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 ROC → BWI flights land within a few points of 83% on time whatever the hour.

Nonstops


Southwest	ROC	BWI	1h 20m	83%	1.2%	1,105	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.


American Details →	ROC 05:00 → ORD 05:54AA 4247 · flown by Envoy	57m Chicago	ORD 06:51 → BWI 09:58AA 3446 · flown by Envoy	4h 58m	98%	88%
Delta Details →	ROC 06:00 → ATL 08:12DL 1200	2h 58m Atlanta	ATL 11:10 → BWI 13:03DL 2711	7h 03m	98%	83%
Delta Details →	ROC 06:16 → DTW 07:34DL 1752	2h 36m Detroit	DTW 10:10 → BWI 11:47DL 1546	5h 31m	97%	83%
American Details →	ROC 05:00 → CLT 06:54AA 1058	1h 06m Charlotte	CLT 08:00 → BWI 09:26AA 1635	4h 26m	92%	80%
United Details →	ROC 06:20 → ORD 07:28UA 1778	3h 23m Chicago	ORD 10:51 → BWI 13:57UA 2653	7h 37m	97%	79%
Delta Details →	ROC 09:55 → DTW 11:18DL 5240 · flown by Endeavor	3h 51m Detroit	DTW 15:09 → BWI 16:45DL 2480	6h 50m	99%	78%
Southwest Details →	ROC 16:45 → MCO 19:35WN 2877	3h 20m Orlando	MCO 22:55 → BWI 01:15 +1WN 160	8h 30m	97%	76%
Delta Details →	ROC 18:21 → ATL 20:35DL 2047	2h 10m Atlanta	ATL 22:45 → BWI 00:40 +1DL 2590	6h 19m	94%	70%
Tight connection: often missed
Delta Details →	ROC 12:26 → ATL 14:35DL 2511	50m Atlanta	ATL 15:25 → BWI 17:19DL 1267	4h 53m	70%	47%
Southwest Details →	ROC 16:45 → MCO 19:35WN 2877	1h 10m Orlando	MCO 20:45 → BWI 20:55WN 455	6h 25m	68%	35%

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

ORD · 57m · leaves 05:00 2%

CLT · 1h 06m · leaves 05:00 8%

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 1200 ROC 06:00 → ATL Southwest WN 186 ATL 10:15 → BWI Connection details →	2h 03m	6h 10m	92%	79%
American AA 4806 ROC 06:05 → BOS Delta DL 5668 BOS 11:09 → BWI Connection details →	3h 34m	6h 44m	97%	75%
American AA 4171 ROC 12:00 → BOS Delta DL 5644 BOS 15:50 → BWI Connection details →	2h 24m	5h 42m	97%	73%

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