Showing Southwest only (incl. its regional partners)All airlines ×

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

No nonstop, and no clear pattern: the best connection reaches Atlanta on time 9 times in 10.

Best connections, one ticket

Ranked by chance you reach Atlanta on time. Total trip = scheduled departure to arrival, layover included (Atlanta is 3 h ahead of Portland). Layovers up to 4 hours. Pick a connection for the details.


Southwest Details →	PDX 21:20 → BWI 05:15WN 3194	3h 05m Baltimore	BWI 08:20 → ATL 10:20 +1WN 3931	9h 58m	98%	90%
Southwest Details →	PDX 23:30 → MDW 05:20WN 3203	1h 55m Chicago	MDW 07:15 → ATL 10:05 +1WN 3054	7h 35m	98%	90%
Southwest Details →	PDX 18:00 → LAS 20:15WN 2256	2h 35m Las Vegas	LAS 22:50 → ATL 05:45 +1WN 2179	8h 45m	96%	81%
Southwest Details →	PDX 05:00 → LAS 07:10WN 344	1h 15m Las Vegas	LAS 08:25 → ATL 15:25WN 4482	7h 25m	96%	71%
Southwest Details →	PDX 09:15 → PHX 11:50WN 3207	2h 25m Phoenix	PHX 14:15 → ATL 20:55WN 3232	8h 40m	100%	69%
Southwest Details →	PDX 05:50 → DEN 09:15WN 3195	1h 00m Denver	DEN 10:15 → ATL 15:20WN 2258	6h 25m	93%	60%
Southwest Details →	PDX 06:00 → MDW 11:50WN 1148	2h 50m Chicago	MDW 14:40 → ATL 17:35WN 4592	8h 35m	96%	38%
Southwest Details →	PDX 07:30 → DEN 11:00WN 4099	3h 35m Denver	DEN 14:35 → ATL 19:30WN 4170	9h 00m	100%	31%
Tight connection: often missed
Southwest Details →	PDX 11:50 → MDW 17:45WN 3202	1h 05m Chicago	MDW 18:50 → ATL 21:45WN 4140	6h 55m	71%	25%

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 00m · leaves 05:50 7%

BWI · 1h 05m · leaves 21:20 17%

Afternoon and evening

MDW · 1h 05m · leaves 11:50 29%

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.

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