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 4% of the time at 9 am and 22% of the time at 3 pm.

Nonstops


United	IAH	BHM	1h 54m	84%	0.9%	1,618	Flying now

Best connections, one ticket

Most reliable Quickest (80%+ on time)

Ranked by chance you reach Birmingham on time. Total trip = scheduled departure to arrival, layover included. Layovers up to 4 hours. Pick a connection for the details.


Delta Details →	IAH 05:40 → ATL 08:43DL 1069	2h 32m Atlanta	ATL 11:15 → BHM 11:11DL 1017	5h 31m	99%	86%
Delta Details →	IAH 07:02 → ATL 10:05DL 1315	3h 25m Atlanta	ATL 13:30 → BHM 13:24DL 3012	6h 22m	99%	85%
American Details →	IAH 05:02 → DFW 06:19AA 2551	3h 31m Dallas-Fort Worth	DFW 09:50 → BHM 11:46AA 3469 · flown by Envoy	6h 44m	96%	81%
United Details →	IAH 06:30 → DEN 08:02UA 2643	2h 13m Denver	DEN 10:15 → BHM 14:03UA 1241	7h 33m	100%	80%
American Details →	IAH 06:01 → CLT 09:43AA 2011	1h 47m Charlotte	CLT 11:30 → BHM 12:09AA 4932 · flown by SkyWest	6h 08m	95%	80%
Delta Details →	IAH 14:43 → ATL 17:54DL 1572	3h 50m Atlanta	ATL 21:44 → BHM 21:40DL 2257	6h 57m	98%	78%
Delta Details →	IAH 09:42 → ATL 12:48DL 1585	3h 37m Atlanta	ATL 16:25 → BHM 16:19DL 2484	6h 39m	99%	76%
United Details →	IAH 05:04 → ORD 07:59UA 1044	2h 36m Chicago	ORD 10:35 → BHM 12:46UA 4380 · flown by GoJet	7h 42m	100%	76%
Tight connection: often missed
American Details →	IAH 18:12 → MIA 21:50AA 1931	1h 06m Miami	MIA 22:56 → BHM 23:59AA 3427 · flown by Envoy	5h 47m	48%	40%
American Details →	IAH 14:04 → DFW 15:30AA 2512	1h 09m Dallas-Fort Worth	DFW 16:39 → BHM 18:35AA 3417 · flown by Envoy	4h 31m	54%	31%
American Details →	IAH 18:53 → DFW 20:25AA 1929	1h 34m Dallas-Fort Worth	DFW 21:59 → BHM 23:46AA 3067	4h 53m	34%	11%

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 07m · leaves 05:40 4%

DFW · 1h 19m · leaves 07:00 13%

Afternoon and evening

CLT · 1h 13m · leaves 17:30 22%

DFW · 1h 09m · leaves 14:04 46%

MIA · 49m · leaves 11:20 55%

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 1030 IAH 07:20 → ATL Delta DL 3012 ATL 13:30 → BHM Connection details →	2h 51m	6h 04m	99%	86%
United UA 2182 IAH 07:24 → ORD American AA 3971 ORD 13:01 → BHM Connection details →	2h 41m	7h 37m	96%	81%
United UA 4064 IAH 09:45 → DTW Delta DL 4647 DTW 15:51 → BHM Connection details →	2h 09m	7h 10m	95%	77%

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