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 1 time in 10 at 9 am and 28% of the time at 6 pm.

Nonstops (seasonal or thin)


Delta	IAH	JFK	3h 48m	80%	4.1%	269	Flying now
JetBlue	IAH	JFK	3h 49m	47%	7.6%	144	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 1 h ahead of Houston). Layovers up to 4 hours. Pick a connection for the details.


Delta Details →	IAH 19:01 → SLC 21:15DL 1299	2h 44m Salt Lake City	SLC 23:59 → JFK 06:23 +1DL 705	10h 22m	96%	84%
Delta Details →	IAH 05:40 → ATL 08:43DL 1069	57m Atlanta	ATL 09:40 → JFK 12:00DL 1034	5h 16m	90%	79%
Delta Details →	IAH 06:30 → MSP 09:18DL 1050	3h 35m Minneapolis	MSP 12:53 → JFK 17:00DL 2661	9h 30m	98%	79%
Delta Details →	IAH 05:20 → DTW 09:11DL 1389	59m Detroit	DTW 10:10 → JFK 11:59DL 2751	5h 39m	90%	76%
American Details →	IAH 05:10 → MIA 08:51AA 1047	1h 04m Miami	MIA 09:55 → JFK 13:04AA 1052	6h 54m	93%	76%
Delta Details →	IAH 08:05 → ATL 11:09DL 644	2h 50m Atlanta	ATL 13:59 → JFK 16:28DL 1575	7h 23m	100%	74%
American Details →	IAH 06:13 → ORD 09:07AA 3106	1h 53m Chicago	ORD 11:00 → JFK 14:38AA 4356 · flown by Republic	7h 25m	96%	73%
Delta Details →	IAH 12:13 → ATL 15:23DL 1682	3h 19m Atlanta	ATL 18:42 → JFK 21:28DL 2398	8h 15m	99%	73%
Tight connection: often missed
Delta Details →	IAH 14:43 → ATL 17:54DL 1572	48m Atlanta	ATL 18:42 → JFK 21:28DL 2398	5h 45m	72%	53%
American Details →	IAH 10:39 → DFW 12:03AA 1916	1h 07m Dallas-Fort Worth	DFW 13:10 → JFK 17:56AA 1049	6h 17m	73%	38%
American Details →	IAH 11:20 → MIA 15:01AA 1918	1h 02m Miami	MIA 16:03 → JFK 19:15AA 1202	6h 55m	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

LAX · 1h 11m · leaves 07:10 3%

MIA · 1h 04m · leaves 05:10 7%

ATL · 1h 05m · leaves 07:02 9%

Afternoon and evening

ATL · 48m · leaves 14:43 28%

MIA · 1h 02m · leaves 11:20 41%

DTW · 55m · leaves 15:27 42%

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 1654 IAH 18:19 → DEN Delta DL 758 DEN 23:59 → JFK Connection details →	3h 45m	10h 29m	97%	90%
United UA 2816 IAH 08:30 → DEN Delta DL 532 DEN 12:10 → JFK Connection details →	2h 05m	8h 58m	100%	81%
United UA 1044 IAH 05:04 → ORD JetBlue B6 906 ORD 09:40 → JFK Connection details →	1h 41m	6h 55m	96%	81%

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