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 82% on time.

Nonstops (seasonal or thin)


Alaska	ANC	DEN	5h 18m	89%	0.0%	128	Flying now
United	ANC	DEN	5h 17m	84%	1.4%	589	Flying now
Southwest	ANC	DEN	5h 10m	59%	0.0%	78	Flying now

Best connections, one ticket

Most reliable Quickest (80%+ on time)

Ranked by chance you reach Denver on time. Total trip = scheduled departure to arrival, layover included (Denver is 2 h ahead of Anchorage). Layovers up to 4 hours. Pick a connection for the details.


Alaska Details →	ANC 01:22 → PDX 06:00AS 609	1h 20m Portland	PDX 07:20 → DEN 11:03AS 401	7h 41m	96%	94%
United Details →	ANC 20:15 → IAD 07:12UA 572	3h 01m Dulles	IAD 10:13 → DEN 12:05 +1UA 1865	13h 50m	98%	92%
United Details →	ANC 20:00 → ORD 05:18UA 450	3h 22m Chicago	ORD 08:40 → DEN 10:31 +1UA 526	12h 31m	99%	89%
United Details →	ANC 23:59 → ORD 09:19UA 834	1h 35m Chicago	ORD 10:54 → DEN 12:45 +1UA 581	10h 46m	93%	88%
Southwest Details →	ANC 23:55 → LAS 06:00WN 4112	2h 55m Las Vegas	LAS 08:55 → DEN 11:50 +1WN 247	9h 55m	98%	87%
Alaska Details →	ANC 00:29 → SEA 05:00AS 221	3h 04m Seattle	SEA 08:04 → DEN 11:56AS 375	9h 27m	100%	87%
Delta Details →	ANC 00:35 → SLC 07:15DL 2223	3h 00m Salt Lake City	SLC 10:15 → DEN 11:53DL 1553	9h 18m	100%	84%
American Details →	ANC 23:44 → PHX 06:22AA 2991	2h 10m Phoenix	PHX 08:32 → DEN 11:29 +1AA 1757	9h 43m	93%	83%
Tight connection: often missed
American Details →	ANC 20:17 → DFW 05:47AA 1355	1h 17m Dallas-Fort Worth	DFW 07:04 → DEN 08:08 +1AA 1523	9h 50m	73%	59%

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 20m · leaves 01:22 4%

SEA · 1h 09m · leaves 06:00 9%

IAH · 1h 07m · leaves 22:29 12%

Afternoon and evening

SFO · 1h 12m · leaves 14:05 8%

SEA · 1h 09m · leaves 14:10 8%

MSP · 1h 14m · leaves 12:35 10%

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.


American AA 1354 ANC 21:57 → ORD United UA 581 ORD 10:54 → DEN Connection details →	3h 35m	12h 48m	100%	96%
Alaska AS 609 ANC 01:22 → PDX United UA 2375 PDX 08:50 → DEN Connection details →	2h 50m	9h 02m	98%	95%
Alaska AS 1636 ANC 23:59 → LAS United UA 1315 LAS 09:37 → DEN Connection details →	3h 26m	10h 42m	100%	93%

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