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 70-minute layover misses 5% of the time at 7 am and 1 time in 5 at 5 pm.

Nonstops


Alaska	BOI	LAS	1h 58m	85%	0.9%	345	Flying now
Southwest	BOI	LAS	1h 50m	82%	0.3%	1,051	Flying now
Spirit	BOI	LAS	1h 51m	62%few flights	0.0%	39	Not flying now
Allegiant	BOI	LAS	1h 49m	50%few flights	0.0%	14	Not flying now

Best connections, one ticket

Most reliable Quickest (80%+ on time)

Ranked by chance you reach Las Vegas on time. Total trip = scheduled departure to arrival, layover included (Las Vegas is 1 h behind Boise). Layovers up to 4 hours. Pick a connection for the details.


Southwest Details →	BOI 05:18 → PHX 06:22WN 4470	1h 08m Phoenix	PHX 07:30 → LAS 08:40WN 2336	4h 22m	100%	95%
Alaska Details →	BOI 05:57 → PDX 06:17AS 1566	2h 43m Portland	PDX 09:00 → LAS 11:19AS 1628	6h 22m	100%	92%
Southwest Details →	BOI 06:30 → SMF 06:55WN 715	3h 55m Sacramento	SMF 10:50 → LAS 12:20WN 1285	6h 50m	100%	92%
Delta Details →	BOI 06:00 → SLC 07:11DL 2173	1h 14m Salt Lake City	SLC 08:25 → LAS 08:53DL 1698	3h 53m	95%	87%
United Details →	BOI 05:00 → DEN 07:05UA 5924 · flown by SkyWest	1h 00m Denver	DEN 08:05 → LAS 09:07UA 2316	5h 07m	91%	86%
Alaska Details →	BOI 16:27 → SEA 17:06AS 740	3h 09m Seattle	SEA 20:15 → LAS 22:55AS 704	7h 28m	98%	85%
Delta Details →	BOI 06:43 → SEA 07:35DL 3775 · flown by SkyWest	2h 20m Seattle	SEA 09:55 → LAS 12:28DL 2905	6h 45m	100%	85%
Southwest Details →	BOI 07:20 → DEN 09:10WN 698	1h 50m Denver	DEN 11:00 → LAS 11:55WN 1561	5h 35m	100%	83%
Tight connection: often missed
Southwest Details →	BOI 19:20 → SMF 19:45WN 717	1h 00m Sacramento	SMF 20:45 → LAS 22:15WN 3788	3h 55m	70%	46%
Alaska Details →	BOI 10:00 → SEA 10:34AS 2166 · flown by Horizon	57m Seattle	SEA 11:31 → LAS 14:16AS 738	5h 16m	35%	28%
United Details →	BOI 19:05 → SFO 19:58UA 649	1h 17m San Francisco	SFO 21:15 → LAS 23:10UA 406	5h 05m	34%	26%

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

PDX · 1h 20m · leaves 05:57 4%

SEA · 48m · leaves 06:23 5%

SLC · 1h 14m · leaves 06:00 5%

Afternoon and evening

SMF · 1h 00m · leaves 19:20 30%

DEN · 46m · leaves 13:24 31%

SFO · 1h 17m · leaves 19:05 66%

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 2156 BOI 07:04 → SMF Southwest WN 1285 SMF 10:50 → LAS Connection details →	3h 16m	6h 16m	98%	89%
Alaska AS 3131 BOI 07:37 → SJC Southwest WN 2311 SJC 10:20 → LAS Connection details →	1h 48m	5h 13m	98%	86%
Alaska AS 3116 BOI 09:06 → BUR Southwest WN 3124 BUR 12:50 → LAS Connection details →	2h 31m	5h 59m	100%	86%

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