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 PIT → HOU flights land within a few points of 78% on time whatever the hour.

Nonstops (seasonal or thin)


Southwest	PIT	HOU	3h 10m	78%	0.3%	316	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 (Houston is 1 h behind Pittsburgh). Layovers up to 4 hours. Pick a connection for the details.


Southwest Details →	PIT 05:10 → MCO 07:30WN 3374	2h 10m Orlando	MCO 09:40 → HOU 11:10WN 3174	7h 00m	100%	90%
Southwest Details →	PIT 05:50 → BWI 07:00WN 4417	3h 00m Baltimore	BWI 10:00 → HOU 12:15WN 956	7h 25m	100%	88%
Delta Details →	PIT 05:45 → ATL 07:25DL 1504	3h 40m Atlanta	ATL 11:05 → HOU 12:11DL 1195	7h 27m	99%	81%
Southwest Details →	PIT 06:00 → DAL 07:50WN 4465	2h 40m Dallas	DAL 10:30 → HOU 11:45WN 23	6h 45m	100%	80%
American Details →	PIT 06:01 → DFW 08:09AA 3329	2h 42m Dallas-Fort Worth	DFW 10:51 → HOU 12:16AA 6413 · flown by SkyWest	7h 15m	98%	78%
Delta Details →	PIT 10:10 → ATL 12:00DL 1380	3h 11m Atlanta	ATL 15:11 → HOU 16:23DL 2381	7h 15m	99%	76%
Southwest Details →	PIT 06:30 → BNA 07:05WN 1935	55m Nashville	BNA 08:00 → HOU 10:05WN 532	4h 35m	89%	72%
Southwest Details →	PIT 08:45 → MDW 09:10WN 3378	1h 00m Chicago	MDW 10:10 → HOU 12:50WN 2783	5h 05m	80%	69%
Tight connection: often missed
Southwest Details →	PIT 21:15 → BNA 21:50WN 3363	55m Nashville	BNA 22:45 → HOU 00:50 +1WN 4474	4h 30m	61%	29%
American Details →	PIT 19:36 → DFW 21:43AA 2307	55m Dallas-Fort Worth	DFW 22:38 → HOU 23:56AA 5465 · flown by PSA	5h 20m	61%	27%
Southwest Details →	PIT 17:50 → BWI 19:00WN 3033	1h 00m Baltimore	BWI 20:00 → HOU 22:15WN 958	5h 25m	48%	20%

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

BWI · 1h 20m · leaves 10:30 0%

ATL · 55m · leaves 05:45 10%

BNA · 55m · leaves 06:30 11%

Afternoon and evening

MDW · 1h 00m · leaves 20:10 29%

DFW · 55m · leaves 19:36 39%

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.


Delta DL 5753 PIT 06:05 → LGA Southwest WN 1711 LGA 10:30 → HOU Connection details →	2h 56m	8h 15m	99%	78%
United UA 1765 PIT 08:30 → DEN Southwest WN 1544 DEN 12:30 → HOU Connection details →	2h 31m	8h 35m	98%	77%
Delta DL 1504 PIT 05:45 → ATL Southwest WN 4914 ATL 09:30 → HOU Connection details →	2h 05m	5h 50m	96%	75%

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