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 8% of the time at 10 am and 27% of the time at 7 pm.

Nonstops


American	ATL	MIA	2h 02m	76%	0.8%	1,810	Flying now
Delta	ATL	MIA	2h 02m	72%	1.8%	3,306	Flying now
Frontier	ATL	MIA	2h 04m	65%	1.6%	900	Flying now
Spirit	ATL	MIA	1h 59m	75%	4.4%	252	Not 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.


United Details →	ATL 05:30 → IAD 07:20UA 641	1h 25m Dulles	IAD 08:45 → MIA 11:35UA 1073	6h 05m	98%	84%
American Details →	ATL 06:24 → CLT 07:55AA 5176 · flown by PSA	3h 06m Charlotte	CLT 11:01 → MIA 13:11AA 969	6h 46m	97%	81%
American Details →	ATL 05:00 → CLT 06:25AA 5507 · flown by PSA	3h 00m Charlotte	CLT 09:25 → MIA 11:37AA 1436	6h 37m	96%	81%
Southwest Details →	ATL 07:00 → BWI 08:50WN 4364	2h 55m Baltimore	BWI 11:45 → MIA 14:20WN 4737	7h 20m	97%	76%
American Details →	ATL 12:25 → PHL 14:36AA 4338 · flown by Republic	1h 49m Philadelphia	PHL 16:25 → MIA 19:27AA 3306	7h 02m	99%	75%
United Details →	ATL 07:15 → EWR 09:33UA 2053	1h 58m Newark	EWR 11:31 → MIA 14:38UA 2295	7h 23m	95%	75%
American Details →	ATL 06:00 → DCA 08:06AA 5501 · flown by PSA	1h 49m Washington	DCA 09:55 → MIA 12:38AA 1173	6h 38m	96%	72%
Delta Details →	ATL 07:30 → LGA 09:42DL 323	1h 33m New York	LGA 11:15 → MIA 14:24DL 1538	6h 54m	97%	71%
Tight connection: often missed
American Details →	ATL 18:45 → CLT 20:23AA 5040 · flown by PSA	2h 16m Charlotte	CLT 22:39 → MIA 00:46 +1AA 1596	6h 01m	73%	42%
American Details →	ATL 15:06 → CLT 16:36AA 5041 · flown by PSA	1h 24m Charlotte	CLT 18:00 → MIA 20:21AA 488	5h 15m	65%	39%
American Details →	ATL 15:04 → LGA 17:27AA 4605 · flown by Republic	57m New York	LGA 18:24 → MIA 21:48AA 716	6h 44m	58%	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

LGA · 1h 11m · leaves 09:24 6%

JFK · 1h 05m · leaves 07:44 8%

ORD · 1h 19m · leaves 07:25 18%

Afternoon and evening

PHL · 1h 15m · leaves 18:29 31%

LGA · 57m · leaves 15:04 42%

DFW · 57m · leaves 17:34 59%

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 1281 ATL 09:06 → EYW American AA 3518 EYW 13:47 → MIA Connection details →	2h 47m	5h 34m	97%	86%
Delta DL 1571 ATL 07:43 → STL American AA 3954 STL 11:00 → MIA Connection details →	2h 41m	7h 03m	98%	86%
Delta DL 2634 ATL 07:25 → RDU American AA 2405 RDU 11:10 → MIA Connection details →	2h 17m	5h 54m	99%	85%

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