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 87% on time.

Nonstops (seasonal or thin)


Alaska	PDX	PHL	5h 06m	91%	0.0%	80	Flying now
American	PDX	PHL	5h 13m	85%	2.7%	182	Flying now

Best connections, one ticket

Most reliable Quickest (80%+ on time)

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


Southwest Details →	PDX 23:30 → MDW 05:20WN 3203	3h 40m Chicago	MDW 09:00 → PHL 11:55 +1WN 4901	9h 25m	100%	94%
United Details →	PDX 05:15 → SFO 07:01UA 1896	1h 37m San Francisco	SFO 08:38 → PHL 17:17UA 2431	9h 02m	98%	93%
United Details →	PDX 22:40 → ORD 04:45UA 2094	2h 30m Chicago	ORD 07:15 → PHL 10:30 +1UA 2038	8h 50m	100%	89%
Alaska Details →	PDX 17:30 → SEA 18:33AS 430	3h 29m Seattle	SEA 22:02 → PHL 06:13 +1AS 522	9h 43m	100%	88%
United Details →	PDX 05:00 → DEN 08:31UA 459	1h 04m Denver	DEN 09:35 → PHL 15:12UA 1575	7h 12m	97%	85%
Delta Details →	PDX 05:45 → SLC 08:39DL 1270	2h 41m Salt Lake City	SLC 11:20 → PHL 17:39DL 2022	8h 55m	100%	85%
Delta Details →	PDX 00:33 → MSP 05:49DL 2359	1h 21m Minneapolis	MSP 07:10 → PHL 10:47DL 2688	7h 14m	96%	84%
United Details →	PDX 18:03 → SFO 19:53UA 1656	3h 27m San Francisco	SFO 23:20 → PHL 07:50 +1UA 2854	10h 47m	100%	83%
Tight connection: often missed
American Details →	PDX 11:26 → ORD 17:42AA 2284	1h 06m Chicago	ORD 18:48 → PHL 21:59AA 2443	7h 40m	72%	39%
American Details →	PDX 13:34 → DFW 19:31AA 2286	48m Dallas-Fort Worth	DFW 20:19 → PHL 00:35 +1AA 2542	8h 01m	49%	26%
American Details →	PDX 11:54 → DFW 17:49AA 2287	46m Dallas-Fort Worth	DFW 18:35 → PHL 22:57AA 3242	8h 03m	55%	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 04m · leaves 05:00 3%

SEA · 1h 11m · leaves 06:19 3%

DFW · 1h 17m · leaves 05:07 8%

Afternoon and evening

MDW · 1h 10m · leaves 11:50 24%

ORD · 1h 06m · leaves 11:26 28%

DFW · 48m · leaves 13:34 51%

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.


Delta DL 3918 PDX 17:50 → SEA Alaska AS 522 SEA 22:02 → PHL Connection details →	2h 57m	9h 23m	98%	86%
Alaska AS 436 PDX 21:56 → BOS American AA 3225 BOS 09:37 → PHL Connection details →	3h 17m	10h 16m	99%	86%
Southwest WN 4732 PDX 16:25 → LAS American AA 1121 LAS 22:12 → PHL Connection details →	3h 32m	10h 37m	100%	85%

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