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 1 time in 10 at 9 am and 1 time in 3 at 5 pm.

Nonstops (seasonal or thin)


Alaska	SEA	SIT	2h 33m	72%	0.0%	243	Flying now

Best connections, any airlines

Most reliable Quickest (80%+ on time)

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


Delta + Alaskatwo ticketsDetails →	SEA 16:45 → JNU 18:19DL 2169	3h 59m Juneau	JNU 22:18 → SIT 22:59AS 70	7h 14m	100%	82%
Alaska Details →	SEA 07:08 → JNU 08:44AS 61	1h 11m Juneau	JNU 09:55 → SIT 10:40AS 62	4h 32m	91%	76%
Alaska Details →	SEA 13:54 → KTN 15:02AS 92	2h 37m Ketchikan	KTN 17:39 → SIT 18:32AS 67	5h 38m	99%	70%
Tight connection: often missed
Alaska Details →	SEA 19:50 → JNU 21:22AS 1559	56m Juneau	JNU 22:18 → SIT 22:59AS 70	4h 09m	65%	54%
Alaska Details →	SEA 15:37 → KTN 16:43AS 67	56m Ketchikan	KTN 17:39 → SIT 18:32AS 67	3h 55m	68%	48%

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

JNU · 1h 11m · leaves 07:08 9%

Afternoon and evening

KTN · 56m · leaves 15:37 32%

JNU · 56m · leaves 19:50 35%

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