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

Connect in the morning. The same one-hour layover misses 7% of the time at 9 am and 3 times in 5 at 4 pm.

Nonstops (seasonal or thin)


United	EUG	ORD	4h 10m	61%	1.1%	93	Flying now

Best connections, one ticket

Most reliable Quickest (80%+ on time)

Ranked by chance you reach Chicago on time. Total trip = scheduled departure to arrival, layover included (Chicago is 2 h ahead of Eugene). Layovers up to 4 hours. Pick a connection for the details.


United Details →	EUG 05:00 → DEN 08:37UA 1241	2h 38m Denver	DEN 11:15 → ORD 14:55UA 2865	7h 55m	98%	80%
Alaska Details →	EUG 19:20 → SEA 20:35AS 3048 · flown by SkyWest	3h 42m Seattle	SEA 00:17 → ORD 06:20 +1AS 328	9h 00m	98%	80%
Alaska Details →	EUG 13:38 → SEA 14:55AS 3360 · flown by SkyWest	2h 53m Seattle	SEA 17:48 → ORD 23:59AS 538	8h 21m	96%	77%
Delta Details →	EUG 12:32 → SEA 13:59DL 4139 · flown by SkyWest	3h 41m Seattle	SEA 17:40 → ORD 23:39DL 2108	9h 07m	100%	75%
Alaska Details →	EUG 06:00 → SEA 07:08AS 2046 · flown by Horizon	1h 26m Seattle	SEA 08:34 → ORD 14:46AS 265	6h 46m	98%	75%
Alaska Details →	EUG 05:20 → PDX 06:06AS 2053 · flown by Horizon	54m Portland	PDX 07:00 → ORD 13:13AS 324	5h 53m	98%	72%
United Details →	EUG 18:49 → SFO 20:35UA 4662 · flown by SkyWest	2h 55m San Francisco	SFO 23:30 → ORD 05:57 +1UA 368	9h 08m	86%	71%
Alaska Details →	EUG 09:45 → SEA 10:53AS 2073 · flown by Horizon	2h 17m Seattle	SEA 13:10 → ORD 19:21AS 410	7h 36m	100%	71%
Tight connection: often missed
United Details →	EUG 13:59 → SFO 15:35UA 2077	46m San Francisco	SFO 16:21 → ORD 22:59UA 1482	7h 00m	41%	33%

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 · 54m · leaves 05:20 2%

DEN · 58m · leaves 05:00 7%

PHX · 1h 06m · leaves 06:29 8%

Afternoon and evening

DEN · 1h 17m · leaves 13:07 16%

SFO · 46m · leaves 13:59 59%

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 3048 EUG 19:20 → SEA American AA 2881 SEA 23:56 → ORD Connection details →	3h 21m	8h 42m	98%	90%
Alaska AS 2323 EUG 12:55 → LAX United UA 1754 LAX 18:58 → ORD Connection details →	3h 47m	10h 20m	100%	83%
Delta DL 4139 EUG 12:32 → SEA Alaska AS 538 SEA 17:48 → ORD Connection details →	3h 49m	9h 27m	100%	80%

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