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 1 time in 10 at 6 am and 27% of the time at 6 pm.

Nonstops


United	DTW	IAH	3h 19m	85%	0.4%	968	Flying now
Delta	DTW	IAH	3h 01m	80%	0.8%	1,322	Flying now
Frontier	DTW	IAH	3h 07m	66%	0.7%	151	Flying now
Spirit	DTW	IAH	3h 09m	79%	2.0%	351	Not 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 Detroit). Layovers up to 4 hours. Pick a connection for the details.


Delta Details →	DTW 07:25 → ATL 09:26DL 965	3h 04m Atlanta	ATL 12:30 → IAH 13:38DL 1572	7h 13m	98%	84%
United Details →	DTW 05:30 → ORD 05:53UA 3483 · flown by Republic	1h 42m Chicago	ORD 07:35 → IAH 10:36UA 1231	6h 06m	97%	83%
United Details →	DTW 07:05 → ORD 07:42UA 5553 · flown by SkyWest	2h 43m Chicago	ORD 10:25 → IAH 13:23UA 2638	7h 18m	95%	82%
United Details →	DTW 09:07 → EWR 11:00UA 3409 · flown by Republic	1h 36m Newark	EWR 12:36 → IAH 15:34UA 2204	7h 27m	97%	82%
United Details →	DTW 08:50 → ORD 09:22UA 1338	3h 18m Chicago	ORD 12:40 → IAH 15:40UA 1448	7h 50m	97%	81%
American Details →	DTW 10:33 → ORD 11:04AA 4103 · flown by Envoy	2h 25m Chicago	ORD 13:29 → IAH 16:27AA 4426 · flown by Republic	6h 52m	100%	81%
Delta Details →	DTW 06:17 → ATL 08:12DL 1611	1h 53m Atlanta	ATL 10:05 → IAH 11:18DL 1682	6h 01m	97%	79%
United Details →	DTW 15:32 → DEN 16:45UA 302	3h 43m Denver	DEN 20:28 → IAH 23:59UA 2419	9h 27m	99%	79%
Tight connection: often missed
American Details →	DTW 11:51 → DFW 13:45AA 1792	48m Dallas-Fort Worth	DFW 14:33 → IAH 15:48AA 3583 · flown by Envoy	4h 57m	69%	48%
United Details →	DTW 18:20 → ORD 18:57UA 5264 · flown by SkyWest	1h 05m Chicago	ORD 20:02 → IAH 22:59UA 2813	5h 39m	73%	36%
American Details →	DTW 15:52 → DFW 17:50AA 1793	46m Dallas-Fort Worth	DFW 18:36 → IAH 19:54AA 1392	5h 02m	51%	24%

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

IAD · 1h 00m · leaves 10:13 7%

ORD · 1h 09m · leaves 06:00 11%

ATL · 1h 05m · leaves 09:25 11%

Afternoon and evening

LAX · 56m · leaves 15:50 27%

ORD · 1h 05m · leaves 18:20 27%

DFW · 1h 03m · leaves 19:51 49%

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 5606 DTW 08:30 → PIT United UA 1964 PIT 13:05 → IAH Connection details →	3h 18m	7h 38m	98%	98%
Delta DL 2555 DTW 07:00 → MCO United UA 1493 MCO 11:57 → IAH Connection details →	2h 18m	7h 29m	98%	92%
American AA 1439 DTW 07:00 → CLT United UA 6236 CLT 11:48 → IAH Connection details →	2h 54m	7h 34m	97%	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