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


Southwest	RSW	BWI	2h 25m	81%	2.2%	1,412	Flying now
Spirit	RSW	BWI	–	100%few flights	0.0%	1	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.


Southwest Details →	RSW 05:10 → MDW 07:00WN 1243	1h 55m Chicago	MDW 08:55 → BWI 11:45WN 1355	6h 35m	100%	90%
Southwest Details →	RSW 06:15 → MCO 07:15WN 4872	1h 25m Orlando	MCO 08:40 → BWI 10:55WN 2611	4h 40m	100%	90%
Delta Details →	RSW 06:45 → ATL 08:33DL 1361	2h 37m Atlanta	ATL 11:10 → BWI 13:03DL 2711	6h 18m	99%	86%
Delta Details →	RSW 05:37 → ATL 07:23DL 1385	1h 32m Atlanta	ATL 08:55 → BWI 10:47DL 801	5h 10m	96%	83%
United Details →	RSW 07:00 → ORD 09:23UA 1554	1h 28m Chicago	ORD 10:51 → BWI 13:57UA 2653	6h 57m	99%	82%
Southwest Details →	RSW 09:30 → BNA 10:30WN 3461	1h 35m Nashville	BNA 12:05 → BWI 14:55WN 1345	5h 25m	100%	75%
American Details →	RSW 06:22 → CLT 08:20AA 1097	3h 15m Charlotte	CLT 11:35 → BWI 13:03AA 846	6h 41m	99%	75%
Southwest Details →	RSW 06:00 → STL 07:30WN 3471	3h 30m St Louis	STL 11:00 → BWI 14:05WN 4614	8h 05m	100%	74%
Tight connection: often missed
American Details →	RSW 19:41 → CLT 21:45AA 2442	1h 00m Charlotte	CLT 22:45 → BWI 00:14 +1AA 1318	4h 33m	74%	53%
Delta Details →	RSW 17:46 → DTW 20:44DL 2559	56m Detroit	DTW 21:40 → BWI 23:18DL 2715	5h 32m	63%	47%
American Details →	RSW 15:59 → CLT 18:05AA 2444	56m Charlotte	CLT 19:01 → BWI 20:36AA 1495	4h 37m	57%	37%

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 18m · leaves 08:03 6%

Afternoon and evening

DTW · 56m · leaves 17:46 37%

CLT · 56m · leaves 15:59 43%

ORD · 1h 06m · leaves 17:24 59%

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 1385 RSW 05:37 → ATL Southwest WN 186 ATL 10:15 → BWI Connection details →	2h 52m	6h 33m	96%	83%
American AA 803 RSW 06:15 → ORD United UA 2653 ORD 10:51 → BWI Connection details →	2h 18m	7h 42m	100%	79%
Delta DL 1089 RSW 10:48 → ATL Frontier F9 1080 ATL 16:06 → BWI Connection details →	3h 39m	7h 20m	98%	66%

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