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 8 am and 28% of the time at 7 pm.

Nonstops


United	SFO	MIA	5h 38m	79%	0.0%	613	Flying now
American	SFO	MIA	5h 30m	76%	0.8%	1,133	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 (Miami is 3 h ahead of San Francisco). Layovers up to 4 hours. Pick a connection for the details.


American Details →	SFO 23:49 → CLT 08:05AA 1580	2h 56m Charlotte	CLT 11:01 → MIA 13:11 +1AA 969	10h 21m	100%	87%
United Details →	SFO 21:30 → IAD 05:53UA 357	2h 52m Dulles	IAD 08:45 → MIA 11:35 +1UA 1073	11h 05m	100%	87%
Delta Details →	SFO 17:07 → SLC 20:02DL 1088	2h 58m Salt Lake City	SLC 23:00 → MIA 05:42 +1DL 2040	9h 35m	97%	86%
Delta Details →	SFO 22:55 → DTW 06:30DL 335	2h 52m Detroit	DTW 09:22 → MIA 12:30 +1DL 1468	10h 35m	99%	84%
Delta Details →	SFO 00:35 → MSP 06:09DL 2789	2h 46m Minneapolis	MSP 08:55 → MIA 13:37DL 2129	10h 02m	98%	84%
American Details →	SFO 22:05 → CLT 06:11AA 2514	3h 14m Charlotte	CLT 09:25 → MIA 11:37 +1AA 1436	10h 32m	98%	83%
American Details →	SFO 21:10 → PHL 05:43AA 2045	2h 32m Philadelphia	PHL 08:15 → MIA 11:12 +1AA 2184	11h 02m	95%	83%
United Details →	SFO 05:00 → IAH 10:55UA 2168	1h 05m Houston	IAH 12:00 → MIA 15:47UA 410	7h 47m	97%	81%
Tight connection: often missed
Delta Details →	SFO 11:38 → ATL 19:27DL 693	49m Atlanta	ATL 20:16 → MIA 22:17DL 1588	7h 39m	72%	47%
American Details →	SFO 10:25 → ORD 16:59AA 2543	1h 01m Chicago	ORD 18:00 → MIA 22:17AA 2690	8h 52m	72%	29%
American Details →	SFO 11:24 → DFW 17:14AA 1849	56m Dallas-Fort Worth	DFW 18:10 → MIA 22:05AA 2206	7h 41m	41%	22%

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

IAH · 1h 05m · leaves 05:00 3%

LAX · 1h 00m · leaves 07:00 6%

IAD · 1h 15m · leaves 23:05 11%

Afternoon and evening

PHX · 1h 00m · leaves 18:55 43%

SLC · 46m · leaves 19:24 44%

DFW · 56m · leaves 11:24 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.


United UA 2001 SFO 16:15 → BOS American AA 1418 BOS 05:10 → MIA Connection details →	3h 59m	13h 23m	99%	95%
United UA 1642 SFO 08:35 → DTW American AA 3358 DTW 18:57 → MIA Connection details →	2h 30m	10h 35m	98%	90%
United UA 1807 SFO 23:59 → AUS Delta DL 2507 AUS 08:35 → MIA Connection details →	2h 49m	9h 34m	100%	89%

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