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

No clear winner: Southwest’s OKC → HOU flights land within a few points of 83% on time whatever the hour.

Nonstops


Southwest	OKC	HOU	1h 30m	83%	0.7%	1,230	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.


Southwest Details →	OKC 05:45 → DAL 06:40WN 3109	50m Dallas	DAL 07:30 → HOU 08:45WN 3	3h 00m	93%	85%
Delta Details →	OKC 05:49 → ATL 08:59DL 1184	2h 06m Atlanta	ATL 11:05 → HOU 12:11DL 1195	6h 23m	97%	80%
Southwest Details →	OKC 09:30 → DEN 10:10WN 3112	2h 20m Denver	DEN 12:30 → HOU 16:05WN 1544	6h 35m	97%	76%
American Details →	OKC 06:00 → DFW 07:13AA 2272	3h 38m Dallas-Fort Worth	DFW 10:51 → HOU 12:16AA 6413 · flown by SkyWest	6h 16m	97%	74%
Southwest Details →	OKC 06:20 → LAS 06:50WN 392	55m Las Vegas	LAS 07:45 → HOU 12:55WN 981	6h 33m	94%	71%
American Details →	OKC 05:01 → DFW 06:07AA 656	1h 32m Dallas-Fort Worth	DFW 07:39 → HOU 08:57AA 3573 · flown by Envoy	3h 56m	96%	71%
American Details →	OKC 11:10 → DFW 12:18AA 3805 · flown by Envoy	2h 04m Dallas-Fort Worth	DFW 14:22 → HOU 15:44AA 5002 · flown by SkyWest	4h 35m	97%	69%
Southwest Details →	OKC 16:40 → DAL 17:45WN 1303	2h 45m Dallas	DAL 20:30 → HOU 21:40WN 57	5h 00m	96%	67%
Tight connection: often missed
American Details →	OKC 20:14 → DFW 21:25AA 3727 · flown by Envoy	1h 13m Dallas-Fort Worth	DFW 22:38 → HOU 23:56AA 5465 · flown by PSA	3h 42m	73%	32%
Southwest Details →	OKC 16:15 → BNA 18:00WN 3108	55m Nashville	BNA 18:55 → HOU 21:02WN 534	4h 45m	67%	22%
Southwest Details →	OKC 10:25 → AUS 11:40WN 295	1h 05m Austin	AUS 12:45 → HOU 13:45WN 4392	3h 20m	69%	6%

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

DAL · 50m · leaves 05:45 7%

DFW · 1h 12m · leaves 06:00 9%

ATL · 55m · leaves 07:00 10%

Afternoon and evening

DFW · 1h 13m · leaves 20:14 27%

BNA · 55m · leaves 16:15 33%

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 1424 OKC 09:15 → DEN Southwest WN 1544 DEN 12:30 → HOU Connection details →	2h 29m	6h 50m	100%	76%
Delta DL 2490 OKC 11:14 → ATL Southwest WN 206 ATL 16:05 → HOU Connection details →	1h 46m	6h 01m	91%	57%
Delta DL 2862 OKC 17:07 → ATL Southwest WN 207 ATL 22:50 → HOU Connection details →	2h 21m	6h 58m	91%	55%

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