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 83% on time.

Nonstops


Southwest	PIT	BNA	1h 40m	83%	0.7%	1,015	Flying now
Allegiant	PIT	BNA	1h 35m	83%	1.2%	84	Not 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 Pittsburgh). Layovers up to 4 hours. Pick a connection for the details.


United Details →	PIT 06:06 → IAD 07:18UA 3679 · flown by Republic	1h 12m Dulles	IAD 08:30 → BNA 09:29UA 1366	4h 23m	98%	87%
United Details →	PIT 08:36 → ORD 09:30UA 3461 · flown by Republic	2h 59m Chicago	ORD 12:29 → BNA 14:14UA 3634 · flown by Republic	6h 38m	99%	87%
Delta Details →	PIT 05:45 → ATL 07:25DL 1504	3h 56m Atlanta	ATL 11:21 → BNA 11:33DL 2867	6h 48m	99%	85%
Southwest Details →	PIT 05:50 → BWI 07:00WN 4417	2h 45m Baltimore	BWI 09:45 → BNA 10:35WN 487	5h 45m	100%	84%
Southwest Details →	PIT 05:30 → TPA 07:50WN 4929	3h 10m Tampa	TPA 11:00 → BNA 11:55WN 4003	7h 25m	100%	82%
United Details →	PIT 10:30 → IAD 11:42UA 6184 · flown by Mesa	1h 08m Dulles	IAD 12:50 → BNA 13:49UA 213	4h 19m	94%	81%
American Details →	PIT 06:23 → ORD 07:21AA 4427 · flown by Republic	1h 08m Chicago	ORD 08:29 → BNA 10:11AA 3439 · flown by Envoy	4h 49m	93%	80%
Delta Details →	PIT 07:00 → ATL 08:49DL 1383	1h 03m Atlanta	ATL 09:52 → BNA 10:06DL 1155	4h 05m	94%	79%
Tight connection: often missed
Delta Details →	PIT 06:30 → DTW 07:44DL 5319 · flown by Endeavor	46m Detroit	DTW 08:30 → BNA 09:11DL 2682	3h 41m	69%	55%
American Details →	PIT 15:11 → DFW 17:19AA 2311	59m Dallas-Fort Worth	DFW 18:18 → BNA 20:17AA 1076	6h 06m	70%	41%
Delta Details →	PIT 17:04 → JFK 18:55DL 5085 · flown by Endeavor	1h 05m New York	JFK 20:00 → BNA 22:05DL 4908 · flown by Endeavor	5h 50m	55%	33%

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 12m · leaves 06:06 2%

ORD · 1h 00m · leaves 08:02 6%

ATL · 1h 03m · leaves 07:00 6%

Afternoon and evening

DFW · 59m · leaves 15:11 30%

JFK · 1h 05m · leaves 17:04 45%

MIA · 1h 10m · leaves 18:57 46%

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 4625 PIT 08:02 → ORD United UA 3634 ORD 12:29 → BNA Connection details →	3h 29m	7h 12m	99%	87%
American AA 4529 PIT 06:14 → DCA Southwest WN 1426 DCA 10:35 → BNA Connection details →	3h 01m	6h 16m	100%	82%
Delta DL 5690 PIT 06:05 → BOS JetBlue B6 1807 BOS 10:28 → BNA Connection details →	2h 27m	7h 12m	98%	82%

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