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

No clear winner: Alaska’s SEA → ACV flights land within a few points of 3 in 4 on time whatever the hour.

Nonstops (seasonal or thin)


Alaska	SEA	ACV	1h 47m	75%	3.5%	115	Flying now

Best connections, one ticket

Most reliable Quickest (80%+ on time)

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


United Details →	SEA 05:00 → DEN 08:43UA 2601	2h 37m Denver	DEN 11:20 → ACV 13:24UA 5506 · flown by SkyWest	8h 24m	99%	80%
United Details →	SEA 05:15 → SFO 07:35UA 5676 · flown by SkyWest	2h 40m San Francisco	SFO 10:15 → ACV 11:42UA 4708 · flown by SkyWest	6h 27m	99%	70%
United Details →	SEA 15:33 → SFO 17:47UA 2866	3h 35m San Francisco	SFO 21:22 → ACV 22:51UA 5626 · flown by SkyWest	7h 18m	95%	69%
United Details →	SEA 17:20 → SFO 19:37UA 2164	2h 58m San Francisco	SFO 22:35 → ACV 23:59UA 4695 · flown by SkyWest	6h 39m	96%	69%
United Details →	SEA 10:29 → SFO 12:47UA 1482	3h 44m San Francisco	SFO 16:31 → ACV 18:03UA 5480 · flown by SkyWest	7h 34m	98%	68%
Tight connection: often missed
United Details →	SEA 19:05 → SFO 21:21UA 2241	1h 14m San Francisco	SFO 22:35 → ACV 23:59UA 4695 · flown by SkyWest	4h 54m	34%	24%
United Details →	SEA 07:00 → SFO 09:18UA 1578	57m San Francisco	SFO 10:15 → ACV 11:42UA 4708 · flown by SkyWest	4h 42m	11%	8%

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 505 SEA 06:03 → LAX United UA 5384 LAX 12:45 → ACV Connection details →	3h 58m	8h 45m	100%	87%
Alaska AS 696 SEA 13:38 → LAX United UA 5441 LAX 20:15 → ACV Connection details →	3h 50m	8h 40m	100%	82%
Southwest WN 3615 SEA 05:15 → DEN United UA 5506 DEN 11:20 → ACV Connection details →	2h 30m	8h 09m	96%	78%

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