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 CMH → BWI flights land within a few points of 88% on time whatever the hour.

Nonstops


Southwest	CMH	BWI	1h 20m	88%	1.6%	1,048	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 →	CMH 05:10 → MCO 07:20WN 1193	1h 20m Orlando	MCO 08:40 → BWI 10:55WN 2611	5h 45m	100%	92%
Delta Details →	CMH 07:05 → ATL 08:42DL 2909	2h 28m Atlanta	ATL 11:10 → BWI 13:03DL 2711	5h 58m	98%	85%
American Details →	CMH 05:30 → ORD 06:00AA 4487 · flown by Republic	51m Chicago	ORD 06:51 → BWI 09:58AA 3446 · flown by Envoy	4h 28m	93%	84%
Southwest Details →	CMH 07:35 → TPA 09:45WN 2996	55m Tampa	TPA 10:40 → BWI 13:00WN 1016	5h 25m	96%	84%
Delta Details →	CMH 06:30 → DTW 07:39DL 5701 · flown by Republic	2h 31m Detroit	DTW 10:10 → BWI 11:47DL 1546	5h 17m	98%	83%
Delta Details →	CMH 06:00 → ATL 07:36DL 2469	1h 19m Atlanta	ATL 08:55 → BWI 10:47DL 801	4h 47m	95%	82%
United Details →	CMH 07:00 → ORD 07:39UA 3429 · flown by Republic	3h 12m Chicago	ORD 10:51 → BWI 13:57UA 2653	6h 57m	98%	82%
Delta Details →	CMH 06:00 → BOS 08:13DL 5663 · flown by Republic	2h 56m Boston	BOS 11:09 → BWI 12:49DL 5668 · flown by Republic	6h 49m	100%	79%
Tight connection: often missed
Southwest Details →	CMH 16:25 → MCO 18:45WN 4918	1h 05m Orlando	MCO 19:50 → BWI 22:15WN 1015	5h 50m	72%	43%
American Details →	CMH 14:32 → ORD 15:14AA 4954 · flown by SkyWest	1h 04m Chicago	ORD 16:18 → BWI 19:28AA 4717 · flown by Republic	4h 59m	75%	37%
Southwest Details →	CMH 16:15 → MDW 16:30WN 1199	50m Chicago	MDW 17:20 → BWI 20:15WN 4616	4h 00m	68%	28%

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 20m · leaves 05:10 0%

TPA · 55m · leaves 07:35 4%

ATL · 1h 19m · leaves 06:00 5%

Afternoon and evening

ORD · 1h 04m · leaves 14:32 25%

MCO · 1h 05m · leaves 19:35 31%

MDW · 50m · leaves 16:15 32%

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 2469 CMH 06:00 → ATL Southwest WN 186 ATL 10:15 → BWI Connection details →	2h 39m	6h 10m	97%	83%
American AA 4041 CMH 06:49 → ORD United UA 2653 ORD 10:51 → BWI Connection details →	3h 21m	7h 08m	97%	81%
American AA 4642 CMH 06:00 → BOS Delta DL 5668 BOS 11:09 → BWI Connection details →	3h 03m	6h 49m	98%	78%

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