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

No clear winner: United’s XNA → IAH flights land within a few points of 85% on time whatever the hour.

Nonstops


United	XNA	IAH	1h 55m	85%	1.1%	1,409	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. Layovers up to 4 hours. Pick a connection for the details.


American Details →	XNA 09:14 → ORD 11:11AA 3839 · flown by Envoy	2h 18m Chicago	ORD 13:29 → IAH 16:27AA 4426 · flown by Republic	7h 11m	99%	79%
Delta Details →	XNA 07:20 → ATL 10:17DL 5497 · flown by Endeavor	2h 13m Atlanta	ATL 12:30 → IAH 13:38DL 1572	6h 18m	94%	79%
Delta Details →	XNA 06:00 → ATL 09:00DL 3905 · flown by SkyWest	1h 05m Atlanta	ATL 10:05 → IAH 11:18DL 1682	5h 18m	96%	77%
United Details →	XNA 07:20 → ORD 09:30UA 5853 · flown by SkyWest	55m Chicago	ORD 10:25 → IAH 13:23UA 2638	6h 03m	93%	75%
United Details →	XNA 13:28 → DEN 14:48UA 5812 · flown by SkyWest	1h 32m Denver	DEN 16:20 → IAH 19:57UA 588	6h 29m	97%	74%
United Details →	XNA 17:06 → DEN 18:22UA 5694 · flown by SkyWest	2h 06m Denver	DEN 20:28 → IAH 23:59UA 2419	6h 53m	91%	72%
United Details →	XNA 08:50 → DEN 10:01UA 1045	1h 33m Denver	DEN 11:34 → IAH 15:09UA 1599	6h 19m	92%	71%
Delta Details →	XNA 11:52 → MSP 13:50DL 3536 · flown by SkyWest	55m Minneapolis	MSP 14:45 → IAH 17:39DL 2644	5h 47m	89%	69%
Tight connection: often missed
Delta Details →	XNA 17:59 → ATL 20:55DL 5126 · flown by Endeavor	1h 49m Atlanta	ATL 22:44 → IAH 23:56DL 1601	5h 57m	74%	54%
American Details →	XNA 07:13 → DFW 08:45AA 3985 · flown by Envoy	50m Dallas-Fort Worth	DFW 09:35 → IAH 10:53AA 3591 · flown by Envoy	3h 40m	64%	44%
American Details →	XNA 17:47 → DFW 19:15AA 3274	1h 55m Dallas-Fort Worth	DFW 21:10 → IAH 22:24AA 2209	4h 37m	71%	32%

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 4%

DFW · 1h 19m · leaves 09:08 12%

Afternoon and evening

DEN · 1h 13m · leaves 17:06 21%

DFW · 58m · leaves 20:21 42%

ORD · 46m · leaves 14:56 48%

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 3905 XNA 06:00 → ATL United UA 425 ATL 11:37 → IAH Connection details →	2h 37m	6h 47m	98%	86%
American AA 3614 XNA 05:00 → DFW United UA 1586 DFW 09:46 → IAH Connection details →	3h 26m	6h 03m	97%	79%
American AA 3985 XNA 07:13 → DFW United UA 539 DFW 11:59 → IAH Connection details →	3h 14m	6h 04m	90%	75%

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