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

The nonstop is quickest: Southwest SLC → DAL (2h 35m), on time 78% of the time. Southwest via Phoenix (5h 25m) is more reliable, 90%, but takes 2h 50m longer.

Nonstops (seasonal or thin)


Southwest	SLC	DAL	2h 35m	79%	1.2%	674	Flying now

Best connections, one ticket

Most reliable Quickest (80%+ on time)

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


Southwest Details →	SLC 06:15 → PHX 06:55WN 3751	1h 20m Phoenix	PHX 08:15 → DAL 12:40WN 875	5h 25m	96%	90%
Delta Details →	SLC 07:00 → ATL 12:44DL 907	1h 15m Atlanta	ATL 13:59 → DAL 15:03DL 512	7h 12m	98%	82%
Southwest Details →	SLC 06:25 → LAS 06:50WN 4205	3h 48m Las Vegas	LAS 10:38 → DAL 15:25WN 2218	8h 01m	100%	82%
Delta Details →	SLC 13:35 → ATL 19:23DL 906	1h 52m Atlanta	ATL 21:15 → DAL 22:34DL 1104	7h 59m	95%	75%
Southwest Details →	SLC 05:42 → DEN 07:08WN 3737	2h 57m Denver	DEN 10:05 → DAL 13:10WN 1518	6h 28m	100%	72%
Southwest Details →	SLC 06:05 → AUS 09:45WN 4932	2h 25m Austin	AUS 12:10 → DAL 13:15WN 910	6h 10m	100%	71%
Southwest Details →	SLC 23:35 → BWI 05:40WN 3735	1h 10m Baltimore	BWI 06:50 → DAL 08:55 +1WN 4403	8h 20m	86%	71%
Southwest Details →	SLC 14:50 → LAS 15:15WN 4338	2h 05m Las Vegas	LAS 17:20 → DAL 22:10WN 2220	6h 20m	100%	71%
Tight connection: often missed
Southwest Details →	SLC 09:55 → HOU 14:00WN 452	1h 00m Houston	HOU 15:00 → DAL 16:10WN 36	5h 15m	69%	52%
Southwest Details →	SLC 16:45 → DEN 18:15WN 3740	50m Denver	DEN 19:05 → DAL 22:05WN 1522	4h 20m	18%	4%

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

LAS · 1h 00m · leaves 06:25 0%

PHX · 1h 20m · leaves 06:15 4%

BWI · 1h 10m · leaves 23:35 14%

Afternoon and evening

ATL · 57m · leaves 09:55 17%

LAS · 1h 15m · leaves 14:50 21%

DEN · 50m · leaves 16:45 82%

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 3681 SLC 07:55 → BUR Southwest WN 2921 BUR 11:45 → DAL Connection details →	2h 41m	7h 55m	98%	78%
Delta DL 1698 SLC 08:25 → LAS Southwest WN 2218 LAS 10:38 → DAL Connection details →	1h 45m	6h 01m	94%	76%
United UA 5683 SLC 05:15 → DEN Southwest WN 1518 DEN 10:05 → DAL Connection details →	3h 11m	6h 55m	98%	72%

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