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 3% of the time at 8 am and 29% of the time at 7 pm.

Nonstops


Delta	BWI	ATL	2h 04m	87%	2.1%	2,812	Flying now
Southwest	BWI	ATL	2h 00m	78%	1.3%	1,566	Flying now
Frontier	BWI	ATL	2h 12m	69%	2.9%	924	Flying now
Spirit	BWI	ATL	2h 05m	87%	0.9%	106	Not flying now

Best connections, one ticket

Most reliable Quickest (80%+ on time)

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


Southwest Details →	BWI 06:25 → STL 07:45WN 1109	2h 15m St Louis	STL 10:00 → ATL 12:35WN 236	6h 10m	100%	91%
United Details →	BWI 06:15 → ORD 07:30UA 709	2h 59m Chicago	ORD 10:29 → ATL 13:44UA 2684	7h 29m	100%	86%
American Details →	BWI 05:02 → CLT 06:26AA 1708	2h 44m Charlotte	CLT 09:10 → ATL 10:41AA 5039 · flown by PSA	5h 39m	99%	85%
Delta Details →	BWI 06:17 → BOS 08:00DL 5813 · flown by Republic	1h 05m Boston	BOS 09:05 → ATL 11:49DL 456	5h 32m	97%	83%
Delta Details →	BWI 06:08 → DTW 07:40DL 2601	2h 45m Detroit	DTW 10:25 → ATL 12:25DL 2856	6h 15m	99%	82%
Delta Details →	BWI 06:19 → MSP 07:56DL 2872	2h 44m Minneapolis	MSP 10:40 → ATL 14:05DL 1046	7h 46m	98%	82%
Southwest Details →	BWI 06:10 → MDW 07:10WN 995	1h 45m Chicago	MDW 08:55 → ATL 11:45WN 4154	5h 35m	95%	81%
Delta Details →	BWI 09:00 → BOS 10:39DL 5703 · flown by Republic	1h 51m Boston	BOS 12:30 → ATL 15:17DL 2779	6h 17m	96%	77%
Tight connection: often missed
United Details →	BWI 17:32 → ORD 18:55UA 590	1h 14m Chicago	ORD 20:09 → ATL 23:30UA 2770	5h 58m	71%	47%
American Details →	BWI 15:46 → DFW 18:12AA 1629	1h 14m Dallas-Fort Worth	DFW 19:26 → ATL 22:36AA 3212	6h 49m	64%	33%
United Details →	BWI 15:03 → IAH 17:19UA 2095	46m Houston	IAH 18:05 → ATL 21:18UA 2050	6h 15m	40%	18%

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

BOS · 1h 05m · leaves 06:17 3%

CLT · 1h 17m · leaves 06:15 4%

DTW · 1h 18m · leaves 09:39 8%

Afternoon and evening

DFW · 1h 14m · leaves 15:46 36%

STL · 50m · leaves 17:55 56%

IAH · 46m · leaves 15:03 60%

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 1067 BWI 08:10 → RDU Delta DL 1699 RDU 11:15 → ATL Connection details →	1h 45m	4h 32m	100%	93%
Southwest WN 898 BWI 08:15 → CHS Delta DL 3107 CHS 13:05 → ATL Connection details →	3h 03m	6h 05m	100%	89%
Southwest WN 4215 BWI 08:15 → MCI Delta DL 2908 MCI 12:21 → ATL Connection details →	2h 23m	7h 13m	100%	89%

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