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 SLC → EUG flights land within a few points of 94% on time whatever the hour.

Nonstops (seasonal or thin)


Delta	SLC	EUG	2h 00m	94%	0.0%	769	Flying now

Best connections, any airlines

Most reliable Quickest (80%+ on time)

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


Delta + Alaskatwo ticketsDetails →	SLC 15:40 → LAX 16:36DL 841	2h 44m Los Angeles	LAX 19:20 → EUG 21:38AS 3323 · flown by SkyWest	6h 58m	97%	93%
Alaska Details →	SLC 08:20 → PDX 09:26AS 3004 · flown by SkyWest	1h 33m Portland	PDX 10:59 → EUG 11:57AS 3063 · flown by SkyWest	4h 37m	100%	89%
American Details →	SLC 07:13 → PHX 07:57AA 6327 · flown by SkyWest	2h 24m Phoenix	PHX 10:21 → EUG 13:06AA 4114 · flown by Envoy	6h 53m	98%	88%
Delta Details →	SLC 11:35 → SEA 12:52DL 2995	2h 53m Seattle	SEA 15:45 → EUG 17:05DL 4124 · flown by SkyWest	6h 30m	98%	88%
Alaska + Deltatwo ticketsDetails →	SLC 06:23 → SEA 07:35AS 1444	3h 55m Seattle	SEA 11:30 → EUG 12:59DL 4149 · flown by SkyWest	7h 36m	100%	88%
Delta Details →	SLC 17:20 → SEA 18:36DL 871	3h 59m Seattle	SEA 22:35 → EUG 23:51DL 3855 · flown by SkyWest	7h 31m	99%	87%
Alaska Details →	SLC 18:44 → SEA 20:00AS 665	2h 49m Seattle	SEA 22:49 → EUG 23:59AS 2047 · flown by Horizon	6h 15m	94%	85%
Delta + Americantwo ticketsDetails →	SLC 17:25 → PHX 18:07DL 1451	2h 33m Phoenix	PHX 20:40 → EUG 23:21AA 4028 · flown by Envoy	6h 52m	98%	84%
Tight connection: often missed
Alaska Details →	SLC 09:10 → SEA 10:35AS 3381 · flown by SkyWest	1h 02m Seattle	SEA 11:37 → EUG 13:01AS 3360 · flown by SkyWest	4h 51m	58%	48%
American Details →	SLC 18:50 → PHX 19:37AA 4928 · flown by SkyWest	1h 03m Phoenix	PHX 20:40 → EUG 23:21AA 4028 · flown by Envoy	5h 27m	56%	47%
United Details →	SLC 08:30 → DEN 10:27UA 5642 · flown by SkyWest	48m Denver	DEN 11:15 → EUG 12:57UA 318	5h 27m	64%	47%

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

DEN · 48m · leaves 08:30 36%

SEA · 1h 02m · leaves 09:10 42%

Afternoon and evening

PDX · 57m · leaves 19:39 21%

PHX · 1h 03m · leaves 18:50 44%

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.

The table above includes two-ticket connections (marked “two tickets”), held to the 90-minute minimum. One ticket only →

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