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 70-minute layover misses 6% of the time at 8 am and 29% of the time at 7 pm.

Nonstops (seasonal or thin)


Alaska	DEN	ANC	5h 38m	84%	0.0%	128	Flying now
United	DEN	ANC	5h 42m	80%	0.0%	589	Flying now
Southwest	DEN	ANC	5h 35m	44%	0.0%	78	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 (Anchorage is 2 h behind Denver). Layovers up to 4 hours. Pick a connection for the details.


United Details →	DEN 13:25 → SFO 15:09UA 1812	3h 38m San Francisco	SFO 18:47 → ANC 22:46UA 1594	11h 21m	98%	87%
United Details →	DEN 07:42 → IAH 11:15UA 1720	3h 05m Houston	IAH 14:20 → ANC 18:41UA 2369	12h 59m	100%	87%
Alaska Details →	DEN 18:15 → SEA 20:17AS 249	3h 42m Seattle	SEA 23:59 → ANC 02:40 +1AS 1363	10h 25m	98%	85%
United Details →	DEN 06:00 → EWR 11:49UA 2345	3h 39m Newark	EWR 15:28 → ANC 19:12UA 450	15h 12m	100%	83%
Alaska Details →	DEN 06:02 → SEA 08:05AS 643	2h 54m Seattle	SEA 10:59 → ANC 13:41AS 433	9h 39m	98%	76%
Delta Details →	DEN 06:30 → SEA 08:31DL 1731	2h 04m Seattle	SEA 10:35 → ANC 13:15DL 922	8h 45m	97%	76%
Delta Details →	DEN 13:15 → SEA 15:23DL 1358	2h 07m Seattle	SEA 17:30 → ANC 20:07DL 931	8h 52m	97%	75%
Alaska Details →	DEN 12:55 → SEA 14:53AS 381	2h 06m Seattle	SEA 16:59 → ANC 19:38AS 225	8h 43m	98%	75%
Tight connection: often missed
Alaska Details →	DEN 16:36 → SEA 18:38AS 535	1h 05m Seattle	SEA 19:43 → ANC 22:22AS 663	7h 46m	71%	51%
Alaska Details →	DEN 18:15 → SEA 20:17AS 249	58m Seattle	SEA 21:15 → ANC 23:55AS 771	7h 40m	55%	37%
American Details →	DEN 10:38 → DFW 13:40AA 1756	1h 00m Dallas-Fort Worth	DFW 14:40 → ANC 18:32AA 1355	9h 54m	69%	36%

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 16m · leaves 06:02 6%

Afternoon and evening

SFO · 1h 17m · leaves 15:47 18%

SEA · 58m · leaves 18:15 45%

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.


Southwest WN 4271 DEN 12:20 → PDX Alaska AS 271 PDX 17:50 → ANC Connection details →	3h 55m	10h 18m	100%	90%
Frontier F9 3206 DEN 07:00 → IAH United UA 2369 IAH 14:20 → ANC Connection details →	3h 38m	13h 41m	99%	86%
Southwest WN 1667 DEN 09:35 → PDX Alaska AS 1565 PDX 14:30 → ANC Connection details →	3h 20m	9h 41m	100%	85%

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