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

No clear winner: Southwest’s BDL → BWI flights land within a few points of 84% on time whatever the hour.

Nonstops


Southwest	BDL	BWI	1h 25m	84%	1.9%	1,749	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 →	BDL 05:20 → TPA 08:20WN 335	2h 20m Tampa	TPA 10:40 → BWI 13:00WN 1016	7h 40m	100%	88%
Delta Details →	BDL 06:00 → ATL 08:29DL 2933	2h 41m Atlanta	ATL 11:10 → BWI 13:03DL 2711	7h 03m	99%	86%
Delta Details →	BDL 05:30 → DTW 07:27DL 2964	2h 43m Detroit	DTW 10:10 → BWI 11:47DL 1546	6h 17m	98%	82%
United Details →	BDL 06:09 → ORD 07:54UA 2672	2h 57m Chicago	ORD 10:51 → BWI 13:57UA 2653	7h 48m	99%	80%
Delta Details →	BDL 08:05 → ATL 10:29DL 2233	3h 33m Atlanta	ATL 14:02 → BWI 15:53DL 2799	7h 48m	99%	78%
Delta Details →	BDL 09:43 → DTW 11:35DL 2859	3h 34m Detroit	DTW 15:09 → BWI 16:45DL 2480	7h 02m	100%	76%
American Details →	BDL 06:01 → CLT 08:08AA 3182	3h 27m Charlotte	CLT 11:35 → BWI 13:03AA 846	7h 02m	99%	74%
United Details →	BDL 08:20 → IAH 11:10UA 1361	1h 06m Houston	IAH 12:16 → BWI 16:30UA 1720	8h 10m	90%	73%

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

IAH · 1h 06m · leaves 08:20 10%

Afternoon and evening

ATL · 54m · leaves 19:10 21%

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 1241 BDL 08:05 → PBI Southwest WN 1072 PBI 14:40 → BWI Connection details →	3h 35m	9h 00m	97%	82%
Delta DL 2933 BDL 06:00 → ATL Southwest WN 186 ATL 10:15 → BWI Connection details →	1h 46m	6h 10m	91%	78%
American AA 2133 BDL 07:38 → CLT Southwest WN 477 CLT 13:10 → BWI Connection details →	3h 20m	7h 02m	97%	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