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

No nonstop, and no clear pattern: the best connection reaches Oakland on time 85% of the time.

Best connections, one ticket

Ranked by chance you reach Oakland on time. Total trip = scheduled departure to arrival, layover included (Oakland is 2 h behind Houston). Layovers up to 4 hours. Pick a connection for the details.


Delta Details →	IAH 19:01 → SLC 21:15DL 1299	1h 35m Salt Lake City	SLC 22:50 → OAK 23:50DL 3797 · flown by SkyWest	6h 50m	90%	85%
Delta Details →	IAH 07:35 → SLC 09:51DL 1583	54m Salt Lake City	SLC 10:45 → OAK 11:53DL 4134 · flown by SkyWest	6h 18m	82%	76%
Alaska Details →	IAH 06:02 → SEA 08:40AS 453	3h 01m Seattle	SEA 11:41 → OAK 13:59AS 1328	9h 57m	100%	72%

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 00m · leaves 08:00 15%

SLC · 54m · leaves 07:35 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.


United UA 740 IAH 09:30 → PDX Alaska AS 2035 PDX 15:08 → OAK Connection details →	3h 12m	9h 25m	97%	97%
United UA 756 IAH 09:45 → SLC Delta DL 3903 SLC 15:20 → OAK Connection details →	3h 21m	8h 38m	100%	91%
Frontier F9 3131 IAH 06:10 → ONT Southwest WN 3154 ONT 11:05 → OAK Connection details →	3h 33m	8h 10m	98%	89%

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