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

No clear winner: United’s ORD → EUG flights land within a few points of 86% on time whatever the hour.

Nonstops (seasonal or thin)


United	ORD	EUG	4h 45m	86%	0.0%	93	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 2 h behind Chicago). Layovers up to 4 hours. Pick a connection for the details.


United + Alaskatwo ticketsDetails →	ORD 13:00 → LAX 15:34UA 1363	3h 46m Los Angeles	LAX 19:20 → EUG 21:38AS 3323 · flown by SkyWest	10h 38m	96%	91%
United + Alaskatwo ticketsDetails →	ORD 16:20 → SEA 19:06UA 1801	3h 43m Seattle	SEA 22:49 → EUG 23:59AS 2047 · flown by Horizon	9h 39m	98%	88%
American Details →	ORD 05:00 → PHX 06:32AA 2434	3h 49m Phoenix	PHX 10:21 → EUG 13:06AA 4114 · flown by Envoy	10h 06m	99%	87%
United + Deltatwo ticketsDetails →	ORD 08:55 → SLC 11:39UA 1972	3h 23m Salt Lake City	SLC 15:02 → EUG 16:02DL 4105 · flown by SkyWest	9h 07m	99%	87%
American + Alaskatwo ticketsDetails →	ORD 08:00 → PDX 10:32AA 2284	3h 58m Portland	PDX 14:30 → EUG 15:23AS 3042 · flown by SkyWest	9h 23m	99%	86%
Alaska + Deltatwo ticketsDetails →	ORD 06:00 → SEA 08:38AS 715	2h 52m Seattle	SEA 11:30 → EUG 12:59DL 4149 · flown by SkyWest	8h 59m	97%	84%
Delta Details →	ORD 17:55 → SEA 20:34DL 637	2h 01m Seattle	SEA 22:35 → EUG 23:51DL 3855 · flown by SkyWest	7h 56m	95%	82%
American Details →	ORD 15:22 → PHX 17:05AA 2624	3h 35m Phoenix	PHX 20:40 → EUG 23:21AA 4028 · flown by Envoy	9h 55m	96%	82%
Tight connection: often missed
American Details →	ORD 17:34 → PHX 19:19AA 3261	1h 21m Phoenix	PHX 20:40 → EUG 23:21AA 4028 · flown by Envoy	7h 43m	67%	57%
Alaska Details →	ORD 08:02 → SEA 10:37AS 587	1h 00m Seattle	SEA 11:37 → EUG 13:01AS 3360 · flown by SkyWest	6h 59m	64%	53%
United Details →	ORD 16:12 → DEN 18:13UA 2769	1h 22m Denver	DEN 19:35 → EUG 21:21UA 1303	7h 09m	69%	52%

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

PHX · 1h 12m · leaves 07:25 10%

PDX · 1h 14m · leaves 07:20 11%

SEA · 1h 00m · leaves 08:02 36%

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