Itineraries flown on 20+ days in the Jun 6 – Jul 31, 2026 schedule · each leg’s record Aug 2025 – Jul 2026

No clear winner: United’s DEN → FAI flights land within a few points of 78% on time whatever the hour.

Nonstops (seasonal or thin)


United	DEN	FAI	5h 29m	78%	0.8%	128	Flying now

Best connections, any airlines

Most reliable Quickest (80%+ on time)

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


United + Alaskatwo ticketsDetails →	DEN 15:35 → ANC 19:12UA 1592	3h 46m Anchorage	ANC 22:58 → FAI 23:59AS 2277 · flown by Horizon	10h 24m	100%	94%
Alaska Details →	DEN 18:15 → SEA 20:17AS 249	3h 10m Seattle	SEA 23:27 → FAI 02:15 +1AS 1512	10h 00m	94%	85%
Alaska Details →	DEN 07:20 → ANC 10:56AS 432	1h 24m Anchorage	ANC 12:20 → FAI 13:24AS 1336	8h 04m	100%	82%
Delta Details →	DEN 11:10 → MSP 14:10DL 2849	4h 00m Minneapolis	MSP 18:10 → FAI 20:43DL 1055	11h 33m	98%	76%
Alaska Details →	DEN 12:55 → SEA 14:53AS 381	3h 03m Seattle	SEA 17:56 → FAI 20:46AS 284	9h 51m	100%	75%
Alaska + Deltatwo ticketsDetails →	DEN 06:02 → SEA 08:05AS 643	2h 35m Seattle	SEA 10:40 → FAI 13:35DL 1061	9h 33m	97%	75%
United + Alaskatwo ticketsDetails →	DEN 06:00 → SEA 08:00UA 1482	4h 00m Seattle	SEA 12:00 → FAI 14:55AS 1507	10h 55m	99%	74%
United + Deltatwo ticketsDetails →	DEN 15:58 → SEA 17:59UA 2013	3h 42m Seattle	SEA 21:41 → FAI 00:30 +1DL 2186	10h 32m	97%	74%
Tight connection: often missed
Alaska Details →	DEN 19:05 → PDX 20:50AS 1807	1h 09m Portland	PDX 21:59 → FAI 00:55 +1AS 1521	7h 50m	62%	55%
Delta Details →	DEN 18:41 → SEA 20:44DL 2543	57m Seattle	SEA 21:41 → FAI 00:30 +1DL 2186	7h 49m	50%	37%

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 18m · leaves 08:40 9%

Afternoon and evening

PDX · 1h 09m · leaves 19:05 38%

SEA · 57m · leaves 18:41 50%

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