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

Connect in the morning. The same one-hour layover misses 6% of the time at 8 am and barely half the time at 7 pm.

Nonstops


Southwest	BWI	CMH	1h 25m	80%	1.5%	1,056	Flying now

Best connections, one ticket

Most reliable Quickest (80%+ on time)

Ranked by chance you reach Columbus on time. Total trip = scheduled departure to arrival, layover included. Layovers up to 4 hours. Pick a connection for the details.


Southwest Details →	BWI 06:25 → STL 07:45WN 1109	2h 20m St Louis	STL 10:05 → CMH 12:28WN 3902	6h 00m	100%	90%
Delta Details →	BWI 06:08 → DTW 07:40DL 2601	2h 35m Detroit	DTW 10:15 → CMH 11:27DL 5810 · flown by Republic	5h 19m	98%	90%
Southwest Details →	BWI 06:25 → BNA 07:20WN 874	2h 45m Nashville	BNA 10:05 → CMH 12:25WN 4427	6h 00m	100%	86%
Delta Details →	BWI 17:32 → DTW 19:14DL 2480	3h 36m Detroit	DTW 22:50 → CMH 23:56DL 5634 · flown by Republic	6h 24m	97%	85%
United Details →	BWI 08:16 → ORD 09:30UA 2749	3h 18m Chicago	ORD 12:48 → CMH 15:28UA 3554 · flown by Republic	7h 12m	100%	84%
Delta Details →	BWI 05:40 → ATL 07:31DL 2950	2h 39m Atlanta	ATL 10:10 → CMH 11:48DL 1522	6h 08m	99%	84%
Delta Details →	BWI 06:19 → MSP 07:56DL 2872	2h 18m Minneapolis	MSP 10:14 → CMH 13:08DL 2550	6h 49m	98%	84%
American Details →	BWI 05:02 → CLT 06:26AA 1708	2h 33m Charlotte	CLT 08:59 → CMH 10:25AA 2395	5h 23m	99%	83%
Tight connection: often missed
Delta Details →	BWI 17:00 → ATL 19:08DL 2799	46m Atlanta	ATL 19:54 → CMH 21:31DL 1545	4h 31m	70%	45%
United Details →	BWI 17:32 → ORD 18:55UA 590	50m Chicago	ORD 19:45 → CMH 22:24UA 3614 · flown by Republic	4h 52m	45%	31%
Southwest Details →	BWI 17:35 → BNA 18:35WN 879	1h 05m Nashville	BNA 19:40 → CMH 22:00WN 850	4h 25m	71%	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

CLT · 1h 06m · leaves 06:15 5%

ATL · 1h 14m · leaves 07:00 5%

DTW · 1h 00m · leaves 06:08 6%

Afternoon and evening

MCO · 1h 10m · leaves 17:40 45%

DEN · 55m · leaves 16:55 52%

ORD · 50m · leaves 17:32 55%

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.


Southwest WN 4689 BWI 06:20 → ATL Delta DL 1522 ATL 10:10 → CMH Connection details →	1h 55m	5h 28m	100%	88%
Southwest WN 884 BWI 08:15 → BOS American AA 3470 BOS 12:40 → CMH Connection details →	2h 50m	6h 41m	100%	86%
Frontier F9 4427 BWI 08:36 → ATL Delta DL 2200 ATL 14:25 → CMH Connection details →	3h 38m	7h 24m	97%	84%

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