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

No clear winner: airlines and hours on this route all land within a few points of 87% on time.

Nonstops


Delta	ANC	SEA	3h 39m	89%	0.7%	1,614	Flying now
Alaska	ANC	SEA	3h 34m	87%	0.9%	5,000	Flying now
Hawaiian	ANC	SEA	3h 30m	27%	0.0%	62	Not flying now

Best connections, one ticket

Most reliable Quickest (80%+ on time)

Ranked by chance you reach Seattle on time. Total trip = scheduled departure to arrival, layover included (Seattle is 1 h ahead of Anchorage). Layovers up to 4 hours. Pick a connection for the details.


Alaska Details →	ANC 16:21 → JNU 18:03AS 1537	2h 45m Juneau	JNU 20:48 → SEA 00:14 +1AS 445	6h 53m	96%	92%
Alaska Details →	ANC 01:22 → PDX 06:00AS 609	1h 19m Portland	PDX 07:19 → SEA 08:20AS 2420 · flown by Horizon	5h 58m	96%	92%
Alaska Details →	ANC 20:38 → FAI 21:42AS 1612	2h 37m Fairbanks	FAI 00:19 → SEA 05:00 +1AS 1509	7h 22m	100%	90%
Alaska Details →	ANC 11:05 → LAX 17:24AS 56	2h 45m Los Angeles	LAX 20:09 → SEA 22:58AS 614	10h 53m	100%	87%
Alaska Details →	ANC 23:06 → PHX 05:38AS 1550	1h 42m Phoenix	PHX 07:20 → SEA 10:29 +1AS 645	10h 23m	100%	85%
United Details →	ANC 23:09 → DEN 06:26UA 2614	1h 35m Denver	DEN 08:01 → SEA 10:00 +1UA 2271	9h 51m	94%	82%
Alaska Details →	ANC 23:33 → LAX 05:53AS 1563	1h 07m Los Angeles	LAX 07:00 → SEA 09:49 +1AS 748	9h 16m	92%	81%
Alaska Details →	ANC 23:16 → DEN 06:34AS 752	2h 06m Denver	DEN 08:40 → SEA 10:42 +1AS 317	10h 26m	100%	81%
Tight connection: often missed
American Details →	ANC 23:44 → PHX 06:22AA 2991	58m Phoenix	PHX 07:20 → SEA 10:36 +1AA 3793 · flown by Envoy	9h 52m	65%	56%
Delta Details →	ANC 06:00 → MSP 14:24DL 447	51m Minneapolis	MSP 15:15 → SEA 17:00DL 877	10h 00m	75%	55%

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 · 1h 19m · leaves 01:22 4%

LAS · 1h 11m · leaves 23:59 8%

LAX · 1h 07m · leaves 23:33 8%

Afternoon and evening

SFO · 1h 06m · leaves 14:05 8%

PDX · 57m · leaves 11:54 9%

MSP · 1h 07m · leaves 12:35 15%

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 609 ANC 01:22 → PDX Delta DL 3953 PDX 09:30 → SEA Connection details →	3h 30m	8h 33m	100%	84%
Alaska AS 1567 ANC 09:10 → PDX Delta DL 4062 PDX 15:26 → SEA Connection details →	1h 38m	6h 31m	90%	80%
Alaska AS 466 ANC 10:17 → FAI Delta DL 1061 FAI 14:41 → SEA Connection details →	3h 20m	8h 21m	100%	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