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 JAX → HOU flights land within a few points of 9 in 10 on time whatever the hour.

Nonstops (seasonal or thin)


Southwest	JAX	HOU	2h 25m	91%	1.4%	294	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 Jacksonville). Layovers up to 4 hours. Pick a connection for the details.


Delta Details →	JAX 05:30 → ATL 06:42DL 2722	1h 38m Atlanta	ATL 08:20 → HOU 09:28DL 1509	4h 54m	97%	83%
Southwest Details →	JAX 07:45 → MDW 09:05WN 1384	1h 05m Chicago	MDW 10:10 → HOU 12:50WN 2783	6h 05m	96%	83%
Southwest Details →	JAX 06:55 → BWI 08:50WN 1181	1h 10m Baltimore	BWI 10:00 → HOU 12:15WN 956	6h 20m	94%	83%
Delta Details →	JAX 07:00 → ATL 08:15DL 2450	2h 50m Atlanta	ATL 11:05 → HOU 12:11DL 1195	6h 12m	99%	80%
Southwest Details →	JAX 06:20 → BNA 06:50WN 2155	1h 10m Nashville	BNA 08:00 → HOU 10:05WN 532	4h 45m	98%	79%
American Details →	JAX 05:52 → DFW 07:40AA 2789	3h 11m Dallas-Fort Worth	DFW 10:51 → HOU 12:16AA 6413 · flown by SkyWest	7h 24m	100%	78%
Delta Details →	JAX 10:41 → ATL 11:56DL 2326	3h 15m Atlanta	ATL 15:11 → HOU 16:23DL 2381	6h 44m	100%	78%
American Details →	JAX 09:11 → DFW 10:53AA 1537	3h 29m Dallas-Fort Worth	DFW 14:22 → HOU 15:44AA 5002 · flown by SkyWest	7h 34m	100%	71%
Tight connection: often missed
Southwest Details →	JAX 20:55 → BNA 21:30WN 2157	1h 15m Nashville	BNA 22:45 → HOU 00:50 +1WN 4474	4h 50m	70%	33%
Southwest Details →	JAX 17:20 → DEN 18:50WN 2161	1h 55m Denver	DEN 20:45 → HOU 00:45 +1WN 2026	7h 55m	58%	31%
Southwest Details →	JAX 19:02 → MDW 20:30WN 2164	1h 10m Chicago	MDW 21:40 → HOU 00:12 +1WN 954	6h 10m	72%	28%

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

BNA · 1h 10m · leaves 06:20 2%

MDW · 1h 05m · leaves 07:45 4%

Afternoon and evening

MDW · 1h 10m · leaves 19:02 28%

BNA · 1h 15m · leaves 20:55 30%

DFW · 1h 13m · leaves 19:40 47%

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 2722 JAX 05:30 → ATL Southwest WN 4914 ATL 09:30 → HOU Connection details →	2h 48m	6h 05m	98%	77%
Delta DL 5797 JAX 06:15 → LGA Southwest WN 1711 LGA 10:30 → HOU Connection details →	1h 52m	8h 05m	92%	73%
Delta DL 2356 JAX 11:48 → ATL Southwest WN 206 ATL 16:05 → HOU Connection details →	3h 02m	6h 27m	100%	64%

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