Itineraries flown on 20+ days in the Jun 6 – Jul 31, 2026 schedule · each leg’s record Aug 2025 – Jul 2026

No clear winner: Delta’s EUG → SLC flights land within a few points of 93% on time whatever the hour.

Nonstops (seasonal or thin)


Delta	EUG	SLC	1h 58m	93%	0.0%	769	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 (Salt Lake City is 1 h ahead of Eugene). Layovers up to 4 hours. Pick a connection for the details.


Southwest Details →	EUG 05:10 → SMF 06:30WN 1840	1h 35m Sacramento	SMF 08:05 → SLC 10:40WN 3827	4h 30m	94%	89%
United Details →	EUG 06:00 → SFO 07:35UA 335	1h 05m San Francisco	SFO 08:40 → SLC 11:49UA 5605 · flown by SkyWest	4h 49m	95%	89%
Alaska Details →	EUG 05:20 → PDX 06:06AS 2053 · flown by Horizon	1h 46m Portland	PDX 07:52 → SLC 10:45AS 2333 · flown by Horizon	4h 25m	98%	89%
Alaska Details →	EUG 12:34 → PDX 13:26AS 3062 · flown by SkyWest	1h 04m Portland	PDX 14:30 → SLC 17:29AS 3120 · flown by SkyWest	3h 55m	91%	88%
Delta Details →	EUG 06:13 → SEA 07:40DL 4128 · flown by SkyWest	1h 50m Seattle	SEA 09:30 → SLC 12:38DL 1016	5h 25m	98%	87%
Alaska Details →	EUG 06:00 → SEA 07:08AS 2046 · flown by Horizon	1h 40m Seattle	SEA 08:48 → SLC 11:55AS 360	4h 55m	98%	87%
Delta Details →	EUG 12:32 → SEA 13:59DL 4139 · flown by SkyWest	4h 00m Seattle	SEA 17:59 → SLC 21:09DL 1165	7h 37m	100%	80%
United Details →	EUG 05:00 → DEN 08:37UA 1241	3h 03m Denver	DEN 11:40 → SLC 13:13UA 1963	7h 13m	99%	78%
Tight connection: often missed
Alaska Details →	EUG 09:45 → SEA 10:53AS 2073 · flown by Horizon	58m Seattle	SEA 11:51 → SLC 15:04AS 733	4h 19m	62%	42%
Southwest Details →	EUG 16:55 → LAS 18:55WN 4267	50m Las Vegas	LAS 19:45 → SLC 22:12WN 4225	4h 15m	12%	5%

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

SFO · 1h 05m · leaves 06:00 5%

Afternoon and evening

PDX · 49m · leaves 16:00 22%

DEN · 1h 02m · leaves 13:07 24%

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.


Southwest WN 1840 EUG 05:10 → SMF Delta DL 1367 SMF 09:45 → SLC Connection details →	3h 15m	6h 16m	97%	88%
Alaska AS 2046 EUG 06:00 → SEA Delta DL 1016 SEA 09:30 → SLC Connection details →	2h 22m	5h 38m	98%	88%
Alaska AS 3324 EUG 08:18 → LAX United UA 5371 LAX 12:55 → SLC Connection details →	2h 10m	6h 30m	99%	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