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 7 am and 1 time in 5 at 8 pm.

Nonstops


Delta	BIL	SLC	1h 36m	92%	0.6%	1,074	Flying now

Best connections, one ticket

Most reliable Quickest (80%+ on time)

Ranked by chance you reach Salt Lake City on time. Total trip = scheduled departure to arrival, layover included. Layovers up to 4 hours. Pick a connection for the details.


Delta Details →	BIL 06:24 → MSP 09:30DL 2254	2h 59m Minneapolis	MSP 12:29 → SLC 14:22DL 2651	7h 58m	99%	87%
United Details →	BIL 05:00 → DEN 06:53UA 5829 · flown by SkyWest	1h 07m Denver	DEN 08:00 → SLC 09:37UA 497	4h 37m	96%	86%
Alaska Details →	BIL 06:00 → SEA 07:12AS 2247 · flown by Horizon	1h 36m Seattle	SEA 08:48 → SLC 11:55AS 360	5h 55m	96%	85%
United Details →	BIL 10:40 → DEN 12:33UA 5463 · flown by SkyWest	1h 07m Denver	DEN 13:40 → SLC 15:13UA 1840	4h 33m	99%	83%
Alaska Details →	BIL 13:45 → SEA 14:55AS 2055 · flown by Horizon	1h 52m Seattle	SEA 16:47 → SLC 19:50AS 373	6h 05m	96%	77%
Alaska Details →	BIL 15:43 → PDX 16:46AS 2297 · flown by Horizon	54m Portland	PDX 17:40 → SLC 20:41AS 3291 · flown by SkyWest	4h 58m	92%	73%
United Details →	BIL 07:00 → DEN 08:50UA 557	2h 50m Denver	DEN 11:40 → SLC 13:13UA 1963	6h 13m	92%	71%
United Details →	BIL 16:10 → DEN 18:03UA 5590 · flown by SkyWest	3h 02m Denver	DEN 21:05 → SLC 22:44UA 5646 · flown by SkyWest	6h 34m	82%	66%
Tight connection: often missed
United Details →	BIL 16:10 → DEN 18:03UA 5590 · flown by SkyWest	1h 20m Denver	DEN 19:23 → SLC 20:56UA 2769	4h 46m	61%	32%

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 05:00 4%

Afternoon and evening

PDX · 54m · leaves 15:43 8%

DEN · 1h 13m · leaves 18:00 21%

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.


Alaska AS 2247 BIL 06:00 → SEA Delta DL 1016 SEA 09:30 → SLC Connection details →	2h 18m	6h 38m	96%	86%
United UA 5463 BIL 10:40 → DEN Delta DL 1623 DEN 15:55 → SLC Connection details →	3h 22m	6h 55m	100%	83%
Alaska AS 2297 BIL 15:43 → PDX Delta DL 1238 PDX 19:20 → SLC Connection details →	2h 34m	6h 30m	96%	81%

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