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

No clear winner: airlines and hours on this route all land within a few points of 4 in 5 on time.

Nonstops


Delta	DTW	BWI	1h 36m	82%	1.6%	1,219	Flying now
Southwest	DTW	BWI	1h 30m	80%	1.2%	776	Flying now
Frontier	DTW	BWI	1h 36m	78%	1.8%	169	Flying now
Spirit	DTW	BWI	1h 29m	84%	0.0%	88	Not flying now

Best connections, one ticket

Most reliable Quickest (80%+ on time)

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


Delta Details →	DTW 05:17 → ATL 07:10DL 2375	4h 00m Atlanta	ATL 11:10 → BWI 13:03DL 2711	7h 46m	99%	86%
United Details →	DTW 07:05 → ORD 07:42UA 5553 · flown by SkyWest	3h 09m Chicago	ORD 10:51 → BWI 13:57UA 2653	6h 52m	97%	81%
Delta Details →	DTW 08:25 → ATL 10:25DL 1653	3h 37m Atlanta	ATL 14:02 → BWI 15:53DL 2799	7h 28m	99%	79%
Delta Details →	DTW 07:05 → BOS 09:07DL 1163	2h 02m Boston	BOS 11:09 → BWI 12:49DL 5668 · flown by Republic	5h 44m	99%	78%
Delta Details →	DTW 16:25 → MSP 17:20DL 2203	2h 25m Minneapolis	MSP 19:45 → BWI 23:13DL 2918	6h 48m	98%	77%
American Details →	DTW 07:00 → CLT 08:54AA 1439	2h 41m Charlotte	CLT 11:35 → BWI 13:03AA 846	6h 03m	98%	74%
Delta Details →	DTW 10:05 → BOS 12:05DL 2648	3h 45m Boston	BOS 15:50 → BWI 17:42DL 5644 · flown by Republic	7h 37m	100%	74%
Southwest Details →	DTW 07:00 → STL 07:35WN 1783	3h 25m St Louis	STL 11:00 → BWI 14:05WN 4614	7h 05m	100%	74%
Tight connection: often missed
Delta Details →	DTW 12:25 → ATL 14:23DL 2188	1h 02m Atlanta	ATL 15:25 → BWI 17:19DL 1267	4h 54m	73%	51%
American Details →	DTW 19:58 → CLT 21:55AA 1794	50m Charlotte	CLT 22:45 → BWI 00:14 +1AA 1318	4h 16m	66%	46%
Southwest Details →	DTW 16:42 → DEN 17:48WN 4450	1h 17m Denver	DEN 19:05 → BWI 00:35 +1WN 1500	7h 51m	53%	15%

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

DFW · 57m · leaves 07:58 13%

Afternoon and evening

CLT · 50m · leaves 19:58 34%

DEN · 1h 17m · leaves 16:42 47%

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.


JetBlue B6 1236 DTW 07:30 → BOS Southwest WN 733 BOS 13:20 → BWI Connection details →	3h 58m	7h 30m	98%	88%
Delta DL 1427 DTW 07:05 → RDU Southwest WN 1059 RDU 11:18 → BWI Connection details →	2h 30m	5h 23m	98%	87%
Delta DL 2375 DTW 05:17 → ATL Southwest WN 186 ATL 10:15 → BWI Connection details →	3h 05m	6h 53m	97%	84%

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