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

No clear winner: airlines and hours on this route all land within a few points of 78% on time.

Nonstops


Southwest	BNA	LAS	4h 05m	78%	0.6%	1,765	Flying now
Frontier	BNA	LAS	3h 59m	67%few flights	0.0%	30	Flying now
Spirit	BNA	LAS	4h 11m	81%	2.3%	220	Not flying now
American	BNA	LAS	–	100%few flights	0.0%	2	Not flying now
Allegiant	BNA	LAS	–	100%few flights	0.0%	2	Not flying now
Delta	BNA	LAS	–	50%few flights	0.0%	2	Not flying now

Best connections, one ticket

Most reliable Quickest (80%+ on time)

Ranked by chance you reach Las Vegas on time. Total trip = scheduled departure to arrival, layover included (Las Vegas is 2 h behind Nashville). Layovers up to 4 hours. Pick a connection for the details.


Southwest Details →	BNA 05:10 → DAL 07:00WN 485	1h 45m Dallas	DAL 08:45 → LAS 09:35WN 695	6h 25m	99%	82%
Southwest Details →	BNA 05:02 → HOU 07:02WN 4430	48m Houston	HOU 07:50 → LAS 09:00WN 1998	5h 53m	82%	80%
American Details →	BNA 07:28 → PHX 09:13AA 3086	1h 11m Phoenix	PHX 10:24 → LAS 11:37AA 2037	6h 09m	87%	78%
Southwest Details →	BNA 06:15 → STL 07:35WN 679	1h 40m St Louis	STL 09:15 → LAS 10:40WN 2327	6h 25m	100%	76%
Southwest Details →	BNA 07:55 → DEN 09:40WN 499	1h 20m Denver	DEN 11:00 → LAS 11:55WN 1561	6h 00m	88%	73%
American Details →	BNA 05:01 → DFW 07:12AA 2821	1h 13m Dallas-Fort Worth	DFW 08:25 → LAS 09:16AA 1584	6h 15m	90%	72%
Delta Details →	BNA 14:01 → SLC 16:37DL 1593	1h 03m Salt Lake City	SLC 17:40 → LAS 18:04DL 1690	6h 03m	88%	65%
Delta Details →	BNA 19:34 → SLC 22:10DL 2209	1h 04m Salt Lake City	SLC 23:14 → LAS 23:40DL 1662	6h 10m	78%	62%
Tight connection: often missed
Southwest Details →	BNA 18:40 → DEN 20:30WN 505	1h 25m Denver	DEN 21:55 → LAS 22:50WN 1567	6h 13m	58%	25%
American Details →	BNA 17:45 → DFW 20:02AA 1496	52m Dallas-Fort Worth	DFW 20:54 → LAS 21:47AA 1797	6h 00m	46%	24%
Southwest Details →	BNA 17:20 → STL 18:40WN 770	1h 00m St Louis	STL 19:40 → LAS 21:05WN 3935	5h 45m	63%	9%

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

DFW · 1h 13m · leaves 05:01 10%

DEN · 1h 20m · leaves 07:55 12%

PHX · 1h 11m · leaves 07:28 13%

Afternoon and evening

MDW · 1h 05m · leaves 21:40 49%

DFW · 52m · leaves 17:45 54%

PHX · 1h 05m · leaves 19:15 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.


Southwest WN 642 BNA 19:15 → PHX Frontier F9 4113 PHX 22:27 → LAS Connection details →	1h 37m	6h 24m	15%	10%

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