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 PIT → BWI flights land within a few points of 86% on time whatever the hour.

Nonstops


Southwest	PIT	BWI	1h 10m	86%	1.4%	1,075	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 →	PIT 05:10 → MCO 07:30WN 3374	1h 10m Orlando	MCO 08:40 → BWI 10:55WN 2611	5h 45m	96%	89%
Southwest Details →	PIT 05:30 → TPA 07:50WN 4929	2h 50m Tampa	TPA 10:40 → BWI 13:00WN 1016	7h 30m	100%	88%
Delta Details →	PIT 05:45 → ATL 07:25DL 1504	3h 45m Atlanta	ATL 11:10 → BWI 13:03DL 2711	7h 18m	99%	85%
American Details →	PIT 05:03 → CLT 06:35AA 349	1h 25m Charlotte	CLT 08:00 → BWI 09:26AA 1635	4h 23m	96%	80%
United Details →	PIT 06:49 → ORD 07:37UA 1803	3h 14m Chicago	ORD 10:51 → BWI 13:57UA 2653	7h 08m	97%	80%
Delta Details →	PIT 06:05 → BOS 08:01DL 5690 · flown by Republic	3h 08m Boston	BOS 11:09 → BWI 12:49DL 5668 · flown by Republic	6h 44m	100%	79%
Southwest Details →	PIT 17:38 → MCO 20:00WN 3376	2h 55m Orlando	MCO 22:55 → BWI 01:15 +1WN 160	7h 37m	100%	79%
Delta Details →	PIT 10:25 → DTW 11:38DL 5607 · flown by Republic	3h 31m Detroit	DTW 15:09 → BWI 16:45DL 2480	6h 20m	98%	78%
Tight connection: often missed
American Details →	PIT 20:01 → CLT 21:50AA 5602 · flown by PSA	55m Charlotte	CLT 22:45 → BWI 00:14 +1AA 1318	4h 13m	61%	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.

Morning

MCO · 1h 10m · leaves 05:10 4%

TPA · 1h 15m · leaves 05:30 4%

Afternoon and evening

ATL · 52m · leaves 13:47 16%

ORD · 1h 19m · leaves 16:10 23%

CLT · 55m · leaves 20:01 39%

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 4531 PIT 08:00 → RDU Southwest WN 297 RDU 13:20 → BWI Connection details →	3h 52m	6h 35m	100%	88%
Delta DL 1504 PIT 05:45 → ATL Southwest WN 186 ATL 10:15 → BWI Connection details →	2h 50m	6h 25m	99%	85%
JetBlue B6 1286 PIT 09:00 → BOS Southwest WN 733 BOS 13:20 → BWI Connection details →	2h 41m	6h 00m	96%	85%

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