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

Nonstops (seasonal or thin)


Southwest	TYS	BNA	1h 05m	83%	0.0%	297	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 (Nashville is 1 h behind Knoxville). Layovers up to 4 hours. Pick a connection for the details.


United Details →	TYS 06:00 → ORD 06:59UA 2483	1h 41m Chicago	ORD 08:40 → BNA 10:34UA 5304 · flown by SkyWest	5h 34m	97%	88%
Delta Details →	TYS 05:40 → ATL 06:44DL 3015	1h 47m Atlanta	ATL 08:31 → BNA 08:43DL 3069	4h 03m	97%	86%
United Details →	TYS 10:18 → ORD 11:23UA 4584 · flown by GoJet	1h 06m Chicago	ORD 12:29 → BNA 14:14UA 3634 · flown by Republic	4h 56m	97%	86%
Delta Details →	TYS 07:15 → DTW 09:04DL 5196 · flown by Endeavor	3h 21m Detroit	DTW 12:25 → BNA 13:06DL 1557	6h 51m	95%	83%
United Details →	TYS 05:45 → IAD 07:30UA 4311 · flown by CommuteAir	1h 00m Dulles	IAD 08:30 → BNA 09:29UA 1366	4h 44m	91%	82%
Delta Details →	TYS 07:35 → ATL 08:46DL 5317 · flown by Endeavor	2h 35m Atlanta	ATL 11:21 → BNA 11:33DL 2867	4h 58m	94%	81%
American Details →	TYS 05:00 → CLT 06:23AA 5954 · flown by Piedmont	2h 42m Charlotte	CLT 09:05 → BNA 09:49AA 5083 · flown by PSA	5h 49m	96%	79%
Delta Details →	TYS 10:26 → ATL 11:30DL 1290	2h 21m Atlanta	ATL 13:51 → BNA 14:00DL 3159	4h 34m	99%	76%
Tight connection: often missed
American Details →	TYS 18:37 → PHL 20:39AA 5952 · flown by Piedmont	51m Philadelphia	PHL 21:30 → BNA 22:46AA 2277	5h 09m	67%	37%
American Details →	TYS 17:31 → DFW 19:04AA 2876	1h 08m Dallas-Fort Worth	DFW 20:12 → BNA 22:08AA 1500	5h 36m	63%	31%
Southwest Details →	TYS 16:20 → DEN 17:35WN 1645	50m Denver	DEN 18:25 → BNA 22:05WN 1488	6h 45m	51%	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

IAD · 1h 00m · leaves 05:45 9%

ATL · 46m · leaves 05:40 11%

CLT · 55m · leaves 08:56 15%

Afternoon and evening

PHL · 51m · leaves 18:37 33%

DFW · 1h 08m · leaves 17:31 37%

DEN · 50m · leaves 16:20 49%

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 3726 TYS 07:15 → ORD United UA 2414 ORD 10:37 → BNA Connection details →	2h 17m	6h 14m	96%	78%
United UA 2483 TYS 06:00 → ORD American AA 1650 ORD 10:00 → BNA Connection details →	3h 01m	6h 37m	97%	74%
Delta DL 4698 TYS 15:59 → DTW Southwest WN 1776 DTW 21:15 → BNA Connection details →	3h 32m	6h 51m	98%	72%

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