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 12 pm and 27% of the time at 6 pm.

Nonstops


United	IAH	PIT	2h 51m	85%	0.4%	1,037	Flying now

Best connections, one ticket

Most reliable Quickest (80%+ on time)

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


United Details →	IAH 06:10 → ORD 09:05UA 2616	3h 35m Chicago	ORD 12:40 → PIT 15:23UA 3432 · flown by Republic	8h 13m	100%	87%
United Details →	IAH 07:20 → IAD 11:28UA 1549	1h 28m Dulles	IAD 12:56 → PIT 14:03UA 2066	5h 43m	97%	85%
United Details →	IAH 06:30 → DEN 08:02UA 2643	2h 03m Denver	DEN 10:05 → PIT 15:16UA 1308	7h 46m	100%	84%
Delta Details →	IAH 05:40 → ATL 08:43DL 1069	2h 17m Atlanta	ATL 11:00 → PIT 12:42DL 1345	6h 02m	99%	83%
Delta Details →	IAH 08:05 → ATL 11:09DL 644	2h 58m Atlanta	ATL 14:07 → PIT 15:50DL 1353	6h 44m	100%	83%
Delta Details →	IAH 07:00 → LGA 11:33DL 1417	1h 37m New York	LGA 13:10 → PIT 14:54DL 5715 · flown by Republic	6h 54m	96%	78%
United Details →	IAH 06:01 → EWR 10:36UA 1797	2h 29m Newark	EWR 13:05 → PIT 14:35UA 4396 · flown by GoJet	7h 34m	100%	78%
Delta Details →	IAH 09:42 → ATL 12:48DL 1585	2h 41m Atlanta	ATL 15:29 → PIT 17:15DL 1568	6h 33m	98%	78%
Tight connection: often missed
United Details →	IAH 13:46 → EWR 18:30UA 1397	59m Newark	EWR 19:29 → PIT 21:06UA 3403 · flown by Republic	6h 20m	73%	56%
United Details →	IAH 12:00 → EWR 16:46UA 2371	49m Newark	EWR 17:35 → PIT 19:13UA 3447 · flown by Republic	6h 13m	62%	46%
American Details →	IAH 12:21 → PHL 16:49AA 1927	51m Philadelphia	PHL 17:40 → PIT 19:12AA 6092 · flown by Piedmont	5h 51m	31%	19%

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

EWR · 1h 06m · leaves 07:20 9%

DEN · 1h 13m · leaves 07:20 11%

DTW · 54m · leaves 05:20 13%

Afternoon and evening

EWR · 49m · leaves 12:00 38%

ATL · 53m · leaves 16:51 46%

PHL · 51m · leaves 12:21 69%

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.


United UA 1044 IAH 05:04 → ORD American AA 4484 ORD 09:45 → PIT Connection details →	1h 46m	6h 28m	97%	88%
United UA 1030 IAH 07:20 → ATL Delta DL 1353 ATL 14:07 → PIT Connection details →	3h 28m	7h 29m	99%	83%
Delta DL 1315 IAH 07:02 → ATL Southwest WN 236 ATL 13:10 → PIT Connection details →	3h 05m	6h 48m	97%	81%

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