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

Connect in the morning. The same one-hour layover misses 5% of the time at 9 am and 15% of the time at 10 pm.

Nonstops (none in the current schedule)


American	SJC	JFK	–	100%few flights	0.0%	3	Not flying now
Delta	SJC	JFK	–	50%few flights	0.0%	2	Not flying now

Best connections, one ticket

Most reliable Quickest (80%+ on time)

Ranked by chance you reach New York on time. Total trip = scheduled departure to arrival, layover included (New York is 3 h ahead of San Jose). Layovers up to 4 hours. Pick a connection for the details.


Delta Details →	SJC 22:00 → ATL 05:34DL 2136	2h 10m Atlanta	ATL 07:44 → JFK 10:00 +1DL 2420	9h 00m	98%	88%
Delta Details →	SJC 16:30 → LAX 17:56DL 3822 · flown by SkyWest	3h 14m Los Angeles	LAX 21:10 → JFK 05:25 +1DL 960	9h 55m	100%	84%
Delta Details →	SJC 20:19 → LAX 21:55DL 3883 · flown by SkyWest	2h 00m Los Angeles	LAX 23:55 → JFK 08:30 +1DL 915	9h 11m	99%	83%
Alaska Details →	SJC 08:00 → PDX 09:44AS 679	1h 03m Portland	PDX 10:47 → JFK 19:23AS 18	8h 23m	100%	82%
Delta Details →	SJC 17:55 → SEA 20:13DL 3897 · flown by SkyWest	2h 07m Seattle	SEA 22:20 → JFK 06:34 +1DL 452	9h 39m	98%	81%
Alaska Details →	SJC 17:28 → SEA 19:39AS 1413	3h 36m Seattle	SEA 23:15 → JFK 07:38 +1AS 22	11h 10m	97%	78%
Delta Details →	SJC 18:12 → LAX 19:37DL 1438	3h 08m Los Angeles	LAX 22:45 → JFK 07:04 +1DL 676	9h 52m	100%	78%
Alaska Details →	SJC 09:09 → SAN 10:45AS 3499 · flown by SkyWest	3h 30m San Diego	SAN 14:15 → JFK 22:56AS 36	10h 47m	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

PDX · 1h 03m · leaves 08:00 0%

SLC · 1h 04m · leaves 06:00 5%

PHX · 1h 12m · leaves 06:01 7%

Afternoon and evening

LAX · 50m · leaves 20:19 15%

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 4246 SJC 17:05 → DEN Delta DL 758 DEN 23:59 → JFK Connection details →	3h 29m	9h 43m	100%	93%
Southwest WN 3266 SJC 16:05 → PHX American AA 1587 PHX 21:50 → JFK Connection details →	3h 50m	10h 42m	100%	84%
Southwest WN 3713 SJC 16:58 → SNA Delta DL 556 SNA 21:00 → JFK Connection details →	2h 42m	9h 25m	99%	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