Itineraries flown on 20+ days in the Jun 6 – Jul 31, 2026 schedule · each leg’s record Aug 2025 – Jul 2026

No clear winner: Delta’s SLC → PIT flights land within a few points of 86% on time whatever the hour.

Nonstops (seasonal or thin)


Delta	SLC	PIT	3h 45m	86%	1.1%	363	Flying now

Best connections, one ticket

Most reliable Quickest (80%+ on time)

Ranked by chance you reach Pittsburgh on time. Total trip = scheduled departure to arrival, layover included (Pittsburgh is 2 h ahead of Salt Lake City). Layovers up to 4 hours. Pick a connection for the details.


Delta Details →	SLC 23:50 → DTW 05:19DL 2841	3h 11m Detroit	DTW 08:30 → PIT 09:47 +1DL 5606 · flown by Republic	7h 58m	100%	91%
Delta Details →	SLC 23:35 → ATL 05:15DL 912	3h 48m Atlanta	ATL 09:03 → PIT 10:45 +1DL 1363	9h 09m	100%	90%
Delta Details →	SLC 23:31 → BOS 06:05DL 696	2h 10m Boston	BOS 08:15 → PIT 10:19 +1DL 5678 · flown by Republic	8h 47m	99%	88%
American Details →	SLC 23:25 → CLT 05:22AA 2611	2h 43m Charlotte	CLT 08:05 → PIT 09:30 +1AA 2310	8h 05m	96%	87%
United Details →	SLC 06:05 → SFO 07:19UA 4763 · flown by SkyWest	1h 04m San Francisco	SFO 08:23 → PIT 16:27UA 2836	8h 22m	94%	84%
United Details →	SLC 05:15 → DEN 06:54UA 5683 · flown by SkyWest	3h 11m Denver	DEN 10:05 → PIT 15:16UA 1308	8h 01m	100%	84%
United Details →	SLC 23:59 → IAD 06:13UA 726	2h 17m Dulles	IAD 08:30 → PIT 09:40 +1UA 6119 · flown by Mesa	7h 41m	98%	83%
Delta Details →	SLC 07:00 → ATL 12:44DL 907	2h 45m Atlanta	ATL 15:29 → PIT 17:15DL 1568	8h 15m	100%	83%
Tight connection: often missed
American Details →	SLC 13:28 → ORD 17:59AA 2616	46m Chicago	ORD 18:45 → PIT 21:30AA 4569 · flown by Republic	6h 04m	67%	44%
United Details →	SLC 12:35 → ORD 17:00UA 1178	1h 05m Chicago	ORD 18:05 → PIT 20:51UA 1946	6h 16m	70%	44%
Southwest Details →	SLC 15:15 → PHX 16:00WN 3353	55m Phoenix	PHX 16:55 → PIT 23:55WN 4804	6h 40m	50%	18%

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%

SFO · 1h 04m · leaves 06:05 6%

DEN · 50m · leaves 07:45 16%

Afternoon and evening

ORD · 46m · leaves 13:28 33%

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.


Southwest WN 3737 SLC 05:42 → DEN United UA 1308 DEN 10:05 → PIT Connection details →	2h 57m	7h 34m	100%	83%
American AA 1327 SLC 06:07 → ORD United UA 3432 ORD 12:40 → PIT Connection details →	2h 10m	7h 16m	90%	79%
Delta DL 2038 SLC 23:38 → EWR United UA 4390 EWR 09:15 → PIT Connection details →	3h 15m	9h 07m	99%	79%

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