Sun, Oct 4 has passed, so this is the 12-month record.

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 GEG → SJC (2h 10m), on time 82% of the time. Alaska via Seattle (4h 16m) is more reliable, 94%, but takes 2h 06m longer.

Nonstops (seasonal or thin)


Southwest	GEG	SJC	2h 10m	82%	0.4%	238	Flying now

Best connections, one ticket

Most reliable Quickest (80%+ on time)

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


Alaska Details →	GEG 05:07 → SEA 06:15AS 2065 · flown by Horizon	52m Seattle	SEA 07:07 → SJC 09:23AS 1448	4h 16m	96%	94%
Southwest Details →	GEG 05:25 → PHX 08:00WN 1884	1h 40m Phoenix	PHX 09:40 → SJC 11:35WN 3336	6h 10m	97%	93%
Alaska Details →	GEG 05:00 → PDX 06:10AS 710	1h 05m Portland	PDX 07:15 → SJC 09:09AS 2080 · flown by Horizon	4h 09m	98%	90%
Delta Details →	GEG 09:50 → SLC 12:41DL 4444 · flown by SkyWest	2h 30m Salt Lake City	SLC 15:11 → SJC 16:07DL 1260	6h 17m	100%	90%
Delta Details →	GEG 06:20 → LAX 09:16DL 3696 · flown by SkyWest	3h 41m Los Angeles	LAX 12:57 → SJC 14:19DL 3842 · flown by SkyWest	7h 59m	99%	89%
Alaska Details →	GEG 08:31 → PDX 09:46AS 3201 · flown by SkyWest	1h 59m Portland	PDX 11:45 → SJC 13:35AS 1632	5h 04m	100%	88%
Delta Details →	GEG 05:20 → SLC 08:00DL 1440	3h 40m Salt Lake City	SLC 11:40 → SJC 12:38DL 1254	7h 18m	98%	88%
Alaska Details →	GEG 09:06 → SEA 10:18AS 2069 · flown by Horizon	4h 00m Seattle	SEA 14:18 → SJC 16:32AS 1366	7h 26m	99%	88%
Tight connection: often missed
Delta Details →	GEG 09:20 → SEA 10:55DL 3830 · flown by SkyWest	50m Seattle	SEA 11:45 → SJC 14:11DL 3789 · flown by SkyWest	4h 51m	72%	59%
Alaska Details →	GEG 13:26 → SEA 14:40AS 293	1h 02m Seattle	SEA 15:42 → SJC 17:53AS 319	4h 27m	62%	32%
Alaska Details →	GEG 15:16 → PDX 16:32AS 3202 · flown by SkyWest	1h 08m Portland	PDX 17:40 → SJC 19:32AS 2113 · flown by Horizon	4h 16m	22%	18%

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 05m · leaves 05:00 2%

SEA · 52m · leaves 05:07 4%

DFW · 1h 05m · leaves 05:16 7%

Afternoon and evening

MSP · 1h 00m · leaves 12:35 11%

SLC · 51m · leaves 19:08 20%

PDX · 1h 08m · leaves 15:16 78%

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 3736 SEA 08:25 → SJC Connection details →	2h 10m	5h 42m	100%	91%
Alaska AS 1611 GEG 06:20 → LAX Delta DL 3842 LAX 12:57 → SJC Connection details →	3h 52m	7h 59m	100%	89%
Delta DL 3830 GEG 09:20 → SEA Alaska AS 1366 SEA 14:18 → SJC Connection details →	3h 23m	7h 12m	98%	87%

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