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

No clear winner: American’s TYS → DFW flights land within a few points of 78% on time whatever the hour.

Nonstops


American	TYS	DFW	2h 35m	78%	3.8%	1,738	Flying now

Best connections, one ticket

Most reliable Quickest (80%+ on time)

Ranked by chance you reach Dallas-Fort Worth on time. Total trip = scheduled departure to arrival, layover included (Dallas-Fort Worth is 1 h behind Knoxville). Layovers up to 4 hours. Pick a connection for the details.


Delta Details →	TYS 05:40 → ATL 06:44DL 3015	3h 08m Atlanta	ATL 09:52 → DFW 11:12DL 961	6h 36m	98%	82%
Delta Details →	TYS 07:15 → DTW 09:04DL 5196 · flown by Endeavor	3h 41m Detroit	DTW 12:45 → DFW 14:32DL 1041	8h 19m	96%	80%
United Details →	TYS 05:45 → IAD 07:30UA 4311 · flown by CommuteAir	1h 00m Dulles	IAD 08:30 → DFW 10:53UA 2471	6h 08m	91%	80%
Delta Details →	TYS 06:45 → MSP 08:18DL 5523 · flown by Endeavor	1h 45m Minneapolis	MSP 10:03 → DFW 12:30DL 2970	6h 48m	94%	77%
United Details →	TYS 07:15 → IAH 08:40UA 6298 · flown by Mesa	3h 25m Houston	IAH 12:05 → DFW 13:34UA 4024 · flown by Mesa	7h 19m	96%	77%
United Details →	TYS 06:00 → ORD 06:59UA 2483	1h 46m Chicago	ORD 08:45 → DFW 11:29UA 528	6h 29m	97%	77%
American Details →	TYS 11:03 → CLT 12:24AA 5950 · flown by Piedmont	2h 40m Charlotte	CLT 15:04 → DFW 16:58AA 1709	6h 55m	97%	76%
Delta Details →	TYS 07:35 → ATL 08:46DL 5317 · flown by Endeavor	2h 42m Atlanta	ATL 11:28 → DFW 12:50DL 414	6h 15m	94%	75%
Tight connection: often missed
American Details →	TYS 06:00 → MIA 08:12AA 2730	48m Miami	MIA 09:00 → DFW 11:12AA 1227	6h 12m	74%	60%
American Details →	TYS 11:18 → DCA 13:00AA 5647 · flown by PSA	47m Washington	DCA 13:47 → DFW 16:14AA 1177	5h 56m	53%	39%
American Details →	TYS 11:29 → ORD 12:31AA 6445 · flown by SkyWest	54m Chicago	ORD 13:25 → DFW 15:59AA 1120	5h 30m	68%	32%

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

ATL · 56m · leaves 05:40 7%

IAD · 1h 00m · leaves 05:45 9%

CLT · 1h 17m · leaves 05:00 9%

Afternoon and evening

ATL · 1h 05m · leaves 13:59 24%

CLT · 1h 02m · leaves 20:05 41%

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 1077 TYS 08:00 → BWI American AA 2747 BWI 12:00 → DFW Connection details →	2h 25m	7h 27m	96%	90%
Southwest WN 3388 TYS 07:00 → BNA American AA 1476 BNA 09:57 → DFW Connection details →	3h 02m	6h 14m	100%	83%
Delta DL 3015 TYS 05:40 → ATL American AA 3390 ATL 09:43 → DFW Connection details →	2h 59m	6h 33m	97%	81%

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