Connect in the morning. The same one-hour layover misses 8% of the time at 8 am and 2 times in 5 at 8 pm.
Nonstops (seasonal or thin)
Nonstop details →Best connections, any airlines
Ranked by chance you reach Portland on time. Total trip = scheduled departure to arrival, layover included (Portland is 3 h behind Philadelphia). Layovers up to 4 hours. Pick a connection for the details.
| UnitedDetails → | PHL 08:00 → DEN 10:01UA 2307 | 3h 26m Denver | DEN 13:27 → PDX 15:13UA 2455 | 10h 13m | 100% | 90% |
| Delta + Alaskatwo ticketsDetails → | PHL 07:23 → SLC 10:06DL 2023 | 2h 40m Salt Lake City | SLC 12:46 → PDX 13:49AS 3117 · flown by SkyWest | 9h 26m | 97% | 88% |
| AlaskaDetails → | PHL 07:33 → SEA 10:32AS 277 | 3h 13m Seattle | SEA 13:45 → PDX 14:48AS 3204 · flown by SkyWest | 10h 15m | 100% | 88% |
| American + Alaskatwo ticketsDetails → | PHL 08:30 → LAX 11:24AA 824 | 3h 03m Los Angeles | LAX 14:27 → PDX 16:47AS 1315 | 11h 17m | 97% | 88% |
| American + Unitedtwo ticketsDetails → | PHL 08:27 → SFO 11:29AA 1524 | 3h 26m San Francisco | SFO 14:55 → PDX 16:47UA 2851 | 11h 20m | 99% | 86% |
| American + Frontiertwo ticketsDetails → | PHL 09:35 → DEN 11:56AA 3312 | 3h 12m Denver | DEN 15:08 → PDX 16:51F9 2553 | 10h 18m | 99% | 85% |
| American + Alaskatwo ticketsDetails → | PHL 11:03 → AUS 13:53AA 1401 | 3h 48m Austin | AUS 17:41 → PDX 19:50AS 1396 | 11h 47m | 100% | 85% |
| UnitedDetails → | PHL 10:00 → DEN 12:01UA 1537 | 3h 59m Denver | DEN 16:00 → PDX 17:46UA 1337 | 10h 46m | 100% | 84% |
| Tight connection: often missed | ||||||
| UnitedDetails → | PHL 16:14 → DEN 18:25UA 2644 | 1h 05m Denver | DEN 19:30 → PDX 21:15UA 498 | 8h 01m | 64% | 51% |
| AlaskaDetails → | PHL 16:26 → SEA 19:30AS 443 | 55m Seattle | SEA 20:25 → PDX 21:22AS 2387 · flown by Horizon | 7h 56m | 61% | 49% |
| AmericanDetails → | PHL 17:30 → PHX 19:37AA 1984 | 48m Phoenix | PHX 20:25 → PDX 23:08AA 561 | 8h 38m | 46% | 30% |
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.
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
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.
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