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 7% of the time at 8 am and 1 time in 4 at 7 pm.

Nonstops (seasonal or thin)


Southwest	BWI	BHM	2h 10m	82%	0.9%	336	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 (Birmingham is 1 h behind Baltimore). Layovers up to 4 hours. Pick a connection for the details.


Delta Details →	BWI 07:00 → ATL 08:56DL 2579	2h 19m Atlanta	ATL 11:15 → BHM 11:11DL 1017	5h 11m	99%	86%
Delta Details →	BWI 08:17 → ATL 10:15DL 2562	3h 15m Atlanta	ATL 13:30 → BHM 13:24DL 3012	6h 07m	99%	85%
American Details →	BWI 06:15 → CLT 07:53AA 2670	3h 37m Charlotte	CLT 11:30 → BHM 12:09AA 4932 · flown by SkyWest	6h 54m	99%	85%
Delta Details →	BWI 05:40 → ATL 07:31DL 2950	2h 19m Atlanta	ATL 09:50 → BHM 09:46DL 3164	5h 07m	99%	83%
American Details →	BWI 10:31 → ORD 11:46AA 3446 · flown by Envoy	1h 15m Chicago	ORD 13:01 → BHM 15:01AA 3971 · flown by Envoy	5h 30m	97%	81%
Delta Details →	BWI 11:52 → ATL 13:41DL 801	2h 44m Atlanta	ATL 16:25 → BHM 16:19DL 2484	5h 29m	99%	78%
Delta Details →	BWI 12:32 → DTW 14:08DL 1546	1h 43m Detroit	DTW 15:51 → BHM 16:55DL 4647 · flown by Endeavor	5h 23m	96%	77%
Delta Details →	BWI 17:00 → ATL 19:08DL 2799	3h 57m Atlanta	ATL 23:05 → BHM 23:02DL 2034	7h 03m	98%	76%
Tight connection: often missed
American Details →	BWI 18:39 → MIA 21:25AA 1619	1h 31m Miami	MIA 22:56 → BHM 23:59AA 3427 · flown by Envoy	6h 20m	75%	62%
Delta Details →	BWI 17:00 → ATL 19:08DL 2799	52m Atlanta	ATL 20:00 → BHM 19:58DL 3202	3h 58m	75%	54%
Southwest Details →	BWI 18:40 → MCO 21:10WN 3777	1h 00m Orlando	MCO 22:10 → BHM 22:45WN 4829	5h 10m	55%	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

ORD · 1h 15m · leaves 10:31 3%

DTW · 55m · leaves 06:08 7%

ATL · 54m · leaves 05:40 9%

Afternoon and evening

IAH · 1h 09m · leaves 12:55 11%

ATL · 52m · leaves 17:00 25%

MCO · 1h 00m · leaves 18:40 45%

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 4689 BWI 06:20 → ATL Delta DL 1017 ATL 11:15 → BHM Connection details →	3h 00m	5h 51m	100%	89%
Southwest WN 3931 BWI 08:20 → ATL Delta DL 3012 ATL 13:30 → BHM Connection details →	3h 10m	6h 04m	98%	86%
Southwest WN 862 BWI 11:55 → ATL Delta DL 2484 ATL 16:25 → BHM Connection details →	2h 40m	5h 26m	97%	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