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 14% of the time at 8 am and 37% of the time at 5 pm.

Nonstops


United	ORD	SLC	3h 39m	73%	1.2%	1,147	Flying now
Delta	ORD	SLC	3h 31m	73%	1.0%	1,013	Flying now
American	ORD	SLC	3h 38m	66%	2.0%	1,044	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 Chicago). Layovers up to 4 hours. Pick a connection for the details.


United Details →	ORD 05:00 → DEN 06:42UA 2666	1h 18m Denver	DEN 08:00 → SLC 09:37UA 497	5h 37m	99%	89%
United Details →	ORD 07:00 → LAX 09:33UA 2361	3h 22m Los Angeles	LAX 12:55 → SLC 15:48UA 5371 · flown by SkyWest	9h 48m	100%	88%
United Details →	ORD 14:30 → LAX 17:05UA 374	3h 14m Los Angeles	LAX 20:19 → SLC 23:11UA 5744 · flown by SkyWest	9h 41m	99%	87%
Delta Details →	ORD 07:35 → LAX 10:01DL 1556	3h 09m Los Angeles	LAX 13:10 → SLC 16:07DL 1647	9h 32m	100%	87%
Delta Details →	ORD 05:30 → ATL 08:33DL 1264	1h 32m Atlanta	ATL 10:05 → SLC 12:10DL 387	7h 40m	96%	86%
Delta Details →	ORD 08:36 → MSP 10:15DL 1554	2h 14m Minneapolis	MSP 12:29 → SLC 14:22DL 2651	6h 46m	94%	84%
United Details →	ORD 08:40 → DEN 10:31UA 526	3h 09m Denver	DEN 13:40 → SLC 15:13UA 1840	7h 33m	100%	84%
American Details →	ORD 05:00 → PHX 06:32AA 2434	2h 07m Phoenix	PHX 08:39 → SLC 11:37AA 6422 · flown by SkyWest	7h 37m	95%	84%
Tight connection: often missed
Delta Details →	ORD 13:46 → ATL 16:54DL 2894	1h 01m Atlanta	ATL 17:55 → SLC 19:58DL 653	7h 12m	73%	59%
American Details →	ORD 17:34 → PHX 19:19AA 3261	1h 01m Phoenix	PHX 20:20 → SLC 23:03AA 4921 · flown by SkyWest	6h 29m	57%	42%
American Details →	ORD 16:51 → DFW 19:28AA 2988	1h 42m Dallas-Fort Worth	DFW 21:10 → SLC 22:59AA 2993	7h 08m	71%	30%

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

DEN · 1h 18m · leaves 05:00 1%

DFW · 1h 07m · leaves 05:00 9%

PDX · 1h 10m · leaves 07:20 13%

Afternoon and evening

DFW · 1h 12m · leaves 14:59 31%

PDX · 53m · leaves 14:12 37%

PHX · 1h 01m · leaves 17:34 43%

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 2284 ORD 08:00 → PDX Alaska AS 3120 PDX 14:30 → SLC Connection details →	3h 58m	10h 29m	99%	95%
American AA 3489 ORD 07:06 → CVG Delta DL 678 CVG 12:30 → SLC Connection details →	2h 55m	8h 08m	100%	91%
United UA 2232 ORD 07:00 → MSP Delta DL 2651 MSP 12:29 → SLC Connection details →	3h 48m	8h 22m	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