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 9 am and 22% of the time at 5 pm.

Nonstops (seasonal or thin)


Delta	SLC	RDU	4h 04m	89%	1.3%	383	Flying now

Best connections, one ticket

Most reliable Quickest (80%+ on time)

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


Southwest Details →	SLC 23:35 → BWI 05:40WN 3735	2h 30m Baltimore	BWI 08:10 → RDU 09:30 +1WN 1067	7h 55m	100%	100%
Delta Details →	SLC 23:35 → ATL 05:15DL 912	3h 28m Atlanta	ATL 08:43 → RDU 10:10 +1DL 1699	8h 35m	100%	91%
Delta Details →	SLC 23:36 → TPA 05:45DL 2077	3h 28m Tampa	TPA 09:13 → RDU 11:03 +1DL 1279	9h 27m	99%	89%
United Details →	SLC 05:15 → DEN 06:54UA 5683 · flown by SkyWest	2h 55m Denver	DEN 09:49 → RDU 15:16UA 2269	8h 01m	99%	88%
American Details →	SLC 23:25 → CLT 05:22AA 2611	1h 44m Charlotte	CLT 07:06 → RDU 08:04 +1AA 2362	6h 39m	91%	86%
American Details →	SLC 23:56 → MIA 06:32AA 3070	1h 33m Miami	MIA 08:05 → RDU 10:20 +1AA 2405	8h 24m	94%	85%
Delta Details →	SLC 23:31 → BOS 06:05DL 696	3h 55m Boston	BOS 10:00 → RDU 12:04 +1DL 2118	10h 33m	100%	84%
Delta Details →	SLC 23:50 → DTW 05:19DL 2841	1h 46m Detroit	DTW 07:05 → RDU 08:48 +1DL 1427	6h 58m	91%	83%
Tight connection: often missed
American Details →	SLC 13:57 → MIA 20:52AA 483	55m Miami	MIA 21:47 → RDU 23:59AA 1286	8h 02m	65%	40%
Southwest Details →	SLC 14:05 → MDW 18:05WN 3750	50m Chicago	MDW 18:55 → RDU 21:45WN 4221	5h 45m	40%	17%
Southwest Details →	SLC 16:45 → DEN 18:15WN 3740	1h 05m Denver	DEN 19:20 → RDU 00:40 +1WN 1692	5h 55m	47%	11%

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 07m · leaves 07:00 4%

IAH · 1h 06m · leaves 06:45 6%

PHX · 1h 00m · leaves 07:13 9%

Afternoon and evening

MIA · 55m · leaves 13:57 35%

DEN · 1h 05m · leaves 16:45 53%

MDW · 50m · leaves 14:05 60%

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 2079 SLC 23:40 → BWI Southwest WN 1067 BWI 08:10 → RDU Connection details →	2h 21m	7h 50m	97%	96%
Delta DL 2069 SLC 23:36 → MCO Southwest WN 684 MCO 08:20 → RDU Connection details →	2h 20m	8h 29m	96%	90%
Delta DL 2038 SLC 23:38 → EWR United UA 3631 EWR 10:00 → RDU Connection details →	4h 00m	10h 14m	99%	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