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 12% of the time at 10 am and 1 time in 3 at 8 pm.

Nonstops


JetBlue	JFK	SAN	6h 03m	85%	2.9%	725	Flying now
Delta	JFK	SAN	6h 09m	78%	2.9%	1,040	Flying now
Alaska	JFK	SAN	6h 11m	77%	1.4%	650	Flying now

Best connections, one ticket

Most reliable Quickest (80%+ on time)

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


Delta Details →	JFK 06:00 → ATL 08:24DL 2286	3h 29m Atlanta	ATL 11:53 → SAN 13:21DL 540	10h 21m	99%	84%
Delta Details →	JFK 16:00 → LAX 19:09DL 353	3h 31m Los Angeles	LAX 22:40 → SAN 23:40DL 3746 · flown by SkyWest	10h 40m	98%	82%
Delta Details →	JFK 11:10 → SLC 14:18DL 917	2h 52m Salt Lake City	SLC 17:10 → SAN 18:06DL 1252	9h 56m	99%	82%
Delta Details →	JFK 06:00 → SLC 09:03DL 892	2h 12m Salt Lake City	SLC 11:15 → SAN 12:17DL 1296	9h 17m	99%	80%
Delta Details →	JFK 09:00 → LAX 12:00DL 773	2h 11m Los Angeles	LAX 14:11 → SAN 15:11DL 4001 · flown by SkyWest	9h 11m	97%	79%
Delta Details →	JFK 16:29 → SLC 20:00DL 887	2h 55m Salt Lake City	SLC 22:55 → SAN 23:50DL 1202	10h 24m	96%	78%
American Details →	JFK 05:59 → CLT 07:57AA 2643	3h 18m Charlotte	CLT 11:15 → SAN 13:05AA 466	10h 06m	98%	78%
Delta Details →	JFK 07:00 → LAS 09:25DL 607	3h 31m Las Vegas	LAS 12:56 → SAN 14:17DL 3741 · flown by SkyWest	10h 17m	99%	76%
Tight connection: often missed
Delta Details →	JFK 18:29 → SLC 21:58DL 863	57m Salt Lake City	SLC 22:55 → SAN 23:50DL 1202	8h 24m	71%	58%
American Details →	JFK 16:00 → MIA 19:26AA 1479	46m Miami	MIA 20:12 → SAN 22:38AA 2463	9h 38m	64%	28%
American Details →	JFK 17:25 → DFW 20:30AA 606	1h 04m Dallas-Fort Worth	DFW 21:34 → SAN 22:37AA 1011	8h 12m	62%	19%

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

DFW · 1h 16m · leaves 06:49 5%

BOS · 1h 04m · leaves 06:29 8%

PHX · 1h 12m · leaves 07:02 11%

Afternoon and evening

MIA · 46m · leaves 16:00 36%

DFW · 1h 04m · leaves 17:25 38%

MSP · 47m · leaves 18:20 45%

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.


American AA 341 JFK 15:40 → LAX Delta DL 3746 LAX 22:40 → SAN Connection details →	3h 52m	11h 00m	98%	83%
Delta DL 532 JFK 08:25 → DEN United UA 1302 DEN 13:30 → SAN Connection details →	2h 35m	9h 30m	96%	80%
JetBlue B6 223 JFK 07:30 → LAX Delta DL 4001 LAX 14:11 → SAN Connection details →	3h 46m	10h 41m	99%	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