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 PWM → BWI flights land within a few points of 84% on time whatever the hour.

Nonstops


Southwest	PWM	BWI	1h 40m	84%	0.9%	1,342	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 →	PWM 06:00 → ATL 08:45DL 1515	2h 25m Atlanta	ATL 11:10 → BWI 13:03DL 2711	7h 03m	99%	86%
United Details →	PWM 06:00 → ORD 08:00UA 723	2h 51m Chicago	ORD 10:51 → BWI 13:57UA 2653	7h 57m	100%	83%
American Details →	PWM 07:16 → CLT 09:46AA 2966	1h 49m Charlotte	CLT 11:35 → BWI 13:03AA 846	5h 47m	97%	74%
Delta Details →	PWM 16:45 → DTW 18:54DL 1821	2h 46m Detroit	DTW 21:40 → BWI 23:18DL 2715	6h 33m	94%	70%
Southwest Details →	PWM 07:40 → MDW 09:15WN 3415	2h 45m Chicago	MDW 12:00 → BWI 14:50WN 2744	7h 10m	100%	70%
Delta Details →	PWM 13:55 → ATL 16:50DL 2479	2h 40m Atlanta	ATL 19:30 → BWI 21:25DL 1257	7h 30m	97%	67%
American Details →	PWM 18:01 → CLT 20:36AA 2352	2h 09m Charlotte	CLT 22:45 → BWI 00:14 +1AA 1318	6h 13m	91%	66%
American Details →	PWM 14:25 → CLT 17:02AA 2348	1h 59m Charlotte	CLT 19:01 → BWI 20:36AA 1495	6h 11m	91%	57%
Tight connection: often missed
Delta Details →	PWM 18:59 → ATL 21:56DL 488	49m Atlanta	ATL 22:45 → BWI 00:40 +1DL 2590	5h 41m	56%	41%

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.

Afternoon and evening

ATL · 49m · leaves 18:59 44%

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.


American AA 2966 PWM 07:16 → CLT Southwest WN 477 CLT 13:10 → BWI Connection details →	3h 24m	7h 24m	97%	77%
American AA 4391 PWM 06:09 → ORD United UA 2653 ORD 10:51 → BWI Connection details →	2h 31m	7h 48m	94%	76%
United UA 1182 PWM 17:00 → ORD American AA 4663 ORD 21:25 → BWI Connection details →	2h 25m	7h 33m	78%	59%

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