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 4% of the time at 8 am and 27% of the time at 7 pm.

Nonstops (seasonal or thin)


Delta	PHL	SLC	4h 57m	81%	1.2%	598	Flying now
American	PHL	SLC	5h 15m	74%	4.5%	220	Flying now

Best connections, any airlines

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 2 h behind Philadelphia). Layovers up to 4 hours. Pick a connection for the details.


American + Alaskatwo ticketsDetails →	PHL 08:20 → PDX 11:33AA 3090	2h 57m Portland	PDX 14:30 → SLC 17:29AS 3120 · flown by SkyWest	11h 09m	98%	94%
American + Deltatwo ticketsDetails →	PHL 08:50 → MSY 10:55AA 942	2h 35m New Orleans	MSY 13:30 → SLC 16:08DL 736	9h 18m	100%	92%
American + Deltatwo ticketsDetails →	PHL 09:00 → STL 10:36AA 2720	3h 52m St Louis	STL 14:28 → SLC 16:40DL 2455	9h 40m	100%	90%
Delta Details →	PHL 05:15 → ATL 07:22DL 1269	2h 43m Atlanta	ATL 10:05 → SLC 12:10DL 387	8h 55m	99%	88%
Southwest + Deltatwo ticketsDetails →	PHL 09:00 → BNA 10:05WN 3215	3h 56m Nashville	BNA 14:01 → SLC 16:37DL 1593	9h 37m	100%	87%
American + Deltatwo ticketsDetails →	PHL 09:32 → ATL 11:53AA 4338 · flown by Republic	2h 02m Atlanta	ATL 13:55 → SLC 15:51DL 423	8h 21m	100%	85%
American + Deltatwo ticketsDetails →	PHL 11:05 → PHX 13:09AA 646	3h 56m Phoenix	PHX 17:05 → SLC 19:43DL 1738	10h 38m	98%	85%
American + Unitedtwo ticketsDetails →	PHL 07:00 → LAX 09:52AA 1035	3h 03m Los Angeles	LAX 12:55 → SLC 15:48UA 5371 · flown by SkyWest	10h 48m	97%	85%
Tight connection: often missed
Delta Details →	PHL 05:40 → MSP 07:23DL 2791	47m Minneapolis	MSP 08:10 → SLC 10:04DL 2628	6h 24m	74%	66%
Delta Details →	PHL 16:08 → ATL 18:25DL 2131	1h 00m Atlanta	ATL 19:25 → SLC 21:30DL 660	7h 22m	70%	52%
Delta Details →	PHL 17:22 → DTW 19:09DL 1391	1h 06m Detroit	DTW 20:15 → SLC 22:13DL 2117	6h 51m	73%	46%

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

CLT · 1h 07m · leaves 06:00 4%

IAH · 1h 01m · leaves 06:15 4%

DFW · 1h 02m · leaves 05:00 6%

Afternoon and evening

CLT · 47m · leaves 15:52 30%

DFW · 58m · leaves 15:00 33%

DEN · 58m · leaves 16:14 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.

The table above includes two-ticket connections (marked “two tickets”), held to the 90-minute minimum. One ticket only →

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