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

No clear winner: Southwest’s OAK → BOI flights land within a few points of 84% on time whatever the hour.

Nonstops (seasonal or thin)


Southwest	OAK	BOI	1h 30m	84%	0.0%	555	Flying now

Best connections, one ticket

Most reliable Quickest (80%+ on time)

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


Alaska Details →	OAK 07:52 → PDX 09:29AS 2298 · flown by Horizon	1h 01m Portland	PDX 10:30 → BOI 12:49AS 2089 · flown by Horizon	3h 57m	96%	92%
Southwest Details →	OAK 05:10 → PHX 07:05WN 3066	1h 35m Phoenix	PHX 08:40 → BOI 11:45WN 4601	5h 35m	98%	92%
Delta Details →	OAK 06:00 → SLC 08:55DL 4061 · flown by SkyWest	2h 05m Salt Lake City	SLC 11:00 → BOI 12:15DL 1442	5h 17m	98%	91%
Southwest Details →	OAK 05:00 → LAS 06:30WN 2325	2h 05m Las Vegas	LAS 08:35 → BOI 11:25WN 2192	5h 25m	98%	89%
Alaska Details →	OAK 10:22 → SEA 12:26AS 705	3h 19m Seattle	SEA 15:45 → BOI 18:11AS 2061 · flown by Horizon	6h 49m	100%	88%
Alaska Details →	OAK 12:01 → PDX 13:44AS 3045 · flown by SkyWest	1h 14m Portland	PDX 14:58 → BOI 17:16AS 342	4h 15m	100%	87%
Alaska Details →	OAK 14:55 → SEA 17:00AS 1464	2h 59m Seattle	SEA 19:59 → BOI 22:24AS 2034 · flown by Horizon	6h 29m	100%	86%
Delta Details →	OAK 12:33 → SLC 15:29DL 4134 · flown by SkyWest	1h 06m Salt Lake City	SLC 16:35 → BOI 17:51DL 2920	4h 19m	94%	80%
Tight connection: often missed
Southwest Details →	OAK 19:50 → PHX 21:50WN 3070	55m Phoenix	PHX 22:45 → BOI 01:48 +1WN 2554	4h 57m	35%	20%
Southwest Details →	OAK 18:25 → SAN 20:00WN 3077	1h 05m San Diego	SAN 21:05 → BOI 00:22 +1WN 644	4h 58m	27%	20%

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

DEN · 1h 05m · leaves 08:20 0%

PDX · 1h 01m · leaves 07:52 4%

Afternoon and evening

SLC · 46m · leaves 17:05 18%

PHX · 55m · leaves 19:50 65%

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.


Southwest WN 3035 OAK 07:05 → BUR Alaska AS 3209 BUR 11:00 → BOI Connection details →	2h 40m	6h 04m	100%	98%
Southwest WN 471 OAK 05:00 → PDX Alaska AS 2089 PDX 10:30 → BOI Connection details →	3h 50m	6h 49m	100%	96%
Southwest WN 3066 OAK 05:10 → PHX American AA 4948 PHX 10:10 → BOI Connection details →	3h 05m	7h 17m	98%	92%

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