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 4 in 5 on time.

Nonstops


Alaska	SEA	FAI	3h 51m	79%	0.4%	1,809	Flying now
Delta	SEA	FAI	3h 55m	78%	2.1%	482	Flying now

Best connections, one ticket

Most reliable Quickest (80%+ on time)

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


Alaska Details →	SEA 23:59 → ANC 02:40AS 1363	3h 35m Anchorage	ANC 06:15 → FAI 07:19 +1AS 457	8h 20m	100%	93%
Alaska Details →	SEA 16:59 → ANC 19:38AS 225	3h 20m Anchorage	ANC 22:58 → FAI 23:59AS 2277 · flown by Horizon	8h 00m	100%	91%
Alaska Details →	SEA 17:59 → PDX 18:56AS 2302 · flown by Horizon	3h 03m Portland	PDX 21:59 → FAI 00:55 +1AS 1521	7h 56m	98%	89%
Alaska Details →	SEA 14:47 → ANC 17:26AS 660	3h 12m Anchorage	ANC 20:38 → FAI 21:42AS 1612	7h 55m	100%	87%
Alaska Details →	SEA 10:14 → ANC 13:00AS 1810	2h 28m Anchorage	ANC 15:28 → FAI 16:31AS 2103 · flown by Horizon	7h 17m	100%	86%
Alaska Details →	SEA 06:03 → ANC 08:40AS 85	1h 37m Anchorage	ANC 10:17 → FAI 11:21AS 466	6h 18m	98%	86%
Alaska Details →	SEA 12:18 → ANC 15:06AS 657	3h 54m Anchorage	ANC 19:00 → FAI 20:01AS 2085 · flown by Horizon	8h 43m	100%	83%
Alaska Details →	SEA 18:46 → ANC 21:25AS 661	2h 15m Anchorage	ANC 23:40 → FAI 00:44 +1AS 2250 · flown by Horizon	6h 58m	96%	82%
Tight connection: often missed
Alaska Details →	SEA 11:39 → ANC 14:27AS 83	1h 01m Anchorage	ANC 15:28 → FAI 16:31AS 2103 · flown by Horizon	5h 52m	73%	62%
United Details →	SEA 14:33 → DEN 18:22UA 333	1h 02m Denver	DEN 19:24 → FAI 22:59UA 250	9h 26m	69%	53%

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.

Afternoon and evening

ANC · 1h 00m · leaves 16:59 23%

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 931 SEA 17:30 → ANC Alaska AS 2277 ANC 22:58 → FAI Connection details →	2h 51m	7h 29m	97%	90%
Delta DL 922 SEA 10:35 → ANC Alaska AS 2103 ANC 15:28 → FAI Connection details →	2h 13m	6h 56m	93%	80%
Delta DL 2768 SEA 07:35 → ANC Alaska AS 1336 ANC 12:20 → FAI Connection details →	2h 00m	6h 49m	95%	79%

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