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

The nonstop is quickest: Southwest PWM → BNA (2h 40m), on time 3 times in 4. United via Dulles (5h 14m) is more reliable, 87%, but takes 2h 34m longer.

Nonstops (seasonal or thin)


Southwest	PWM	BNA	2h 40m	75%	0.6%	159	Flying now

Best connections, any airlines

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 Portland). Layovers up to 4 hours. Pick a connection for the details.


United Details →	PWM 05:15 → IAD 07:00UA 1926	1h 30m Dulles	IAD 08:30 → BNA 09:29UA 1366	5h 14m	97%	87%
Delta Details →	PWM 06:00 → ATL 08:45DL 1515	2h 36m Atlanta	ATL 11:21 → BNA 11:33DL 2867	6h 33m	99%	86%
Southwest Details →	PWM 05:35 → BWI 07:15WN 4674	2h 30m Baltimore	BWI 09:45 → BNA 10:35WN 487	6h 00m	98%	83%
United Details →	PWM 06:00 → ORD 08:00UA 723	2h 37m Chicago	ORD 10:37 → BNA 12:29UA 2414	7h 29m	100%	82%
Delta Details →	PWM 11:48 → MSP 13:50DL 1766	1h 39m Minneapolis	MSP 15:29 → BNA 17:35DL 2612	6h 47m	98%	76%
American Details →	PWM 07:16 → CLT 09:46AA 2966	1h 34m Charlotte	CLT 11:20 → BNA 12:02AA 5082 · flown by PSA	5h 46m	97%	75%
American + Southwesttwo ticketsDetails →	PWM 05:45 → DCA 07:45AA 4351 · flown by Republic	2h 50m Washington	DCA 10:35 → BNA 11:30WN 1426	6h 45m	98%	74%
United Details →	PWM 09:55 → IAD 11:46UA 3465 · flown by Republic	1h 04m Dulles	IAD 12:50 → BNA 13:49UA 213	4h 54m	88%	73%
Tight connection: often missed
Delta Details →	PWM 18:59 → ATL 21:56DL 488	1h 04m Atlanta	ATL 23:00 → BNA 23:15DL 3121	5h 16m	73%	53%
American Details →	PWM 14:25 → CLT 17:02AA 2348	55m Charlotte	CLT 17:57 → BNA 18:28AA 1497	5h 03m	72%	40%
United Details →	PWM 17:00 → ORD 19:00UA 1182	57m Chicago	ORD 19:57 → BNA 21:45UA 2063	5h 45m	48%	23%

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 · 1h 07m · leaves 06:00 5%

JFK · 1h 17m · leaves 06:00 5%

IAD · 1h 04m · leaves 09:55 12%

Afternoon and evening

ATL · 1h 04m · leaves 18:59 27%

CLT · 55m · leaves 14:25 28%

BWI · 50m · leaves 17:20 35%

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.

The table above includes two-ticket connections (marked “two tickets”), held to the 90-minute minimum. One ticket only →

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