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

The nonstop is quickest: United DEN → RDM (2h 38m), on time 73% of the time. Alaska via Portland (4h 47m) is more reliable, 84%, but takes 2h 09m longer.

Nonstops (seasonal or thin)


United	DEN	RDM	2h 38m	74%	0.3%	727	Flying now

Best connections, any airlines

Most reliable Quickest (80%+ on time)

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


Southwest + Alaskatwo ticketsDetails →	DEN 09:35 → PDX 11:10WN 1667	3h 20m Portland	PDX 14:30 → RDM 15:20AS 2173 · flown by Horizon	6h 45m	100%	96%
United Details →	DEN 05:15 → SFO 06:53UA 2367	3h 35m San Francisco	SFO 10:28 → RDM 12:12UA 2153	7h 57m	99%	90%
Frontier + Deltatwo ticketsDetails →	DEN 06:00 → SLC 07:31F9 3219	3h 14m Salt Lake City	SLC 10:45 → RDM 11:44DL 3727 · flown by SkyWest	6h 44m	98%	89%
United + Deltatwo ticketsDetails →	DEN 17:45 → SLC 19:25UA 5762 · flown by SkyWest	3h 40m Salt Lake City	SLC 23:05 → RDM 23:58DL 3756 · flown by SkyWest	7h 11m	96%	89%
Southwest + Deltatwo ticketsDetails →	DEN 12:30 → SEA 14:25WN 4130	3h 01m Seattle	SEA 17:26 → RDM 18:45DL 4141 · flown by SkyWest	7h 15m	100%	88%
American + Alaskatwo ticketsDetails →	DEN 11:44 → LAX 13:19AA 4957 · flown by SkyWest	2h 34m Los Angeles	LAX 15:53 → RDM 18:09AS 3071 · flown by SkyWest	7h 25m	99%	87%
Alaska + Deltatwo ticketsDetails →	DEN 06:02 → SEA 08:05AS 643	3h 14m Seattle	SEA 11:19 → RDM 12:45DL 3735 · flown by SkyWest	7h 43m	98%	86%
United + Deltatwo ticketsDetails →	DEN 15:58 → SEA 17:59UA 2013	3h 36m Seattle	SEA 21:35 → RDM 22:58DL 4047 · flown by SkyWest	8h 00m	97%	86%
Tight connection: often missed
Alaska Details →	DEN 19:05 → PDX 20:50AS 1807	1h 05m Portland	PDX 21:55 → RDM 22:45AS 2057 · flown by Horizon	4h 40m	60%	53%
Delta Details →	DEN 18:41 → SEA 20:44DL 2543	51m Seattle	SEA 21:35 → RDM 22:58DL 4047 · flown by SkyWest	5h 17m	39%	34%

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 14m · leaves 08:40 10%

PDX · 59m · leaves 08:00 12%

SFO · 1h 10m · leaves 07:40 20%

Afternoon and evening

PDX · 1h 05m · leaves 19:05 40%

SEA · 51m · leaves 18:41 61%

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