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 7% of the time at 8 am and 1 time in 4 at 6 pm.

Nonstops


Delta	SEA	BNA	4h 29m	83%	1.0%	512	Flying now
Alaska	SEA	BNA	4h 28m	80%	0.9%	843	Flying now
Southwest	SEA	BNA	4h 15m	68%	0.0%	121	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 2 h ahead of Seattle). Layovers up to 4 hours. Pick a connection for the details.


Delta Details →	SEA 22:58 → ATL 06:45DL 409	1h 46m Atlanta	ATL 08:31 → BNA 08:43 +1DL 3069	7h 45m	100%	90%
American Details →	SEA 20:45 → MIA 05:37AA 1471	2h 44m Miami	MIA 08:21 → BNA 09:47 +1AA 1521	11h 00m	97%	90%
United Details →	SEA 23:11 → ORD 05:18UA 747	3h 22m Chicago	ORD 08:40 → BNA 10:34 +1UA 5304 · flown by SkyWest	9h 23m	98%	88%
Delta Details →	SEA 21:45 → ATL 05:36DL 567	1h 54m Atlanta	ATL 07:30 → BNA 07:38 +1DL 2250	7h 53m	98%	88%
Delta Details →	SEA 23:59 → ATL 07:46DL 652	3h 35m Atlanta	ATL 11:21 → BNA 11:33 +1DL 2867	9h 34m	100%	87%
Delta Details →	SEA 06:05 → MSP 11:24DL 943	1h 31m Minneapolis	MSP 12:55 → BNA 15:00DL 2843	6h 55m	97%	85%
Delta Details →	SEA 23:59 → MSP 05:17DL 953	1h 38m Minneapolis	MSP 06:55 → BNA 08:57 +1DL 2724	6h 58m	97%	85%
Delta Details →	SEA 05:30 → SLC 08:30DL 1128	55m Salt Lake City	SLC 09:25 → BNA 13:44DL 2214	6h 14m	93%	83%
Tight connection: often missed
Delta Details →	SEA 14:55 → LAX 17:40DL 2830	51m Los Angeles	LAX 18:31 → BNA 00:33 +1DL 858	7h 38m	74%	61%
Delta Details →	SEA 08:40 → ATL 16:33DL 797	58m Atlanta	ATL 17:31 → BNA 17:50DL 719	7h 10m	67%	47%
United Details →	SEA 10:52 → ORD 17:05UA 2835	53m Chicago	ORD 17:58 → BNA 19:44UA 2784	6h 52m	60%	36%

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

DEN · 1h 07m · leaves 05:00 2%

SLC · 55m · leaves 05:30 7%

JFK · 1h 10m · leaves 22:20 9%

Afternoon and evening

ATL · 58m · leaves 08:40 33%

AUS · 1h 05m · leaves 13:30 40%

ORD · 53m · leaves 10:52 40%

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.


Alaska AS 1348 SEA 16:45 → SAN Southwest WN 3480 SAN 22:40 → BNA Connection details →	3h 04m	10h 00m	96%	90%
Alaska AS 524 SEA 18:10 → LAX American AA 2149 LAX 23:59 → BNA Connection details →	2h 59m	9h 58m	99%	88%
Alaska AS 464 SEA 23:31 → ATL Delta DL 2867 ATL 11:21 → BNA Connection details →	3h 57m	10h 02m	100%	87%

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