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 8% of the time at 8 am and 2 times in 5 at 9 pm.

Nonstops


Southwest	BNA	CMH	1h 20m	79%	0.6%	1,035	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 (Columbus is 1 h ahead of Nashville). Layovers up to 4 hours. Pick a connection for the details.


Southwest Details →	BNA 05:10 → MDW 06:45WN 573	1h 00m Chicago	MDW 07:45 → CMH 10:05WN 4093	3h 55m	98%	91%
Southwest Details →	BNA 06:15 → STL 07:35WN 679	2h 30m St Louis	STL 10:05 → CMH 12:28WN 3902	5h 10m	100%	90%
Delta Details →	BNA 06:05 → DTW 08:49DL 2439	1h 26m Detroit	DTW 10:15 → CMH 11:27DL 5810 · flown by Republic	4h 22m	97%	90%
Southwest Details →	BNA 05:10 → MCO 08:00WN 564	2h 00m Orlando	MCO 10:00 → CMH 12:15WN 1187	6h 05m	100%	88%
Southwest Details →	BNA 06:45 → BWI 09:35WN 462	1h 10m Baltimore	BWI 10:45 → CMH 12:10WN 4524	4h 25m	94%	87%
American Details →	BNA 05:38 → MIA 09:03AA 1342	1h 29m Miami	MIA 10:32 → CMH 13:25AA 4163 · flown by Envoy	6h 47m	98%	87%
Delta Details →	BNA 17:41 → DTW 20:29DL 2316	2h 21m Detroit	DTW 22:50 → CMH 23:56DL 5634 · flown by Republic	5h 15m	97%	86%
Delta Details →	BNA 06:15 → ATL 08:31DL 3001	1h 39m Atlanta	ATL 10:10 → CMH 11:48DL 1522	4h 33m	98%	85%
Tight connection: often missed
Delta Details →	BNA 16:31 → ATL 18:49DL 3142	1h 05m Atlanta	ATL 19:54 → CMH 21:31DL 1545	4h 00m	73%	47%
Southwest Details →	BNA 18:05 → BWI 21:00WN 467	1h 25m Baltimore	BWI 22:25 → CMH 23:50WN 4157	4h 45m	60%	36%
American Details →	BNA 17:41 → ORD 19:55AA 1570	59m Chicago	ORD 20:54 → CMH 23:32AA 4445 · flown by Republic	4h 51m	50%	34%

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

MDW · 1h 00m · leaves 05:10 2%

DAL · 1h 00m · leaves 05:10 4%

BWI · 1h 10m · leaves 06:45 6%

Afternoon and evening

DEN · 1h 00m · leaves 16:50 61%

MDW · 1h 02m · leaves 16:15 68%

MIA · 50m · leaves 17:27 75%

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 1271 BNA 05:15 → AUS Delta DL 4028 AUS 09:20 → CMH Connection details →	1h 55m	7h 04m	100%	87%
Southwest WN 4815 BNA 17:22 → DTW Delta DL 5634 DTW 22:50 → CMH Connection details →	2h 48m	5h 34m	96%	87%
American AA 3439 BNA 10:42 → ORD United UA 3570 ORD 16:34 → CMH Connection details →	3h 56m	7h 31m	100%	83%

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