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 75-minute layover misses 2% of the time at 7 am and 1 time in 3 at 6 pm.

Nonstops


United	IAH	SLC	3h 25m	84%	0.5%	1,169	Flying now
Delta	IAH	SLC	3h 16m	84%	0.3%	1,012	Flying now

Best connections, one ticket

Most reliable Quickest (80%+ on time)

Ranked by chance you reach Salt Lake City on time. Total trip = scheduled departure to arrival, layover included (Salt Lake City is 1 h behind Houston). Layovers up to 4 hours. Pick a connection for the details.


United Details →	IAH 05:22 → SFO 07:22UA 487	1h 18m San Francisco	SFO 08:40 → SLC 11:49UA 5605 · flown by SkyWest	7h 27m	98%	93%
United Details →	IAH 07:20 → LAX 08:57UA 2600	3h 58m Los Angeles	LAX 12:55 → SLC 15:48UA 5371 · flown by SkyWest	9h 28m	100%	89%
Delta Details →	IAH 07:10 → LAX 08:39DL 1216	3h 02m Los Angeles	LAX 11:41 → SLC 14:30DL 1194	8h 24m	99%	89%
United Details →	IAH 14:54 → LAX 16:27UA 1951	3h 52m Los Angeles	LAX 20:19 → SLC 23:11UA 5744 · flown by SkyWest	9h 17m	100%	88%
Delta Details →	IAH 05:40 → ATL 08:43DL 1069	1h 22m Atlanta	ATL 10:05 → SLC 12:10DL 387	7h 30m	98%	87%
United Details →	IAH 05:15 → DEN 06:47UA 1874	1h 13m Denver	DEN 08:00 → SLC 09:37UA 497	5h 22m	97%	87%
Delta Details →	IAH 06:30 → MSP 09:18DL 1050	3h 11m Minneapolis	MSP 12:29 → SLC 14:22DL 2651	8h 52m	97%	86%
Delta Details →	IAH 05:20 → DTW 09:11DL 1389	3h 14m Detroit	DTW 12:25 → SLC 14:19DL 935	9h 59m	99%	86%
Tight connection: often missed
Frontier Details →	IAH 11:54 → PHX 12:42F9 1703	49m Phoenix	PHX 13:31 → SLC 16:11F9 2526	5h 18m	59%	49%
United Details →	IAH 18:19 → DEN 20:14UA 1654	51m Denver	DEN 21:05 → SLC 22:44UA 5646 · flown by SkyWest	5h 25m	58%	47%
JetBlue Details →	IAH 13:27 → BOS 18:20B6 932	1h 12m Boston	BOS 19:32 → SLC 22:59B6 247	10h 32m	65%	35%

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

SFO · 1h 18m · leaves 05:22 2%

LAX · 1h 16m · leaves 07:10 3%

DEN · 1h 13m · leaves 05:15 3%

Afternoon and evening

BOS · 1h 12m · leaves 13:27 35%

DEN · 51m · leaves 18:19 42%

MSP · 47m · leaves 14:35 56%

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 6188 IAH 11:55 → OMA Delta DL 3896 OMA 17:50 → SLC Connection details →	3h 39m	8h 34m	100%	91%
United UA 2110 IAH 06:00 → LAX Delta DL 1434 LAX 09:55 → SLC Connection details →	2h 26m	7h 50m	100%	91%
United UA 740 IAH 09:30 → PDX Alaska AS 3120 PDX 14:30 → SLC Connection details →	2h 34m	8h 59m	94%	91%

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