Sun, Oct 4 has passed, so this is the 12-month record.

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 5 at 4 pm.

Nonstops (seasonal or thin)


Southwest	HOU	CMH	2h 25m	77%	0.3%	355	Flying now

Best connections, one ticket

Most reliable Quickest (80%+ on time)

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


Southwest Details →	HOU 05:25 → BWI 09:30WN 3797	1h 15m Baltimore	BWI 10:45 → CMH 12:10WN 4524	5h 45m	100%	91%
Southwest Details →	HOU 05:00 → MCO 08:25WN 4483	1h 35m Orlando	MCO 10:00 → CMH 12:15WN 1187	6h 15m	100%	88%
Southwest Details →	HOU 06:25 → MDW 08:50WN 2039	2h 15m Chicago	MDW 11:05 → CMH 13:15WN 114	5h 50m	100%	82%
Delta Details →	HOU 06:00 → ATL 09:05DL 2557	1h 05m Atlanta	ATL 10:10 → CMH 11:48DL 1522	4h 48m	93%	80%
Southwest Details →	HOU 14:10 → BNA 16:05WN 478	2h 35m Nashville	BNA 18:40 → CMH 21:02WN 5059	5h 52m	100%	77%
Delta Details →	HOU 10:16 → ATL 13:20DL 1509	1h 05m Atlanta	ATL 14:25 → CMH 15:59DL 2200	4h 44m	90%	76%
Southwest Details →	HOU 07:10 → BNA 09:10WN 1954	55m Nashville	BNA 10:05 → CMH 12:25WN 4427	4h 15m	88%	75%
Delta Details →	HOU 17:12 → ATL 20:28DL 2381	1h 35m Atlanta	ATL 22:03 → CMH 23:01DL 1459	5h 29m	88%	68%

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 15m · leaves 05:25 0%

ATL · 1h 05m · leaves 06:00 7%

BNA · 55m · leaves 07:10 12%

Afternoon and evening

ATL · 1h 07m · leaves 13:10 19%

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 1970 HOU 05:30 → DEN United UA 480 DEN 09:35 → CMH Connection details →	2h 40m	7h 58m	100%	92%
Southwest WN 2622 HOU 05:50 → ATL Delta DL 1750 ATL 12:05 → CMH Connection details →	3h 15m	6h 50m	100%	80%
Southwest WN 2013 HOU 05:50 → LGA American AA 4394 LGA 13:14 → CMH Connection details →	2h 59m	8h 21m	100%	79%

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