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 50-minute layover misses 6% of the time at 6 am and 1 time in 4 at 8 pm.

Nonstops


Alaska	GEG	BOI	1h 09m	90%	1.6%	1,321	Flying now

Best connections, one ticket

Most reliable Quickest (80%+ on time)

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


Alaska Details →	GEG 05:00 → PDX 06:10AS 710	50m Portland	PDX 07:00 → BOI 09:19AS 2161 · flown by Horizon	3h 19m	94%	90%
Delta Details →	GEG 05:20 → SLC 08:00DL 1440	3h 00m Salt Lake City	SLC 11:00 → BOI 12:15DL 1442	5h 57m	98%	90%
Delta Details →	GEG 05:30 → SEA 06:40DL 2218	1h 55m Seattle	SEA 08:35 → BOI 11:15DL 3678 · flown by SkyWest	4h 45m	97%	87%
Alaska Details →	GEG 11:40 → SEA 12:50AS 2262 · flown by Horizon	2h 55m Seattle	SEA 15:45 → BOI 18:11AS 2061 · flown by Horizon	5h 31m	100%	87%
Alaska Details →	GEG 05:07 → SEA 06:15AS 2065 · flown by Horizon	52m Seattle	SEA 07:07 → BOI 09:40AS 248	3h 33m	96%	86%
Delta Details →	GEG 09:20 → SEA 10:55DL 3830 · flown by SkyWest	3h 59m Seattle	SEA 14:54 → BOI 17:30DL 4127 · flown by SkyWest	7h 10m	99%	86%
Delta Details →	GEG 09:50 → SLC 12:41DL 4444 · flown by SkyWest	3h 54m Salt Lake City	SLC 16:35 → BOI 17:51DL 2920	7h 02m	100%	86%
Delta Details →	GEG 11:15 → SEA 12:43DL 3824 · flown by SkyWest	3h 52m Seattle	SEA 16:35 → BOI 19:13DL 3688 · flown by SkyWest	6h 56m	100%	85%
Tight connection: often missed
Alaska Details →	GEG 13:26 → SEA 14:40AS 293	1h 05m Seattle	SEA 15:45 → BOI 18:11AS 2061 · flown by Horizon	3h 45m	63%	57%
Southwest Details →	GEG 13:30 → SJC 15:40WN 443	55m San Jose	SJC 16:35 → BOI 19:05WN 943	4h 35m	69%	18%
Alaska Details →	GEG 15:16 → PDX 16:32AS 3202 · flown by SkyWest	59m Portland	PDX 17:31 → BOI 19:48AS 2104 · flown by Horizon	3h 32m	17%	12%

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

SEA · 52m · leaves 05:07 4%

PDX · 50m · leaves 05:00 6%

PHX · 59m · leaves 06:30 8%

Afternoon and evening

SLC · 47m · leaves 17:10 24%

PDX · 59m · leaves 15:16 83%

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 2065 GEG 05:07 → SEA Delta DL 3678 SEA 08:35 → BOI Connection details →	2h 20m	5h 08m	100%	91%
Delta DL 3824 GEG 11:15 → SEA Alaska AS 2061 SEA 15:45 → BOI Connection details →	3h 02m	5h 56m	97%	87%
Alaska AS 364 GEG 07:23 → SEA Delta DL 3959 SEA 12:30 → BOI Connection details →	3h 56m	6h 49m	94%	83%

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