Cheapest one-way flights from Portland to Oslo in March from 438€

Best time to book flights for Portland (PDX) to Oslo (OSL) flights at AirHint

AirHint found the following cheapest one-way flights from Portland (PDX) to Oslo (OSL) in March 2025 (see full year).

One-Way flights

22 Mar Alaska Airlines
23 Mar Delta

Also check the deals for return flights from Portland to Oslo in March.

Skyscanner

The deals are updated regularly. The prices may go up as tickets are purchased by other travellers. Only the cheapest flights are offered. Select a price to book and secure these cheap prices.

Book a cheap hotel in Oslo

Cheap car rent in Oslo