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 → PSC flights land within a few points of 3 in 4 on time whatever the hour.

Nonstops (seasonal or thin)


United	DEN	PSC	2h 37m	76%	0.1%	729	Flying now

Best connections, one ticket

Most reliable Quickest (80%+ on time)

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


United Details →	DEN 05:15 → SFO 06:53UA 2367	2h 22m San Francisco	SFO 09:15 → PSC 11:27UA 4717 · flown by SkyWest	7h 12m	99%	99%
Delta Details →	DEN 07:05 → SLC 08:36DL 1581	3h 47m Salt Lake City	SLC 12:23 → PSC 13:09DL 3892 · flown by SkyWest	7h 06m	97%	86%
Delta Details →	DEN 05:40 → SLC 07:13DL 2544	1h 02m Salt Lake City	SLC 08:15 → PSC 09:06DL 3694 · flown by SkyWest	4h 26m	89%	86%
Alaska Details →	DEN 18:15 → SEA 20:17AS 249	2h 23m Seattle	SEA 22:40 → PSC 23:39AS 2164 · flown by Horizon	6h 24m	94%	86%
Delta Details →	DEN 06:30 → SEA 08:31DL 1731	2h 04m Seattle	SEA 10:35 → PSC 11:48DL 3992 · flown by SkyWest	6h 18m	97%	83%
Delta Details →	DEN 12:45 → SLC 14:18DL 1553	1h 33m Salt Lake City	SLC 15:51 → PSC 16:41DL 3728 · flown by SkyWest	4h 56m	94%	82%
Delta Details →	DEN 19:00 → SLC 20:38DL 2663	2h 37m Salt Lake City	SLC 23:15 → PSC 23:54DL 1712	5h 58m	96%	81%
Alaska Details →	DEN 12:55 → SEA 14:53AS 381	1h 35m Seattle	SEA 16:28 → PSC 17:27AS 2367 · flown by Horizon	5h 32m	94%	77%
Tight connection: often missed
Alaska Details →	DEN 19:05 → PDX 20:50AS 1807	1h 00m Portland	PDX 21:50 → PSC 22:44AS 3066 · flown by SkyWest	4h 39m	58%	48%
United Details →	DEN 19:34 → SFO 21:20UA 1389	1h 20m San Francisco	SFO 22:40 → PSC 00:50 +1UA 6044 · flown by SkyWest	6h 16m	57%	26%

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

SLC · 1h 02m · leaves 05:40 11%

SEA · 47m · leaves 06:02 23%

Afternoon and evening

PDX · 1h 00m · leaves 19:05 42%

SFO · 1h 20m · leaves 19:34 43%

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.


United UA 497 DEN 08:00 → SLC Delta DL 3892 SLC 12:23 → PSC Connection details →	2h 46m	6h 11m	98%	88%
Southwest WN 1731 DEN 11:45 → SLC Delta DL 3728 SLC 15:51 → PSC Connection details →	2h 26m	5h 56m	98%	86%
Alaska AS 643 DEN 06:02 → SEA Delta DL 3992 SEA 10:35 → PSC Connection details →	2h 30m	6h 46m	97%	83%

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