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

No clear winner: Alaska’s SEA → STS flights land within a few points of 84% on time whatever the hour.

Nonstops (seasonal or thin)


Alaska	SEA	STS	2h 04m	84%	2.7%	692	Flying now

Best connections, one ticket

Most reliable Quickest (80%+ on time)

Ranked by chance you reach Santa Rosa on time. Total trip = scheduled departure to arrival, layover included. Layovers up to 4 hours. Pick a connection for the details.


Alaska Details →	SEA 09:43 → BUR 12:23AS 426	2h 56m Burbank	BUR 15:19 → STS 16:55AS 3093 · flown by SkyWest	7h 12m	100%	94%
Alaska Details →	SEA 06:42 → PDX 07:37AS 2432 · flown by Horizon	3h 08m Portland	PDX 10:45 → STS 12:26AS 2330 · flown by Horizon	5h 44m	100%	91%
Alaska Details →	SEA 17:59 → PDX 18:56AS 2302 · flown by Horizon	2h 49m Portland	PDX 21:45 → STS 23:30AS 3115 · flown by SkyWest	5h 31m	98%	89%
Alaska Details →	SEA 11:15 → LAX 14:01AS 487	2h 59m Los Angeles	LAX 17:00 → STS 18:43AS 3476 · flown by SkyWest	7h 28m	100%	89%
Alaska Details →	SEA 13:50 → ONT 16:30AS 571	2h 13m Ontario	ONT 18:43 → STS 20:14AS 3086 · flown by SkyWest	6h 24m	98%	85%
Alaska Details →	SEA 13:49 → SNA 16:41AS 773	2h 33m Santa Ana	SNA 19:14 → STS 21:01AS 3432 · flown by SkyWest	7h 12m	99%	81%
Alaska Details →	SEA 06:40 → SNA 09:34AS 699	2h 14m Santa Ana	SNA 11:48 → STS 13:37AS 3467 · flown by SkyWest	6h 57m	99%	81%
Alaska Details →	SEA 10:14 → PDX 11:21AS 3090 · flown by SkyWest	3h 09m Portland	PDX 14:30 → STS 16:15AS 3483 · flown by SkyWest	6h 01m	100%	78%

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

PHX · 59m · leaves 06:16 5%

PDX · 56m · leaves 08:45 16%

Afternoon and evening

SNA · 1h 18m · leaves 15:08 18%

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.


Delta DL 3953 SEA 07:30 → PDX Alaska AS 2330 PDX 10:45 → STS Connection details →	2h 06m	4h 56m	97%	89%
Frontier F9 1178 SEA 11:03 → LAX Alaska AS 3476 LAX 17:00 → STS Connection details →	2h 59m	7h 40m	97%	88%
Delta DL 3999 SEA 13:30 → SNA Alaska AS 3432 SNA 19:14 → STS Connection details →	2h 43m	7h 31m	97%	79%

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