PDX Routes To Be Affected By Government Shutdown — ChatGPT — November 7, 2025

Safest

PDX–DFW is one of the safest routes in a 10% cancellation scenario.

It wasn’t listed in the original list  because it falls into the "unlikely to be cut" category along with routes like:

• PDX–SEA

• PDX–SFO

• PDX–DEN

• PDX–PHX

• PDX–LAX

Original List

Most likely to be cancelled first (High vulnerability — low frequency / seasonal / single-carrier)

1. PDX — Keflavík (KEF), Iceland — seasonal transatlantic or limited-season service; typically few weekly departures. (Seasonal / leisure). Portland Monthly

2. PDX — London (LHR) — long-haul transatlantic with limited weekly frequencies compared to domestic flows (1–7/wk historically). (Long-haul / low frequency). FlightConnections+1

3. PDX — Amsterdam (AMS) — long-haul, often limited weekly schedule. (Long-haul / low frequency). FlightConnections

4. PDX — Cancún (CUN) — seasonal leisure route (typically concentrated in high-travel months). Portland Monthly

5. PDX — Guadalajara (GDL) / other Mexico leisure cities — often fewer frequencies than major domestic routes; sometimes seasonal. FlightsFrom

6. PDX — Bozeman (BZN) — small non-hub mountain/leisure city, limited daily flights (often 1–2/day). FlightConnections

7. PDX — Missoula (MSO) — small city non-hub, typically low frequency (1–2/day or less). FlightConnections

8. PDX — Kalispell / Glacier (FCA) — seasonal/leisure, low frequency. FlightConnections

9. PDX — Provo (PVU) — Allegiant style service (inherently lower-frequency/low-cost leisure). FlightConnections

10. PDX — Idaho Falls / Jackson-area — small regional leisure markets, low frequency. FlightConnections

Medium vulnerability (one carrier or limited daily frequency but not strictly seasonal)

11. PDX — Guadalajara (GDL) (if served at reduced frequency) — (Mexico business/leisure mix). FlightsFrom

12. PDX — New York (EWR / JFK) when served by only one carrier on certain city-pairs (some flights can be 1–2/day depending on season). FlightsFrom

13. PDX — Minneapolis (MSP) (some frequencies by multiple carriers but spare flights are less essential than core West Coast trunk routes). FlightsFrom

14. PDX — Nashville (BNA) — usually fewer daily flights than big hubs (single-carrier patterns). FlightConnections

15. PDX — Some Florida cities (e.g., Fort Lauderdale, Tampa) — often medium vulnerability depending on season. FlightConnections

Lower vulnerability (unlikely to be cut early — high frequency / hub links)

16. PDX — Seattle (SEA) — very high frequency (largest route from PDX; huge weekly departures). Airlines will preserve this. FlightsFrom

17. PDX — San Francisco (SFO) / San Jose (SJC) / LAX — high-frequency West Coast trunk routes; lower chance of cancellation in a 10% cut. FlightConnections

18. PDX — Phoenix (PHX) / Denver (DEN) — hub connectors with multiple daily frequencies; less vulnerable. FlightConnections

19. PDX — Las Vegas (LAS) — multiple carriers and many daily flights; lower vulnerability. FlightConnections

20. PDX — Honolulu / Kahului / Kona (HNL/OGG/KOA) — Hawaiian routes are important leisure routes but often multi-daily; vulnerability depends on season & carrier. FlightConnections