Itineraries flown on 20+ days in the Jun 6 – Jul 31, 2026 schedule · each leg’s record Aug 2025 – Jul 2026

No nonstop, and no clear pattern: the best connection reaches Houston on time 4 times in 5.

Best connections, one ticket

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.


Delta Details →	DAL 06:05 → ATL 09:15DL 516	3h 15m Atlanta	ATL 12:30 → IAH 13:38DL 1572	7h 33m	98%	81%
Delta Details →	DAL 10:09 → ATL 13:20DL 441	3h 05m Atlanta	ATL 16:25 → IAH 17:39DL 1223	7h 30m	98%	64%
Delta Details →	DAL 12:19 → ATL 15:31DL 1115	3h 08m Atlanta	ATL 18:39 → IAH 19:52DL 1131	7h 33m	97%	56%
Delta Details →	DAL 15:59 → ATL 19:14DL 512	1h 07m Atlanta	ATL 20:21 → IAH 21:34DL 1284	5h 35m	75%	53%

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 · 50m · leaves 06:05 16%

Afternoon and evening

ATL · 1h 07m · leaves 15:59 25%

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 1434 DAL 06:05 → MCO United UA 1493 MCO 11:57 → IAH Connection details →	2h 12m	7h 24m	100%	95%
Southwest WN 1415 DAL 06:10 → TPA United UA 2421 TPA 11:55 → IAH Connection details →	2h 20m	7h 12m	100%	89%
Southwest WN 1466 DAL 06:20 → MSY United UA 2105 MSY 09:53 → IAH Connection details →	2h 08m	4h 52m	98%	88%

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