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

No clear winner: Delta’s SAT → JFK flights land within a few points of 82% on time whatever the hour.

Nonstops (seasonal or thin)


Delta	SAT	JFK	4h 10m	82%	4.4%	362	Flying now

Best connections, any airlines

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 1 h ahead of San Antonio). Layovers up to 4 hours. Pick a connection for the details.


Southwest + Deltatwo ticketsDetails →	SAT 18:30 → DEN 20:00WN 3568	3h 59m Denver	DEN 23:59 → JFK 05:48 +1DL 758	10h 18m	96%	90%
Southwest + Americantwo ticketsDetails →	SAT 06:45 → PHX 07:05WN 4123	2h 12m Phoenix	PHX 09:17 → JFK 17:29AA 2689	9h 45m	97%	81%
American + Deltatwo ticketsDetails →	SAT 19:04 → PHX 19:26AA 2053	3h 09m Phoenix	PHX 22:35 → JFK 06:27 +1DL 548	10h 23m	93%	81%
Delta Details →	SAT 06:30 → SLC 08:24DL 2592	1h 35m Salt Lake City	SLC 09:59 → JFK 16:49DL 1792	9h 19m	97%	79%
Southwest + Deltatwo ticketsDetails →	SAT 05:00 → MCO 08:45WN 4608	2h 20m Orlando	MCO 11:05 → JFK 13:47DL 2049	7h 47m	100%	79%
Delta Details →	SAT 06:05 → MSP 09:00DL 2717	3h 53m Minneapolis	MSP 12:53 → JFK 17:00DL 2661	9h 55m	99%	79%
Delta Details →	SAT 12:36 → SLC 14:30DL 930	2h 40m Salt Lake City	SLC 17:10 → JFK 23:52DL 697	10h 16m	98%	77%
Delta Details →	SAT 05:25 → ATL 08:53DL 1073	2h 17m Atlanta	ATL 11:10 → JFK 13:29DL 2380	7h 04m	97%	77%
Tight connection: often missed
American Details →	SAT 09:31 → DFW 10:50AA 1631	56m Dallas-Fort Worth	DFW 11:46 → JFK 16:30AA 481	5h 59m	74%	35%
American Details →	SAT 11:04 → DFW 12:21AA 413	49m Dallas-Fort Worth	DFW 13:10 → JFK 17:56AA 1049	5h 52m	59%	31%

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

ATL · 1h 04m · leaves 06:40 4%

MIA · 55m · leaves 05:01 9%

DTW · 48m · leaves 05:15 11%

Afternoon and evening

DFW · 1h 09m · leaves 13:44 17%

ATL · 1h 05m · leaves 12:05 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.

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