Sun, Oct 4 has passed, so this is the 12-month record.

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

Nonstops (seasonal or thin)


Southwest	TUL	BNA	1h 35m	83%	0.4%	514	Flying now

Best connections, one ticket

Most reliable Quickest (80%+ on time)

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


United Details →	TUL 06:00 → DEN 07:00UA 5667 · flown by SkyWest	1h 00m Denver	DEN 08:00 → BNA 11:42UA 605	5h 42m	94%	86%
United Details →	TUL 07:15 → ORD 09:17UA 2653	3h 12m Chicago	ORD 12:29 → BNA 14:14UA 3634 · flown by Republic	6h 59m	97%	85%
Delta Details →	TUL 06:00 → ATL 09:00DL 1259	2h 21m Atlanta	ATL 11:21 → BNA 11:33DL 2867	5h 33m	97%	82%
United Details →	TUL 05:00 → IAH 06:43UA 4041 · flown by Mesa	57m Houston	IAH 07:40 → BNA 09:47UA 2174	4h 47m	93%	81%
United Details →	TUL 07:00 → IAH 08:46UA 3984 · flown by Mesa	3h 09m Houston	IAH 11:55 → BNA 14:02UA 1318	7h 02m	98%	78%
American Details →	TUL 05:00 → DFW 06:17AA 3988 · flown by Envoy	1h 08m Dallas-Fort Worth	DFW 07:25 → BNA 09:26AA 3397 · flown by Envoy	4h 26m	93%	77%
Delta Details →	TUL 16:45 → ATL 19:50DL 1186	3h 10m Atlanta	ATL 23:00 → BNA 23:15DL 3121	6h 30m	99%	75%
Delta Details →	TUL 10:11 → ATL 13:14DL 2754	1h 59m Atlanta	ATL 15:13 → BNA 15:26DL 3142	5h 15m	99%	71%
Tight connection: often missed
Delta Details →	TUL 18:49 → ATL 21:59DL 2837	1h 01m Atlanta	ATL 23:00 → BNA 23:15DL 3121	4h 26m	75%	56%
American Details →	TUL 07:47 → DFW 09:12AA 3095	48m Dallas-Fort Worth	DFW 10:00 → BNA 11:53AA 1520	4h 06m	67%	49%
Southwest Details →	TUL 16:05 → MDW 17:50WN 2717	50m Chicago	MDW 18:40 → BNA 20:10WN 1073	4h 05m	36%	16%

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

DEN · 1h 00m · leaves 06:00 6%

IAH · 57m · leaves 05:00 7%

DFW · 1h 08m · leaves 05:00 7%

Afternoon and evening

IAH · 51m · leaves 13:41 21%

ATL · 1h 01m · leaves 18:49 25%

MDW · 50m · leaves 16:05 64%

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 3590 TUL 06:45 → ORD United UA 3634 ORD 12:29 → BNA Connection details →	3h 32m	7h 29m	99%	87%
Southwest WN 1676 TUL 06:00 → DEN United UA 1048 DEN 09:50 → BNA Connection details →	3h 00m	7h 33m	98%	80%
United UA 1029 TUL 09:22 → DEN Southwest WN 1486 DEN 12:05 → BNA Connection details →	1h 55m	6h 18m	89%	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