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

Take the nonstop: Alaska ONT → STS (1h 31m) reaches Santa Rosa on time 92% of the time; the most reliable connection, Southwest via Las Vegas (3h 55m), 21%.

Nonstops (seasonal or thin)


Alaska	ONT	STS	1h 31m	92%	0.0%	136	Flying now

Best connections, any airlines

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 →	ONT 07:00 → PDX 09:15AS 345	1h 30m Portland	PDX 10:45 → STS 12:26AS 2330 · flown by Horizon	5h 26m	100%	92%
Alaska Details →	ONT 17:32 → PDX 19:49AS 2456 · flown by Horizon	1h 56m Portland	PDX 21:45 → STS 23:30AS 3115 · flown by SkyWest	5h 58m	98%	87%
Alaska Details →	ONT 10:54 → PDX 13:09AS 1699	1h 21m Portland	PDX 14:30 → STS 16:15AS 3483 · flown by SkyWest	5h 21m	98%	77%
Alaska Details →	ONT 06:02 → SEA 08:44AS 607	1h 10m Seattle	SEA 09:54 → STS 11:58AS 1321	5h 56m	94%	76%
Frontier + Alaskatwo ticketsDetails →	ONT 11:58 → LAS 13:06F9 2232	2h 18m Las Vegas	LAS 15:24 → STS 17:16AS 2458 · flown by Horizon	5h 18m	92%	70%
Frontier + Alaskatwo ticketsDetails →	ONT 16:04 → SEA 18:58F9 2275	1h 46m Seattle	SEA 20:44 → STS 22:51AS 3410 · flown by SkyWest	6h 47m	80%	54%
Southwest + Americantwo ticketsDetails →	ONT 05:15 → PHX 06:30WN 864	3h 43m Phoenix	PHX 10:13 → STS 12:39AA 6361 · flown by SkyWest	7h 24m	98%	40%
American Details →	ONT 06:11 → PHX 07:30AA 1194	2h 47m Phoenix	PHX 10:17 → STS 12:30AA 3514 · flown by Envoy	6h 19m	96%	36%

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 10m · leaves 06:02 6%

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