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 BNA → HOU flights land within a few points of 77% on time whatever the hour.

Nonstops


Southwest	BNA	HOU	2h 15m	77%	0.7%	1,820	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 →	BNA 05:10 → MCO 08:00WN 564	1h 40m Orlando	MCO 09:40 → HOU 11:10WN 3174	6h 00m	100%	90%
Southwest Details →	BNA 08:10 → MCI 09:50WN 4289	2h 05m Kansas City	MCI 11:55 → HOU 14:05WN 2555	5h 55m	100%	84%
Delta Details →	BNA 06:15 → ATL 08:31DL 3001	2h 34m Atlanta	ATL 11:05 → HOU 12:11DL 1195	5h 57m	99%	82%
Southwest Details →	BNA 08:10 → TUL 09:45WN 690	2h 40m Tulsa	TUL 12:25 → HOU 14:05WN 680	5h 55m	100%	81%
Southwest Details →	BNA 05:10 → DAL 07:00WN 485	1h 30m Dallas	DAL 08:30 → HOU 09:45WN 7	4h 35m	97%	80%
Delta Details →	BNA 05:10 → ATL 07:20DL 2637	1h 00m Atlanta	ATL 08:20 → HOU 09:28DL 1509	4h 14m	95%	80%
Southwest Details →	BNA 08:00 → SAT 10:20WN 663	2h 30m San Antonio	SAT 12:50 → HOU 13:55WN 3566	5h 55m	100%	78%
Delta Details →	BNA 10:53 → ATL 13:04DL 1155	2h 07m Atlanta	ATL 15:11 → HOU 16:23DL 2381	5h 32m	97%	76%
Tight connection: often missed
Southwest Details →	BNA 16:15 → MDW 17:50WN 2241	1h 25m Chicago	MDW 19:15 → HOU 21:50WN 1431	5h 35m	56%	27%
American Details →	BNA 15:31 → DFW 17:44AA 1475	50m Dallas-Fort Worth	DFW 18:34 → HOU 19:51AA 3351 · flown by Envoy	4h 20m	32%	19%
Southwest Details →	BNA 15:22 → SAT 17:42WN 4371	48m San Antonio	SAT 18:30 → HOU 19:35WN 3573	4h 13m	19%	11%

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

ATL · 1h 00m · leaves 05:10 5%

DFW · 1h 13m · leaves 05:01 10%

Afternoon and evening

CMH · 1h 05m · leaves 16:30 56%

DFW · 50m · leaves 15:31 68%

SAT · 48m · leaves 15:22 81%

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 2637 BNA 05:10 → ATL Southwest WN 4914 ATL 09:30 → HOU Connection details →	2h 10m	5h 25m	96%	74%
Delta DL 1155 BNA 10:53 → ATL Southwest WN 206 ATL 16:05 → HOU Connection details →	3h 01m	6h 22m	99%	64%
Delta DL 719 BNA 18:54 → ATL Southwest WN 207 ATL 22:50 → HOU Connection details →	1h 33m	5h 11m	65%	41%

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