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 11 am and 1 time in 5 at 7 pm.

Nonstops (seasonal or thin)


Delta	SLC	MIA	4h 42m	91%	0.5%	364	Flying now
American	SLC	MIA	4h 36m	82%	0.7%	432	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 2 h ahead of Salt Lake City). Layovers up to 4 hours. Pick a connection for the details.


Delta Details →	SLC 23:35 → ATL 05:15DL 912	2h 15m Atlanta	ATL 07:30 → MIA 09:30 +1DL 2836	7h 58m	99%	86%
United Details →	SLC 23:59 → IAD 06:13UA 726	2h 32m Dulles	IAD 08:45 → MIA 11:35 +1UA 1073	9h 36m	98%	82%
Southwest Details →	SLC 23:35 → BWI 05:40WN 3735	2h 32m Baltimore	BWI 08:12 → MIA 10:52 +1WN 3278	9h 17m	100%	80%
United Details →	SLC 06:45 → IAH 10:57UA 2366	1h 03m Houston	IAH 12:00 → MIA 15:47UA 410	7h 02m	94%	78%
American Details →	SLC 23:25 → CLT 05:22AA 2611	1h 43m Charlotte	CLT 07:05 → MIA 09:12 +1AA 770	7h 47m	91%	76%
American Details →	SLC 18:50 → PHX 19:37AA 4928 · flown by SkyWest	3h 28m Phoenix	PHX 23:05 → MIA 06:28 +1AA 2654	9h 38m	96%	76%
Delta Details →	SLC 23:31 → BOS 06:05DL 696	1h 00m Boston	BOS 07:05 → MIA 10:39 +1DL 1399	9h 04m	92%	75%
Delta Details →	SLC 06:00 → DTW 11:23DL 2289	3h 20m Detroit	DTW 14:43 → MIA 18:04DL 866	10h 04m	100%	73%
Tight connection: often missed
United Details →	SLC 12:35 → ORD 17:00UA 1178	1h 05m Chicago	ORD 18:05 → MIA 22:27UA 2180	7h 52m	70%	49%
American Details →	SLC 14:00 → DFW 17:50AA 2613	1h 22m Dallas-Fort Worth	DFW 19:12 → MIA 22:59AA 1824	6h 59m	74%	48%
United Details →	SLC 20:08 → SFO 21:10UA 2097	1h 44m San Francisco	SFO 22:54 → MIA 07:39 +1UA 1769	9h 31m	45%	38%

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 03m · leaves 06:45 6%

BOS · 1h 00m · leaves 23:31 8%

DFW · 58m · leaves 08:00 13%

Afternoon and evening

ATL · 53m · leaves 13:35 19%

ORD · 1h 05m · leaves 12:35 30%

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 2236 SLC 09:45 → DTW American AA 3358 DTW 18:57 → MIA Connection details →	3h 43m	10h 25m	100%	92%
Alaska AS 3018 SLC 07:40 → SAN American AA 2979 SAN 12:36 → MIA Connection details →	3h 46m	11h 15m	100%	87%
Delta DL 2069 SLC 23:36 → MCO American AA 2240 MCO 10:00 → MIA Connection details →	4h 00m	9h 39m	100%	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