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 1 time in 10 at 9 am and 43% of the time at 5 pm.

Nonstops


United	DEN	BNA	2h 42m	80%	0.4%	1,178	Flying now
Frontier	DEN	BNA	2h 41m	77%	0.9%	331	Flying now
Southwest	DEN	BNA	2h 30m	74%	0.6%	2,132	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 ahead of Denver). Layovers up to 4 hours. Pick a connection for the details.


Southwest Details →	DEN 23:55 → MCO 05:40WN 1597	1h 55m Orlando	MCO 07:35 → BNA 08:35 +1WN 550	7h 40m	100%	94%
Delta Details →	DEN 00:40 → ATL 05:42DL 302	2h 49m Atlanta	ATL 08:31 → BNA 08:43DL 3069	7h 03m	99%	89%
Delta Details →	DEN 05:40 → SLC 07:13DL 2544	2h 12m Salt Lake City	SLC 09:25 → BNA 13:44DL 2214	7h 04m	96%	86%
United Details →	DEN 06:00 → ORD 09:42UA 1377	2h 47m Chicago	ORD 12:29 → BNA 14:14UA 3634 · flown by Republic	7h 14m	98%	86%
Delta Details →	DEN 06:00 → MSP 08:59DL 1129	3h 56m Minneapolis	MSP 12:55 → BNA 15:00DL 2843	8h 00m	99%	86%
Delta Details →	DEN 06:05 → DTW 10:57DL 1745	1h 28m Detroit	DTW 12:25 → BNA 13:06DL 1557	6h 01m	96%	84%
Delta Details →	DEN 00:59 → DTW 05:48DL 1096	2h 42m Detroit	DTW 08:30 → BNA 09:11DL 2682	7h 12m	97%	83%
United Details →	DEN 06:13 → IAD 11:41UA 1279	1h 09m Dulles	IAD 12:50 → BNA 13:49UA 213	6h 36m	94%	82%
Tight connection: often missed
United Details →	DEN 13:25 → ORD 17:05UA 617	53m Chicago	ORD 17:58 → BNA 19:44UA 2784	5h 19m	57%	34%
American Details →	DEN 14:22 → ORD 18:16AA 1760	1h 24m Chicago	ORD 19:40 → BNA 21:25AA 6326 · flown by SkyWest	6h 03m	70%	33%
American Details →	DEN 15:11 → DFW 18:21AA 420	53m Dallas-Fort Worth	DFW 19:14 → BNA 21:11AA 3169	5h 00m	62%	22%

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

EWR · 1h 19m · leaves 06:00 2%

IAD · 1h 09m · leaves 06:13 6%

STL · 1h 00m · leaves 07:20 7%

Afternoon and evening

ORD · 53m · leaves 13:25 43%

SEA · 55m · leaves 19:50 69%

BOS · 50m · leaves 13:20 72%

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.


Frontier F9 1150 DEN 06:20 → MSP Delta DL 2843 MSP 12:55 → BNA Connection details →	3h 32m	7h 40m	100%	88%
Frontier F9 1450 DEN 23:46 → ATL Delta DL 3069 ATL 08:31 → BNA Connection details →	3h 29m	7h 57m	98%	87%
Southwest WN 4027 DEN 10:05 → SLC Delta DL 2205 SLC 13:45 → BNA Connection details →	2h 00m	7h 08m	94%	80%

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