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 JNU → ANC flights land within a few points of 84% on time whatever the hour.

Nonstops


Alaska	JNU	ANC	1h 46m	84%	2.9%	1,230	Flying now

Best connections, one ticket

Most reliable Quickest (80%+ on time)

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


Alaska Details →	JNU 18:31 → SEA 21:57AS 66	2h 02m Seattle	SEA 23:59 → ANC 02:40 +1AS 1363	8h 09m	96%	82%
Alaska Details →	JNU 05:03 → SEA 08:26AS 1554	2h 33m Seattle	SEA 10:59 → ANC 13:41AS 433	8h 38m	100%	78%
Delta Details →	JNU 07:25 → SEA 11:03DL 1605	2h 27m Seattle	SEA 13:30 → ANC 16:15DL 928	8h 50m	100%	73%
Alaska Details →	JNU 12:30 → SEA 15:56AS 446	3h 47m Seattle	SEA 19:43 → ANC 22:22AS 663	9h 52m	100%	73%
Alaska Details →	JNU 07:00 → SEA 10:29AS 1533	1h 49m Seattle	SEA 12:18 → ANC 15:06AS 657	8h 06m	90%	69%
Alaska Details →	JNU 13:54 → SEA 17:20AS 456	3h 05m Seattle	SEA 20:25 → ANC 23:08AS 667	9h 14m	100%	68%
Tight connection: often missed
Alaska Details →	JNU 12:30 → SEA 15:56AS 446	1h 03m Seattle	SEA 16:59 → ANC 19:38AS 225	7h 08m	73%	56%

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

SEA · 1h 10m · leaves 07:00 10%

Afternoon and evening

SEA · 1h 03m · leaves 12:30 27%

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.


Delta DL 1605 JNU 07:25 → SEA Alaska AS 660 SEA 14:47 → ANC Connection details →	3h 44m	10h 01m	100%	82%
Alaska AS 1554 JNU 05:03 → SEA Delta DL 922 SEA 10:35 → ANC Connection details →	2h 09m	8h 12m	98%	78%
Alaska AS 1533 JNU 07:00 → SEA Delta DL 928 SEA 13:30 → ANC Connection details →	3h 01m	9h 15m	96%	70%

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