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 SJC → EUG (1h 40m), on time 3 times in 4. Alaska via Portland (3h 57m) is more reliable, 89%, but takes 2h 17m longer.

Nonstops (seasonal or thin)


Southwest	SJC	EUG	1h 40m	74%	0.0%	262	Flying now

Best connections, one ticket

Most reliable Quickest (80%+ on time)

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


Delta Details →	SJC 17:01 → SLC 19:57DL 1260	2h 58m Salt Lake City	SLC 22:55 → EUG 23:55DL 3721 · flown by SkyWest	6h 54m	99%	93%
Delta Details →	SJC 06:00 → SLC 08:55DL 1314	1h 50m Salt Lake City	SLC 10:45 → EUG 11:52DL 4135 · flown by SkyWest	5h 52m	98%	90%
Alaska Details →	SJC 08:00 → PDX 09:44AS 679	1h 15m Portland	PDX 10:59 → EUG 11:57AS 3063 · flown by SkyWest	3h 57m	100%	89%
Alaska Details →	SJC 17:28 → SEA 19:39AS 1413	3h 10m Seattle	SEA 22:49 → EUG 23:59AS 2047 · flown by Horizon	6h 31m	97%	88%
Delta Details →	SJC 09:45 → SLC 12:48DL 4026 · flown by SkyWest	2h 14m Salt Lake City	SLC 15:02 → EUG 16:02DL 4105 · flown by SkyWest	6h 17m	98%	87%
Delta Details →	SJC 17:55 → SEA 20:13DL 3897 · flown by SkyWest	2h 22m Seattle	SEA 22:35 → EUG 23:51DL 3855 · flown by SkyWest	5h 56m	99%	87%
American Details →	SJC 06:01 → PHX 08:05AA 1694	2h 16m Phoenix	PHX 10:21 → EUG 13:06AA 4114 · flown by Envoy	7h 05m	97%	87%
Delta Details →	SJC 11:29 → SEA 13:59DL 3736 · flown by SkyWest	1h 46m Seattle	SEA 15:45 → EUG 17:05DL 4124 · flown by SkyWest	5h 36m	96%	87%
Tight connection: often missed
Alaska Details →	SJC 08:20 → SEA 10:31AS 1426	1h 06m Seattle	SEA 11:37 → EUG 13:01AS 3360 · flown by SkyWest	4h 41m	45%	37%

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 15m · leaves 08:00 0%

LAS · 1h 20m · leaves 09:10 2%

SEA · 1h 06m · leaves 08:20 55%

Afternoon and evening

PDX · 1h 11m · leaves 18:37 16%

SEA · 1h 13m · leaves 14:16 17%

SLC · 48m · leaves 19:10 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.


Delta DL 3842 SJC 14:59 → LAX Alaska AS 3323 LAX 19:20 → EUG Connection details →	2h 53m	6h 39m	98%	94%
Southwest WN 3186 SJC 06:25 → PHX American AA 4114 PHX 10:21 → EUG Connection details →	2h 01m	6h 41m	100%	90%
Southwest WN 3693 SJC 06:30 → PDX Alaska AS 3063 PDX 10:59 → EUG Connection details →	2h 41m	5h 27m	100%	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