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 7% of the time at 9 am and 1 time in 4 at 8 pm.

Nonstops (seasonal or thin)


Southwest	HOU	RDU	2h 30m	72%	0.6%	354	Flying now

Best connections, one ticket

Most reliable Quickest (80%+ on time)

Ranked by chance you reach Raleigh/Durham on time. Total trip = scheduled departure to arrival, layover included (Raleigh/Durham is 1 h ahead of Houston). Layovers up to 4 hours. Pick a connection for the details.


Delta Details →	HOU 06:00 → ATL 09:05DL 2557	2h 09m Atlanta	ATL 11:14 → RDU 12:44DL 1488	5h 44m	97%	87%
Southwest Details →	HOU 05:25 → BWI 09:30WN 3797	2h 05m Baltimore	BWI 11:35 → RDU 12:45WN 4442	6h 20m	100%	86%
Southwest Details →	HOU 05:30 → DEN 06:55WN 1970	3h 05m Denver	DEN 10:00 → RDU 15:25WN 1691	8h 55m	100%	76%
Delta Details →	HOU 10:16 → ATL 13:20DL 1509	1h 25m Atlanta	ATL 14:45 → RDU 16:14DL 1550	4h 58m	93%	76%
Southwest Details →	HOU 08:10 → MDW 10:40WN 1294	2h 40m Chicago	MDW 13:20 → RDU 16:15WN 4462	7h 05m	100%	74%
Delta Details →	HOU 13:10 → ATL 16:18DL 1195	4h 00m Atlanta	ATL 20:18 → RDU 21:48DL 3244	7h 38m	98%	71%
Southwest Details →	HOU 10:30 → BWI 14:35WN 1960	3h 05m Baltimore	BWI 17:40 → RDU 19:00WN 183	7h 30m	98%	71%
American Details →	HOU 06:03 → DFW 07:30AA 3395 · flown by Envoy	2h 10m Dallas-Fort Worth	DFW 09:40 → RDU 13:27AA 2400	6h 24m	95%	70%
Tight connection: often missed
Southwest Details →	HOU 14:10 → BNA 16:05WN 478	1h 30m Nashville	BNA 17:35 → RDU 20:10WN 4820	5h 00m	73%	49%
Southwest Details →	HOU 17:40 → BNA 19:35WN 1957	1h 00m Nashville	BNA 20:35 → RDU 23:10WN 4431	4h 30m	50%	26%
Southwest Details →	HOU 13:30 → DAL 14:40WN 30	55m Dallas	DAL 15:35 → RDU 19:15WN 1389	4h 45m	71%	23%

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 05m · leaves 06:00 7%

BNA · 1h 00m · leaves 07:10 11%

DFW · 1h 13m · leaves 09:30 14%

Afternoon and evening

ATL · 57m · leaves 17:12 24%

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 2622 HOU 05:50 → ATL Delta DL 1488 ATL 11:14 → RDU Connection details →	2h 24m	5h 54m	100%	91%
Southwest WN 1970 HOU 05:30 → DEN United UA 2269 DEN 09:49 → RDU Connection details →	2h 54m	8h 46m	100%	89%
Southwest WN 1954 HOU 07:10 → BNA American AA 4639 BNA 12:00 → RDU Connection details →	2h 50m	6h 33m	98%	87%

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