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 14% of the time at 11 am and 38% of the time at 3 pm.

Nonstops


Southwest	HOU	DAL	1h 10m	82%	2.2%	4,047	Flying now
American	HOU	DFW	1h 26m	78%	4.1%	2,001	Flying now
United	IAH	DFW	1h 25m	77%	1.4%	2,794	Flying now
American	IAH	DFW	1h 28m	75%	3.3%	3,320	Flying now

Best connections, one ticket

Most reliable Quickest (80%+ on time)

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


United Details →	IAH 06:30 → DEN 08:02UA 2643	1h 38m Denver	DEN 09:40 → DFW 12:48UA 355	6h 18m	98%	91%
Southwest Details →	HOU 06:20 → PHX 06:55WN 2062	1h 20m Phoenix	PHX 08:15 → DAL 12:40WN 875	6h 20m	98%	89%
Delta Details →	IAH 05:40 → ATL 08:43DL 1069	1h 32m Atlanta	ATL 10:15 → DAL 11:24DL 1115	5h 44m	98%	87%
Southwest Details →	HOU 07:10 → BNA 09:10WN 1954	3h 10m Nashville	BNA 12:20 → DAL 14:15WN 5046	7h 05m	98%	83%
Delta Details →	IAH 08:05 → ATL 11:09DL 644	2h 50m Atlanta	ATL 13:59 → DAL 15:03DL 512	7h 07m	100%	83%
Delta Details →	HOU 06:00 → ATL 09:05DL 2557	2h 23m Atlanta	ATL 11:28 → DFW 12:50DL 414	6h 50m	98%	78%
Southwest Details →	HOU 07:42 → ELP 08:32WN 4481	2h 18m El Paso	ELP 10:50 → DAL 13:40WN 1794	5h 58m	97%	77%
Southwest Details →	HOU 09:00 → MAF 10:25WN 2022	1h 05m Midland	MAF 11:30 → DAL 12:50WN 29	3h 50m	92%	76%
Tight connection: often missed
Delta Details →	HOU 17:12 → ATL 20:28DL 2381	47m Atlanta	ATL 21:15 → DAL 22:34DL 1104	5h 22m	69%	54%
United Details →	IAH 11:55 → ORD 14:51UA 2827	49m Chicago	ORD 15:40 → DFW 18:22UA 793	6h 27m	52%	34%
American Details →	IAH 18:12 → MIA 21:50AA 1931	59m Miami	MIA 22:49 → DFW 00:59 +1AA 2343	6h 47m	41%	21%

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

PHX · 1h 20m · leaves 06:20 2%

MCO · 1h 00m · leaves 05:00 3%

ATL · 1h 09m · leaves 05:40 3%

Afternoon and evening

CLT · 1h 01m · leaves 15:06 40%

ATL · 1h 02m · leaves 16:51 41%

MIA · 59m · leaves 18:12 59%

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.


Southwest WN 1970 HOU 05:30 → DEN United UA 355 DEN 09:40 → DFW Connection details →	2h 45m	7h 18m	100%	94%
United UA 6178 IAH 07:25 → OKC American AA 3805 OKC 11:10 → DFW Connection details →	2h 13m	4h 53m	97%	91%
United UA 2266 IAH 08:00 → MCI American AA 3661 MCI 12:16 → DFW Connection details →	2h 13m	6h 06m	97%	90%

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