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 4% of the time at 11 am and 17% of the time at 6 pm.

Nonstops


Delta	IAH	LGA	3h 33m	78%	4.5%	1,345	Flying now
United	IAH	LGA	3h 35m	73%	2.5%	2,683	Flying now
Spirit	IAH	LGA	3h 28m	62%	6.4%	266	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 1 h ahead of Houston). Layovers up to 4 hours. Pick a connection for the details.


United Details →	IAH 05:15 → DEN 06:47UA 1874	1h 16m Denver	DEN 08:03 → LGA 13:57UA 1442	7h 42m	97%	84%
Delta Details →	IAH 05:40 → ATL 08:43DL 1069	2h 47m Atlanta	ATL 11:30 → LGA 13:44DL 467	7h 04m	99%	81%
United Details →	IAH 05:04 → ORD 07:59UA 1044	2h 04m Chicago	ORD 10:03 → LGA 13:26UA 669	7h 22m	100%	80%
United Details →	IAH 06:30 → DEN 08:02UA 2643	1h 47m Denver	DEN 09:49 → LGA 15:46UA 2446	8h 16m	98%	80%
American Details →	IAH 06:01 → CLT 09:43AA 2011	3h 24m Charlotte	CLT 13:07 → LGA 15:05AA 2036	8h 04m	98%	77%
American Details →	IAH 05:10 → MIA 08:51AA 1047	1h 05m Miami	MIA 09:56 → LGA 12:59AA 3256	6h 49m	94%	75%
United Details →	IAH 14:31 → IAD 18:50UA 1478	3h 15m Dulles	IAD 22:05 → LGA 23:30UA 3413 · flown by Republic	7h 59m	98%	74%
Delta Details →	IAH 07:02 → ATL 10:05DL 1315	3h 25m Atlanta	ATL 13:30 → LGA 15:49DL 460	7h 47m	99%	73%
Tight connection: often missed
American Details →	IAH 16:18 → DFW 17:48AA 3583 · flown by Envoy	1h 25m Dallas-Fort Worth	DFW 19:13 → LGA 23:45AA 2708	6h 27m	73%	34%
Delta Details →	IAH 16:51 → ATL 20:13DL 2890	47m Atlanta	ATL 21:00 → LGA 23:23DL 520	5h 32m	46%	32%
American Details →	IAH 11:26 → ORD 14:17AA 1909	46m Chicago	ORD 15:03 → LGA 18:20AA 3050	5h 57m	49%	27%

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

ORD · 1h 01m · leaves 05:04 3%

DEN · 1h 16m · leaves 05:15 3%

IAD · 1h 12m · leaves 07:20 4%

Afternoon and evening

IAD · 1h 19m · leaves 16:35 17%

DFW · 1h 19m · leaves 14:04 41%

ATL · 47m · leaves 16:51 54%

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 1044 IAH 05:04 → ORD Delta DL 2252 ORD 09:35 → LGA Connection details →	1h 36m	6h 52m	91%	78%
United UA 6162 IAH 07:25 → IND Delta DL 5642 IND 14:48 → LGA Connection details →	3h 54m	8h 33m	100%	77%
United UA 6149 IAH 07:20 → MKE Delta DL 5723 MKE 13:20 → LGA Connection details →	3h 15m	8h 18m	100%	76%

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