603 MIA 07:00 → IAH United UA 4048 IAH 12:10 → JAX Connection details →	3h 20m	8h 37m	98%	80%
Frontier F9 2483 MIA 08:30 → ATL Delta DL 2990 ATL 13:57 → JAX Connection details →	3h 07m	6h 38m	99%	78%
American AA 2582 MIA 08:20 → SJU JetBlue B6 1742 SJU 13:03 → JAX Connection details →	1h 59m	7h 57m	97%	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