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 90-minute layover misses 2% of the time at 9 am and 38% of the time at 6 pm.

Nonstops


United	DFW	IAH	1h 18m	78%	1.7%	2,794	Flying now
American	DFW	IAH	1h 15m	64%	3.3%	3,322	Flying now

Best connections, one ticket

Most reliable Quickest (80%+ on time)

Ranked by chance you reach Houston on time. Total trip = scheduled departure to arrival, layover included. Layovers up to 4 hours. Pick a connection for the details.


United Details →	DFW 05:45 → DEN 06:53UA 773	49m Denver	DEN 07:42 → IAH 11:15UA 1720	5h 30m	91%	82%
Delta Details →	DFW 06:55 → ATL 10:09DL 893	2h 21m Atlanta	ATL 12:30 → IAH 13:38DL 1572	6h 43m	97%	81%
Delta Details →	DFW 05:30 → ATL 08:42DL 401	1h 23m Atlanta	ATL 10:05 → IAH 11:18DL 1682	5h 48m	98%	76%
United Details →	DFW 09:45 → ORD 12:26UA 1114	1h 49m Chicago	ORD 14:15 → IAH 17:20UA 2451	7h 35m	97%	76%
Delta Details →	DFW 07:26 → LAX 08:45DL 439	55m Los Angeles	LAX 09:40 → IAH 15:04DL 1143	7h 39m	90%	75%
United Details →	DFW 11:35 → DEN 12:45UA 2049	2h 50m Denver	DEN 15:35 → IAH 19:10UA 489	7h 35m	97%	75%
United Details →	DFW 08:45 → DEN 10:06UA 644	1h 28m Denver	DEN 11:34 → IAH 15:09UA 1599	6h 24m	95%	74%
American Details →	DFW 06:10 → PHX 06:49AA 1818	2h 05m Phoenix	PHX 08:54 → IAH 13:36AA 2710	7h 32m	100%	73%
Tight connection: often missed
Frontier Details →	DFW 16:16 → ATL 19:50F9 2496	1h 35m Atlanta	ATL 21:25 → IAH 22:48F9 4075	6h 32m	70%	42%
American Details →	DFW 14:25 → MIA 18:24AA 1167	1h 18m Miami	MIA 19:42 → IAH 21:33AA 2541	7h 08m	62%	39%
American Details →	DFW 16:50 → ORD 19:44AA 2474	1h 23m Chicago	ORD 21:07 → IAH 23:51AA 3144	7h 01m	70%	34%

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

DEN · 49m · leaves 05:45 9%

PHX · 1h 20m · leaves 07:08 10%

LAX · 55m · leaves 07:26 10%

Afternoon and evening

ORD · 48m · leaves 14:15 47%

DCA · 57m · leaves 14:56 49%

CLT · 1h 00m · leaves 15:57 65%

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 3173 DFW 06:15 → MCO United UA 1493 MCO 11:57 → IAH Connection details →	2h 07m	7h 14m	94%	89%
American AA 3748 DFW 07:00 → PNS United UA 4258 PNS 11:35 → IAH Connection details →	2h 38m	6h 30m	97%	88%
American AA 3390 DFW 06:00 → ATL United UA 425 ATL 11:37 → IAH Connection details →	2h 24m	6h 47m	98%	88%

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