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 9 am and 30% of the time at 4 pm.

Nonstops


Delta	SLC	ORD	3h 12m	79%	0.9%	1,012	Flying now
United	SLC	ORD	3h 17m	76%	1.7%	1,149	Flying now
American	SLC	ORD	3h 21m	76%	1.9%	1,044	Flying now

Best connections, one ticket

Most reliable Quickest (80%+ on time)

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


United Details →	SLC 05:15 → DEN 06:54UA 5683 · flown by SkyWest	1h 06m Denver	DEN 08:00 → ORD 11:44UA 2430	5h 29m	96%	84%
Delta Details →	SLC 23:35 → ATL 05:15DL 912	2h 10m Atlanta	ATL 07:25 → ORD 08:35 +1DL 1178	8h 00m	98%	83%
American Details →	SLC 23:56 → MIA 06:32AA 3070	1h 56m Miami	MIA 08:28 → ORD 10:59 +1AA 1431	10h 03m	94%	83%
American Details →	SLC 23:25 → CLT 05:22AA 2611	2h 24m Charlotte	CLT 07:46 → ORD 09:02 +1AA 2843	8h 37m	96%	82%
United Details →	SLC 20:08 → SFO 21:10UA 2097	3h 40m San Francisco	SFO 00:50 → ORD 07:16 +1UA 1850	10h 08m	95%	81%
Alaska Details →	SLC 19:39 → PDX 20:43AS 3280 · flown by SkyWest	2h 16m Portland	PDX 22:59 → ORD 05:00 +1AS 376	8h 21m	96%	81%
United Details →	SLC 07:00 → DEN 08:42UA 1232	2h 33m Denver	DEN 11:15 → ORD 14:55UA 2865	6h 55m	99%	80%
United Details →	SLC 16:42 → LAX 17:53UA 5456 · flown by SkyWest	1h 05m Los Angeles	LAX 18:58 → ORD 01:15 +1UA 1754	7h 33m	97%	80%
Tight connection: often missed
United Details →	SLC 08:30 → DEN 10:27UA 5642 · flown by SkyWest	48m Denver	DEN 11:15 → ORD 14:55UA 2865	5h 25m	64%	53%
American Details →	SLC 14:00 → DFW 17:50AA 2613	48m Dallas-Fort Worth	DFW 18:38 → ORD 21:22AA 1424	6h 22m	47%	18%
United Details →	SLC 09:49 → SFO 11:13UA 5970 · flown by SkyWest	47m San Francisco	SFO 12:00 → ORD 18:35UA 2317	7h 46m	27%	13%

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

DTW · 1h 12m · leaves 06:00 3%

DEN · 1h 06m · leaves 05:15 4%

IAH · 58m · leaves 06:45 7%

Afternoon and evening

MIA · 58m · leaves 13:57 31%

SFO · 1h 11m · leaves 16:21 34%

DFW · 48m · leaves 14:00 53%

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 2077 SLC 23:36 → TPA United UA 2804 TPA 07:50 → ORD Connection details →	2h 05m	9h 24m	94%	91%
Southwest WN 4205 SLC 06:25 → LAS American AA 2020 LAS 09:40 → ORD Connection details →	2h 50m	8h 17m	100%	90%
Delta DL 696 SLC 23:31 → BOS United UA 1834 BOS 08:15 → ORD Connection details →	2h 10m	9h 41m	98%	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